diff options
Diffstat (limited to 'mozilla/nsprpub/pr/src/md/windows')
21 files changed, 12262 insertions, 0 deletions
diff --git a/mozilla/nsprpub/pr/src/md/windows/.cvsignore b/mozilla/nsprpub/pr/src/md/windows/.cvsignore new file mode 100644 index 0000000..f3c7a7c --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/.cvsignore @@ -0,0 +1 @@ +Makefile diff --git a/mozilla/nsprpub/pr/src/md/windows/Makefile.in b/mozilla/nsprpub/pr/src/md/windows/Makefile.in new file mode 100644 index 0000000..fbf2987 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/Makefile.in @@ -0,0 +1,104 @@ +# +# ***** BEGIN LICENSE BLOCK ***** +# Version: MPL 1.1/GPL 2.0/LGPL 2.1 +# +# The contents of this file are subject to the Mozilla Public License Version +# 1.1 (the "License"); you may not use this file except in compliance with +# the License. You may obtain a copy of the License at +# http://www.mozilla.org/MPL/ +# +# Software distributed under the License is distributed on an "AS IS" basis, +# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License +# for the specific language governing rights and limitations under the +# License. +# +# The Original Code is the Netscape Portable Runtime (NSPR). +# +# The Initial Developer of the Original Code is +# Netscape Communications Corporation. +# Portions created by the Initial Developer are Copyright (C) 1998-2000 +# the Initial Developer. All Rights Reserved. +# +# Contributor(s): +# +# Alternatively, the contents of this file may be used under the terms of +# either the GNU General Public License Version 2 or later (the "GPL"), or +# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), +# in which case the provisions of the GPL or the LGPL are applicable instead +# of those above. If you wish to allow use of your version of this file only +# under the terms of either the GPL or the LGPL, and not to allow others to +# use your version of this file under the terms of the MPL, indicate your +# decision by deleting the provisions above and replace them with the notice +# and other provisions required by the GPL or the LGPL. If you do not delete +# the provisions above, a recipient may use your version of this file under +# the terms of any one of the MPL, the GPL or the LGPL. +# +# ***** END LICENSE BLOCK ***** + +#! gmake + +MOD_DEPTH = ../../../.. +topsrcdir = @top_srcdir@ +srcdir = @srcdir@ +VPATH = @srcdir@ + +include $(MOD_DEPTH)/config/autoconf.mk + +include $(topsrcdir)/config/config.mk + +ifeq (,$(filter-out WIN95 WINCE WINMO, $(OS_TARGET))) +CSRCS = \ + ntmisc.c \ + ntsec.c \ + ntsem.c \ + ntinrval.c \ + ntgc.c \ + w95thred.c \ + w95io.c \ + w95cv.c \ + w32rng.c \ + w95sock.c \ + win32_errors.c \ + w32ipcsem.c \ + w32poll.c \ + w32shm.c \ + w95dllmain.c \ + $(NULL) +else +CSRCS = \ + ntdllmn.c \ + ntmisc.c \ + ntsec.c \ + ntsem.c \ + ntinrval.c \ + ntgc.c \ + ntthread.c \ + ntio.c \ + win32_errors.c \ + w32ipcsem.c \ + w32poll.c \ + w32rng.c \ + w32shm.c \ + $(NULL) +endif + +TARGETS = $(OBJS) + +INCLUDES = -I$(dist_includedir) -I$(topsrcdir)/pr/include -I$(topsrcdir)/pr/include/private + +DEFINES += -D_NSPR_BUILD_ + +include $(topsrcdir)/config/rules.mk + +export:: $(TARGETS) + +# Bug 122433 workaround: disable global optimization (-Og-) on ntio.c. +ifdef MOZ_OPTIMIZE +ifeq ($(OS_TARGET), WINNT) +ifndef NS_USE_GCC +$(OBJDIR)/ntio.$(OBJ_SUFFIX): ntio.c + @$(MAKE_OBJDIR) + $(CC) -Fo$@ -c $(CFLAGS) -Og- $< +endif +endif +endif diff --git a/mozilla/nsprpub/pr/src/md/windows/ntdllmn.c b/mozilla/nsprpub/pr/src/md/windows/ntdllmn.c new file mode 100644 index 0000000..fa8d25f --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/ntdllmn.c @@ -0,0 +1,88 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * The DLL entry point (DllMain) for NSPR. + * + * The only reason we use DLLMain() now is to find out whether + * the NSPR DLL is statically or dynamically loaded. When + * dynamically loaded, we cannot use static thread-local storage. + * However, static TLS is faster than the TlsXXX() functions. + * So we want to use static TLS whenever we can. A global + * variable _pr_use_static_tls is set in DllMain() during process + * attachment to indicate whether it is safe to use static TLS + * or not. + */ + +#include <windows.h> +#include <primpl.h> + +extern BOOL _pr_use_static_tls; /* defined in ntthread.c */ + +BOOL WINAPI DllMain( + HINSTANCE hinstDLL, + DWORD fdwReason, + LPVOID lpvReserved) +{ +PRThread *me; + + switch (fdwReason) { + case DLL_PROCESS_ATTACH: + /* + * If lpvReserved is NULL, we are dynamically loaded + * and therefore can't use static thread-local storage. + */ + if (lpvReserved == NULL) { + _pr_use_static_tls = FALSE; + } else { + _pr_use_static_tls = TRUE; + } + break; + case DLL_THREAD_ATTACH: + break; + case DLL_THREAD_DETACH: + if (_pr_initialized) { + me = _MD_GET_ATTACHED_THREAD(); + if ((me != NULL) && (me->flags & _PR_ATTACHED)) + _PRI_DetachThread(); + } + break; + case DLL_PROCESS_DETACH: + break; + } + return TRUE; +} diff --git a/mozilla/nsprpub/pr/src/md/windows/ntgc.c b/mozilla/nsprpub/pr/src/md/windows/ntgc.c new file mode 100644 index 0000000..ec31e3e --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/ntgc.c @@ -0,0 +1,130 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * GC related routines + * + */ +#include <windows.h> +#include "primpl.h" + +PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np) +{ +#if defined(_X86_) + CONTEXT context; + context.ContextFlags = CONTEXT_INTEGER; + + if (_PR_IS_NATIVE_THREAD(t)) { + context.ContextFlags |= CONTEXT_CONTROL; + if (GetThreadContext(t->md.handle, &context)) { + t->md.gcContext[0] = context.Eax; + t->md.gcContext[1] = context.Ebx; + t->md.gcContext[2] = context.Ecx; + t->md.gcContext[3] = context.Edx; + t->md.gcContext[4] = context.Esi; + t->md.gcContext[5] = context.Edi; + t->md.gcContext[6] = context.Esp; + t->md.gcContext[7] = context.Ebp; + *np = PR_NUM_GCREGS; + } else { + PR_ASSERT(0);/* XXX */ + } + } else { + /* WARNING WARNING WARNING WARNING WARNING WARNING WARNING + * + * This code is extremely machine dependant and completely + * undocumented by MS. Its only known to work experimentally. + * Ready for a walk on the wild * side? + * + * WARNING WARNING WARNING WARNING WARNING WARNING WARNING */ + +#if !defined WIN95 // Win95 does not have fibers + int *fiberData = t->md.fiber_id; + + /* I found these offsets by disassembling SwitchToFiber(). + * Are your palms sweating yet? + */ + + /* + ** EAX is on the stack (ESP+0) + ** EDX is on the stack (ESP+4) + ** ECX is on the stack (ESP+8) + */ + t->md.gcContext[0] = 0; /* context.Eax */ + t->md.gcContext[1] = fiberData[0x2e]; /* context.Ebx */ + t->md.gcContext[2] = 0; /* context.Ecx */ + t->md.gcContext[3] = 0; /* context.Edx */ + t->md.gcContext[4] = fiberData[0x2d]; /* context.Esi */ + t->md.gcContext[5] = fiberData[0x2c]; /* context.Edi */ + t->md.gcContext[6] = fiberData[0x36]; /* context.Esp */ + t->md.gcContext[7] = fiberData[0x32]; /* context.Ebp */ + *np = PR_NUM_GCREGS; +#endif + } + return (PRWord *)&t->md.gcContext; +#else + PR_NOT_REACHED("not implemented"); + return NULL; +#endif /* defined(_X86_) */ +} + +/* This function is not used right now, but is left as a reference. + * If you ever need to get the fiberID from the currently running fiber, + * this is it. + */ +void * +GetMyFiberID() +{ +#if defined(_X86_) && !defined(__MINGW32__) + void *fiberData; + + /* A pointer to our tib entry is found at FS:[18] + * At offset 10h is the fiberData pointer. The context of the + * fiber is stored in there. + */ + __asm { + mov EDX, FS:[18h] + mov EAX, DWORD PTR [EDX+10h] + mov [fiberData], EAX + } + + return fiberData; +#else + PR_NOT_REACHED("not implemented"); + return NULL; +#endif /* defined(_X86_) */ +} diff --git a/mozilla/nsprpub/pr/src/md/windows/ntinrval.c b/mozilla/nsprpub/pr/src/md/windows/ntinrval.c new file mode 100644 index 0000000..f96c27b --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/ntinrval.c @@ -0,0 +1,79 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * NT interval timers + * + */ + +#include "primpl.h" + +#ifdef WINCE +typedef DWORD (*IntervalFuncType)(void); +static IntervalFuncType intervalFunc; +#endif + +void +_PR_MD_INTERVAL_INIT() +{ +#ifdef WINCE + HMODULE mmtimerlib = LoadLibraryW(L"mmtimer.dll"); /* XXX leaked! */ + if (mmtimerlib) { + intervalFunc = (IntervalFuncType)GetProcAddress(mmtimerlib, + "timeGetTime"); + } else { + intervalFunc = &GetTickCount; + } +#endif +} + +PRIntervalTime +_PR_MD_GET_INTERVAL() +{ + /* milliseconds since system start */ +#ifdef WINCE + return (*intervalFunc)(); +#else + return timeGetTime(); +#endif +} + +PRIntervalTime +_PR_MD_INTERVAL_PER_SEC() +{ + return 1000; +} diff --git a/mozilla/nsprpub/pr/src/md/windows/ntio.c b/mozilla/nsprpub/pr/src/md/windows/ntio.c new file mode 100644 index 0000000..4653503 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/ntio.c @@ -0,0 +1,4642 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Masayuki Nakano <masayuki@d-toybox.com> + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* Windows NT IO module + * + * This module handles IO for LOCAL_SCOPE and GLOBAL_SCOPE threads. + * For LOCAL_SCOPE threads, we're using NT fibers. For GLOBAL_SCOPE threads + * we're using NT-native threads. + * + * When doing IO, we want to use completion ports for optimal performance + * with fibers. But if we use completion ports for all IO, it is difficult + * to project a blocking model with GLOBAL_SCOPE threads. To handle this + * we create an extra thread for completing IO for GLOBAL_SCOPE threads. + * We don't really want to complete IO on a separate thread for LOCAL_SCOPE + * threads because it means extra context switches, which are really slow + * on NT... Since we're using a single completion port, some IO will + * be incorrectly completed on the GLOBAL_SCOPE IO thread; this will mean + * extra context switching; but I don't think there is anything I can do + * about it. + */ + +#include "primpl.h" +#include "pprmwait.h" +#include <direct.h> +#include <mbstring.h> + +static HANDLE _pr_completion_port; +static PRThread *_pr_io_completion_thread; + +#define RECYCLE_SIZE 512 +static struct _MDLock _pr_recycle_lock; +static PRInt32 _pr_recycle_INET_array[RECYCLE_SIZE]; +static PRInt32 _pr_recycle_INET_tail = 0; +static PRInt32 _pr_recycle_INET6_array[RECYCLE_SIZE]; +static PRInt32 _pr_recycle_INET6_tail = 0; + +__declspec(thread) PRThread *_pr_io_restarted_io = NULL; +DWORD _pr_io_restartedIOIndex; /* The thread local storage slot for each + * thread is initialized to NULL. */ + +PRBool _nt_version_gets_lockfile_completion; + +struct _MDLock _pr_ioq_lock; +extern _MDLock _nt_idleLock; +extern PRCList _nt_idleList; +extern PRUint32 _nt_idleCount; + +#define CLOSE_TIMEOUT PR_SecondsToInterval(5) + +/* + * NSPR-to-NT access right mapping table for files. + */ +static DWORD fileAccessTable[] = { + FILE_GENERIC_READ, + FILE_GENERIC_WRITE, + FILE_GENERIC_EXECUTE +}; + +/* + * NSPR-to-NT access right mapping table for directories. + */ +static DWORD dirAccessTable[] = { + FILE_GENERIC_READ, + FILE_GENERIC_WRITE|FILE_DELETE_CHILD, + FILE_GENERIC_EXECUTE +}; + +static PRBool IsPrevCharSlash(const char *str, const char *current); + +#define _NEED_351_FILE_LOCKING_HACK +#ifdef _NEED_351_FILE_LOCKING_HACK +#define _PR_LOCAL_FILE 1 +#define _PR_REMOTE_FILE 2 +PRBool IsFileLocalInit(); +PRInt32 IsFileLocal(HANDLE hFile); +#endif /* _NEED_351_FILE_LOCKING_HACK */ + +static PRInt32 _md_MakeNonblock(HANDLE); + +static PROsfd _nt_nonblock_accept(PRFileDesc *fd, struct sockaddr *addr, int *addrlen, PRIntervalTime); +static PRInt32 _nt_nonblock_connect(PRFileDesc *fd, struct sockaddr *addr, int addrlen, PRIntervalTime); +static PRInt32 _nt_nonblock_recv(PRFileDesc *fd, char *buf, int len, int flags, PRIntervalTime); +static PRInt32 _nt_nonblock_send(PRFileDesc *fd, char *buf, int len, PRIntervalTime); +static PRInt32 _nt_nonblock_writev(PRFileDesc *fd, const PRIOVec *iov, int size, PRIntervalTime); +static PRInt32 _nt_nonblock_sendto(PRFileDesc *, const char *, int, const struct sockaddr *, int, PRIntervalTime); +static PRInt32 _nt_nonblock_recvfrom(PRFileDesc *, char *, int, struct sockaddr *, int *, PRIntervalTime); + +/* + * We cannot associate a fd (a socket) with an I/O completion port + * if the fd is nonblocking or inheritable. + * + * Nonblocking socket I/O won't work if the socket is associated with + * an I/O completion port. + * + * An inheritable fd cannot be associated with an I/O completion port + * because the completion notification of async I/O initiated by the + * child process is still posted to the I/O completion port in the + * parent process. + */ +#define _NT_USE_NB_IO(fd) \ + ((fd)->secret->nonblocking || (fd)->secret->inheritable == _PR_TRI_TRUE) + +/* + * UDP support + * + * UDP is supported on NT by the continuation thread mechanism. + * The code is borrowed from ptio.c in pthreads nspr, hence the + * PT and pt prefixes. This mechanism is in fact general and + * not limited to UDP. For now, only UDP's recvfrom and sendto + * go through the continuation thread if they get WSAEWOULDBLOCK + * on first try. Recv and send on a connected UDP socket still + * goes through asychronous io. + */ + +#define PT_DEFAULT_SELECT_MSEC 100 + +typedef struct pt_Continuation pt_Continuation; +typedef PRBool (*ContinuationFn)(pt_Continuation *op, PRInt16 revent); + +typedef enum pr_ContuationStatus +{ + pt_continuation_sumbitted, + pt_continuation_inprogress, + pt_continuation_abort, + pt_continuation_done +} pr_ContuationStatus; + +struct pt_Continuation +{ + /* These objects are linked in ascending timeout order */ + pt_Continuation *next, *prev; /* self linked list of these things */ + + /* The building of the continuation operation */ + ContinuationFn function; /* what function to continue */ + union { SOCKET osfd; } arg1; /* #1 - the op's fd */ + union { void* buffer; } arg2; /* #2 - primary transfer buffer */ + union { PRIntn amount; } arg3; /* #3 - size of 'buffer' */ + union { PRIntn flags; } arg4; /* #4 - read/write flags */ + union { PRNetAddr *addr; } arg5; /* #5 - send/recv address */ + + PRIntervalTime timeout; /* representation of the timeout */ + + PRIntn event; /* flags for select()'s events */ + + /* + ** The representation and notification of the results of the operation. + ** These function can either return an int return code or a pointer to + ** some object. + */ + union { PRIntn code; void *object; } result; + + PRIntn syserrno; /* in case it failed, why (errno) */ + pr_ContuationStatus status; /* the status of the operation */ + PRCondVar *complete; /* to notify the initiating thread */ +}; + +static struct pt_TimedQueue +{ + PRLock *ml; /* a little protection */ + PRThread *thread; /* internal thread's identification */ + PRCondVar *new_op; /* new operation supplied */ + PRCondVar *finish_op; /* an existing operation finished */ + PRUintn op_count; /* number of operations in the list */ + pt_Continuation *head, *tail; /* head/tail of list of operations */ + + pt_Continuation *op; /* timed operation furthest in future */ + PRIntervalTime epoch; /* the epoch of 'timed' */ +} pt_tq; + +#if defined(DEBUG) +static struct pt_debug_s +{ + PRIntn predictionsFoiled; + PRIntn pollingListMax; + PRIntn continuationsServed; +} pt_debug; +#endif /* DEBUG */ + +static void ContinuationThread(void *arg); +static PRInt32 pt_SendTo( + SOCKET osfd, const void *buf, + PRInt32 amount, PRInt32 flags, const PRNetAddr *addr, + PRIntn addrlen, PRIntervalTime timeout); +static PRInt32 pt_RecvFrom(SOCKET osfd, void *buf, PRInt32 amount, + PRInt32 flags, PRNetAddr *addr, PRIntn *addr_len, PRIntervalTime timeout); + + +/* The key returned from GetQueuedCompletionStatus() is used to determine what + * type of completion we have. We differentiate between IO completions and + * CVAR completions. + */ +#define KEY_IO 0xaaaaaaaa +#define KEY_CVAR 0xbbbbbbbb + +PRInt32 +_PR_MD_PAUSE_CPU(PRIntervalTime ticks) +{ + int awoken = 0; + unsigned long bytes, key; + int rv; + LPOVERLAPPED olp; + _MDOverlapped *mdOlp; + PRUint32 timeout; + + if (_nt_idleCount > 0) { + PRThread *deadThread; + + _MD_LOCK(&_nt_idleLock); + while( !PR_CLIST_IS_EMPTY(&_nt_idleList) ) { + deadThread = _PR_THREAD_PTR(PR_LIST_HEAD(&_nt_idleList)); + PR_REMOVE_LINK(&deadThread->links); + + PR_ASSERT(deadThread->state == _PR_DEAD_STATE); + + /* XXXMB - cleanup to do here? */ + if ( !_PR_IS_NATIVE_THREAD(deadThread) ){ + /* Spinlock while user thread is still running. + * There is no way to use a condition variable here. The thread + * is dead, and we have to wait until we switch off the dead + * thread before we can kill the fiber completely. + */ + while ( deadThread->no_sched) + ; + + DeleteFiber(deadThread->md.fiber_id); + } + memset(deadThread, 0xa, sizeof(PRThread)); /* debugging */ + if (!deadThread->threadAllocatedOnStack) + PR_DELETE(deadThread); + _nt_idleCount--; + } + _MD_UNLOCK(&_nt_idleLock); + } + + if (ticks == PR_INTERVAL_NO_TIMEOUT) +#if 0 + timeout = INFINITE; +#else + /* + * temporary hack to poll the runq every 5 seconds because of bug in + * native threads creating user threads and not poking the right cpu. + * + * A local thread that was interrupted is bound to its current + * cpu but there is no easy way for the interrupter to poke the + * right cpu. This is a hack to poll the runq every 5 seconds. + */ + timeout = 5000; +#endif + else + timeout = PR_IntervalToMilliseconds(ticks); + + /* + * The idea of looping here is to complete as many IOs as possible before + * returning. This should minimize trips to the idle thread. + */ + while(1) { + rv = GetQueuedCompletionStatus( + _pr_completion_port, + &bytes, + &key, + &olp, + timeout); + if (rv == 0 && olp == NULL) { + /* Error in GetQueuedCompetionStatus */ + if (GetLastError() != WAIT_TIMEOUT) { + /* ARGH - what can we do here? Log an error? XXXMB */ + return -1; + } else { + /* If awoken == 0, then we just had a timeout */ + return awoken; + } + } + + if (olp == NULL) + return 0; + + mdOlp = (_MDOverlapped *)olp; + + if (mdOlp->ioModel == _MD_MultiWaitIO) { + PRRecvWait *desc; + PRWaitGroup *group; + PRThread *thred = NULL; + PRMWStatus mwstatus; + + desc = mdOlp->data.mw.desc; + PR_ASSERT(desc != NULL); + mwstatus = rv ? PR_MW_SUCCESS : PR_MW_FAILURE; + if (InterlockedCompareExchange((PVOID *)&desc->outcome, + (PVOID)mwstatus, (PVOID)PR_MW_PENDING) + == (PVOID)PR_MW_PENDING) { + if (mwstatus == PR_MW_SUCCESS) { + desc->bytesRecv = bytes; + } else { + mdOlp->data.mw.error = GetLastError(); + } + } + group = mdOlp->data.mw.group; + PR_ASSERT(group != NULL); + + _PR_MD_LOCK(&group->mdlock); + PR_APPEND_LINK(&mdOlp->data.mw.links, &group->io_ready); + PR_ASSERT(desc->fd != NULL); + NT_HashRemoveInternal(group, desc->fd); + if (!PR_CLIST_IS_EMPTY(&group->wait_list)) { + thred = _PR_THREAD_CONDQ_PTR(PR_LIST_HEAD(&group->wait_list)); + PR_REMOVE_LINK(&thred->waitQLinks); + } + _PR_MD_UNLOCK(&group->mdlock); + + if (thred) { + if (!_PR_IS_NATIVE_THREAD(thred)) { + int pri = thred->priority; + _PRCPU *lockedCPU = _PR_MD_CURRENT_CPU(); + _PR_THREAD_LOCK(thred); + if (thred->flags & _PR_ON_PAUSEQ) { + _PR_SLEEPQ_LOCK(thred->cpu); + _PR_DEL_SLEEPQ(thred, PR_TRUE); + _PR_SLEEPQ_UNLOCK(thred->cpu); + _PR_THREAD_UNLOCK(thred); + thred->cpu = lockedCPU; + thred->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(lockedCPU); + _PR_ADD_RUNQ(thred, lockedCPU, pri); + _PR_RUNQ_UNLOCK(lockedCPU); + } else { + /* + * The thread was just interrupted and moved + * from the pause queue to the run queue. + */ + _PR_THREAD_UNLOCK(thred); + } + } else { + _PR_THREAD_LOCK(thred); + thred->state = _PR_RUNNABLE; + _PR_THREAD_UNLOCK(thred); + ReleaseSemaphore(thred->md.blocked_sema, 1, NULL); + } + } + } else { + PRThread *completed_io; + + PR_ASSERT(mdOlp->ioModel == _MD_BlockingIO); + completed_io = _PR_THREAD_MD_TO_PTR(mdOlp->data.mdThread); + completed_io->md.blocked_io_status = rv; + if (rv == 0) + completed_io->md.blocked_io_error = GetLastError(); + completed_io->md.blocked_io_bytes = bytes; + + if ( !_PR_IS_NATIVE_THREAD(completed_io) ) { + int pri = completed_io->priority; + _PRCPU *lockedCPU = _PR_MD_CURRENT_CPU(); + + /* The KEY_CVAR notification only occurs when a native thread + * is notifying a user thread. For user-user notifications + * the wakeup occurs by having the notifier place the thread + * on the runq directly; for native-native notifications the + * wakeup occurs by calling ReleaseSemaphore. + */ + if ( key == KEY_CVAR ) { + PR_ASSERT(completed_io->io_pending == PR_FALSE); + PR_ASSERT(completed_io->io_suspended == PR_FALSE); + PR_ASSERT(completed_io->md.thr_bound_cpu == NULL); + + /* Thread has already been deleted from sleepQ */ + + /* Switch CPU and add to runQ */ + completed_io->cpu = lockedCPU; + completed_io->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(lockedCPU); + _PR_ADD_RUNQ(completed_io, lockedCPU, pri); + _PR_RUNQ_UNLOCK(lockedCPU); + } else { + PR_ASSERT(key == KEY_IO); + PR_ASSERT(completed_io->io_pending == PR_TRUE); + + _PR_THREAD_LOCK(completed_io); + + completed_io->io_pending = PR_FALSE; + + /* If io_suspended is true, then this IO has already resumed. + * We don't need to do anything; because the thread is + * already running. + */ + if (completed_io->io_suspended == PR_FALSE) { + if (completed_io->flags & (_PR_ON_SLEEPQ|_PR_ON_PAUSEQ)) { + _PR_SLEEPQ_LOCK(completed_io->cpu); + _PR_DEL_SLEEPQ(completed_io, PR_TRUE); + _PR_SLEEPQ_UNLOCK(completed_io->cpu); + + _PR_THREAD_UNLOCK(completed_io); + + /* + * If an I/O operation is suspended, the thread + * must be running on the same cpu on which the + * I/O operation was issued. + */ + PR_ASSERT(!completed_io->md.thr_bound_cpu || + (completed_io->cpu == completed_io->md.thr_bound_cpu)); + + if (!completed_io->md.thr_bound_cpu) + completed_io->cpu = lockedCPU; + completed_io->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(completed_io->cpu); + _PR_ADD_RUNQ(completed_io, completed_io->cpu, pri); + _PR_RUNQ_UNLOCK(completed_io->cpu); + } else { + _PR_THREAD_UNLOCK(completed_io); + } + } else { + _PR_THREAD_UNLOCK(completed_io); + } + } + } else { + /* For native threads, they are only notified through this loop + * when completing IO. So, don't worry about this being a CVAR + * notification, because that is not possible. + */ + _PR_THREAD_LOCK(completed_io); + completed_io->io_pending = PR_FALSE; + if (completed_io->io_suspended == PR_FALSE) { + completed_io->state = _PR_RUNNABLE; + _PR_THREAD_UNLOCK(completed_io); + rv = ReleaseSemaphore(completed_io->md.blocked_sema, + 1, NULL); + PR_ASSERT(0 != rv); + } else { + _PR_THREAD_UNLOCK(completed_io); + } + } + } + + awoken++; + timeout = 0; /* Don't block on subsequent trips through the loop */ + } + + /* never reached */ + return 0; +} + +static PRStatus +_native_thread_md_wait(PRThread *thread, PRIntervalTime ticks) +{ + DWORD rv; + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(ticks); + + /* + * thread waiting for a cvar or a joining thread + */ + rv = WaitForSingleObject(thread->md.blocked_sema, msecs); + switch(rv) { + case WAIT_OBJECT_0: + return PR_SUCCESS; + break; + case WAIT_TIMEOUT: + _PR_THREAD_LOCK(thread); + PR_ASSERT (thread->state != _PR_IO_WAIT); + if (thread->wait.cvar != NULL) { + PR_ASSERT(thread->state == _PR_COND_WAIT); + thread->wait.cvar = NULL; + thread->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(thread); + } else { + /* The CVAR was notified just as the timeout + * occurred. This left the semaphore in the + * signaled state. Call WaitForSingleObject() + * to clear the semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + return PR_SUCCESS; + break; + default: + return PR_FAILURE; + break; + } + + return PR_SUCCESS; +} + +PRStatus +_PR_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + DWORD rv; + + if (_native_threads_only) { + return(_native_thread_md_wait(thread, ticks)); + } + if ( thread->flags & _PR_GLOBAL_SCOPE ) { + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(ticks); + rv = WaitForSingleObject(thread->md.blocked_sema, msecs); + switch(rv) { + case WAIT_OBJECT_0: + return PR_SUCCESS; + break; + case WAIT_TIMEOUT: + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + if (thread->io_pending == PR_TRUE) { + thread->state = _PR_RUNNING; + thread->io_suspended = PR_TRUE; + _PR_THREAD_UNLOCK(thread); + } else { + /* The IO completed just at the same time the timeout + * occurred. This left the semaphore in the signaled + * state. Call WaitForSingleObject() to clear the + * semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + } else { + if (thread->wait.cvar != NULL) { + PR_ASSERT(thread->state == _PR_COND_WAIT); + thread->wait.cvar = NULL; + thread->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(thread); + } else { + /* The CVAR was notified just as the timeout + * occurred. This left the semaphore in the + * signaled state. Call WaitForSingleObject() + * to clear the semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + } + return PR_SUCCESS; + break; + default: + return PR_FAILURE; + break; + } + } else { + PRInt32 is; + + _PR_INTSOFF(is); + _PR_MD_SWITCH_CONTEXT(thread); + } + + return PR_SUCCESS; +} + +static void +_native_thread_io_nowait( + PRThread *thread, + int rv, + int bytes) +{ + int rc; + + PR_ASSERT(rv != 0); + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + PR_ASSERT(thread->io_suspended == PR_FALSE); + PR_ASSERT(thread->io_pending == PR_TRUE); + thread->state = _PR_RUNNING; + thread->io_pending = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + } else { + /* The IO completed just at the same time the + * thread was interrupted. This left the semaphore + * in the signaled state. Call WaitForSingleObject() + * to clear the semaphore. + */ + PR_ASSERT(thread->io_suspended == PR_TRUE); + PR_ASSERT(thread->io_pending == PR_TRUE); + thread->io_pending = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + rc = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rc == WAIT_OBJECT_0); + } + + thread->md.blocked_io_status = rv; + thread->md.blocked_io_bytes = bytes; + rc = ResetEvent(thread->md.thr_event); + PR_ASSERT(rc != 0); + return; +} + +static PRStatus +_native_thread_io_wait(PRThread *thread, PRIntervalTime ticks) +{ + DWORD rv, bytes; +#define _NATIVE_IO_WAIT_HANDLES 2 +#define _NATIVE_WAKEUP_EVENT_INDEX 0 +#define _NATIVE_IO_EVENT_INDEX 1 + + HANDLE wait_handles[_NATIVE_IO_WAIT_HANDLES]; + + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(ticks); + + PR_ASSERT(thread->flags & _PR_GLOBAL_SCOPE); + + wait_handles[0] = thread->md.blocked_sema; + wait_handles[1] = thread->md.thr_event; + rv = WaitForMultipleObjects(_NATIVE_IO_WAIT_HANDLES, wait_handles, + FALSE, msecs); + + switch(rv) { + case WAIT_OBJECT_0 + _NATIVE_IO_EVENT_INDEX: + /* + * I/O op completed + */ + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + + PR_ASSERT(thread->io_suspended == PR_FALSE); + PR_ASSERT(thread->io_pending == PR_TRUE); + thread->state = _PR_RUNNING; + thread->io_pending = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + } else { + /* The IO completed just at the same time the + * thread was interrupted. This led to us being + * notified twice. Call WaitForSingleObject() + * to clear the semaphore. + */ + PR_ASSERT(thread->io_suspended == PR_TRUE); + PR_ASSERT(thread->io_pending == PR_TRUE); + thread->io_pending = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, + INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + + rv = GetOverlappedResult((HANDLE) thread->io_fd, + &thread->md.overlapped.overlapped, &bytes, FALSE); + + thread->md.blocked_io_status = rv; + if (rv != 0) { + thread->md.blocked_io_bytes = bytes; + } else { + thread->md.blocked_io_error = GetLastError(); + PR_ASSERT(ERROR_IO_PENDING != thread->md.blocked_io_error); + } + rv = ResetEvent(thread->md.thr_event); + PR_ASSERT(rv != 0); + break; + case WAIT_OBJECT_0 + _NATIVE_WAKEUP_EVENT_INDEX: + /* + * I/O interrupted; + */ +#ifdef DEBUG + _PR_THREAD_LOCK(thread); + PR_ASSERT(thread->io_suspended == PR_TRUE); + _PR_THREAD_UNLOCK(thread); +#endif + break; + case WAIT_TIMEOUT: + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + thread->state = _PR_RUNNING; + thread->io_suspended = PR_TRUE; + _PR_THREAD_UNLOCK(thread); + } else { + /* + * The thread was interrupted just as the timeout + * occurred. This left the semaphore in the signaled + * state. Call WaitForSingleObject() to clear the + * semaphore. + */ + PR_ASSERT(thread->io_suspended == PR_TRUE); + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + break; + default: + return PR_FAILURE; + break; + } + + return PR_SUCCESS; +} + + +static PRStatus +_NT_IO_WAIT(PRThread *thread, PRIntervalTime timeout) +{ + PRBool fWait = PR_TRUE; + + if (_native_threads_only) { + return(_native_thread_io_wait(thread, timeout)); + } + if (!_PR_IS_NATIVE_THREAD(thread)) { + + _PR_THREAD_LOCK(thread); + + /* The IO may have already completed; if so, don't add to sleepQ, + * since we are already on the runQ! + */ + if (thread->io_pending == PR_TRUE) { + _PR_SLEEPQ_LOCK(thread->cpu); + _PR_ADD_SLEEPQ(thread, timeout); + _PR_SLEEPQ_UNLOCK(thread->cpu); + } else + fWait = PR_FALSE; + _PR_THREAD_UNLOCK(thread); + } + if (fWait) + return _PR_MD_WAIT(thread, timeout); + else + return PR_SUCCESS; +} + +/* + * Unblock threads waiting for I/O + * used when interrupting threads + * + * NOTE: The thread lock should held when this function is called. + * On return, the thread lock is released. + */ +void _PR_Unblock_IO_Wait(PRThread *thr) +{ + PRStatus rv; + _PRCPU *cpu = thr->cpu; + + PR_ASSERT(thr->state == _PR_IO_WAIT); + /* + * A thread for which an I/O timed out or was interrupted cannot be + * in an IO_WAIT state except as a result of calling PR_Close or + * PR_NT_CancelIo for the FD. For these two cases, _PR_IO_WAIT state + * is not interruptible + */ + if (thr->md.interrupt_disabled == PR_TRUE) { + _PR_THREAD_UNLOCK(thr); + return; + } + thr->io_suspended = PR_TRUE; + thr->state = _PR_RUNNABLE; + + if (!_PR_IS_NATIVE_THREAD(thr)) { + PRThread *me = _PR_MD_CURRENT_THREAD(); + PR_ASSERT(thr->flags & (_PR_ON_SLEEPQ | _PR_ON_PAUSEQ)); + _PR_SLEEPQ_LOCK(cpu); + _PR_DEL_SLEEPQ(thr, PR_TRUE); + _PR_SLEEPQ_UNLOCK(cpu); + /* + * this thread will continue to run on the same cpu until the + * I/O is aborted by closing the FD or calling CancelIO + */ + thr->md.thr_bound_cpu = cpu; + + PR_ASSERT(!(thr->flags & _PR_IDLE_THREAD)); + _PR_AddThreadToRunQ(me, thr); + } + _PR_THREAD_UNLOCK(thr); + rv = _PR_MD_WAKEUP_WAITER(thr); + PR_ASSERT(PR_SUCCESS == rv); +} + +/* Resume an outstanding IO; requires that after the switch, we disable */ +static PRStatus +_NT_ResumeIO(PRThread *thread, PRIntervalTime ticks) +{ + PRBool fWait = PR_TRUE; + + if (!_PR_IS_NATIVE_THREAD(thread)) { + if (_pr_use_static_tls) { + _pr_io_restarted_io = thread; + } else { + TlsSetValue(_pr_io_restartedIOIndex, thread); + } + } else { + _PR_THREAD_LOCK(thread); + if (!thread->io_pending) + fWait = PR_FALSE; + thread->io_suspended = PR_FALSE; + + _PR_THREAD_UNLOCK(thread); + } + /* We don't put ourselves back on the sleepQ yet; until we + * set the suspended bit to false, we can't do that. Just save + * the sleep time here, and then continue. The restarted_io handler + * will add us to the sleepQ if needed. + */ + thread->sleep = ticks; + + if (fWait) { + if (!_PR_IS_NATIVE_THREAD(thread)) + return _PR_MD_WAIT(thread, ticks); + else + return _NT_IO_WAIT(thread, ticks); + } + return PR_SUCCESS; +} + +PRStatus +_PR_MD_WAKEUP_WAITER(PRThread *thread) +{ + if (thread == NULL) { + /* If thread is NULL, we aren't waking a thread, we're just poking + * idle thread + */ + if ( PostQueuedCompletionStatus(_pr_completion_port, 0, + KEY_CVAR, NULL) == FALSE) + return PR_FAILURE; + return PR_SUCCESS; + } + + if ( _PR_IS_NATIVE_THREAD(thread) ) { + if (ReleaseSemaphore(thread->md.blocked_sema, 1, NULL) == FALSE) + return PR_FAILURE; + else + return PR_SUCCESS; + } else { + PRThread *me = _PR_MD_CURRENT_THREAD(); + + /* When a Native thread has to awaken a user thread, it has to poke + * the completion port because all user threads might be idle, and + * thus the CPUs are just waiting for a completion. + * + * XXXMB - can we know when we are truely idle (and not checking + * the runq)? + */ + if ((_PR_IS_NATIVE_THREAD(me) || (thread->cpu != me->cpu)) && + (!thread->md.thr_bound_cpu)) { + /* The thread should not be in any queue */ + PR_ASSERT(thread->queueCount == 0); + if ( PostQueuedCompletionStatus(_pr_completion_port, 0, + KEY_CVAR, &(thread->md.overlapped.overlapped)) == FALSE) + return PR_FAILURE; + } + return PR_SUCCESS; + } +} + +void +_PR_MD_INIT_IO() +{ + WORD WSAVersion = 0x0101; + WSADATA WSAData; + int err; + OSVERSIONINFO OSversion; + + err = WSAStartup( WSAVersion, &WSAData ); + PR_ASSERT(0 == err); + + _pr_completion_port = CreateIoCompletionPort(INVALID_HANDLE_VALUE, + NULL, + 0, + 0); + + _MD_NEW_LOCK(&_pr_recycle_lock); + _MD_NEW_LOCK(&_pr_ioq_lock); + + OSversion.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + if (GetVersionEx(&OSversion)) { + _nt_version_gets_lockfile_completion = PR_FALSE; + if (OSversion.dwMajorVersion >= 4) { + _nt_version_gets_lockfile_completion = PR_TRUE; + } + } else + PR_ASSERT(0); + +#ifdef _NEED_351_FILE_LOCKING_HACK + IsFileLocalInit(); +#endif /* _NEED_351_FILE_LOCKING_HACK */ + + /* + * UDP support: start up the continuation thread + */ + + pt_tq.op_count = 0; + pt_tq.head = pt_tq.tail = NULL; + pt_tq.ml = PR_NewLock(); + PR_ASSERT(NULL != pt_tq.ml); + pt_tq.new_op = PR_NewCondVar(pt_tq.ml); + PR_ASSERT(NULL != pt_tq.new_op); +#if defined(DEBUG) + memset(&pt_debug, 0, sizeof(struct pt_debug_s)); +#endif + + pt_tq.thread = PR_CreateThread( + PR_SYSTEM_THREAD, ContinuationThread, NULL, + PR_PRIORITY_URGENT, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); + + PR_ASSERT(NULL != pt_tq.thread); + +#ifdef DEBUG + /* Doublecheck _pr_filetime_offset's hard-coded value is correct. */ + { + SYSTEMTIME systime; + union { + PRTime prt; + FILETIME ft; + } filetime; + BOOL rv; + + systime.wYear = 1970; + systime.wMonth = 1; + /* wDayOfWeek is ignored */ + systime.wDay = 1; + systime.wHour = 0; + systime.wMinute = 0; + systime.wSecond = 0; + systime.wMilliseconds = 0; + + rv = SystemTimeToFileTime(&systime, &filetime.ft); + PR_ASSERT(0 != rv); + PR_ASSERT(filetime.prt == _pr_filetime_offset); + } +#endif /* DEBUG */ + + _PR_NT_InitSids(); +} + +/* --- SOCKET IO --------------------------------------------------------- */ + +/* _md_get_recycled_socket() + * Get a socket from the recycle bin; if no sockets are in the bin, + * create one. The socket will be passed to AcceptEx() as the + * second argument. + */ +static SOCKET +_md_get_recycled_socket(int af) +{ + SOCKET rv; + + _MD_LOCK(&_pr_recycle_lock); + if (af == AF_INET && _pr_recycle_INET_tail) { + _pr_recycle_INET_tail--; + rv = _pr_recycle_INET_array[_pr_recycle_INET_tail]; + _MD_UNLOCK(&_pr_recycle_lock); + return rv; + } + if (af == AF_INET6 && _pr_recycle_INET6_tail) { + _pr_recycle_INET6_tail--; + rv = _pr_recycle_INET6_array[_pr_recycle_INET6_tail]; + _MD_UNLOCK(&_pr_recycle_lock); + return rv; + } + _MD_UNLOCK(&_pr_recycle_lock); + + rv = _PR_MD_SOCKET(af, SOCK_STREAM, 0); + if (rv != INVALID_SOCKET && _md_Associate((HANDLE)rv) == 0) { + closesocket(rv); + return INVALID_SOCKET; + } + return rv; +} + +/* _md_put_recycled_socket() + * Add a socket to the recycle bin. + */ +static void +_md_put_recycled_socket(SOCKET newsock, int af) +{ + PR_ASSERT(_pr_recycle_INET_tail >= 0); + PR_ASSERT(_pr_recycle_INET6_tail >= 0); + + _MD_LOCK(&_pr_recycle_lock); + if (af == AF_INET && _pr_recycle_INET_tail < RECYCLE_SIZE) { + _pr_recycle_INET_array[_pr_recycle_INET_tail] = newsock; + _pr_recycle_INET_tail++; + _MD_UNLOCK(&_pr_recycle_lock); + } else if (af == AF_INET6 && _pr_recycle_INET6_tail < RECYCLE_SIZE) { + _pr_recycle_INET6_array[_pr_recycle_INET6_tail] = newsock; + _pr_recycle_INET6_tail++; + _MD_UNLOCK(&_pr_recycle_lock); + } else { + _MD_UNLOCK(&_pr_recycle_lock); + closesocket(newsock); + } + + return; +} + +/* _md_Associate() + * Associates a file with the completion port. + * Returns 0 on failure, 1 on success. + */ +PRInt32 +_md_Associate(HANDLE file) +{ + HANDLE port; + + if (!_native_threads_only) { + port = CreateIoCompletionPort((HANDLE)file, + _pr_completion_port, + KEY_IO, + 0); + + /* XXX should map error codes on failures */ + return (port == _pr_completion_port); + } else { + return 1; + } +} + +/* + * _md_MakeNonblock() + * Make a socket nonblocking. + * Returns 0 on failure, 1 on success. + */ +static PRInt32 +_md_MakeNonblock(HANDLE file) +{ + int rv; + u_long one = 1; + + rv = ioctlsocket((SOCKET)file, FIONBIO, &one); + /* XXX should map error codes on failures */ + return (rv == 0); +} + +static int missing_completions = 0; +static int max_wait_loops = 0; + +static PRInt32 +_NT_IO_ABORT(PROsfd sock) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRBool fWait; + PRInt32 rv; + int loop_count; + + /* This is a clumsy way to abort the IO, but it is all we can do. + * It looks a bit racy, but we handle all the cases. + * case 1: IO completes before calling closesocket + * case 1a: fWait is set to PR_FALSE + * This should e the most likely case. We'll properly + * not wait call _NT_IO_WAIT, since the closesocket() + * won't be forcing a completion. + * case 1b: fWait is set to PR_TRUE + * This hopefully won't happen much. When it does, this + * thread will timeout in _NT_IO_WAIT for CLOSE_INTERVAL + * before cleaning up. + * case 2: IO does not complete before calling closesocket + * case 2a: IO never completes + * This is the likely case. We'll close it and wait + * for the completion forced by the close. Return should + * be immediate. + * case 2b: IO completes just after calling closesocket + * Since the closesocket is issued, we'll either get a + * completion back for the real IO or for the close. We + * don't really care. It may not even be possible to get + * a real completion here. In any event, we'll awaken + * from NT_IO_WAIT immediately. + */ + + _PR_THREAD_LOCK(me); + fWait = me->io_pending; + if (fWait) { + /* + * If there's still I/O pending, it should have already timed + * out once before this function is called. + */ + PR_ASSERT(me->io_suspended == PR_TRUE); + + /* Set up to wait for I/O completion again */ + me->state = _PR_IO_WAIT; + me->io_suspended = PR_FALSE; + me->md.interrupt_disabled = PR_TRUE; + } + _PR_THREAD_UNLOCK(me); + + /* Close the socket if there is one */ + if (sock != INVALID_SOCKET) { + rv = closesocket((SOCKET)sock); + } + + /* If there was I/O pending before the close, wait for it to complete */ + if (fWait) { + + /* Wait and wait for the I/O to complete */ + for (loop_count = 0; fWait; ++loop_count) { + + _NT_IO_WAIT(me, CLOSE_TIMEOUT); + + _PR_THREAD_LOCK(me); + fWait = me->io_pending; + if (fWait) { + PR_ASSERT(me->io_suspended == PR_TRUE); + me->state = _PR_IO_WAIT; + me->io_suspended = PR_FALSE; + } + _PR_THREAD_UNLOCK(me); + + if (loop_count > max_wait_loops) { + max_wait_loops = loop_count; + } + } + + if (loop_count > 1) { + ++missing_completions; + } + + me->md.interrupt_disabled = PR_FALSE; + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + } + + PR_ASSERT(me->io_pending == PR_FALSE); + me->md.thr_bound_cpu = NULL; + me->io_suspended = PR_FALSE; + + return rv; +} + + +PROsfd +_PR_MD_SOCKET(int af, int type, int flags) +{ + SOCKET sock; + + sock = socket(af, type, flags); + + if (sock == INVALID_SOCKET) { + _PR_MD_MAP_SOCKET_ERROR(WSAGetLastError()); + } + + return (PROsfd)sock; +} + +struct connect_data_s { + PRInt32 status; + PRInt32 error; + PROsfd osfd; + struct sockaddr *addr; + PRUint32 addrlen; + PRIntervalTime timeout; +}; + +void +_PR_MD_connect_thread(void *cdata) +{ + struct connect_data_s *cd = (struct connect_data_s *)cdata; + + cd->status = connect(cd->osfd, cd->addr, cd->addrlen); + + if (cd->status == SOCKET_ERROR) + cd->error = WSAGetLastError(); + + return; +} + + +PRInt32 +_PR_MD_CONNECT(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + u_long nbio; + PRInt32 rc; + + if (fd->secret->nonblocking) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + + if ((rv = connect(osfd, (struct sockaddr *) addr, addrlen)) == -1) { + err = WSAGetLastError(); + _PR_MD_MAP_CONNECT_ERROR(err); + } + return rv; + } + + /* + * Temporarily make the socket non-blocking so that we can + * initiate a non-blocking connect and wait for its completion + * (with a timeout) in select. + */ + PR_ASSERT(!fd->secret->md.io_model_committed); + nbio = 1; + rv = ioctlsocket((SOCKET)osfd, FIONBIO, &nbio); + PR_ASSERT(0 == rv); + + rc = _nt_nonblock_connect(fd, (struct sockaddr *) addr, addrlen, timeout); + + /* Set the socket back to blocking. */ + nbio = 0; + rv = ioctlsocket((SOCKET)osfd, FIONBIO, &nbio); + PR_ASSERT(0 == rv); + + return rc; +} + +PRInt32 +_PR_MD_BIND(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen) +{ + PRInt32 rv; +#if 0 + int one = 1; +#endif + + rv = bind(fd->secret->md.osfd, (const struct sockaddr *)&(addr->inet), addrlen); + + if (rv == SOCKET_ERROR) { + _PR_MD_MAP_BIND_ERROR(WSAGetLastError()); + return -1; + } + +#if 0 + /* Disable nagle- so far unknown if this is good or not... + */ + rv = setsockopt(fd->secret->md.osfd, + SOL_SOCKET, + TCP_NODELAY, + (const char *)&one, + sizeof(one)); + PR_ASSERT(rv == 0); +#endif + + return 0; +} + +void _PR_MD_UPDATE_ACCEPT_CONTEXT(PROsfd accept_sock, PROsfd listen_sock) +{ + /* Sockets accept()'d with AcceptEx need to call this setsockopt before + * calling anything other than ReadFile(), WriteFile(), send(), recv(), + * Transmitfile(), and closesocket(). In order to call any other + * winsock functions, we have to make this setsockopt call. + * + * XXXMB - For the server, we *NEVER* need this in + * the "normal" code path. But now we have to call it. This is a waste + * of a system call. We'd like to only call it before calling the + * obscure socket calls, but since we don't know at that point what the + * original socket was (or even if it is still alive) we can't do it + * at that point... + */ + setsockopt((SOCKET)accept_sock, + SOL_SOCKET, + SO_UPDATE_ACCEPT_CONTEXT, + (char *)&listen_sock, + sizeof(listen_sock)); + +} + +#define INET_ADDR_PADDED (sizeof(PRNetAddr) + 16) +PROsfd +_PR_MD_FAST_ACCEPT(PRFileDesc *fd, PRNetAddr *raddr, PRUint32 *rlen, + PRIntervalTime timeout, PRBool fast, + _PR_AcceptTimeoutCallback callback, void *callbackArg) +{ + PROsfd osfd = fd->secret->md.osfd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + SOCKET accept_sock; + int bytes; + PRNetAddr *Laddr; + PRNetAddr *Raddr; + PRUint32 llen, err; + int rv; + + if (_NT_USE_NB_IO(fd)) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + /* + * The accepted socket inherits the nonblocking and + * inheritable (HANDLE_FLAG_INHERIT) attributes of + * the listening socket. + */ + accept_sock = _nt_nonblock_accept(fd, (struct sockaddr *)raddr, rlen, timeout); + if (!fd->secret->nonblocking) { + u_long zero = 0; + + rv = ioctlsocket(accept_sock, FIONBIO, &zero); + PR_ASSERT(0 == rv); + } + return accept_sock; + } + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + + if (!me->md.acceptex_buf) { + me->md.acceptex_buf = PR_MALLOC(2*INET_ADDR_PADDED); + if (!me->md.acceptex_buf) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return -1; + } + } + + accept_sock = _md_get_recycled_socket(fd->secret->af); + if (accept_sock == INVALID_SOCKET) + return -1; + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + if (_native_threads_only) + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + closesocket(accept_sock); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = osfd; + + rv = AcceptEx((SOCKET)osfd, + accept_sock, + me->md.acceptex_buf, + 0, + INET_ADDR_PADDED, + INET_ADDR_PADDED, + &bytes, + &(me->md.overlapped.overlapped)); + + if ( (rv == 0) && ((err = WSAGetLastError()) != ERROR_IO_PENDING)) { + /* Argh! The IO failed */ + closesocket(accept_sock); + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_ACCEPTEX_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + closesocket(accept_sock); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + closesocket(accept_sock); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + closesocket(accept_sock); + _PR_MD_MAP_ACCEPTEX_ERROR(me->md.blocked_io_error); + return -1; + } + + if (!fast) + _PR_MD_UPDATE_ACCEPT_CONTEXT((SOCKET)accept_sock, (SOCKET)osfd); + + /* IO is done */ + GetAcceptExSockaddrs( + me->md.acceptex_buf, + 0, + INET_ADDR_PADDED, + INET_ADDR_PADDED, + (LPSOCKADDR *)&(Laddr), + &llen, + (LPSOCKADDR *)&(Raddr), + (unsigned int *)rlen); + + if (raddr != NULL) + memcpy((char *)raddr, (char *)&Raddr->inet, *rlen); + + PR_ASSERT(me->io_pending == PR_FALSE); + + return accept_sock; +} + +PRInt32 +_PR_MD_FAST_ACCEPT_READ(PRFileDesc *sd, PROsfd *newSock, PRNetAddr **raddr, + void *buf, PRInt32 amount, PRIntervalTime timeout, + PRBool fast, _PR_AcceptTimeoutCallback callback, + void *callbackArg) +{ + PROsfd sock = sd->secret->md.osfd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + int bytes; + PRNetAddr *Laddr; + PRUint32 llen, rlen, err; + int rv; + PRBool isConnected; + PRBool madeCallback = PR_FALSE; + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!sd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)sock); + PR_ASSERT(0 != rv); + sd->secret->md.io_model_committed = PR_TRUE; + } + + *newSock = _md_get_recycled_socket(sd->secret->af); + if (*newSock == INVALID_SOCKET) + return -1; + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + if (_native_threads_only) + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + closesocket(*newSock); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = sock; + + rv = AcceptEx((SOCKET)sock, + *newSock, + buf, + amount, + INET_ADDR_PADDED, + INET_ADDR_PADDED, + &bytes, + &(me->md.overlapped.overlapped)); + + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING)) { + closesocket(*newSock); + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_ACCEPTEX_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + closesocket(*newSock); + return -1; + } + +retry: + if (me->io_suspended) { + PRInt32 err; + INT seconds; + INT bytes = sizeof(seconds); + + PR_ASSERT(timeout != PR_INTERVAL_NO_TIMEOUT); + + err = getsockopt(*newSock, + SOL_SOCKET, + SO_CONNECT_TIME, + (char *)&seconds, + (PINT)&bytes); + if ( err == NO_ERROR ) { + PRIntervalTime elapsed = PR_SecondsToInterval(seconds); + + if (seconds == 0xffffffff) + isConnected = PR_FALSE; + else + isConnected = PR_TRUE; + + if (!isConnected) { + if (madeCallback == PR_FALSE && callback) + callback(callbackArg); + madeCallback = PR_TRUE; + me->state = _PR_IO_WAIT; + if (_NT_ResumeIO(me, timeout) == PR_FAILURE) { + closesocket(*newSock); + return -1; + } + goto retry; + } + + if (elapsed < timeout) { + /* Socket is connected but time not elapsed, RESUME IO */ + timeout -= elapsed; + me->state = _PR_IO_WAIT; + if (_NT_ResumeIO(me, timeout) == PR_FAILURE) { + closesocket(*newSock); + return -1; + } + goto retry; + } + } else { + /* What to do here? Assume socket not open?*/ + PR_ASSERT(0); + isConnected = PR_FALSE; + } + + rv = _NT_IO_ABORT(*newSock); + + PR_ASSERT(me->io_pending == PR_FALSE); + PR_ASSERT(me->io_suspended == PR_FALSE); + PR_ASSERT(me->md.thr_bound_cpu == NULL); + /* If the IO is still suspended, it means we didn't get any + * completion from NT_IO_WAIT. This is not disasterous, I hope, + * but it may mean we still have an IO outstanding... Try to + * recover by just allowing ourselves to continue. + */ + me->io_suspended = PR_FALSE; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + me->state = _PR_RUNNING; + closesocket(*newSock); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE); + PR_ASSERT(me->io_suspended == PR_FALSE); + PR_ASSERT(me->md.thr_bound_cpu == NULL); + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_ACCEPTEX_ERROR(me->md.blocked_io_error); + closesocket(*newSock); + return -1; + } + + if (!fast) + _PR_MD_UPDATE_ACCEPT_CONTEXT((SOCKET)*newSock, (SOCKET)sock); + + /* IO is done */ + GetAcceptExSockaddrs( + buf, + amount, + INET_ADDR_PADDED, + INET_ADDR_PADDED, + (LPSOCKADDR *)&(Laddr), + &llen, + (LPSOCKADDR *)(raddr), + (unsigned int *)&rlen); + + return me->md.blocked_io_bytes; +} + +PRInt32 +_PR_MD_SENDFILE(PRFileDesc *sock, PRSendFileData *sfd, + PRInt32 flags, PRIntervalTime timeout) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRInt32 tflags; + int rv, err; + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!sock->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)sock->secret->md.osfd); + PR_ASSERT(0 != rv); + sock->secret->md.io_model_committed = PR_TRUE; + } + if (!me->md.xmit_bufs) { + me->md.xmit_bufs = PR_NEW(TRANSMIT_FILE_BUFFERS); + if (!me->md.xmit_bufs) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return -1; + } + } + me->md.xmit_bufs->Head = (void *)sfd->header; + me->md.xmit_bufs->HeadLength = sfd->hlen; + me->md.xmit_bufs->Tail = (void *)sfd->trailer; + me->md.xmit_bufs->TailLength = sfd->tlen; + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + me->md.overlapped.overlapped.Offset = sfd->file_offset; + if (_native_threads_only) + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + + tflags = 0; + if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) + tflags = TF_DISCONNECT | TF_REUSE_SOCKET; + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = sock->secret->md.osfd; + + rv = TransmitFile((SOCKET)sock->secret->md.osfd, + (HANDLE)sfd->fd->secret->md.osfd, + (DWORD)sfd->file_nbytes, + (DWORD)0, + (LPOVERLAPPED)&(me->md.overlapped.overlapped), + (TRANSMIT_FILE_BUFFERS *)me->md.xmit_bufs, + (DWORD)tflags); + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_TRANSMITFILE_ERROR(err); + return -1; + } + + if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_TRANSMITFILE_ERROR(me->md.blocked_io_error); + return -1; + } + + if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) { + _md_put_recycled_socket(sock->secret->md.osfd, sock->secret->af); + } + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; +} + +PRInt32 +_PR_MD_RECV(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + int bytes; + int rv, err; + + if (_NT_USE_NB_IO(fd)) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + return _nt_nonblock_recv(fd, buf, amount, flags, timeout); + } + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + if (_native_threads_only) + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = osfd; + + rv = ReadFile((HANDLE)osfd, + buf, + amount, + &bytes, + &(me->md.overlapped.overlapped)); + if ( (rv == 0) && (GetLastError() != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + if ((err = GetLastError()) == ERROR_HANDLE_EOF) + return 0; + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + if (me->md.blocked_io_error == ERROR_HANDLE_EOF) + return 0; + _PR_MD_MAP_READ_ERROR(me->md.blocked_io_error); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; +} + +PRInt32 +_PR_MD_SEND(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + int bytes; + int rv, err; + + if (_NT_USE_NB_IO(fd)) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + return _nt_nonblock_send(fd, (char *)buf, amount, timeout); + } + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + if (_native_threads_only) + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = osfd; + + rv = WriteFile((HANDLE)osfd, + buf, + amount, + &bytes, + &(me->md.overlapped.overlapped)); + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_WRITE_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, timeout) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_WRITE_ERROR(me->md.blocked_io_error); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; +} + +PRInt32 +_PR_MD_SENDTO(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + if (_NT_USE_NB_IO(fd)) + return _nt_nonblock_sendto(fd, buf, amount, (struct sockaddr *)addr, addrlen, timeout); + else + return pt_SendTo(osfd, buf, amount, flags, addr, addrlen, timeout); +} + +PRInt32 +_PR_MD_RECVFROM(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRNetAddr *addr, PRUint32 *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + if (_NT_USE_NB_IO(fd)) + return _nt_nonblock_recvfrom(fd, buf, amount, (struct sockaddr *)addr, addrlen, timeout); + else + return pt_RecvFrom(osfd, buf, amount, flags, addr, addrlen, timeout); +} + +/* XXXMB - for now this is a sockets call only */ +PRInt32 +_PR_MD_WRITEV(PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_size, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + int index; + int sent = 0; + int rv; + + if (_NT_USE_NB_IO(fd)) { + if (!fd->secret->md.io_model_committed) { + rv = _md_MakeNonblock((HANDLE)osfd); + PR_ASSERT(0 != rv); + fd->secret->md.io_model_committed = PR_TRUE; + } + return _nt_nonblock_writev(fd, iov, iov_size, timeout); + } + + for (index=0; index<iov_size; index++) { + rv = _PR_MD_SEND(fd, iov[index].iov_base, iov[index].iov_len, 0, + timeout); + if (rv > 0) + sent += rv; + if ( rv != iov[index].iov_len ) { + if (sent <= 0) + return -1; + return -1; + } + } + + return sent; +} + +PRInt32 +_PR_MD_LISTEN(PRFileDesc *fd, PRIntn backlog) +{ + PRInt32 rv; + + rv = listen(fd->secret->md.osfd, backlog); + if (rv < 0) + _PR_MD_MAP_LISTEN_ERROR(WSAGetLastError()); + return(rv); +} + +PRInt32 +_PR_MD_SHUTDOWN(PRFileDesc *fd, PRIntn how) +{ + PRInt32 rv; + + rv = shutdown(fd->secret->md.osfd, how); + if (rv < 0) + _PR_MD_MAP_SHUTDOWN_ERROR(WSAGetLastError()); + return(rv); +} + +PRStatus +_PR_MD_GETSOCKNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + rv = getsockname((SOCKET)fd->secret->md.osfd, (struct sockaddr *)addr, len); + if (rv==0) + return PR_SUCCESS; + else { + _PR_MD_MAP_GETSOCKNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_GETPEERNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + /* + * NT has a bug that, when invoked on a socket accepted by + * AcceptEx(), getpeername() returns an all-zero peer address. + * To work around this bug, we store the peer's address (returned + * by AcceptEx()) with the socket fd and use the cached peer + * address if the socket is an accepted socket. + */ + + if (fd->secret->md.accepted_socket) { + INT seconds; + INT bytes = sizeof(seconds); + + /* + * Determine if the socket is connected. + */ + + rv = getsockopt(fd->secret->md.osfd, + SOL_SOCKET, + SO_CONNECT_TIME, + (char *) &seconds, + (PINT) &bytes); + if (rv == NO_ERROR) { + if (seconds == 0xffffffff) { + PR_SetError(PR_NOT_CONNECTED_ERROR, 0); + return PR_FAILURE; + } + *len = PR_NETADDR_SIZE(&fd->secret->md.peer_addr); + memcpy(addr, &fd->secret->md.peer_addr, *len); + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } + } else { + rv = getpeername((SOCKET)fd->secret->md.osfd, + (struct sockaddr *) addr, len); + if (rv == 0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETPEERNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } + } +} + +PRStatus +_PR_MD_GETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, char* optval, PRInt32* optlen) +{ + PRInt32 rv; + + rv = getsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) + return PR_SUCCESS; + else { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_SETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, const char* optval, PRInt32 optlen) +{ + PRInt32 rv; + + rv = setsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) + return PR_SUCCESS; + else { + _PR_MD_MAP_SETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +/* --- FILE IO ----------------------------------------------------------- */ + +PROsfd +_PR_MD_OPEN(const char *name, PRIntn osflags, PRIntn mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + + if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH; + + if (osflags & PR_RDONLY || osflags & PR_RDWR) access |= GENERIC_READ; + if (osflags & PR_WRONLY || osflags & PR_RDWR) access |= GENERIC_WRITE; + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) + flags = CREATE_NEW; + else if (osflags & PR_CREATE_FILE) + flags = (0 != (osflags & PR_TRUNCATE)) ? CREATE_ALWAYS : OPEN_ALWAYS; + else if (osflags & PR_TRUNCATE) flags = TRUNCATE_EXISTING; + else flags = OPEN_EXISTING; + + + flag6 |= FILE_FLAG_OVERLAPPED; + + file = CreateFile(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + NULL, + flags, + flag6, + NULL); + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + if (osflags & PR_APPEND) { + if ( SetFilePointer(file, 0, 0, FILE_END) == 0xFFFFFFFF ) { + _PR_MD_MAP_LSEEK_ERROR(GetLastError()); + CloseHandle(file); + return -1; + } + } + + return (PROsfd)file; +} + +PROsfd +_PR_MD_OPEN_FILE(const char *name, PRIntn osflags, PRIntn mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH; + + if (osflags & PR_RDONLY || osflags & PR_RDWR) access |= GENERIC_READ; + if (osflags & PR_WRONLY || osflags & PR_RDWR) access |= GENERIC_WRITE; + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) + flags = CREATE_NEW; + else if (osflags & PR_CREATE_FILE) + flags = (0 != (osflags & PR_TRUNCATE)) ? CREATE_ALWAYS : OPEN_ALWAYS; + else if (osflags & PR_TRUNCATE) flags = TRUNCATE_EXISTING; + else flags = OPEN_EXISTING; + + + flag6 |= FILE_FLAG_OVERLAPPED; + + if (osflags & PR_CREATE_FILE) { + if (_PR_NT_MakeSecurityDescriptorACL(mode, fileAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + } + file = CreateFile(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + lpSA, + flags, + flag6, + NULL); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + if (osflags & PR_APPEND) { + if ( SetFilePointer(file, 0, 0, FILE_END) == 0xFFFFFFFF ) { + _PR_MD_MAP_LSEEK_ERROR(GetLastError()); + CloseHandle(file); + return -1; + } + } + + return (PROsfd)file; +} + +PRInt32 +_PR_MD_READ(PRFileDesc *fd, void *buf, PRInt32 len) +{ + PROsfd f = fd->secret->md.osfd; + PRUint32 bytes; + int rv, err; + LONG hiOffset = 0; + LONG loOffset; + + if (!fd->secret->md.sync_file_io) { + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + me->md.overlapped.overlapped.Offset = SetFilePointer((HANDLE)f, 0, &me->md.overlapped.overlapped.OffsetHigh, FILE_CURRENT); + PR_ASSERT((me->md.overlapped.overlapped.Offset != 0xffffffff) || (GetLastError() == NO_ERROR)); + + if (fd->secret->inheritable == _PR_TRI_TRUE) { + rv = ReadFile((HANDLE)f, + (LPVOID)buf, + len, + &bytes, + &me->md.overlapped.overlapped); + if (rv != 0) { + loOffset = SetFilePointer((HANDLE)f, bytes, &hiOffset, FILE_CURRENT); + PR_ASSERT((loOffset != 0xffffffff) || (GetLastError() == NO_ERROR)); + return bytes; + } + err = GetLastError(); + if (err == ERROR_IO_PENDING) { + rv = GetOverlappedResult((HANDLE)f, + &me->md.overlapped.overlapped, &bytes, TRUE); + if (rv != 0) { + loOffset = SetFilePointer((HANDLE)f, bytes, &hiOffset, FILE_CURRENT); + PR_ASSERT((loOffset != 0xffffffff) || (GetLastError() == NO_ERROR)); + return bytes; + } + err = GetLastError(); + } + if (err == ERROR_HANDLE_EOF) { + return 0; + } else { + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + } else { + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)f); + PR_ASSERT(rv != 0); + fd->secret->md.io_model_committed = PR_TRUE; + } + + if (_native_threads_only) + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = f; + + rv = ReadFile((HANDLE)f, + (LPVOID)buf, + len, + &bytes, + &me->md.overlapped.overlapped); + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + if (err == ERROR_HANDLE_EOF) { + return 0; + } + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + if (me->md.blocked_io_error == ERROR_HANDLE_EOF) { + return 0; + } + _PR_MD_MAP_READ_ERROR(me->md.blocked_io_error); + return -1; + } + + SetFilePointer((HANDLE)f, me->md.blocked_io_bytes, 0, FILE_CURRENT); + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; + } + } else { + + rv = ReadFile((HANDLE)f, + (LPVOID)buf, + len, + &bytes, + NULL); + if (rv == 0) { + err = GetLastError(); + /* ERROR_HANDLE_EOF can only be returned by async io */ + PR_ASSERT(err != ERROR_HANDLE_EOF); + if (err == ERROR_BROKEN_PIPE) { + /* The write end of the pipe has been closed. */ + return 0; + } + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + return bytes; + } +} + +PRInt32 +_PR_MD_WRITE(PRFileDesc *fd, const void *buf, PRInt32 len) +{ + PROsfd f = fd->secret->md.osfd; + PRInt32 bytes; + int rv, err; + LONG hiOffset = 0; + LONG loOffset; + LARGE_INTEGER offset; /* use for the calculation of the new offset */ + + if (!fd->secret->md.sync_file_io) { + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return -1; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + me->md.overlapped.overlapped.Offset = SetFilePointer((HANDLE)f, 0, &me->md.overlapped.overlapped.OffsetHigh, FILE_CURRENT); + PR_ASSERT((me->md.overlapped.overlapped.Offset != 0xffffffff) || (GetLastError() == NO_ERROR)); + + if (fd->secret->inheritable == _PR_TRI_TRUE) { + rv = WriteFile((HANDLE)f, + (LPVOID)buf, + len, + &bytes, + &me->md.overlapped.overlapped); + if (rv != 0) { + loOffset = SetFilePointer((HANDLE)f, bytes, &hiOffset, FILE_CURRENT); + PR_ASSERT((loOffset != 0xffffffff) || (GetLastError() == NO_ERROR)); + return bytes; + } + err = GetLastError(); + if (err == ERROR_IO_PENDING) { + rv = GetOverlappedResult((HANDLE)f, + &me->md.overlapped.overlapped, &bytes, TRUE); + if (rv != 0) { + loOffset = SetFilePointer((HANDLE)f, bytes, &hiOffset, FILE_CURRENT); + PR_ASSERT((loOffset != 0xffffffff) || (GetLastError() == NO_ERROR)); + return bytes; + } + err = GetLastError(); + } + _PR_MD_MAP_READ_ERROR(err); + return -1; + } else { + if (!fd->secret->md.io_model_committed) { + rv = _md_Associate((HANDLE)f); + PR_ASSERT(rv != 0); + fd->secret->md.io_model_committed = PR_TRUE; + } + if (_native_threads_only) + me->md.overlapped.overlapped.hEvent = me->md.thr_event; + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + me->io_fd = f; + + rv = WriteFile((HANDLE)f, + buf, + len, + &bytes, + &(me->md.overlapped.overlapped)); + if ( (rv == 0) && ((err = GetLastError()) != ERROR_IO_PENDING) ) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_WRITE_ERROR(err); + return -1; + } + + if (_native_threads_only && rv) { + _native_thread_io_nowait(me, rv, bytes); + } else if (_NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) { + PR_ASSERT(0); + return -1; + } + + PR_ASSERT(me->io_pending == PR_FALSE || me->io_suspended == PR_TRUE); + + if (me->io_suspended) { + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + } else { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } + return -1; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_WRITE_ERROR(me->md.blocked_io_error); + return -1; + } + + /* + * Moving the file pointer by a relative offset (FILE_CURRENT) + * does not work with a file on a network drive exported by a + * Win2K system. We still don't know why. A workaround is to + * move the file pointer by an absolute offset (FILE_BEGIN). + * (Bugzilla bug 70765) + */ + offset.LowPart = me->md.overlapped.overlapped.Offset; + offset.HighPart = me->md.overlapped.overlapped.OffsetHigh; + offset.QuadPart += me->md.blocked_io_bytes; + + SetFilePointer((HANDLE)f, offset.LowPart, &offset.HighPart, FILE_BEGIN); + + PR_ASSERT(me->io_pending == PR_FALSE); + + return me->md.blocked_io_bytes; + } + } else { + rv = WriteFile((HANDLE)f, + buf, + len, + &bytes, + NULL); + if (rv == 0) { + _PR_MD_MAP_WRITE_ERROR(GetLastError()); + return -1; + } + return bytes; + } +} + +PRInt32 +_PR_MD_SOCKETAVAILABLE(PRFileDesc *fd) +{ + PRInt32 result; + + if (ioctlsocket(fd->secret->md.osfd, FIONREAD, &result) < 0) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, WSAGetLastError()); + return -1; + } + return result; +} + +PRInt32 +_PR_MD_PIPEAVAILABLE(PRFileDesc *fd) +{ + if (NULL == fd) + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0); + else + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return -1; +} + +PROffset32 +_PR_MD_LSEEK(PRFileDesc *fd, PROffset32 offset, PRSeekWhence whence) +{ + DWORD moveMethod; + PROffset32 rv; + + switch (whence) { + case PR_SEEK_SET: + moveMethod = FILE_BEGIN; + break; + case PR_SEEK_CUR: + moveMethod = FILE_CURRENT; + break; + case PR_SEEK_END: + moveMethod = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + rv = SetFilePointer((HANDLE)fd->secret->md.osfd, offset, NULL, moveMethod); + + /* + * If the lpDistanceToMoveHigh argument (third argument) is + * NULL, SetFilePointer returns 0xffffffff on failure. + */ + if (-1 == rv) { + _PR_MD_MAP_LSEEK_ERROR(GetLastError()); + } + return rv; +} + +PROffset64 +_PR_MD_LSEEK64(PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence) +{ + DWORD moveMethod; + LARGE_INTEGER li; + DWORD err; + + switch (whence) { + case PR_SEEK_SET: + moveMethod = FILE_BEGIN; + break; + case PR_SEEK_CUR: + moveMethod = FILE_CURRENT; + break; + case PR_SEEK_END: + moveMethod = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + li.QuadPart = offset; + li.LowPart = SetFilePointer((HANDLE)fd->secret->md.osfd, + li.LowPart, &li.HighPart, moveMethod); + + if (0xffffffff == li.LowPart && (err = GetLastError()) != NO_ERROR) { + _PR_MD_MAP_LSEEK_ERROR(err); + li.QuadPart = -1; + } + return li.QuadPart; +} + +/* + * This is documented to succeed on read-only files, but Win32's + * FlushFileBuffers functions fails with "access denied" in such a + * case. So we only signal an error if the error is *not* "access + * denied". + */ +PRInt32 +_PR_MD_FSYNC(PRFileDesc *fd) +{ + /* + * From the documentation: + * + * On Windows NT, the function FlushFileBuffers fails if hFile + * is a handle to console output. That is because console + * output is not buffered. The function returns FALSE, and + * GetLastError returns ERROR_INVALID_HANDLE. + * + * On the other hand, on Win95, it returns without error. I cannot + * assume that 0, 1, and 2 are console, because if someone closes + * System.out and then opens a file, they might get file descriptor + * 1. An error on *that* version of 1 should be reported, whereas + * an error on System.out (which was the original 1) should be + * ignored. So I use isatty() to ensure that such an error was + * because of this, and if it was, I ignore the error. + */ + + BOOL ok = FlushFileBuffers((HANDLE)fd->secret->md.osfd); + + if (!ok) { + DWORD err = GetLastError(); + + if (err != ERROR_ACCESS_DENIED) { /* from winerror.h */ + _PR_MD_MAP_FSYNC_ERROR(err); + return -1; + } + } + return 0; +} + +PRInt32 +_PR_MD_CLOSE(PROsfd osfd, PRBool socket) +{ + PRInt32 rv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (socket) { + rv = closesocket((SOCKET)osfd); + if (rv < 0) + _PR_MD_MAP_CLOSE_ERROR(WSAGetLastError()); + } else { + rv = CloseHandle((HANDLE)osfd)?0:-1; + if (rv < 0) + _PR_MD_MAP_CLOSE_ERROR(GetLastError()); + } + + if (rv == 0 && me->io_suspended) { + if (me->io_fd == osfd) { + PRBool fWait; + + _PR_THREAD_LOCK(me); + me->state = _PR_IO_WAIT; + /* The IO could have completed on another thread just after + * calling closesocket while the io_suspended flag was true. + * So we now grab the lock to do a safe check on io_pending to + * see if we need to wait or not. + */ + fWait = me->io_pending; + me->io_suspended = PR_FALSE; + me->md.interrupt_disabled = PR_TRUE; + _PR_THREAD_UNLOCK(me); + + if (fWait) + _NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT); + PR_ASSERT(me->io_suspended == PR_FALSE); + PR_ASSERT(me->io_pending == PR_FALSE); + /* + * I/O operation is no longer pending; the thread can now + * run on any cpu + */ + _PR_THREAD_LOCK(me); + me->md.interrupt_disabled = PR_FALSE; + me->md.thr_bound_cpu = NULL; + me->io_suspended = PR_FALSE; + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(me); + } + } + return rv; +} + +PRStatus +_PR_MD_SET_FD_INHERITABLE(PRFileDesc *fd, PRBool inheritable) +{ + BOOL rv; + + if (fd->secret->md.io_model_committed) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return PR_FAILURE; + } + rv = SetHandleInformation( + (HANDLE)fd->secret->md.osfd, + HANDLE_FLAG_INHERIT, + inheritable ? HANDLE_FLAG_INHERIT : 0); + if (0 == rv) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +void +_PR_MD_INIT_FD_INHERITABLE(PRFileDesc *fd, PRBool imported) +{ + if (imported) { + fd->secret->inheritable = _PR_TRI_UNKNOWN; + } else { + fd->secret->inheritable = _PR_TRI_FALSE; + } +} + +void +_PR_MD_QUERY_FD_INHERITABLE(PRFileDesc *fd) +{ + DWORD flags; + + PR_ASSERT(_PR_TRI_UNKNOWN == fd->secret->inheritable); + if (fd->secret->md.io_model_committed) { + return; + } + if (GetHandleInformation((HANDLE)fd->secret->md.osfd, &flags)) { + if (flags & HANDLE_FLAG_INHERIT) { + fd->secret->inheritable = _PR_TRI_TRUE; + } else { + fd->secret->inheritable = _PR_TRI_FALSE; + } + } +} + + +/* --- DIR IO ------------------------------------------------------------ */ +#define GetFileFromDIR(d) (d)->d_entry.cFileName +#define FileIsHidden(d) ((d)->d_entry.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) + +void FlipSlashes(char *cp, int len) +{ + while (--len >= 0) { + if (cp[0] == '/') { + cp[0] = PR_DIRECTORY_SEPARATOR; + } + cp = _mbsinc(cp); + } +} /* end FlipSlashes() */ + +/* +** +** Local implementations of standard Unix RTL functions which are not provided +** by the VC RTL. +** +*/ + +PRInt32 +_PR_MD_CLOSE_DIR(_MDDir *d) +{ + if ( d ) { + if (FindClose( d->d_hdl )) { + d->magic = (PRUint32)-1; + return 0; + } else { + _PR_MD_MAP_CLOSEDIR_ERROR(GetLastError()); + return -1; + } + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; +} + + +PRStatus +_PR_MD_OPEN_DIR(_MDDir *d, const char *name) +{ + char filename[ MAX_PATH ]; + int len; + + len = strlen(name); + /* Need 5 bytes for \*.* and the trailing null byte. */ + if (len + 5 > MAX_PATH) { + PR_SetError(PR_NAME_TOO_LONG_ERROR, 0); + return PR_FAILURE; + } + strcpy(filename, name); + + /* + * If 'name' ends in a slash or backslash, do not append + * another backslash. + */ + if (IsPrevCharSlash(filename, filename + len)) { + len--; + } + strcpy(&filename[len], "\\*.*"); + FlipSlashes( filename, strlen(filename) ); + + d->d_hdl = FindFirstFile( filename, &(d->d_entry) ); + if ( d->d_hdl == INVALID_HANDLE_VALUE ) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return PR_FAILURE; + } + d->firstEntry = PR_TRUE; + d->magic = _MD_MAGIC_DIR; + return PR_SUCCESS; +} + +char * +_PR_MD_READ_DIR(_MDDir *d, PRIntn flags) +{ + PRInt32 err; + BOOL rv; + char *fileName; + + if ( d ) { + while (1) { + if (d->firstEntry) { + d->firstEntry = PR_FALSE; + rv = 1; + } else { + rv = FindNextFile(d->d_hdl, &(d->d_entry)); + } + if (rv == 0) { + break; + } + fileName = GetFileFromDIR(d); + if ( (flags & PR_SKIP_DOT) && + (fileName[0] == '.') && (fileName[1] == '\0')) + continue; + if ( (flags & PR_SKIP_DOT_DOT) && + (fileName[0] == '.') && (fileName[1] == '.') && + (fileName[2] == '\0')) + continue; + if ( (flags & PR_SKIP_HIDDEN) && FileIsHidden(d)) + continue; + return fileName; + } + err = GetLastError(); + PR_ASSERT(NO_ERROR != err); + _PR_MD_MAP_READDIR_ERROR(err); + return NULL; + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return NULL; +} + +PRInt32 +_PR_MD_DELETE(const char *name) +{ + if (DeleteFile(name)) { + return 0; + } else { + _PR_MD_MAP_DELETE_ERROR(GetLastError()); + return -1; + } +} + +void +_PR_FileTimeToPRTime(const FILETIME *filetime, PRTime *prtm) +{ + PR_ASSERT(sizeof(FILETIME) == sizeof(PRTime)); + CopyMemory(prtm, filetime, sizeof(PRTime)); +#ifdef __GNUC__ + *prtm = (*prtm - _pr_filetime_offset) / 10LL; +#else + *prtm = (*prtm - _pr_filetime_offset) / 10i64; +#endif + +#ifdef DEBUG + /* Doublecheck our calculation. */ + { + SYSTEMTIME systime; + PRExplodedTime etm; + PRTime cmp; /* for comparison */ + BOOL rv; + + rv = FileTimeToSystemTime(filetime, &systime); + PR_ASSERT(0 != rv); + + /* + * PR_ImplodeTime ignores wday and yday. + */ + etm.tm_usec = systime.wMilliseconds * PR_USEC_PER_MSEC; + etm.tm_sec = systime.wSecond; + etm.tm_min = systime.wMinute; + etm.tm_hour = systime.wHour; + etm.tm_mday = systime.wDay; + etm.tm_month = systime.wMonth - 1; + etm.tm_year = systime.wYear; + /* + * It is not well-documented what time zone the FILETIME's + * are in. WIN32_FIND_DATA is documented to be in UTC (GMT). + * But BY_HANDLE_FILE_INFORMATION is unclear about this. + * By our best judgement, we assume that FILETIME is in UTC. + */ + etm.tm_params.tp_gmt_offset = 0; + etm.tm_params.tp_dst_offset = 0; + cmp = PR_ImplodeTime(&etm); + + /* + * SYSTEMTIME is in milliseconds precision, so we convert PRTime's + * microseconds to milliseconds before doing the comparison. + */ + PR_ASSERT((cmp / PR_USEC_PER_MSEC) == (*prtm / PR_USEC_PER_MSEC)); + } +#endif /* DEBUG */ +} + +PRInt32 +_PR_MD_STAT(const char *fn, struct stat *info) +{ + PRInt32 rv; + + rv = _stat(fn, (struct _stat *)info); + if (-1 == rv) { + /* + * Check for MSVC runtime library _stat() bug. + * (It's really a bug in FindFirstFile().) + * If a pathname ends in a backslash or slash, + * e.g., c:\temp\ or c:/temp/, _stat() will fail. + * Note: a pathname ending in a slash (e.g., c:/temp/) + * can be handled by _stat() on NT but not on Win95. + * + * We remove the backslash or slash at the end and + * try again. + */ + + int len = strlen(fn); + if (len > 0 && len <= _MAX_PATH + && IsPrevCharSlash(fn, fn + len)) { + char newfn[_MAX_PATH + 1]; + + strcpy(newfn, fn); + newfn[len - 1] = '\0'; + rv = _stat(newfn, (struct _stat *)info); + } + } + + if (-1 == rv) { + _PR_MD_MAP_STAT_ERROR(errno); + } + return rv; +} + +#define _PR_IS_SLASH(ch) ((ch) == '/' || (ch) == '\\') + +static PRBool +IsPrevCharSlash(const char *str, const char *current) +{ + const char *prev; + + if (str >= current) + return PR_FALSE; + prev = _mbsdec(str, current); + return (prev == current - 1) && _PR_IS_SLASH(*prev); +} + +/* + * IsRootDirectory -- + * + * Return PR_TRUE if the pathname 'fn' is a valid root directory, + * else return PR_FALSE. The char buffer pointed to by 'fn' must + * be writable. During the execution of this function, the contents + * of the buffer pointed to by 'fn' may be modified, but on return + * the original contents will be restored. 'buflen' is the size of + * the buffer pointed to by 'fn'. + * + * Root directories come in three formats: + * 1. / or \, meaning the root directory of the current drive. + * 2. C:/ or C:\, where C is a drive letter. + * 3. \\<server name>\<share point name>\ or + * \\<server name>\<share point name>, meaning the root directory + * of a UNC (Universal Naming Convention) name. + */ + +static PRBool +IsRootDirectory(char *fn, size_t buflen) +{ + char *p; + PRBool slashAdded = PR_FALSE; + PRBool rv = PR_FALSE; + + if (_PR_IS_SLASH(fn[0]) && fn[1] == '\0') { + return PR_TRUE; + } + + if (isalpha(fn[0]) && fn[1] == ':' && _PR_IS_SLASH(fn[2]) + && fn[3] == '\0') { + rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE; + return rv; + } + + /* The UNC root directory */ + + if (_PR_IS_SLASH(fn[0]) && _PR_IS_SLASH(fn[1])) { + /* The 'server' part should have at least one character. */ + p = &fn[2]; + if (*p == '\0' || _PR_IS_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the next slash */ + do { + p = _mbsinc(p); + } while (*p != '\0' && !_PR_IS_SLASH(*p)); + if (*p == '\0') { + return PR_FALSE; + } + + /* The 'share' part should have at least one character. */ + p++; + if (*p == '\0' || _PR_IS_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the final slash */ + do { + p = _mbsinc(p); + } while (*p != '\0' && !_PR_IS_SLASH(*p)); + if (_PR_IS_SLASH(*p) && p[1] != '\0') { + return PR_FALSE; + } + if (*p == '\0') { + /* + * GetDriveType() doesn't work correctly if the + * path is of the form \\server\share, so we add + * a final slash temporarily. + */ + if ((p + 1) < (fn + buflen)) { + *p++ = '\\'; + *p = '\0'; + slashAdded = PR_TRUE; + } else { + return PR_FALSE; /* name too long */ + } + } + rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE; + /* restore the 'fn' buffer */ + if (slashAdded) { + *--p = '\0'; + } + } + return rv; +} + +PRInt32 +_PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info) +{ + WIN32_FILE_ATTRIBUTE_DATA findFileData; + + if (NULL == fn || '\0' == *fn) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + if (!GetFileAttributesEx(fn, GetFileExInfoStandard, &findFileData)) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + + if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } else { + info->type = PR_FILE_FILE; + } + + info->size = findFileData.nFileSizeHigh; + info->size = (info->size << 32) + findFileData.nFileSizeLow; + + _PR_FileTimeToPRTime(&findFileData.ftLastWriteTime, &info->modifyTime); + + if (0 == findFileData.ftCreationTime.dwLowDateTime && + 0 == findFileData.ftCreationTime.dwHighDateTime) { + info->creationTime = info->modifyTime; + } else { + _PR_FileTimeToPRTime(&findFileData.ftCreationTime, + &info->creationTime); + } + + return 0; +} + +PRInt32 +_PR_MD_GETFILEINFO(const char *fn, PRFileInfo *info) +{ + PRFileInfo64 info64; + PRInt32 rv = _PR_MD_GETFILEINFO64(fn, &info64); + if (0 == rv) + { + info->type = info64.type; + info->size = (PRUint32) info64.size; + info->modifyTime = info64.modifyTime; + info->creationTime = info64.creationTime; + } + return rv; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO64(const PRFileDesc *fd, PRFileInfo64 *info) +{ + int rv; + + BY_HANDLE_FILE_INFORMATION hinfo; + + rv = GetFileInformationByHandle((HANDLE)fd->secret->md.osfd, &hinfo); + if (rv == FALSE) { + _PR_MD_MAP_FSTAT_ERROR(GetLastError()); + return -1; + } + + if (hinfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) + info->type = PR_FILE_DIRECTORY; + else + info->type = PR_FILE_FILE; + + info->size = hinfo.nFileSizeHigh; + info->size = (info->size << 32) + hinfo.nFileSizeLow; + + _PR_FileTimeToPRTime(&hinfo.ftLastWriteTime, &(info->modifyTime) ); + _PR_FileTimeToPRTime(&hinfo.ftCreationTime, &(info->creationTime) ); + + return 0; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO(const PRFileDesc *fd, PRFileInfo *info) +{ + int rv; + + BY_HANDLE_FILE_INFORMATION hinfo; + + rv = GetFileInformationByHandle((HANDLE)fd->secret->md.osfd, &hinfo); + if (rv == FALSE) { + _PR_MD_MAP_FSTAT_ERROR(GetLastError()); + return -1; + } + + if (hinfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) + info->type = PR_FILE_DIRECTORY; + else + info->type = PR_FILE_FILE; + + info->size = hinfo.nFileSizeLow; + + _PR_FileTimeToPRTime(&hinfo.ftLastWriteTime, &(info->modifyTime) ); + _PR_FileTimeToPRTime(&hinfo.ftCreationTime, &(info->creationTime) ); + + return 0; +} + +PRInt32 +_PR_MD_RENAME(const char *from, const char *to) +{ + /* Does this work with dot-relative pathnames? */ + if (MoveFile(from, to)) { + return 0; + } else { + _PR_MD_MAP_RENAME_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_ACCESS(const char *name, PRAccessHow how) +{ + PRInt32 rv; + + switch (how) { + case PR_ACCESS_WRITE_OK: + rv = _access(name, 02); + break; + case PR_ACCESS_READ_OK: + rv = _access(name, 04); + break; + case PR_ACCESS_EXISTS: + rv = _access(name, 00); + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + if (rv < 0) { + _PR_MD_MAP_ACCESS_ERROR(errno); + } + return rv; +} + +PRInt32 +_PR_MD_MKDIR(const char *name, PRIntn mode) +{ + /* XXXMB - how to translate the "mode"??? */ + if (CreateDirectory(name, NULL)) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_MAKE_DIR(const char *name, PRIntn mode) +{ + BOOL rv; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (_PR_NT_MakeSecurityDescriptorACL(mode, dirAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + rv = CreateDirectory(name, lpSA); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (rv) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_RMDIR(const char *name) +{ + if (RemoveDirectory(name)) { + return 0; + } else { + _PR_MD_MAP_RMDIR_ERROR(GetLastError()); + return -1; + } +} + +PRStatus +_PR_MD_LOCKFILE(PROsfd f) +{ + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return PR_FAILURE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + + rv = LockFileEx((HANDLE)f, + LOCKFILE_EXCLUSIVE_LOCK, + 0, + 0x7fffffff, + 0, + &me->md.overlapped.overlapped); + + if (_native_threads_only) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + if (rv == FALSE) { + err = GetLastError(); + PR_ASSERT(err != ERROR_IO_PENDING); + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } + return PR_SUCCESS; + } + + /* HACK AROUND NT BUG + * NT 3.51 has a bug. In NT 3.51, if LockFileEx returns true, you + * don't get any completion on the completion port. This is a bug. + * + * They fixed it on NT4.0 so that you do get a completion. + * + * If we pretend we won't get a completion, NSPR gets confused later + * when the unexpected completion arrives. If we assume we do get + * a completion, we hang on 3.51. Worse, Microsoft informs me that the + * behavior varies on 3.51 depending on if you are using a network + * file system or a local disk! + * + * Solution: For now, _nt_version_gets_lockfile_completion is set + * depending on whether or not this system is EITHER + * - running NT 4.0 + * - running NT 3.51 with a service pack greater than 5. + * + * In the meantime, this code may not work on network file systems. + * + */ + + if ( rv == FALSE && ((err = GetLastError()) != ERROR_IO_PENDING)) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } +#ifdef _NEED_351_FILE_LOCKING_HACK + else if (rv) { + /* If this is NT 3.51 and the file is local, then we won't get a + * completion back from LockFile when it succeeded. + */ + if (_nt_version_gets_lockfile_completion == PR_FALSE) { + if ( IsFileLocal((HANDLE)f) == _PR_LOCAL_FILE) { + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + return PR_SUCCESS; + } + } + } +#endif /* _NEED_351_FILE_LOCKING_HACK */ + + if (_NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_LOCKF_ERROR(me->md.blocked_io_error); + return PR_FAILURE; + } + + return PR_SUCCESS; +} + +PRStatus +_PR_MD_TLOCKFILE(PROsfd f) +{ + PRInt32 rv, err; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return PR_FAILURE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + _PR_THREAD_LOCK(me); + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return -1; + } + me->io_pending = PR_TRUE; + me->state = _PR_IO_WAIT; + _PR_THREAD_UNLOCK(me); + + rv = LockFileEx((HANDLE)f, + LOCKFILE_FAIL_IMMEDIATELY|LOCKFILE_EXCLUSIVE_LOCK, + 0, + 0x7fffffff, + 0, + &me->md.overlapped.overlapped); + if (_native_threads_only) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + if (rv == FALSE) { + err = GetLastError(); + PR_ASSERT(err != ERROR_IO_PENDING); + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } + return PR_SUCCESS; + } + if ( rv == FALSE && ((err = GetLastError()) != ERROR_IO_PENDING)) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } +#ifdef _NEED_351_FILE_LOCKING_HACK + else if (rv) { + /* If this is NT 3.51 and the file is local, then we won't get a + * completion back from LockFile when it succeeded. + */ + if (_nt_version_gets_lockfile_completion == PR_FALSE) { + if ( IsFileLocal((HANDLE)f) == _PR_LOCAL_FILE) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + return PR_SUCCESS; + } + } + } +#endif /* _NEED_351_FILE_LOCKING_HACK */ + + if (_NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT) == PR_FAILURE) { + _PR_THREAD_LOCK(me); + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + _PR_THREAD_UNLOCK(me); + return PR_FAILURE; + } + _PR_THREAD_UNLOCK(me); + + return PR_FAILURE; + } + + if (me->md.blocked_io_status == 0) { + _PR_MD_MAP_LOCKF_ERROR(me->md.blocked_io_error); + return PR_FAILURE; + } + + return PR_SUCCESS; +} + + +PRStatus +_PR_MD_UNLOCKFILE(PROsfd f) +{ + PRInt32 rv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (me->io_suspended) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return PR_FAILURE; + } + + memset(&(me->md.overlapped.overlapped), 0, sizeof(OVERLAPPED)); + + rv = UnlockFileEx((HANDLE)f, + 0, + 0x7fffffff, + 0, + &me->md.overlapped.overlapped); + + if (rv) + return PR_SUCCESS; + else { + int err = GetLastError(); + _PR_MD_MAP_LOCKF_ERROR(err); + return PR_FAILURE; + } +} + +void +_PR_MD_MAKE_NONBLOCK(PRFileDesc *f) +{ + /* + * On NT, we either call _md_Associate() or _md_MakeNonblock(), + * depending on whether the socket is blocking or not. + * + * Once we associate a socket with the io completion port, + * there is no way to disassociate it from the io completion + * port. So we have to call _md_Associate/_md_MakeNonblock + * lazily. + */ +} + +#ifdef _NEED_351_FILE_LOCKING_HACK +/*************** +** +** Lockfile hacks +** +** The following code is a hack to work around a microsoft bug with lockfile. +** The problem is that on NT 3.51, if LockFileEx() succeeds, you never +** get a completion back for files that are on local disks. So, we need to +** know if a file is local or remote so we can tell if we should expect +** a completion. +** +** The only way to check if a file is local or remote based on the handle is +** to get the serial number for the volume it is mounted on and then to +** compare that with mounted drives. This code caches the volume numbers of +** fixed disks and does a relatively quick check. +** +** Locking: Since the only thing we ever do when multithreaded is a 32bit +** assignment, we probably don't need locking. It is included just +** case anyway. +** +** Limitations: Does not work on floppies because they are too slow +** Unknown if it will work on wierdo 3rd party file systems +** +**************** +*/ + +/* There can only be 26 drive letters on NT */ +#define _PR_MAX_DRIVES 26 + +_MDLock cachedVolumeLock; +DWORD dwCachedVolumeSerialNumbers[_PR_MAX_DRIVES] = {0}; +DWORD dwLastCachedDrive = 0; +DWORD dwRemoveableDrivesToCheck = 0; /* bitmask for removeable drives */ + +PRBool IsFileLocalInit() +{ + TCHAR lpBuffer[_PR_MAX_DRIVES*5]; + DWORD nBufferLength = _PR_MAX_DRIVES*5; + DWORD nBufferNeeded = GetLogicalDriveStrings(0, NULL); + DWORD dwIndex = 0; + DWORD dwDriveType; + DWORD dwVolumeSerialNumber; + DWORD dwDriveIndex = 0; + DWORD oldmode = (DWORD) -1; + + _MD_NEW_LOCK(&cachedVolumeLock); + + nBufferNeeded = GetLogicalDriveStrings(nBufferLength, lpBuffer); + if (nBufferNeeded == 0 || nBufferNeeded > nBufferLength) + return PR_FALSE; + + // Calling GetVolumeInformation on a removeable drive where the + // disk is currently removed will cause a dialog box to the + // console. This is not good. + // Temporarily disable the SEM_FAILCRITICALERRORS to avoid the + // damn dialog. + + dwCachedVolumeSerialNumbers[dwDriveIndex] = 0; + oldmode = SetErrorMode(SEM_FAILCRITICALERRORS); + + // now loop through the logical drives + while(lpBuffer[dwIndex] != TEXT('\0')) + { + // skip the floppy drives. This is *SLOW* + if ((lpBuffer[dwIndex] == TEXT('A')) || (lpBuffer[dwIndex] == TEXT('B'))) + /* Skip over floppies */; + else + { + dwDriveIndex = (lpBuffer[dwIndex] - TEXT('A')); + + dwDriveType = GetDriveType(&lpBuffer[dwIndex]); + + switch(dwDriveType) + { + // Ignore these drive types + case 0: + case 1: + case DRIVE_REMOTE: + default: // If the drive type is unknown, ignore it. + break; + + // Removable media drives can have different serial numbers + // at different times, so cache the current serial number + // but keep track of them so they can be rechecked if necessary. + case DRIVE_REMOVABLE: + + // CDROM is a removable media + case DRIVE_CDROM: + + // no idea if ramdisks can change serial numbers or not + // but it doesn't hurt to treat them as removable. + + case DRIVE_RAMDISK: + + + // Here is where we keep track of removable drives. + dwRemoveableDrivesToCheck |= 1 << dwDriveIndex; + + // removable drives fall through to fixed drives and get cached. + + case DRIVE_FIXED: + + // cache volume serial numbers. + if (GetVolumeInformation( + &lpBuffer[dwIndex], + NULL, 0, + &dwVolumeSerialNumber, + NULL, NULL, NULL, 0) + ) + { + if (dwLastCachedDrive < dwDriveIndex) + dwLastCachedDrive = dwDriveIndex; + dwCachedVolumeSerialNumbers[dwDriveIndex] = dwVolumeSerialNumber; + } + + break; + } + } + + dwIndex += lstrlen(&lpBuffer[dwIndex]) +1; + } + + if (oldmode != (DWORD) -1) { + SetErrorMode(oldmode); + oldmode = (DWORD) -1; + } + + return PR_TRUE; +} + +PRInt32 IsFileLocal(HANDLE hFile) +{ + DWORD dwIndex = 0, dwMask; + BY_HANDLE_FILE_INFORMATION Info; + TCHAR szDrive[4] = TEXT("C:\\"); + DWORD dwVolumeSerialNumber; + DWORD oldmode = (DWORD) -1; + int rv = _PR_REMOTE_FILE; + + if (!GetFileInformationByHandle(hFile, &Info)) + return -1; + + // look to see if the volume serial number has been cached. + _MD_LOCK(&cachedVolumeLock); + while(dwIndex <= dwLastCachedDrive) + if (dwCachedVolumeSerialNumbers[dwIndex++] == Info.dwVolumeSerialNumber) + { + _MD_UNLOCK(&cachedVolumeLock); + return _PR_LOCAL_FILE; + } + _MD_UNLOCK(&cachedVolumeLock); + + // volume serial number not found in the cache. Check removable files. + // removable drives are noted as a bitmask. If the bit associated with + // a specific drive is set, then we should query its volume serial number + // as its possible it has changed. + dwMask = dwRemoveableDrivesToCheck; + dwIndex = 0; + + while(dwMask) + { + while(!(dwMask & 1)) + { + dwIndex++; + dwMask = dwMask >> 1; + } + + szDrive[0] = TEXT('A')+ (TCHAR) dwIndex; + + // Calling GetVolumeInformation on a removeable drive where the + // disk is currently removed will cause a dialog box to the + // console. This is not good. + // Temporarily disable the SEM_FAILCRITICALERRORS to avoid the + // dialog. + + oldmode = SetErrorMode(SEM_FAILCRITICALERRORS); + + if (GetVolumeInformation( + szDrive, + NULL, 0, + &dwVolumeSerialNumber, + NULL, NULL, NULL, 0) + ) + { + if (dwVolumeSerialNumber == Info.dwVolumeSerialNumber) + { + _MD_LOCK(&cachedVolumeLock); + if (dwLastCachedDrive < dwIndex) + dwLastCachedDrive = dwIndex; + dwCachedVolumeSerialNumbers[dwIndex] = dwVolumeSerialNumber; + _MD_UNLOCK(&cachedVolumeLock); + rv = _PR_LOCAL_FILE; + } + } + if (oldmode != (DWORD) -1) { + SetErrorMode(oldmode); + oldmode = (DWORD) -1; + } + + if (rv == _PR_LOCAL_FILE) + return _PR_LOCAL_FILE; + + dwIndex++; + dwMask = dwMask >> 1; + } + + return _PR_REMOTE_FILE; +} +#endif /* _NEED_351_FILE_LOCKING_HACK */ + +PR_IMPLEMENT(PRStatus) PR_NT_CancelIo(PRFileDesc *fd) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRBool fWait; + PRFileDesc *bottom; + + bottom = PR_GetIdentitiesLayer(fd, PR_NSPR_IO_LAYER); + if (!me->io_suspended || (NULL == bottom) || + (me->io_fd != bottom->secret->md.osfd)) { + PR_SetError(PR_INVALID_STATE_ERROR, 0); + return PR_FAILURE; + } + /* + * The CancelIO operation has to be issued by the same NT thread that + * issued the I/O operation + */ + PR_ASSERT(_PR_IS_NATIVE_THREAD(me) || (me->cpu == me->md.thr_bound_cpu)); + if (me->io_pending) { + if (!CancelIo((HANDLE)bottom->secret->md.osfd)) { + PR_SetError(PR_INVALID_STATE_ERROR, GetLastError()); + return PR_FAILURE; + } + } + _PR_THREAD_LOCK(me); + fWait = me->io_pending; + me->io_suspended = PR_FALSE; + me->state = _PR_IO_WAIT; + me->md.interrupt_disabled = PR_TRUE; + _PR_THREAD_UNLOCK(me); + if (fWait) + _NT_IO_WAIT(me, PR_INTERVAL_NO_TIMEOUT); + PR_ASSERT(me->io_suspended == PR_FALSE); + PR_ASSERT(me->io_pending == PR_FALSE); + + _PR_THREAD_LOCK(me); + me->md.interrupt_disabled = PR_FALSE; + me->md.thr_bound_cpu = NULL; + me->io_suspended = PR_FALSE; + me->io_pending = PR_FALSE; + me->state = _PR_RUNNING; + _PR_THREAD_UNLOCK(me); + return PR_SUCCESS; +} + +static PROsfd _nt_nonblock_accept(PRFileDesc *fd, struct sockaddr *addr, int *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + SOCKET sock; + PRInt32 rv, err; + fd_set rd; + struct timeval tv, *tvp; + + FD_ZERO(&rd); + FD_SET((SOCKET)osfd, &rd); + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + while ((sock = accept(osfd, addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + if ((rv = _PR_NTFiberSafeSelect(0, &rd, NULL, NULL, + NULL)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } + } else { + _PR_MD_MAP_ACCEPT_ERROR(err); + break; + } + } + } else if (timeout == PR_INTERVAL_NO_WAIT) { + if ((sock = accept(osfd, addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } else { + _PR_MD_MAP_ACCEPT_ERROR(err); + } + } + } else { +retry: + if ((sock = accept(osfd, addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + + rv = _PR_NTFiberSafeSelect(0, &rd, NULL, NULL, tvp); + if (rv > 0) { + goto retry; + } else if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + } else { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + } + } else { + _PR_MD_MAP_ACCEPT_ERROR(err); + } + } + } + return (PROsfd)sock; +} + +static PRInt32 _nt_nonblock_connect(PRFileDesc *fd, struct sockaddr *addr, int addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + int err; + fd_set wr, ex; + struct timeval tv, *tvp; + int len; + + if ((rv = connect(osfd, addr, addrlen)) == -1) { + if ((err = WSAGetLastError()) == WSAEWOULDBLOCK) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wr); + FD_ZERO(&ex); + FD_SET((SOCKET)osfd, &wr); + FD_SET((SOCKET)osfd, &ex); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wr, &ex, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return rv; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + /* Call Sleep(0) to work around a Winsock timeing bug. */ + Sleep(0); + if (FD_ISSET((SOCKET)osfd, &ex)) { + len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &len) == SOCKET_ERROR) { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return -1; + } + _PR_MD_MAP_CONNECT_ERROR(err); + return -1; + } + PR_ASSERT(FD_ISSET((SOCKET)osfd, &wr)); + rv = 0; + } else { + _PR_MD_MAP_CONNECT_ERROR(err); + } + } + return rv; +} + +static PRInt32 _nt_nonblock_recv(PRFileDesc *fd, char *buf, int len, int flags, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + struct timeval tv, *tvp; + fd_set rd; + int osflags; + + if (0 == flags) { + osflags = 0; + } else { + PR_ASSERT(PR_MSG_PEEK == flags); + osflags = MSG_PEEK; + } + while ((rv = recv(osfd,buf,len,osflags)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + FD_ZERO(&rd); + FD_SET((SOCKET)osfd, &rd); + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + if ((rv = _PR_NTFiberSafeSelect(0, &rd, NULL, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } else if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } + } else { + _PR_MD_MAP_RECV_ERROR(err); + break; + } + } + return(rv); +} + +static PRInt32 _nt_nonblock_send(PRFileDesc *fd, char *buf, int len, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + struct timeval tv, *tvp; + fd_set wd; + PRInt32 bytesSent = 0; + + while(bytesSent < len) { + while ((rv = send(osfd,buf,len,0)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wd); + FD_SET((SOCKET)osfd, &wd); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wd, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return -1; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + } else { + _PR_MD_MAP_SEND_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) { + break; + } + if (bytesSent < len) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wd); + FD_SET((SOCKET)osfd, &wd); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wd, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return -1; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + } + } + return bytesSent; +} + +static PRInt32 _nt_nonblock_writev(PRFileDesc *fd, const PRIOVec *iov, int size, PRIntervalTime timeout) +{ + int index; + int sent = 0; + int rv; + + for (index=0; index<size; index++) { + rv = _nt_nonblock_send(fd, iov[index].iov_base, iov[index].iov_len, timeout); + if (rv > 0) + sent += rv; + if ( rv != iov[index].iov_len ) { + if (rv < 0) { + if (fd->secret->nonblocking + && (PR_GetError() == PR_WOULD_BLOCK_ERROR) + && (sent > 0)) { + return sent; + } else { + return -1; + } + } + /* Only a nonblocking socket can have partial sends */ + PR_ASSERT(fd->secret->nonblocking); + return sent; + } + } + + return sent; +} + +static PRInt32 _nt_nonblock_sendto( + PRFileDesc *fd, const char *buf, int len, + const struct sockaddr *addr, int addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + struct timeval tv, *tvp; + fd_set wd; + PRInt32 bytesSent = 0; + + while(bytesSent < len) { + while ((rv = sendto(osfd,buf,len,0, addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wd); + FD_SET((SOCKET)osfd, &wd); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wd, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return -1; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + } else { + _PR_MD_MAP_SENDTO_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) { + break; + } + if (bytesSent < len) { + if ( timeout == PR_INTERVAL_NO_TIMEOUT ) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&wd); + FD_SET((SOCKET)osfd, &wd); + if ((rv = _PR_NTFiberSafeSelect(0, NULL, &wd, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + return -1; + } + if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + return -1; + } + } + } + return bytesSent; +} + +static PRInt32 _nt_nonblock_recvfrom(PRFileDesc *fd, char *buf, int len, struct sockaddr *addr, int *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + struct timeval tv, *tvp; + fd_set rd; + + while ((rv = recvfrom(osfd,buf,len,0,addr, addrlen)) == -1) { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) { + if (timeout == PR_INTERVAL_NO_TIMEOUT) { + tvp = NULL; + } else { + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds( + timeout - PR_SecondsToInterval(tv.tv_sec)); + tvp = &tv; + } + FD_ZERO(&rd); + FD_SET((SOCKET)osfd, &rd); + if ((rv = _PR_NTFiberSafeSelect(0, &rd, NULL, NULL, + tvp)) == -1) { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } else if (rv == 0) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } + } else { + _PR_MD_MAP_RECVFROM_ERROR(err); + break; + } + } + return(rv); +} + +/* + * UDP support: the continuation thread functions and recvfrom and sendto. + */ + +static void pt_InsertTimedInternal(pt_Continuation *op) +{ + PRInt32 delta = 0; + pt_Continuation *t_op = NULL; + PRIntervalTime now = PR_IntervalNow(), op_tmo, qd_tmo; + + /* + * If this element operation isn't timed, it gets queued at the + * end of the list (just after pt_tq.tail) and we're + * finishd early. + */ + if (PR_INTERVAL_NO_TIMEOUT == op->timeout) + { + t_op = pt_tq.tail; /* put it at the end */ + goto done; + } + + /* + * The rest of this routine actaully deals with timed ops. + */ + + if (NULL != pt_tq.op) + { + /* + * To find where in the list to put the new operation, form + * the absolute time the operations in question will expire. + * + * The new operation ('op') will expire at now() + op->timeout. + * + * The operation that will time out furthest in the future will + * do so at pt_tq.epoch + pt_tq.op->timeout. + * + * Subsequently earlier timeouts are computed based on the latter + * knowledge by subracting the timeout deltas that are stored in + * the operation list. There are operation[n]->timeout ticks + * between the expiration of operation[n-1] and operation[n].e e + * + * Therefore, the operation[n-1] will expire operation[n]->timeout + * ticks prior to operation[n]. + * + * This should be easy! + */ + t_op = pt_tq.op; /* running pointer to queued op */ + op_tmo = now + op->timeout; /* that's in absolute ticks */ + qd_tmo = pt_tq.epoch + t_op->timeout; /* likewise */ + + do + { + /* + * If 'op' expires later than t_op, then insert 'op' just + * ahead of t_op. Otherwise, compute when operation[n-1] + * expires and try again. + * + * The actual different between the expiriation of 'op' + * and the current operation what becomes the new operaton's + * timeout interval. That interval is also subtracted from + * the interval of the operation immediately following where + * we stick 'op' (unless the next one isn't timed). The new + * timeout assigned to 'op' takes into account the values of + * now() and when the previous intervals were compured. + */ + delta = op_tmo - qd_tmo; + if (delta >= 0) + { + op->timeout += (now - pt_tq.epoch); + goto done; + } + + qd_tmo -= t_op->timeout; /* previous operaton expiration */ + t_op = t_op->prev; /* point to previous operation */ + if (NULL != t_op) qd_tmo += t_op->timeout; + } while (NULL != t_op); + + /* + * If we got here we backed off the head of the list. That means that + * this timed entry has to go at the head of the list. This is just + * about like having an empty timer list. + */ + delta = op->timeout; /* $$$ is this right? */ + } + +done: + + /* + * Insert 'op' into the queue just after t_op or if t_op is null, + * at the head of the list. + * + * If t_op is NULL, the list is currently empty and this is pretty + * easy. + */ + if (NULL == t_op) + { + op->prev = NULL; + op->next = pt_tq.head; + pt_tq.head = op; + if (NULL == pt_tq.tail) pt_tq.tail = op; + else op->next->prev = op; + } + else + { + op->prev = t_op; + op->next = t_op->next; + if (NULL != op->prev) + op->prev->next = op; + if (NULL != op->next) + op->next->prev = op; + if (t_op == pt_tq.tail) + pt_tq.tail = op; + } + + /* + * Are we adjusting our epoch, etc? Are we replacing + * what was previously the element due to expire furthest + * out in the future? Is this even a timed operation? + */ + if (PR_INTERVAL_NO_TIMEOUT != op->timeout) + { + if ((NULL == pt_tq.op) /* we're the one and only */ + || (t_op == pt_tq.op)) /* we're replacing */ + { + pt_tq.op = op; + pt_tq.epoch = now; + } + } + + pt_tq.op_count += 1; + +} /* pt_InsertTimedInternal */ + +/* + * function: pt_FinishTimed + * + * Takes the finished operation out of the timed queue. It + * notifies the initiating thread that the opertions is + * complete and returns to the caller the value of the next + * operation in the list (or NULL). + */ +static pt_Continuation *pt_FinishTimedInternal(pt_Continuation *op) +{ + pt_Continuation *next; + + /* remove this one from the list */ + if (NULL == op->prev) pt_tq.head = op->next; + else op->prev->next = op->next; + if (NULL == op->next) pt_tq.tail = op->prev; + else op->next->prev = op->prev; + + /* did we happen to hit the timed op? */ + if (op == pt_tq.op) pt_tq.op = op->prev; + + next = op->next; + op->next = op->prev = NULL; + op->status = pt_continuation_done; + + pt_tq.op_count -= 1; +#if defined(DEBUG) + pt_debug.continuationsServed += 1; +#endif + PR_NotifyCondVar(op->complete); + + return next; +} /* pt_FinishTimedInternal */ + +static void ContinuationThread(void *arg) +{ + /* initialization */ + fd_set readSet, writeSet, exceptSet; + struct timeval tv; + SOCKET *pollingList = 0; /* list built for polling */ + PRIntn pollingListUsed; /* # entries used in the list */ + PRIntn pollingListNeeded; /* # entries needed this time */ + PRIntn pollingSlotsAllocated = 0; /* # entries available in list */ + PRIntervalTime mx_select_ticks = PR_MillisecondsToInterval(PT_DEFAULT_SELECT_MSEC); + + /* do some real work */ + while (1) + { + PRIntn rv; + PRStatus status; + PRIntn pollIndex; + pt_Continuation *op; + PRIntervalTime now = PR_IntervalNow(); + PRIntervalTime timeout = PR_INTERVAL_NO_TIMEOUT; + + PR_Lock(pt_tq.ml); + while (NULL == pt_tq.head) + { + status = PR_WaitCondVar(pt_tq.new_op, PR_INTERVAL_NO_TIMEOUT); + if ((PR_FAILURE == status) + && (PR_PENDING_INTERRUPT_ERROR == PR_GetError())) break; + } + pollingListNeeded = pt_tq.op_count; + PR_Unlock(pt_tq.ml); + + /* Okay. We're history */ + if ((PR_FAILURE == status) + && (PR_PENDING_INTERRUPT_ERROR == PR_GetError())) break; + + /* + * We are not holding the pt_tq.ml lock now, so more items may + * get added to pt_tq during this window of time. We hope + * that 10 more spaces in the polling list should be enough. + */ + + FD_ZERO(&readSet); + FD_ZERO(&writeSet); + FD_ZERO(&exceptSet); + pollingListNeeded += 10; + if (pollingListNeeded > pollingSlotsAllocated) + { + if (NULL != pollingList) PR_DELETE(pollingList); + pollingList = PR_MALLOC(pollingListNeeded * sizeof(PRPollDesc)); + PR_ASSERT(NULL != pollingList); + pollingSlotsAllocated = pollingListNeeded; + } + +#if defined(DEBUG) + if (pollingListNeeded > pt_debug.pollingListMax) + pt_debug.pollingListMax = pollingListUsed; +#endif + + /* + * Build up a polling list. + * This list is sorted on time. Operations that have been + * interrupted are completed and not included in the list. + * There is an assertion that the operation is in progress. + */ + pollingListUsed = 0; + PR_Lock(pt_tq.ml); + + for (op = pt_tq.head; NULL != op;) + { + if (pt_continuation_abort == op->status) + { + op->result.code = -1; + op->syserrno = WSAEINTR; + op = pt_FinishTimedInternal(op); + } + else + { + PR_ASSERT(pt_continuation_done != op->status); + op->status = pt_continuation_inprogress; + if (op->event & PR_POLL_READ) { + FD_SET(op->arg1.osfd, &readSet); + } + if (op->event & PR_POLL_WRITE) { + FD_SET(op->arg1.osfd, &writeSet); + } + if (op->event & PR_POLL_EXCEPT) { + FD_SET(op->arg1.osfd, &exceptSet); + } + pollingList[pollingListUsed] = op->arg1.osfd; + pollingListUsed += 1; + if (pollingListUsed == pollingSlotsAllocated) break; + op = op->next; + } + } + + PR_Unlock(pt_tq.ml); + + /* + * If 'op' isn't NULL at this point, then we didn't get to + * the end of the list. That means that more items got added + * to the list than we anticipated. So, forget this iteration, + * go around the horn again. + * One would hope this doesn't happen all that often. + */ + if (NULL != op) + { +#if defined(DEBUG) + pt_debug.predictionsFoiled += 1; /* keep track */ +#endif + continue; /* make it rethink things */ + } + + /* there's a chance that all ops got blown away */ + if (NULL == pt_tq.head) continue; + /* if not, we know this is the shortest timeout */ + timeout = pt_tq.head->timeout; + + /* + * We don't want to wait forever on this poll. So keep + * the interval down. The operations, if they are timed, + * still have to timeout, while those that are not timed + * should persist forever. But they may be aborted. That's + * what this anxiety is all about. + */ + if (timeout > mx_select_ticks) timeout = mx_select_ticks; + + if (PR_INTERVAL_NO_TIMEOUT != pt_tq.head->timeout) + pt_tq.head->timeout -= timeout; + tv.tv_sec = PR_IntervalToSeconds(timeout); + tv.tv_usec = PR_IntervalToMicroseconds(timeout) % PR_USEC_PER_SEC; + + rv = select(0, &readSet, &writeSet, &exceptSet, &tv); + + if (0 == rv) /* poll timed out - what about leading op? */ + { + if (0 == pt_tq.head->timeout) + { + /* + * The leading element of the timed queue has timed + * out. Get rid of it. In any case go around the + * loop again, computing the polling list, checking + * for interrupted operations. + */ + PR_Lock(pt_tq.ml); + do + { + pt_tq.head->result.code = -1; + pt_tq.head->syserrno = WSAETIMEDOUT; + op = pt_FinishTimedInternal(pt_tq.head); + } while ((NULL != op) && (0 == op->timeout)); + PR_Unlock(pt_tq.ml); + } + continue; + } + + if (-1 == rv && (WSAGetLastError() == WSAEINTR + || WSAGetLastError() == WSAEINPROGRESS)) + { + continue; /* go around the loop again */ + } + + /* + * select() says that something in our list is ready for some more + * action or is an invalid fd. Find it, load up the operation and + * see what happens. + */ + + PR_ASSERT(rv > 0 || WSAGetLastError() == WSAENOTSOCK); + + + /* + * $$$ There's a problem here. I'm running the operations list + * and I'm not holding any locks. I don't want to hold the lock + * and do the operation, so this is really messed up.. + * + * This may work out okay. The rule is that only this thread, + * the continuation thread, can remove elements from the list. + * Therefore, the list is at worst, longer than when we built + * the polling list. + */ + op = pt_tq.head; + for (pollIndex = 0; pollIndex < pollingListUsed; ++pollIndex) + { + PRInt16 revents = 0; + + PR_ASSERT(NULL != op); + + /* + * This one wants attention. Redo the operation. + * We know that there can only be more elements + * in the op list than we knew about when we created + * the poll list. Therefore, we might have to skip + * a few ops to find the right one to operation on. + */ + while (pollingList[pollIndex] != op->arg1.osfd ) + { + op = op->next; + PR_ASSERT(NULL != op); + } + + if (FD_ISSET(op->arg1.osfd, &readSet)) { + revents |= PR_POLL_READ; + } + if (FD_ISSET(op->arg1.osfd, &writeSet)) { + revents |= PR_POLL_WRITE; + } + if (FD_ISSET(op->arg1.osfd, &exceptSet)) { + revents |= PR_POLL_EXCEPT; + } + + /* + * Sip over all those not in progress. They'll be + * pruned next time we build a polling list. Call + * the continuation function. If it reports completion, + * finish off the operation. + */ + if (revents && (pt_continuation_inprogress == op->status) + && (op->function(op, revents))) + { + PR_Lock(pt_tq.ml); + op = pt_FinishTimedInternal(op); + PR_Unlock(pt_tq.ml); + } + } + } + if (NULL != pollingList) PR_DELETE(pollingList); +} /* ContinuationThread */ + +static int pt_Continue(pt_Continuation *op) +{ + PRStatus rv; + /* Finish filling in the blank slots */ + op->status = pt_continuation_sumbitted; + op->complete = PR_NewCondVar(pt_tq.ml); + + PR_Lock(pt_tq.ml); /* we provide the locking */ + + pt_InsertTimedInternal(op); /* insert in the structure */ + + PR_NotifyCondVar(pt_tq.new_op); /* notify the continuation thread */ + + while (pt_continuation_done != op->status) /* wait for completion */ + { + rv = PR_WaitCondVar(op->complete, PR_INTERVAL_NO_TIMEOUT); + /* + * If we get interrupted, we set state the continuation thread will + * see and allow it to finish the I/O operation w/ error. That way + * the rule that only the continuation thread is removing elements + * from the list is still valid. + * + * Don't call interrupt on the continuation thread. That'll just + * piss him off. He's cycling around at least every mx_select_ticks + * anyhow and should notice the request in there. + */ + if ((PR_FAILURE == rv) + && (PR_PENDING_INTERRUPT_ERROR == PR_GetError())) + op->status = pt_continuation_abort; /* our status */ + } + + PR_Unlock(pt_tq.ml); /* we provide the locking */ + + PR_DestroyCondVar(op->complete); + + return op->result.code; /* and the primary answer */ +} /* pt_Continue */ + +static PRBool pt_sendto_cont(pt_Continuation *op, PRInt16 revents) +{ + PRIntn bytes = sendto( + op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags, + (struct sockaddr*)op->arg5.addr, sizeof(*(op->arg5.addr))); + op->syserrno = WSAGetLastError(); + if (bytes > 0) /* this is progress */ + { + char *bp = op->arg2.buffer; + bp += bytes; /* adjust the buffer pointer */ + op->arg2.buffer = bp; + op->result.code += bytes; /* accumulate the number sent */ + op->arg3.amount -= bytes; /* and reduce the required count */ + return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE; + } + else return ((-1 == bytes) && (WSAEWOULDBLOCK == op->syserrno)) ? + PR_FALSE : PR_TRUE; +} /* pt_sendto_cont */ + +static PRBool pt_recvfrom_cont(pt_Continuation *op, PRInt16 revents) +{ + PRIntn addr_len = sizeof(*(op->arg5.addr)); + op->result.code = recvfrom( + op->arg1.osfd, op->arg2.buffer, op->arg3.amount, + op->arg4.flags, (struct sockaddr*)op->arg5.addr, &addr_len); + op->syserrno = WSAGetLastError(); + return ((-1 == op->result.code) && (WSAEWOULDBLOCK == op->syserrno)) ? + PR_FALSE : PR_TRUE; +} /* pt_recvfrom_cont */ + +static PRInt32 pt_SendTo( + SOCKET osfd, const void *buf, + PRInt32 amount, PRInt32 flags, const PRNetAddr *addr, + PRIntn addrlen, PRIntervalTime timeout) +{ + PRInt32 bytes = -1, err; + PRBool fNeedContinue = PR_FALSE; + + bytes = sendto( + osfd, buf, amount, flags, + (struct sockaddr*)addr, PR_NETADDR_SIZE(addr)); + if (bytes == -1) { + if ((err = WSAGetLastError()) == WSAEWOULDBLOCK) + fNeedContinue = PR_TRUE; + else + _PR_MD_MAP_SENDTO_ERROR(err); + } + if (fNeedContinue == PR_TRUE) + { + pt_Continuation op; + op.arg1.osfd = osfd; + op.arg2.buffer = (void*)buf; + op.arg3.amount = amount; + op.arg4.flags = flags; + op.arg5.addr = (PRNetAddr*)addr; + op.timeout = timeout; + op.result.code = 0; /* initialize the number sent */ + op.function = pt_sendto_cont; + op.event = PR_POLL_WRITE | PR_POLL_EXCEPT; + bytes = pt_Continue(&op); + if (bytes < 0) { + WSASetLastError(op.syserrno); + _PR_MD_MAP_SENDTO_ERROR(op.syserrno); + } + } + return bytes; +} /* pt_SendTo */ + +static PRInt32 pt_RecvFrom(SOCKET osfd, void *buf, PRInt32 amount, + PRInt32 flags, PRNetAddr *addr, PRIntn *addr_len, PRIntervalTime timeout) +{ + PRInt32 bytes = -1, err; + PRBool fNeedContinue = PR_FALSE; + + bytes = recvfrom( + osfd, buf, amount, flags, + (struct sockaddr*)addr, addr_len); + if (bytes == -1) { + if ((err = WSAGetLastError()) == WSAEWOULDBLOCK) + fNeedContinue = PR_TRUE; + else + _PR_MD_MAP_RECVFROM_ERROR(err); + } + + if (fNeedContinue == PR_TRUE) + { + pt_Continuation op; + op.arg1.osfd = osfd; + op.arg2.buffer = buf; + op.arg3.amount = amount; + op.arg4.flags = flags; + op.arg5.addr = addr; + op.timeout = timeout; + op.function = pt_recvfrom_cont; + op.event = PR_POLL_READ | PR_POLL_EXCEPT; + bytes = pt_Continue(&op); + if (bytes < 0) { + WSASetLastError(op.syserrno); + _PR_MD_MAP_RECVFROM_ERROR(op.syserrno); + } + } + return bytes; +} /* pt_RecvFrom */ diff --git a/mozilla/nsprpub/pr/src/md/windows/ntmisc.c b/mozilla/nsprpub/pr/src/md/windows/ntmisc.c new file mode 100644 index 0000000..9991c95 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/ntmisc.c @@ -0,0 +1,1215 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * ntmisc.c + * + */ + +#include "primpl.h" +#include <math.h> /* for fabs() */ +#include <windows.h> + +char *_PR_MD_GET_ENV(const char *name) +{ + return getenv(name); +} + +/* +** _PR_MD_PUT_ENV() -- add or change environment variable +** +** +*/ +PRIntn _PR_MD_PUT_ENV(const char *name) +{ + return(putenv(name)); +} + + +/* + ************************************************************************** + ************************************************************************** + ** + ** Date and time routines + ** + ************************************************************************** + ************************************************************************** + */ + +/* + * The NSPR epoch (00:00:00 1 Jan 1970 UTC) in FILETIME. + * We store the value in a PRTime variable for convenience. + */ +#ifdef __GNUC__ +const PRTime _pr_filetime_offset = 116444736000000000LL; +const PRTime _pr_filetime_divisor = 10LL; +#else +const PRTime _pr_filetime_offset = 116444736000000000i64; +const PRTime _pr_filetime_divisor = 10i64; +#endif + +#ifdef WINCE + +#define FILETIME_TO_INT64(ft) \ + (((PRInt64)ft.dwHighDateTime) << 32 | (PRInt64)ft.dwLowDateTime) + +static void +LowResTime(LPFILETIME lpft) +{ + GetCurrentFT(lpft); +} + +typedef struct CalibrationData { + long double freq; /* The performance counter frequency */ + long double offset; /* The low res 'epoch' */ + long double timer_offset; /* The high res 'epoch' */ + + /* The last high res time that we returned since recalibrating */ + PRInt64 last; + + PRBool calibrated; + + CRITICAL_SECTION data_lock; + CRITICAL_SECTION calibration_lock; + PRInt64 granularity; +} CalibrationData; + +static CalibrationData calibration; + +typedef void (*GetSystemTimeAsFileTimeFcn)(LPFILETIME); +static GetSystemTimeAsFileTimeFcn ce6_GetSystemTimeAsFileTime = NULL; + +static void +NowCalibrate(void) +{ + FILETIME ft, ftStart; + LARGE_INTEGER liFreq, now; + + if (calibration.freq == 0.0) { + if(!QueryPerformanceFrequency(&liFreq)) { + /* High-performance timer is unavailable */ + calibration.freq = -1.0; + } else { + calibration.freq = (long double) liFreq.QuadPart; + } + } + if (calibration.freq > 0.0) { + PRInt64 calibrationDelta = 0; + /* + * By wrapping a timeBegin/EndPeriod pair of calls around this loop, + * the loop seems to take much less time (1 ms vs 15ms) on Vista. + */ + timeBeginPeriod(1); + LowResTime(&ftStart); + do { + LowResTime(&ft); + } while (memcmp(&ftStart,&ft, sizeof(ft)) == 0); + timeEndPeriod(1); + + calibration.granularity = + (FILETIME_TO_INT64(ft) - FILETIME_TO_INT64(ftStart))/10; + + QueryPerformanceCounter(&now); + + calibration.offset = (long double) FILETIME_TO_INT64(ft); + calibration.timer_offset = (long double) now.QuadPart; + /* + * The windows epoch is around 1600. The unix epoch is around 1970. + * _pr_filetime_offset is the difference (in windows time units which + * are 10 times more highres than the JS time unit) + */ + calibration.offset -= _pr_filetime_offset; + calibration.offset *= 0.1; + calibration.last = 0; + + calibration.calibrated = PR_TRUE; + } +} + +#define CALIBRATIONLOCK_SPINCOUNT 0 +#define DATALOCK_SPINCOUNT 4096 +#define LASTLOCK_SPINCOUNT 4096 + +void +_MD_InitTime(void) +{ + /* try for CE6 GetSystemTimeAsFileTime first */ + HANDLE h = GetModuleHandleW(L"coredll.dll"); + ce6_GetSystemTimeAsFileTime = (GetSystemTimeAsFileTimeFcn) + GetProcAddressA(h, "GetSystemTimeAsFileTime"); + + /* otherwise go the slow route */ + if (ce6_GetSystemTimeAsFileTime == NULL) { + memset(&calibration, 0, sizeof(calibration)); + NowCalibrate(); + InitializeCriticalSection(&calibration.calibration_lock); + InitializeCriticalSection(&calibration.data_lock); + } +} + +void +_MD_CleanupTime(void) +{ + if (ce6_GetSystemTimeAsFileTime == NULL) { + DeleteCriticalSection(&calibration.calibration_lock); + DeleteCriticalSection(&calibration.data_lock); + } +} + +#define MUTEX_SETSPINCOUNT(m, c) + +/* + *----------------------------------------------------------------------- + * + * PR_Now -- + * + * Returns the current time in microseconds since the epoch. + * The epoch is midnight January 1, 1970 GMT. + * The implementation is machine dependent. This is the + * implementation for Windows. + * Cf. time_t time(time_t *tp) + * + *----------------------------------------------------------------------- + */ + +PR_IMPLEMENT(PRTime) +PR_Now(void) +{ + long double lowresTime, highresTimerValue; + FILETIME ft; + LARGE_INTEGER now; + PRBool calibrated = PR_FALSE; + PRBool needsCalibration = PR_FALSE; + PRInt64 returnedTime; + long double cachedOffset = 0.0; + + if (ce6_GetSystemTimeAsFileTime) { + union { + FILETIME ft; + PRTime prt; + } currentTime; + + PR_ASSERT(sizeof(FILETIME) == sizeof(PRTime)); + + ce6_GetSystemTimeAsFileTime(¤tTime.ft); + + /* written this way on purpose, since the second term becomes + * a constant, and the entire expression is faster to execute. + */ + return currentTime.prt/_pr_filetime_divisor - + _pr_filetime_offset/_pr_filetime_divisor; + } + + do { + if (!calibration.calibrated || needsCalibration) { + EnterCriticalSection(&calibration.calibration_lock); + EnterCriticalSection(&calibration.data_lock); + + /* Recalibrate only if no one else did before us */ + if (calibration.offset == cachedOffset) { + /* + * Since calibration can take a while, make any other + * threads immediately wait + */ + MUTEX_SETSPINCOUNT(&calibration.data_lock, 0); + + NowCalibrate(); + + calibrated = PR_TRUE; + + /* Restore spin count */ + MUTEX_SETSPINCOUNT(&calibration.data_lock, DATALOCK_SPINCOUNT); + } + LeaveCriticalSection(&calibration.data_lock); + LeaveCriticalSection(&calibration.calibration_lock); + } + + /* Calculate a low resolution time */ + LowResTime(&ft); + lowresTime = + ((long double)(FILETIME_TO_INT64(ft) - _pr_filetime_offset)) * 0.1; + + if (calibration.freq > 0.0) { + long double highresTime, diff; + DWORD timeAdjustment, timeIncrement; + BOOL timeAdjustmentDisabled; + + /* Default to 15.625 ms if the syscall fails */ + long double skewThreshold = 15625.25; + + /* Grab high resolution time */ + QueryPerformanceCounter(&now); + highresTimerValue = (long double)now.QuadPart; + + EnterCriticalSection(&calibration.data_lock); + highresTime = calibration.offset + 1000000L * + (highresTimerValue-calibration.timer_offset)/calibration.freq; + cachedOffset = calibration.offset; + + /* + * On some dual processor/core systems, we might get an earlier + * time so we cache the last time that we returned. + */ + calibration.last = PR_MAX(calibration.last,(PRInt64)highresTime); + returnedTime = calibration.last; + LeaveCriticalSection(&calibration.data_lock); + + /* Get an estimate of clock ticks per second from our own test */ + skewThreshold = calibration.granularity; + /* Check for clock skew */ + diff = lowresTime - highresTime; + + /* + * For some reason that I have not determined, the skew can be + * up to twice a kernel tick. This does not seem to happen by + * itself, but I have only seen it triggered by another program + * doing some kind of file I/O. The symptoms are a negative diff + * followed by an equally large positive diff. + */ + if (fabs(diff) > 2*skewThreshold) { + if (calibrated) { + /* + * If we already calibrated once this instance, and the + * clock is still skewed, then either the processor(s) are + * wildly changing clockspeed or the system is so busy that + * we get switched out for long periods of time. In either + * case, it would be infeasible to make use of high + * resolution results for anything, so let's resort to old + * behavior for this call. It's possible that in the + * future, the user will want the high resolution timer, so + * we don't disable it entirely. + */ + returnedTime = (PRInt64)lowresTime; + needsCalibration = PR_FALSE; + } else { + /* + * It is possible that when we recalibrate, we will return + * a value less than what we have returned before; this is + * unavoidable. We cannot tell the different between a + * faulty QueryPerformanceCounter implementation and user + * changes to the operating system time. Since we must + * respect user changes to the operating system time, we + * cannot maintain the invariant that Date.now() never + * decreases; the old implementation has this behavior as + * well. + */ + needsCalibration = PR_TRUE; + } + } else { + /* No detectable clock skew */ + returnedTime = (PRInt64)highresTime; + needsCalibration = PR_FALSE; + } + } else { + /* No high resolution timer is available, so fall back */ + returnedTime = (PRInt64)lowresTime; + } + } while (needsCalibration); + + return returnedTime; +} + +#else + +PR_IMPLEMENT(PRTime) +PR_Now(void) +{ + PRTime prt; + FILETIME ft; + SYSTEMTIME st; + + GetSystemTime(&st); + SystemTimeToFileTime(&st, &ft); + _PR_FileTimeToPRTime(&ft, &prt); + return prt; +} + +#endif + +/* + *********************************************************************** + *********************************************************************** + * + * Process creation routines + * + *********************************************************************** + *********************************************************************** + */ + +/* + * Assemble the command line by concatenating the argv array. + * On success, this function returns 0 and the resulting command + * line is returned in *cmdLine. On failure, it returns -1. + */ +static int assembleCmdLine(char *const *argv, char **cmdLine) +{ + char *const *arg; + char *p, *q; + size_t cmdLineSize; + int numBackslashes; + int i; + int argNeedQuotes; + + /* + * Find out how large the command line buffer should be. + */ + cmdLineSize = 0; + for (arg = argv; *arg; arg++) { + /* + * \ and " need to be escaped by a \. In the worst case, + * every character is a \ or ", so the string of length + * may double. If we quote an argument, that needs two ". + * Finally, we need a space between arguments, and + * a null byte at the end of command line. + */ + cmdLineSize += 2 * strlen(*arg) /* \ and " need to be escaped */ + + 2 /* we quote every argument */ + + 1; /* space in between, or final null */ + } + p = *cmdLine = PR_MALLOC((PRUint32) cmdLineSize); + if (p == NULL) { + return -1; + } + + for (arg = argv; *arg; arg++) { + /* Add a space to separates the arguments */ + if (arg != argv) { + *p++ = ' '; + } + q = *arg; + numBackslashes = 0; + argNeedQuotes = 0; + + /* + * If the argument is empty or contains white space, it needs to + * be quoted. + */ + if (**arg == '\0' || strpbrk(*arg, " \f\n\r\t\v")) { + argNeedQuotes = 1; + } + + if (argNeedQuotes) { + *p++ = '"'; + } + while (*q) { + if (*q == '\\') { + numBackslashes++; + q++; + } else if (*q == '"') { + if (numBackslashes) { + /* + * Double the backslashes since they are followed + * by a quote + */ + for (i = 0; i < 2 * numBackslashes; i++) { + *p++ = '\\'; + } + numBackslashes = 0; + } + /* To escape the quote */ + *p++ = '\\'; + *p++ = *q++; + } else { + if (numBackslashes) { + /* + * Backslashes are not followed by a quote, so + * don't need to double the backslashes. + */ + for (i = 0; i < numBackslashes; i++) { + *p++ = '\\'; + } + numBackslashes = 0; + } + *p++ = *q++; + } + } + + /* Now we are at the end of this argument */ + if (numBackslashes) { + /* + * Double the backslashes if we have a quote string + * delimiter at the end. + */ + if (argNeedQuotes) { + numBackslashes *= 2; + } + for (i = 0; i < numBackslashes; i++) { + *p++ = '\\'; + } + } + if (argNeedQuotes) { + *p++ = '"'; + } + } + + *p = '\0'; + return 0; +} + +/* + * Assemble the environment block by concatenating the envp array + * (preserving the terminating null byte in each array element) + * and adding a null byte at the end. + * + * Returns 0 on success. The resulting environment block is returned + * in *envBlock. Note that if envp is NULL, a NULL pointer is returned + * in *envBlock. Returns -1 on failure. + */ +static int assembleEnvBlock(char **envp, char **envBlock) +{ + char *p; + char *q; + char **env; + char *curEnv; + char *cwdStart, *cwdEnd; + size_t envBlockSize; + + if (envp == NULL) { + *envBlock = NULL; + return 0; + } + +#ifdef WINCE + { + PRUnichar *wideCurEnv = mozce_GetEnvString(); + int len = WideCharToMultiByte(CP_ACP, 0, wideCurEnv, -1, + NULL, 0, NULL, NULL); + curEnv = (char *) PR_MALLOC(len * sizeof(char)); + WideCharToMultiByte(CP_ACP, 0, wideCurEnv, -1, + curEnv, len, NULL, NULL); + free(wideCurEnv); + } +#else + curEnv = GetEnvironmentStrings(); +#endif + + cwdStart = curEnv; + while (*cwdStart) { + if (cwdStart[0] == '=' && cwdStart[1] != '\0' + && cwdStart[2] == ':' && cwdStart[3] == '=') { + break; + } + cwdStart += strlen(cwdStart) + 1; + } + cwdEnd = cwdStart; + if (*cwdEnd) { + cwdEnd += strlen(cwdEnd) + 1; + while (*cwdEnd) { + if (cwdEnd[0] != '=' || cwdEnd[1] == '\0' + || cwdEnd[2] != ':' || cwdEnd[3] != '=') { + break; + } + cwdEnd += strlen(cwdEnd) + 1; + } + } + envBlockSize = cwdEnd - cwdStart; + + for (env = envp; *env; env++) { + envBlockSize += strlen(*env) + 1; + } + envBlockSize++; + + p = *envBlock = PR_MALLOC((PRUint32) envBlockSize); + if (p == NULL) { +#ifdef WINCE + PR_Free(curEnv); +#else + FreeEnvironmentStrings(curEnv); +#endif + return -1; + } + + q = cwdStart; + while (q < cwdEnd) { + *p++ = *q++; + } +#ifdef WINCE + PR_Free(curEnv); +#else + FreeEnvironmentStrings(curEnv); +#endif + + for (env = envp; *env; env++) { + q = *env; + while (*q) { + *p++ = *q++; + } + *p++ = '\0'; + } + *p = '\0'; + return 0; +} + +/* + * For qsort. We sort (case-insensitive) the environment strings + * before generating the environment block. + */ +static int compare(const void *arg1, const void *arg2) +{ + return _stricmp(* (char**)arg1, * (char**)arg2); +} + +PRProcess * _PR_CreateWindowsProcess( + const char *path, + char *const *argv, + char *const *envp, + const PRProcessAttr *attr) +{ +#ifdef WINCE + STARTUPINFOW startupInfo; + PRUnichar *wideCmdLine; + PRUnichar *wideCwd; + int len = 0; +#else + STARTUPINFO startupInfo; +#endif + DWORD creationFlags = 0; + PROCESS_INFORMATION procInfo; + BOOL retVal; + char *cmdLine = NULL; + char *envBlock = NULL; + char **newEnvp = NULL; + const char *cwd = NULL; /* current working directory */ + PRProcess *proc = NULL; + PRBool hasFdInheritBuffer; + + proc = PR_NEW(PRProcess); + if (!proc) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + + if (assembleCmdLine(argv, &cmdLine) == -1) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + +#ifndef WINCE + /* + * If attr->fdInheritBuffer is not NULL, we need to insert + * it into the envp array, so envp cannot be NULL. + */ + hasFdInheritBuffer = (attr && attr->fdInheritBuffer); + if ((envp == NULL) && hasFdInheritBuffer) { + envp = environ; + } + + if (envp != NULL) { + int idx; + int numEnv; + PRBool found = PR_FALSE; + + numEnv = 0; + while (envp[numEnv]) { + numEnv++; + } + newEnvp = (char **) PR_MALLOC((numEnv + 2) * sizeof(char *)); + for (idx = 0; idx < numEnv; idx++) { + newEnvp[idx] = envp[idx]; + if (hasFdInheritBuffer && !found + && !strncmp(newEnvp[idx], "NSPR_INHERIT_FDS=", 17)) { + newEnvp[idx] = attr->fdInheritBuffer; + found = PR_TRUE; + } + } + if (hasFdInheritBuffer && !found) { + newEnvp[idx++] = attr->fdInheritBuffer; + } + newEnvp[idx] = NULL; + qsort((void *) newEnvp, (size_t) idx, sizeof(char *), compare); + } + if (assembleEnvBlock(newEnvp, &envBlock) == -1) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + goto errorExit; + } + + ZeroMemory(&startupInfo, sizeof(startupInfo)); + startupInfo.cb = sizeof(startupInfo); + + if (attr) { + PRBool redirected = PR_FALSE; + + /* + * XXX the default value for stdin, stdout, and stderr + * should probably be the console input and output, not + * those of the parent process. + */ + startupInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE); + startupInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE); + startupInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE); + if (attr->stdinFd) { + startupInfo.hStdInput = (HANDLE) attr->stdinFd->secret->md.osfd; + redirected = PR_TRUE; + } + if (attr->stdoutFd) { + startupInfo.hStdOutput = (HANDLE) attr->stdoutFd->secret->md.osfd; + redirected = PR_TRUE; + /* + * If stdout is redirected, we can assume that the process will + * not write anything useful to the console windows, and therefore + * automatically set the CREATE_NO_WINDOW flag. + */ + creationFlags |= CREATE_NO_WINDOW; + } + if (attr->stderrFd) { + startupInfo.hStdError = (HANDLE) attr->stderrFd->secret->md.osfd; + redirected = PR_TRUE; + } + if (redirected) { + startupInfo.dwFlags |= STARTF_USESTDHANDLES; + } + cwd = attr->currentDirectory; + } +#endif + +#ifdef WINCE + len = MultiByteToWideChar(CP_ACP, 0, cmdLine, -1, NULL, 0); + wideCmdLine = (PRUnichar *)PR_MALLOC(len * sizeof(PRUnichar)); + MultiByteToWideChar(CP_ACP, 0, cmdLine, -1, wideCmdLine, len); + len = MultiByteToWideChar(CP_ACP, 0, cwd, -1, NULL, 0); + wideCwd = PR_MALLOC(len * sizeof(PRUnichar)); + MultiByteToWideChar(CP_ACP, 0, cwd, -1, wideCwd, len); + retVal = CreateProcessW(NULL, + wideCmdLine, + NULL, /* security attributes for the new + * process */ + NULL, /* security attributes for the primary + * thread in the new process */ + TRUE, /* inherit handles */ + creationFlags, + envBlock, /* an environment block, consisting + * of a null-terminated block of + * null-terminated strings. Each + * string is in the form: + * name=value + * XXX: usually NULL */ + wideCwd, /* current drive and directory */ + &startupInfo, + &procInfo + ); + PR_Free(wideCmdLine); + PR_Free(wideCwd); +#else + retVal = CreateProcess(NULL, + cmdLine, + NULL, /* security attributes for the new + * process */ + NULL, /* security attributes for the primary + * thread in the new process */ + TRUE, /* inherit handles */ + creationFlags, + envBlock, /* an environment block, consisting + * of a null-terminated block of + * null-terminated strings. Each + * string is in the form: + * name=value + * XXX: usually NULL */ + cwd, /* current drive and directory */ + &startupInfo, + &procInfo + ); +#endif + + if (retVal == FALSE) { + /* XXX what error code? */ + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + goto errorExit; + } + + CloseHandle(procInfo.hThread); + proc->md.handle = procInfo.hProcess; + proc->md.id = procInfo.dwProcessId; + + PR_DELETE(cmdLine); + if (newEnvp) { + PR_DELETE(newEnvp); + } + if (envBlock) { + PR_DELETE(envBlock); + } + return proc; + +errorExit: + if (cmdLine) { + PR_DELETE(cmdLine); + } + if (newEnvp) { + PR_DELETE(newEnvp); + } + if (envBlock) { + PR_DELETE(envBlock); + } + if (proc) { + PR_DELETE(proc); + } + return NULL; +} /* _PR_CreateWindowsProcess */ + +PRStatus _PR_DetachWindowsProcess(PRProcess *process) +{ + CloseHandle(process->md.handle); + PR_DELETE(process); + return PR_SUCCESS; +} + +/* + * XXX: This implementation is a temporary quick solution. + * It can be called by native threads only (not by fibers). + */ +PRStatus _PR_WaitWindowsProcess(PRProcess *process, + PRInt32 *exitCode) +{ + DWORD dwRetVal; + + dwRetVal = WaitForSingleObject(process->md.handle, INFINITE); + if (dwRetVal == WAIT_FAILED) { + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; + } + PR_ASSERT(dwRetVal == WAIT_OBJECT_0); + if (exitCode != NULL && + GetExitCodeProcess(process->md.handle, exitCode) == FALSE) { + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; + } + CloseHandle(process->md.handle); + PR_DELETE(process); + return PR_SUCCESS; +} + +PRStatus _PR_KillWindowsProcess(PRProcess *process) +{ + /* + * On Unix, if a process terminates normally, its exit code is + * between 0 and 255. So here on Windows, we use the exit code + * 256 to indicate that the process is killed. + */ + if (TerminateProcess(process->md.handle, 256)) { + return PR_SUCCESS; + } + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; +} + +PRStatus _MD_WindowsGetHostName(char *name, PRUint32 namelen) +{ + PRIntn rv; + PRInt32 syserror; + + rv = gethostname(name, (PRInt32) namelen); + if (0 == rv) { + return PR_SUCCESS; + } + syserror = WSAGetLastError(); + PR_ASSERT(WSANOTINITIALISED != syserror); + _PR_MD_MAP_GETHOSTNAME_ERROR(syserror); + return PR_FAILURE; +} + +PRStatus _MD_WindowsGetSysInfo(PRSysInfo cmd, char *name, PRUint32 namelen) +{ + OSVERSIONINFO osvi; + + PR_ASSERT((cmd == PR_SI_SYSNAME) || (cmd == PR_SI_RELEASE)); + + ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); + osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + + if (! GetVersionEx (&osvi) ) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + + switch (osvi.dwPlatformId) { + case VER_PLATFORM_WIN32_NT: + if (PR_SI_SYSNAME == cmd) + (void)PR_snprintf(name, namelen, "Windows_NT"); + else if (PR_SI_RELEASE == cmd) + (void)PR_snprintf(name, namelen, "%d.%d",osvi.dwMajorVersion, + osvi.dwMinorVersion); + break; + case VER_PLATFORM_WIN32_WINDOWS: + if (PR_SI_SYSNAME == cmd) { + if ((osvi.dwMajorVersion > 4) || + ((osvi.dwMajorVersion == 4) && (osvi.dwMinorVersion > 0))) + (void)PR_snprintf(name, namelen, "Windows_98"); + else + (void)PR_snprintf(name, namelen, "Windows_95"); + } else if (PR_SI_RELEASE == cmd) { + (void)PR_snprintf(name, namelen, "%d.%d",osvi.dwMajorVersion, + osvi.dwMinorVersion); + } + break; +#ifdef VER_PLATFORM_WIN32_CE + case VER_PLATFORM_WIN32_CE: + if (PR_SI_SYSNAME == cmd) + (void)PR_snprintf(name, namelen, "Windows_CE"); + else if (PR_SI_RELEASE == cmd) + (void)PR_snprintf(name, namelen, "%d.%d",osvi.dwMajorVersion, + osvi.dwMinorVersion); + break; +#endif + default: + if (PR_SI_SYSNAME == cmd) + (void)PR_snprintf(name, namelen, "Windows_Unknown"); + else if (PR_SI_RELEASE == cmd) + (void)PR_snprintf(name, namelen, "%d.%d",0,0); + break; + } + return PR_SUCCESS; +} + +PRStatus _MD_WindowsGetReleaseName(char *name, PRUint32 namelen) +{ + OSVERSIONINFO osvi; + + ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); + osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + + if (! GetVersionEx (&osvi) ) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + + switch (osvi.dwPlatformId) { + case VER_PLATFORM_WIN32_NT: + case VER_PLATFORM_WIN32_WINDOWS: + (void)PR_snprintf(name, namelen, "%d.%d",osvi.dwMajorVersion, + osvi.dwMinorVersion); + break; + default: + (void)PR_snprintf(name, namelen, "%d.%d",0,0); + break; + } + return PR_SUCCESS; +} + +/* + ********************************************************************** + * + * Memory-mapped files + * + ********************************************************************** + */ + +PRStatus _MD_CreateFileMap(PRFileMap *fmap, PRInt64 size) +{ + DWORD dwHi, dwLo; + DWORD flProtect; + PROsfd osfd; + + osfd = ( fmap->fd == (PRFileDesc*)-1 )? -1 : fmap->fd->secret->md.osfd; + + dwLo = (DWORD) (size & 0xffffffff); + dwHi = (DWORD) (((PRUint64) size >> 32) & 0xffffffff); + + if (fmap->prot == PR_PROT_READONLY) { + flProtect = PAGE_READONLY; + fmap->md.dwAccess = FILE_MAP_READ; + } else if (fmap->prot == PR_PROT_READWRITE) { + flProtect = PAGE_READWRITE; + fmap->md.dwAccess = FILE_MAP_WRITE; + } else { + PR_ASSERT(fmap->prot == PR_PROT_WRITECOPY); +#ifdef WINCE + /* WINCE does not have FILE_MAP_COPY. */ + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +#else + flProtect = PAGE_WRITECOPY; + fmap->md.dwAccess = FILE_MAP_COPY; +#endif + } + + fmap->md.hFileMap = CreateFileMapping( + (HANDLE) osfd, + NULL, + flProtect, + dwHi, + dwLo, + NULL); + + if (fmap->md.hFileMap == NULL) { + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +PRInt32 _MD_GetMemMapAlignment(void) +{ + SYSTEM_INFO info; + GetSystemInfo(&info); + return info.dwAllocationGranularity; +} + +extern PRLogModuleInfo *_pr_shma_lm; + +void * _MD_MemMap( + PRFileMap *fmap, + PROffset64 offset, + PRUint32 len) +{ + DWORD dwHi, dwLo; + void *addr; + + dwLo = (DWORD) (offset & 0xffffffff); + dwHi = (DWORD) (((PRUint64) offset >> 32) & 0xffffffff); + if ((addr = MapViewOfFile(fmap->md.hFileMap, fmap->md.dwAccess, + dwHi, dwLo, len)) == NULL) { + { + LPVOID lpMsgBuf; + + FormatMessage( + FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, + NULL, + GetLastError(), + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language + (LPTSTR) &lpMsgBuf, + 0, + NULL + ); + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, ("md_memmap(): %s", lpMsgBuf )); + } + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + } + return addr; +} + +PRStatus _MD_MemUnmap(void *addr, PRUint32 len) +{ + if (UnmapViewOfFile(addr)) { + return PR_SUCCESS; + } else { + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; + } +} + +PRStatus _MD_CloseFileMap(PRFileMap *fmap) +{ + CloseHandle(fmap->md.hFileMap); + PR_DELETE(fmap); + return PR_SUCCESS; +} + +/* + *********************************************************************** + * + * Atomic increment and decrement operations for x86 processors + * + * We don't use InterlockedIncrement and InterlockedDecrement + * because on NT 3.51 and Win95, they return a number with + * the same sign as the incremented/decremented result, rather + * than the result itself. On NT 4.0 these functions do return + * the incremented/decremented result. + * + * The result is returned in the eax register by the inline + * assembly code. We disable the harmless "no return value" + * warning (4035) for these two functions. + * + *********************************************************************** + */ + +#if defined(_M_IX86) || defined(_X86_) + +#pragma warning(disable: 4035) +PRInt32 _PR_MD_ATOMIC_INCREMENT(PRInt32 *val) +{ +#if defined(__GNUC__) + PRInt32 result; + asm volatile ("lock ; xadd %0, %1" + : "=r"(result), "=m"(*val) + : "0"(1), "m"(*val)); + return result + 1; +#else + __asm + { + mov ecx, val + mov eax, 1 + lock xadd dword ptr [ecx], eax + inc eax + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#pragma warning(disable: 4035) +PRInt32 _PR_MD_ATOMIC_DECREMENT(PRInt32 *val) +{ +#if defined(__GNUC__) + PRInt32 result; + asm volatile ("lock ; xadd %0, %1" + : "=r"(result), "=m"(*val) + : "0"(-1), "m"(*val)); + //asm volatile("lock ; xadd %0, %1" : "=m" (val), "=a" (result) : "-1" (1)); + return result - 1; +#else + __asm + { + mov ecx, val + mov eax, 0ffffffffh + lock xadd dword ptr [ecx], eax + dec eax + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#pragma warning(disable: 4035) +PRInt32 _PR_MD_ATOMIC_ADD(PRInt32 *intp, PRInt32 val) +{ +#if defined(__GNUC__) + PRInt32 result; + //asm volatile("lock ; xadd %1, %0" : "=m" (intp), "=a" (result) : "1" (val)); + asm volatile ("lock ; xadd %0, %1" + : "=r"(result), "=m"(*intp) + : "0"(val), "m"(*intp)); + return result + val; +#else + __asm + { + mov ecx, intp + mov eax, val + mov edx, eax + lock xadd dword ptr [ecx], eax + add eax, edx + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#ifdef _PR_HAVE_ATOMIC_CAS + +#pragma warning(disable: 4035) +void +PR_StackPush(PRStack *stack, PRStackElem *stack_elem) +{ +#if defined(__GNUC__) + void **tos = (void **) stack; + void *tmp; + + retry: + if (*tos == (void *) -1) + goto retry; + + __asm__("xchg %0,%1" + : "=r" (tmp), "=m"(*tos) + : "0" (-1), "m"(*tos)); + + if (tmp == (void *) -1) + goto retry; + + *(void **)stack_elem = tmp; + __asm__("" : : : "memory"); + *tos = stack_elem; +#else + __asm + { + mov ebx, stack + mov ecx, stack_elem +retry: mov eax,[ebx] + cmp eax,-1 + je retry + mov eax,-1 + xchg dword ptr [ebx], eax + cmp eax,-1 + je retry + mov [ecx],eax + mov [ebx],ecx + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#pragma warning(disable: 4035) +PRStackElem * +PR_StackPop(PRStack *stack) +{ +#if defined(__GNUC__) + void **tos = (void **) stack; + void *tmp; + + retry: + if (*tos == (void *) -1) + goto retry; + + __asm__("xchg %0,%1" + : "=r" (tmp), "=m"(*tos) + : "0" (-1), "m"(*tos)); + + if (tmp == (void *) -1) + goto retry; + + if (tmp != (void *) 0) + { + void *next = *(void **)tmp; + *tos = next; + *(void **)tmp = 0; + } + else + *tos = tmp; + + return tmp; +#else + __asm + { + mov ebx, stack +retry: mov eax,[ebx] + cmp eax,-1 + je retry + mov eax,-1 + xchg dword ptr [ebx], eax + cmp eax,-1 + je retry + cmp eax,0 + je empty + mov ecx,[eax] + mov [ebx],ecx + mov [eax],0 + jmp done +empty: + mov [ebx],eax +done: + } +#endif /* __GNUC__ */ +} +#pragma warning(default: 4035) + +#endif /* _PR_HAVE_ATOMIC_CAS */ + +#endif /* x86 processors */ diff --git a/mozilla/nsprpub/pr/src/md/windows/ntsec.c b/mozilla/nsprpub/pr/src/md/windows/ntsec.c new file mode 100644 index 0000000..1acb6c4 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/ntsec.c @@ -0,0 +1,293 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "primpl.h" + +/* + * ntsec.c + * + * Implement the POSIX-style mode bits (access permissions) for + * files and other securable objects in Windows NT using Windows + * NT's security descriptors with appropriate discretionary + * access-control lists. + */ + +/* + * The security identifiers (SIDs) for owner, primary group, + * and the Everyone (World) group. + * + * These SIDs are looked up during NSPR initialization and + * saved in this global structure (see _PR_NT_InitSids) so + * that _PR_NT_MakeSecurityDescriptorACL doesn't need to + * look them up every time. + */ +static struct { + PSID owner; + PSID group; + PSID everyone; +} _pr_nt_sids; + +/* + * Initialize the SIDs for owner, primary group, and the Everyone + * group in the _pr_nt_sids structure. + * + * This function needs to be called by NSPR initialization. + */ +void _PR_NT_InitSids(void) +{ +#ifdef WINCE /* not supported */ + return; +#else + SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_WORLD_SID_AUTHORITY; + HANDLE hToken = NULL; /* initialized to an arbitrary value to + * silence a Purify UMR warning */ + PSID infoBuffer[1024/sizeof(PSID)]; /* defined as an array of PSIDs + * to force proper alignment */ + PTOKEN_OWNER pTokenOwner = (PTOKEN_OWNER) infoBuffer; + PTOKEN_PRIMARY_GROUP pTokenPrimaryGroup + = (PTOKEN_PRIMARY_GROUP) infoBuffer; + DWORD dwLength; + BOOL rv; + + /* + * Look up and make a copy of the owner and primary group + * SIDs in the access token of the calling process. + */ + rv = OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken); + if (rv == 0) { + /* + * On non-NT systems, this function is not implemented + * (error code ERROR_CALL_NOT_IMPLEMENTED), and neither are + * the other security functions. There is no point in + * going further. + * + * A process with insufficient access permissions may fail + * with the error code ERROR_ACCESS_DENIED. + */ + PR_LOG(_pr_io_lm, PR_LOG_DEBUG, + ("_PR_NT_InitSids: OpenProcessToken() failed. Error: %d", + GetLastError())); + return; + } + + rv = GetTokenInformation(hToken, TokenOwner, infoBuffer, + sizeof(infoBuffer), &dwLength); + PR_ASSERT(rv != 0); + dwLength = GetLengthSid(pTokenOwner->Owner); + _pr_nt_sids.owner = (PSID) PR_Malloc(dwLength); + PR_ASSERT(_pr_nt_sids.owner != NULL); + rv = CopySid(dwLength, _pr_nt_sids.owner, pTokenOwner->Owner); + PR_ASSERT(rv != 0); + + rv = GetTokenInformation(hToken, TokenPrimaryGroup, infoBuffer, + sizeof(infoBuffer), &dwLength); + PR_ASSERT(rv != 0); + dwLength = GetLengthSid(pTokenPrimaryGroup->PrimaryGroup); + _pr_nt_sids.group = (PSID) PR_Malloc(dwLength); + PR_ASSERT(_pr_nt_sids.group != NULL); + rv = CopySid(dwLength, _pr_nt_sids.group, + pTokenPrimaryGroup->PrimaryGroup); + PR_ASSERT(rv != 0); + + rv = CloseHandle(hToken); + PR_ASSERT(rv != 0); + + /* Create a well-known SID for the Everyone group. */ + rv = AllocateAndInitializeSid(&SIDAuthWorld, 1, + SECURITY_WORLD_RID, + 0, 0, 0, 0, 0, 0, 0, + &_pr_nt_sids.everyone); + PR_ASSERT(rv != 0); +#endif +} + +/* + * Free the SIDs for owner, primary group, and the Everyone group + * in the _pr_nt_sids structure. + * + * This function needs to be called by NSPR cleanup. + */ +void +_PR_NT_FreeSids(void) +{ +#ifdef WINCE + return; +#else + if (_pr_nt_sids.owner) { + PR_Free(_pr_nt_sids.owner); + } + if (_pr_nt_sids.group) { + PR_Free(_pr_nt_sids.group); + } + if (_pr_nt_sids.everyone) { + FreeSid(_pr_nt_sids.everyone); + } +#endif +} + +/* + * Construct a security descriptor whose discretionary access-control + * list implements the specified mode bits. The SIDs for owner, group, + * and everyone are obtained from the global _pr_nt_sids structure. + * Both the security descriptor and access-control list are returned + * and should be freed by a _PR_NT_FreeSecurityDescriptorACL call. + * + * The accessTable array maps NSPR's read, write, and execute access + * rights to the corresponding NT access rights for the securable + * object. + */ +PRStatus +_PR_NT_MakeSecurityDescriptorACL( + PRIntn mode, + DWORD accessTable[], + PSECURITY_DESCRIPTOR *resultSD, + PACL *resultACL) +{ +#ifdef WINCE + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +#else + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + DWORD cbACL; /* size of ACL */ + DWORD accessMask; + + if (_pr_nt_sids.owner == NULL) { + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; + } + + pSD = (PSECURITY_DESCRIPTOR) PR_Malloc(SECURITY_DESCRIPTOR_MIN_LENGTH); + if (pSD == NULL) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + if (!InitializeSecurityDescriptor(pSD, SECURITY_DESCRIPTOR_REVISION)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + if (!SetSecurityDescriptorOwner(pSD, _pr_nt_sids.owner, FALSE)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + if (!SetSecurityDescriptorGroup(pSD, _pr_nt_sids.group, FALSE)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + + /* + * Construct a discretionary access-control list with three + * access-control entries, one each for owner, primary group, + * and Everyone. + */ + + cbACL = sizeof(ACL) + + 3 * (sizeof(ACCESS_ALLOWED_ACE) - sizeof(DWORD)) + + GetLengthSid(_pr_nt_sids.owner) + + GetLengthSid(_pr_nt_sids.group) + + GetLengthSid(_pr_nt_sids.everyone); + pACL = (PACL) PR_Malloc(cbACL); + if (pACL == NULL) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + if (!InitializeAcl(pACL, cbACL, ACL_REVISION)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + accessMask = 0; + if (mode & 00400) accessMask |= accessTable[0]; + if (mode & 00200) accessMask |= accessTable[1]; + if (mode & 00100) accessMask |= accessTable[2]; + if (accessMask && !AddAccessAllowedAce(pACL, ACL_REVISION, accessMask, + _pr_nt_sids.owner)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + accessMask = 0; + if (mode & 00040) accessMask |= accessTable[0]; + if (mode & 00020) accessMask |= accessTable[1]; + if (mode & 00010) accessMask |= accessTable[2]; + if (accessMask && !AddAccessAllowedAce(pACL, ACL_REVISION, accessMask, + _pr_nt_sids.group)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + accessMask = 0; + if (mode & 00004) accessMask |= accessTable[0]; + if (mode & 00002) accessMask |= accessTable[1]; + if (mode & 00001) accessMask |= accessTable[2]; + if (accessMask && !AddAccessAllowedAce(pACL, ACL_REVISION, accessMask, + _pr_nt_sids.everyone)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + + if (!SetSecurityDescriptorDacl(pSD, TRUE, pACL, FALSE)) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + goto failed; + } + + *resultSD = pSD; + *resultACL = pACL; + return PR_SUCCESS; + +failed: + if (pSD) { + PR_Free(pSD); + } + if (pACL) { + PR_Free(pACL); + } + return PR_FAILURE; +#endif +} + +/* + * Free the specified security descriptor and access-control list + * previously created by _PR_NT_MakeSecurityDescriptorACL. + */ +void +_PR_NT_FreeSecurityDescriptorACL(PSECURITY_DESCRIPTOR pSD, PACL pACL) +{ + if (pSD) { + PR_Free(pSD); + } + if (pACL) { + PR_Free(pACL); + } +} diff --git a/mozilla/nsprpub/pr/src/md/windows/ntsem.c b/mozilla/nsprpub/pr/src/md/windows/ntsem.c new file mode 100644 index 0000000..b25fac6 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/ntsem.c @@ -0,0 +1,84 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * NT-specific semaphore handling code. + * + */ + + +#include "primpl.h" + + +void +_PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value) +{ + md->sem = CreateSemaphore(NULL, value, 0x7fffffff, NULL); +} + +void +_PR_MD_DESTROY_SEM(_MDSemaphore *md) +{ + CloseHandle(md->sem); +} + +PRStatus +_PR_MD_TIMED_WAIT_SEM(_MDSemaphore *md, PRIntervalTime ticks) +{ + int rv; + + rv = WaitForSingleObject(md->sem, PR_IntervalToMilliseconds(ticks)); + + if (rv == WAIT_OBJECT_0) + return PR_SUCCESS; + else + return PR_FAILURE; +} + +PRStatus +_PR_MD_WAIT_SEM(_MDSemaphore *md) +{ + return _PR_MD_TIMED_WAIT_SEM(md, PR_INTERVAL_NO_TIMEOUT); +} + +void +_PR_MD_POST_SEM(_MDSemaphore *md) +{ + int old_count; + + ReleaseSemaphore(md->sem, 1, &old_count); +} diff --git a/mozilla/nsprpub/pr/src/md/windows/ntthread.c b/mozilla/nsprpub/pr/src/md/windows/ntthread.c new file mode 100644 index 0000000..4c8fa62 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/ntthread.c @@ -0,0 +1,560 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "primpl.h" +#include <process.h> /* for _beginthreadex() */ + +/* --- globals ------------------------------------------------ */ +PRLock *_pr_schedLock = NULL; +_PRInterruptTable _pr_interruptTable[] = { { 0 } }; + +BOOL _pr_use_static_tls = TRUE; +__declspec(thread) PRThread *_pr_current_fiber; +__declspec(thread) PRThread *_pr_fiber_last_run; +__declspec(thread) _PRCPU *_pr_current_cpu; +__declspec(thread) PRUintn _pr_ints_off; +DWORD _pr_currentFiberIndex; +DWORD _pr_lastFiberIndex; +DWORD _pr_currentCPUIndex; +DWORD _pr_intsOffIndex; + +_MDLock _nt_idleLock; +PRCList _nt_idleList; +PRUint32 _nt_idleCount; + +extern __declspec(thread) PRThread *_pr_io_restarted_io; +extern DWORD _pr_io_restartedIOIndex; + +/* Must check the restarted_io *before* decrementing no_sched to 0 */ +#define POST_SWITCH_WORK() \ + PR_BEGIN_MACRO \ + PRThread *restarted_io = \ + (_pr_use_static_tls ? _pr_io_restarted_io \ + : (PRThread *) TlsGetValue(_pr_io_restartedIOIndex)); \ + if (restarted_io) { \ + _nt_handle_restarted_io(restarted_io); \ + } \ + _PR_MD_LAST_THREAD()->no_sched = 0; \ + PR_END_MACRO + +void +_nt_handle_restarted_io(PRThread *restarted_io) +{ + /* After the switch we can resume an IO if needed. + * XXXMB - this needs to be done in create thread, since that could + * be the result for a context switch too.. + */ + PR_ASSERT(restarted_io->io_suspended == PR_TRUE); + PR_ASSERT(restarted_io->md.thr_bound_cpu == restarted_io->cpu); + + _PR_THREAD_LOCK(restarted_io); + if (restarted_io->io_pending == PR_FALSE) { + + /* The IO already completed, put us back on the runq. */ + int pri = restarted_io->priority; + + restarted_io->state = _PR_RUNNABLE; + _PR_RUNQ_LOCK(restarted_io->cpu); + _PR_ADD_RUNQ(restarted_io, restarted_io->cpu, pri); + _PR_RUNQ_UNLOCK(restarted_io->cpu); + } else { + _PR_SLEEPQ_LOCK(restarted_io->cpu); + _PR_ADD_SLEEPQ(restarted_io, restarted_io->sleep); + _PR_SLEEPQ_UNLOCK(restarted_io->cpu); + } + restarted_io->io_suspended = PR_FALSE; + restarted_io->md.thr_bound_cpu = NULL; + + _PR_THREAD_UNLOCK(restarted_io); + + if (_pr_use_static_tls) { + _pr_io_restarted_io = NULL; + } else { + TlsSetValue(_pr_io_restartedIOIndex, NULL); + } +} + +void +_PR_MD_EARLY_INIT() +{ + _MD_NEW_LOCK( &_nt_idleLock ); + _nt_idleCount = 0; + PR_INIT_CLIST(&_nt_idleList); + +#if 0 + /* Make the clock tick at least once per millisecond */ + if ( timeBeginPeriod(1) == TIMERR_NOCANDO) { + /* deep yoghurt; clock doesn't tick fast enough! */ + PR_ASSERT(0); + } +#endif + + if (!_pr_use_static_tls) { + _pr_currentFiberIndex = TlsAlloc(); + _pr_lastFiberIndex = TlsAlloc(); + _pr_currentCPUIndex = TlsAlloc(); + _pr_intsOffIndex = TlsAlloc(); + _pr_io_restartedIOIndex = TlsAlloc(); + } +} + +void _PR_MD_CLEANUP_BEFORE_EXIT(void) +{ + _PR_NT_FreeSids(); + + WSACleanup(); + + if (!_pr_use_static_tls) { + TlsFree(_pr_currentFiberIndex); + TlsFree(_pr_lastFiberIndex); + TlsFree(_pr_currentCPUIndex); + TlsFree(_pr_intsOffIndex); + TlsFree(_pr_io_restartedIOIndex); + } +} + +PRStatus +_PR_MD_INIT_THREAD(PRThread *thread) +{ + thread->md.overlapped.ioModel = _MD_BlockingIO; + thread->md.overlapped.data.mdThread = &thread->md; + + if (thread->flags & _PR_GLOBAL_SCOPE) { + if (thread->flags & (_PR_PRIMORDIAL | _PR_ATTACHED)) { + /* + ** Warning: + ** -------- + ** NSPR requires a real handle to every thread. + ** GetCurrentThread() returns a pseudo-handle which + ** is not suitable for some thread operations (e.g., + ** suspending). Therefore, get a real handle from + ** the pseudo handle via DuplicateHandle(...) + */ + DuplicateHandle( + GetCurrentProcess(), /* Process of source handle */ + GetCurrentThread(), /* Pseudo Handle to dup */ + GetCurrentProcess(), /* Process of handle */ + &(thread->md.handle), /* resulting handle */ + 0L, /* access flags */ + FALSE, /* Inheritable */ + DUPLICATE_SAME_ACCESS); /* Options */ + } + + /* Create the blocking IO semaphore */ + thread->md.blocked_sema = CreateSemaphore(NULL, 0, 1, NULL); + if (thread->md.blocked_sema == NULL) { + return PR_FAILURE; + } + if (_native_threads_only) { + /* Create the blocking IO semaphore */ + thread->md.thr_event = CreateEvent(NULL, TRUE, FALSE, NULL); + if (thread->md.thr_event == NULL) { + return PR_FAILURE; + } + } + } + + return PR_SUCCESS; +} + +static unsigned __stdcall +pr_root(void *arg) +{ + PRThread *thread = (PRThread *)arg; + thread->md.start(thread); + return 0; +} + +PRStatus +_PR_MD_CREATE_THREAD(PRThread *thread, + void (*start)(void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + + thread->md.start = start; + thread->md.handle = (HANDLE) _beginthreadex( + NULL, + thread->stack->stackSize, + pr_root, + (void *)thread, + CREATE_SUSPENDED, + &(thread->id)); + if(!thread->md.handle) { + PRErrorCode prerror; + thread->md.fiber_last_error = GetLastError(); + switch (errno) { + case ENOMEM: + prerror = PR_OUT_OF_MEMORY_ERROR; + break; + case EAGAIN: + prerror = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case EINVAL: + prerror = PR_INVALID_ARGUMENT_ERROR; + break; + default: + prerror = PR_UNKNOWN_ERROR; + } + PR_SetError(prerror, errno); + return PR_FAILURE; + } + + thread->md.id = thread->id; + /* + * On windows, a thread is created with a thread priority of + * THREAD_PRIORITY_NORMAL. + */ + if (priority != PR_PRIORITY_NORMAL) { + _PR_MD_SET_PRIORITY(&(thread->md), priority); + } + + /* Activate the thread */ + if ( ResumeThread( thread->md.handle ) != -1) + return PR_SUCCESS; + + PR_SetError(PR_UNKNOWN_ERROR, GetLastError()); + return PR_FAILURE; +} + +void +_PR_MD_JOIN_THREAD(_MDThread *md) +{ + DWORD rv; + + rv = WaitForSingleObject(md->handle, INFINITE); + PR_ASSERT(WAIT_OBJECT_0 == rv); +} + +void +_PR_MD_END_THREAD(void) +{ + _endthreadex(0); +} + +void +_PR_MD_YIELD(void) +{ + /* Can NT really yield at all? */ + Sleep(0); +} + +void +_PR_MD_SET_PRIORITY(_MDThread *thread, PRThreadPriority newPri) +{ + int nativePri; + BOOL rv; + + if (newPri < PR_PRIORITY_FIRST) { + newPri = PR_PRIORITY_FIRST; + } else if (newPri > PR_PRIORITY_LAST) { + newPri = PR_PRIORITY_LAST; + } + switch (newPri) { + case PR_PRIORITY_LOW: + nativePri = THREAD_PRIORITY_BELOW_NORMAL; + break; + case PR_PRIORITY_NORMAL: + nativePri = THREAD_PRIORITY_NORMAL; + break; + case PR_PRIORITY_HIGH: + nativePri = THREAD_PRIORITY_ABOVE_NORMAL; + break; + case PR_PRIORITY_URGENT: + nativePri = THREAD_PRIORITY_HIGHEST; + } + rv = SetThreadPriority(thread->handle, nativePri); + PR_ASSERT(rv); + if (!rv) { + PR_LOG(_pr_thread_lm, PR_LOG_MIN, + ("PR_SetThreadPriority: can't set thread priority\n")); + } + return; +} + +void +_PR_MD_CLEAN_THREAD(PRThread *thread) +{ + BOOL rv; + + if (thread->md.acceptex_buf) { + PR_DELETE(thread->md.acceptex_buf); + } + + if (thread->md.xmit_bufs) { + PR_DELETE(thread->md.xmit_bufs); + } + + if (thread->md.blocked_sema) { + rv = CloseHandle(thread->md.blocked_sema); + PR_ASSERT(rv); + thread->md.blocked_sema = 0; + } + if (_native_threads_only) { + if (thread->md.thr_event) { + rv = CloseHandle(thread->md.thr_event); + PR_ASSERT(rv); + thread->md.thr_event = 0; + } + } + + if (thread->md.handle) { + rv = CloseHandle(thread->md.handle); + PR_ASSERT(rv); + thread->md.handle = 0; + } + + /* Don't call DeleteFiber on current fiber or we'll kill the whole thread. + * Don't call free(thread) until we've switched off the thread. + * So put this fiber (or thread) on a list to be deleted by the idle + * fiber next time we have a chance. + */ + if (!(thread->flags & (_PR_ATTACHED|_PR_GLOBAL_SCOPE))) { + _MD_LOCK(&_nt_idleLock); + _nt_idleCount++; + PR_APPEND_LINK(&thread->links, &_nt_idleList); + _MD_UNLOCK(&_nt_idleLock); + } +} + +void +_PR_MD_EXIT_THREAD(PRThread *thread) +{ + BOOL rv; + + if (thread->md.acceptex_buf) { + PR_DELETE(thread->md.acceptex_buf); + } + + if (thread->md.xmit_bufs) { + PR_DELETE(thread->md.xmit_bufs); + } + + if (thread->md.blocked_sema) { + rv = CloseHandle(thread->md.blocked_sema); + PR_ASSERT(rv); + thread->md.blocked_sema = 0; + } + + if (_native_threads_only) { + if (thread->md.thr_event) { + rv = CloseHandle(thread->md.thr_event); + PR_ASSERT(rv); + thread->md.thr_event = 0; + } + } + + if (thread->md.handle) { + rv = CloseHandle(thread->md.handle); + PR_ASSERT(rv); + thread->md.handle = 0; + } + + if (thread->flags & _PR_GLOBAL_SCOPE) { + _MD_SET_CURRENT_THREAD(NULL); + } +} + + +void +_PR_MD_EXIT(PRIntn status) +{ + _exit(status); +} + +#ifdef HAVE_FIBERS + +void +_pr_fiber_mainline(void *unused) +{ + PRThread *fiber = _PR_MD_CURRENT_THREAD(); + + POST_SWITCH_WORK(); + + fiber->md.fiber_fn(fiber->md.fiber_arg); +} + +PRThread *_PR_MD_CREATE_USER_THREAD( + PRUint32 stacksize, void (*start)(void *), void *arg) +{ + PRThread *thread; + + if ( (thread = PR_NEW(PRThread)) == NULL ) { + return NULL; + } + + memset(thread, 0, sizeof(PRThread)); + thread->md.fiber_fn = start; + thread->md.fiber_arg = arg; + thread->md.fiber_stacksize = stacksize; + return thread; +} + +void +_PR_MD_CREATE_PRIMORDIAL_USER_THREAD(PRThread *thread) +{ + thread->md.fiber_id = ConvertThreadToFiber(NULL); + PR_ASSERT(thread->md.fiber_id); + _MD_SET_CURRENT_THREAD(thread); + _MD_SET_LAST_THREAD(thread); + thread->no_sched = 1; + return; +} + +void +_PR_MD_INIT_CONTEXT(PRThread *thread, char *top, void (*start) (void), PRBool *status) +{ + thread->md.fiber_fn = (void (*)(void *))start; + thread->md.fiber_id = CreateFiber(thread->md.fiber_stacksize, + (LPFIBER_START_ROUTINE)_pr_fiber_mainline, NULL); + if (thread->md.fiber_id != 0) + *status = PR_TRUE; + else { + DWORD oserror = GetLastError(); + PRErrorCode prerror; + if (oserror == ERROR_NOT_ENOUGH_MEMORY) { + prerror = PR_OUT_OF_MEMORY_ERROR; + } else { + prerror = PR_UNKNOWN_ERROR; + } + PR_SetError(prerror, oserror); + *status = PR_FALSE; + } +} + +void +_PR_MD_SWITCH_CONTEXT(PRThread *thread) +{ + PR_ASSERT( !_PR_IS_NATIVE_THREAD(thread) ); + + thread->md.fiber_last_error = GetLastError(); + _PR_Schedule(); +} + +void +_PR_MD_RESTORE_CONTEXT(PRThread *thread) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + + PR_ASSERT( !_PR_IS_NATIVE_THREAD(thread) ); + + /* The user-level code for yielding will happily add ourselves to the runq + * and then switch to ourselves; the NT fibers can't handle switching to + * ourselves. + */ + if (thread != me) { + SetLastError(thread->md.fiber_last_error); + _MD_SET_CURRENT_THREAD(thread); + _PR_MD_SET_LAST_THREAD(me); + thread->no_sched = 1; + SwitchToFiber(thread->md.fiber_id); + POST_SWITCH_WORK(); + } +} + + +#endif /* HAVE_FIBERS */ + +PRInt32 _PR_MD_SETTHREADAFFINITYMASK(PRThread *thread, PRUint32 mask ) +{ + int rv; + + rv = SetThreadAffinityMask(thread->md.handle, mask); + + return rv?0:-1; +} + +PRInt32 _PR_MD_GETTHREADAFFINITYMASK(PRThread *thread, PRUint32 *mask) +{ + PRInt32 rv, system_mask; + + rv = GetProcessAffinityMask(GetCurrentProcess(), mask, &system_mask); + + return rv?0:-1; +} + +void +_PR_MD_SUSPEND_CPU(_PRCPU *cpu) +{ + _PR_MD_SUSPEND_THREAD(cpu->thread); +} + +void +_PR_MD_RESUME_CPU(_PRCPU *cpu) +{ + _PR_MD_RESUME_THREAD(cpu->thread); +} + +void +_PR_MD_SUSPEND_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + /* + ** There seems to be some doubt about whether or not SuspendThread + ** is a synchronous function. The test afterwards is to help veriry + ** that it is, which is what Microsoft says it is. + */ + PRUintn rv = SuspendThread(thread->md.handle); + PR_ASSERT(0xffffffffUL != rv); + } +} + +void +_PR_MD_RESUME_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + ResumeThread(thread->md.handle); + } +} + +PRThread* +_MD_CURRENT_THREAD(void) +{ +PRThread *thread; + + thread = _MD_GET_ATTACHED_THREAD(); + + if (NULL == thread) { + thread = _PRI_AttachThread( + PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL, 0); + } + PR_ASSERT(thread != NULL); + return thread; +} + diff --git a/mozilla/nsprpub/pr/src/md/windows/objs.mk b/mozilla/nsprpub/pr/src/md/windows/objs.mk new file mode 100644 index 0000000..82ee36e --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/objs.mk @@ -0,0 +1,80 @@ +# +# ***** BEGIN LICENSE BLOCK ***** +# Version: MPL 1.1/GPL 2.0/LGPL 2.1 +# +# The contents of this file are subject to the Mozilla Public License Version +# 1.1 (the "License"); you may not use this file except in compliance with +# the License. You may obtain a copy of the License at +# http://www.mozilla.org/MPL/ +# +# Software distributed under the License is distributed on an "AS IS" basis, +# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License +# for the specific language governing rights and limitations under the +# License. +# +# The Original Code is the Netscape Portable Runtime (NSPR). +# +# The Initial Developer of the Original Code is +# Netscape Communications Corporation. +# Portions created by the Initial Developer are Copyright (C) 1998-2000 +# the Initial Developer. All Rights Reserved. +# +# Contributor(s): +# +# Alternatively, the contents of this file may be used under the terms of +# either the GNU General Public License Version 2 or later (the "GPL"), or +# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), +# in which case the provisions of the GPL or the LGPL are applicable instead +# of those above. If you wish to allow use of your version of this file only +# under the terms of either the GPL or the LGPL, and not to allow others to +# use your version of this file under the terms of the MPL, indicate your +# decision by deleting the provisions above and replace them with the notice +# and other provisions required by the GPL or the LGPL. If you do not delete +# the provisions above, a recipient may use your version of this file under +# the terms of any one of the MPL, the GPL or the LGPL. +# +# ***** END LICENSE BLOCK ***** + + +ifeq ($(OS_TARGET),WINNT) +CSRCS = ntmisc.c \ + ntsec.c \ + ntsem.c \ + ntinrval.c \ + ntgc.c \ + ntio.c \ + ntthread.c \ + ntdllmn.c \ + win32_errors.c \ + w32ipcsem.c \ + w32poll.c \ + w32rng.c \ + w32shm.c +else +ifeq (,$(filter-out WIN95 WINCE WINMO, $(OS_TARGET))) +CSRCS = ntmisc.c \ + ntsec.c \ + ntsem.c \ + ntinrval.c \ + ntgc.c \ + w95thred.c \ + w95io.c \ + w95cv.c \ + w95sock.c \ + win32_errors.c \ + w32ipcsem.c \ + w32poll.c \ + w32rng.c \ + w32shm.c \ + w95dllmain.c +else +endif # win95 +endif # winnt + +CSRCS += $(PR_MD_CSRCS) +ASFILES += $(PR_MD_ASFILES) + +OBJS += $(addprefix md/windows/$(OBJDIR)/,$(CSRCS:.c=.$(OBJ_SUFFIX))) \ + $(addprefix md/windows/$(OBJDIR)/,$(ASFILES:.s=.$(OBJ_SUFFIX))) + + diff --git a/mozilla/nsprpub/pr/src/md/windows/w32ipcsem.c b/mozilla/nsprpub/pr/src/md/windows/w32ipcsem.c new file mode 100644 index 0000000..443cd7f --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w32ipcsem.c @@ -0,0 +1,260 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1999-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * File: w32ipcsem.c + * Description: implements named semaphores for NT and WIN95. + */ + +#include "primpl.h" + +#ifdef WINCE +static HANDLE OpenSemaphore(DWORD inDesiredAccess, + BOOL inInheritHandle, + const char *inName) +{ + HANDLE retval = NULL; + HANDLE semaphore = NULL; + PRUnichar wideName[MAX_PATH]; /* name size is limited to MAX_PATH */ + + MultiByteToWideChar(CP_ACP, 0, inName, -1, wideName, MAX_PATH); + /* 0x7fffffff is the max count for our semaphore */ + semaphore = CreateSemaphoreW(NULL, 0, 0x7fffffff, wideName); + if (NULL != semaphore) { + DWORD lastErr = GetLastError(); + + if (ERROR_ALREADY_EXISTS != lastErr) + CloseHandle(semaphore); + else + retval = semaphore; + } + return retval; +} +#endif + +/* + * NSPR-to-NT access right mapping table for semaphore objects. + * + * The SYNCHRONIZE access is required by WaitForSingleObject. + * The SEMAPHORE_MODIFY_STATE access is required by ReleaseSemaphore. + * The OR of these three access masks must equal SEMAPHORE_ALL_ACCESS. + * This is because if a semaphore object with the specified name + * exists, CreateSemaphore requests SEMAPHORE_ALL_ACCESS access to + * the existing object. + */ +static DWORD semAccessTable[] = { + STANDARD_RIGHTS_REQUIRED|0x1, /* read (0x1 is "query state") */ + STANDARD_RIGHTS_REQUIRED|SYNCHRONIZE|SEMAPHORE_MODIFY_STATE, /* write */ + 0 /* execute */ +}; + +#ifndef _PR_GLOBAL_THREADS_ONLY + +/* + * A fiber cannot call WaitForSingleObject because that + * will block the other fibers running on the same thread. + * If a fiber needs to wait on a (semaphore) handle, we + * create a native thread to call WaitForSingleObject and + * have the fiber join the native thread. + */ + +/* + * Arguments, return value, and error code for WaitForSingleObject + */ +struct WaitSingleArg { + HANDLE handle; + DWORD timeout; + DWORD rv; + DWORD error; +}; + +static void WaitSingleThread(void *arg) +{ + struct WaitSingleArg *warg = (struct WaitSingleArg *) arg; + + warg->rv = WaitForSingleObject(warg->handle, warg->timeout); + if (warg->rv == WAIT_FAILED) { + warg->error = GetLastError(); + } +} + +static DWORD FiberSafeWaitForSingleObject( + HANDLE hHandle, + DWORD dwMilliseconds +) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + + if (_PR_IS_NATIVE_THREAD(me)) { + return WaitForSingleObject(hHandle, dwMilliseconds); + } else { + PRThread *waitThread; + struct WaitSingleArg warg; + PRStatus rv; + + warg.handle = hHandle; + warg.timeout = dwMilliseconds; + waitThread = PR_CreateThread( + PR_USER_THREAD, WaitSingleThread, &warg, + PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); + if (waitThread == NULL) { + return WAIT_FAILED; + } + + rv = PR_JoinThread(waitThread); + PR_ASSERT(rv == PR_SUCCESS); + if (rv == PR_FAILURE) { + return WAIT_FAILED; + } + if (warg.rv == WAIT_FAILED) { + SetLastError(warg.error); + } + return warg.rv; + } +} + +#endif /* !_PR_GLOBAL_THREADS_ONLY */ + +PRSem *_PR_MD_OPEN_SEMAPHORE( + const char *osname, PRIntn flags, PRIntn mode, PRUintn value) +{ + PRSem *sem; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + sem = PR_NEW(PRSem); + if (sem == NULL) { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); + return NULL; + } + if (flags & PR_SEM_CREATE) { + if (_PR_NT_MakeSecurityDescriptorACL(mode, semAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } +#ifdef WINCE + { + /* The size of a sem's name is limited to MAX_PATH. */ + PRUnichar wosname[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, osname, -1, wosname, MAX_PATH); + sem->sem = CreateSemaphoreW(lpSA, value, 0x7fffffff, wosname); + } +#else + sem->sem = CreateSemaphoreA(lpSA, value, 0x7fffffff, osname); +#endif + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (sem->sem == NULL) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + PR_DELETE(sem); + return NULL; + } + if ((flags & PR_SEM_EXCL) && (GetLastError() == ERROR_ALREADY_EXISTS)) { + PR_SetError(PR_FILE_EXISTS_ERROR, ERROR_ALREADY_EXISTS); + CloseHandle(sem->sem); + PR_DELETE(sem); + return NULL; + } + } else { + sem->sem = OpenSemaphore( + SEMAPHORE_MODIFY_STATE|SYNCHRONIZE, FALSE, osname); + if (sem->sem == NULL) { + DWORD err = GetLastError(); + + /* + * If we open a nonexistent named semaphore, NT + * returns ERROR_FILE_NOT_FOUND, while Win95 + * returns ERROR_INVALID_NAME + */ + if (err == ERROR_INVALID_NAME) { + PR_SetError(PR_FILE_NOT_FOUND_ERROR, err); + } else { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + } + PR_DELETE(sem); + return NULL; + } + } + return sem; +} + +PRStatus _PR_MD_WAIT_SEMAPHORE(PRSem *sem) +{ + DWORD rv; + +#ifdef _PR_GLOBAL_THREADS_ONLY + rv = WaitForSingleObject(sem->sem, INFINITE); +#else + rv = FiberSafeWaitForSingleObject(sem->sem, INFINITE); +#endif + PR_ASSERT(rv == WAIT_FAILED || rv == WAIT_OBJECT_0); + if (rv == WAIT_FAILED) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + if (rv != WAIT_OBJECT_0) { + /* Should not happen */ + PR_SetError(PR_UNKNOWN_ERROR, 0); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +PRStatus _PR_MD_POST_SEMAPHORE(PRSem *sem) +{ + if (ReleaseSemaphore(sem->sem, 1, NULL) == FALSE) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + return PR_SUCCESS; +} + +PRStatus _PR_MD_CLOSE_SEMAPHORE(PRSem *sem) +{ + if (CloseHandle(sem->sem) == FALSE) { + _PR_MD_MAP_CLOSE_ERROR(GetLastError()); + return PR_FAILURE; + } + PR_DELETE(sem); + return PR_SUCCESS; +} diff --git a/mozilla/nsprpub/pr/src/md/windows/w32poll.c b/mozilla/nsprpub/pr/src/md/windows/w32poll.c new file mode 100644 index 0000000..2caaac2 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w32poll.c @@ -0,0 +1,357 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * This file implements _PR_MD_PR_POLL for Win32. + */ + +/* The default value of FD_SETSIZE is 64. */ +#define FD_SETSIZE 1024 + +#include "primpl.h" + +#if !defined(_PR_GLOBAL_THREADS_ONLY) + +struct select_data_s { + PRInt32 status; + PRInt32 error; + fd_set *rd, *wt, *ex; + const struct timeval *tv; +}; + +static void +_PR_MD_select_thread(void *cdata) +{ + struct select_data_s *cd = (struct select_data_s *)cdata; + + cd->status = select(0, cd->rd, cd->wt, cd->ex, cd->tv); + + if (cd->status == SOCKET_ERROR) { + cd->error = WSAGetLastError(); + } +} + +int _PR_NTFiberSafeSelect( + int nfds, + fd_set *readfds, + fd_set *writefds, + fd_set *exceptfds, + const struct timeval *timeout) +{ + PRThread *me = _PR_MD_CURRENT_THREAD(); + int ready; + + if (_PR_IS_NATIVE_THREAD(me)) { + ready = _MD_SELECT(nfds, readfds, writefds, exceptfds, timeout); + } + else + { + /* + ** Creating a new thread on each call!! + ** I guess web server doesn't use non-block I/O. + */ + PRThread *selectThread; + struct select_data_s data; + data.status = 0; + data.error = 0; + data.rd = readfds; + data.wt = writefds; + data.ex = exceptfds; + data.tv = timeout; + + selectThread = PR_CreateThread( + PR_USER_THREAD, _PR_MD_select_thread, &data, + PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD, PR_JOINABLE_THREAD, 0); + if (selectThread == NULL) return -1; + + PR_JoinThread(selectThread); + ready = data.status; + if (ready == SOCKET_ERROR) WSASetLastError(data.error); + } + return ready; +} + +#endif /* !defined(_PR_GLOBAL_THREADS_ONLY) */ + +PRInt32 _PR_MD_PR_POLL(PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout) +{ + int ready, err; + fd_set rd, wt, ex; + fd_set *rdp, *wtp, *exp; + int nrd, nwt, nex; + PRFileDesc *bottom; + PRPollDesc *pd, *epd; + PRThread *me = _PR_MD_CURRENT_THREAD(); + + struct timeval tv, *tvp = NULL; + + if (_PR_PENDING_INTERRUPT(me)) + { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + return -1; + } + + /* + ** Is it an empty set? If so, just sleep for the timeout and return + */ + if (0 == npds) + { + PR_Sleep(timeout); + return 0; + } + + nrd = nwt = nex = 0; + FD_ZERO(&rd); + FD_ZERO(&wt); + FD_ZERO(&ex); + + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + SOCKET osfd; + PRInt16 in_flags_read = 0, in_flags_write = 0; + PRInt16 out_flags_read = 0, out_flags_write = 0; + + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + if (pd->in_flags & PR_POLL_READ) + { + in_flags_read = (pd->fd->methods->poll)( + pd->fd, (PRInt16)(pd->in_flags & ~PR_POLL_WRITE), + &out_flags_read); + } + if (pd->in_flags & PR_POLL_WRITE) + { + in_flags_write = (pd->fd->methods->poll)( + pd->fd, (PRInt16)(pd->in_flags & ~PR_POLL_READ), + &out_flags_write); + } + if ((0 != (in_flags_read & out_flags_read)) + || (0 != (in_flags_write & out_flags_write))) + { + /* this one's ready right now (buffered input) */ + if (0 == ready) + { + /* + * We will have to return without calling the + * system poll/select function. So zero the + * out_flags fields of all the poll descriptors + * before this one. + */ + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; + pd->out_flags = out_flags_read | out_flags_write; + } + else + { + pd->out_flags = 0; /* pre-condition */ + /* make sure this is an NSPR supported stack */ + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); /* what to do about that? */ + if ((NULL != bottom) + && (_PR_FILEDESC_OPEN == bottom->secret->state)) + { + if (0 == ready) + { + osfd = (SOCKET) bottom->secret->md.osfd; + if (in_flags_read & PR_POLL_READ) + { + pd->out_flags |= _PR_POLL_READ_SYS_READ; + FD_SET(osfd, &rd); + nrd++; + } + if (in_flags_read & PR_POLL_WRITE) + { + pd->out_flags |= _PR_POLL_READ_SYS_WRITE; + FD_SET(osfd, &wt); + nwt++; + } + if (in_flags_write & PR_POLL_READ) + { + pd->out_flags |= _PR_POLL_WRITE_SYS_READ; + FD_SET(osfd, &rd); + nrd++; + } + if (in_flags_write & PR_POLL_WRITE) + { + pd->out_flags |= _PR_POLL_WRITE_SYS_WRITE; + FD_SET(osfd, &wt); + nwt++; + } + if (pd->in_flags & PR_POLL_EXCEPT) { + FD_SET(osfd, &ex); + nex++; + } + } + } + else + { + if (0 == ready) + { + PRPollDesc *prev; + for (prev = pds; prev < pd; prev++) + { + prev->out_flags = 0; + } + } + ready += 1; /* this will cause an abrupt return */ + pd->out_flags = PR_POLL_NVAL; /* bogii */ + } + } + } + else + { + pd->out_flags = 0; + } + } + + if (0 != ready) return ready; /* no need to block */ + + /* + * FD_SET does nothing if the fd_set's internal fd_array is full. If + * nrd, nwt, or nex is greater than FD_SETSIZE, we know FD_SET must + * have failed to insert an osfd into the corresponding fd_set, and + * therefore we should fail. + */ + if ((nrd > FD_SETSIZE) || (nwt > FD_SETSIZE) || (nex > FD_SETSIZE)) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + rdp = (0 == nrd) ? NULL : &rd; + wtp = (0 == nwt) ? NULL : &wt; + exp = (0 == nex) ? NULL : &ex; + + if ((NULL == rdp) && (NULL == wtp) && (NULL == exp)) { + PR_Sleep(timeout); + return 0; + } + + if (timeout != PR_INTERVAL_NO_TIMEOUT) + { + PRInt32 ticksPerSecond = PR_TicksPerSecond(); + tv.tv_sec = timeout / ticksPerSecond; + tv.tv_usec = PR_IntervalToMicroseconds( timeout % ticksPerSecond ); + tvp = &tv; + } + +#if defined(_PR_GLOBAL_THREADS_ONLY) + ready = _MD_SELECT(0, rdp, wtp, exp, tvp); +#else + ready = _PR_NTFiberSafeSelect(0, rdp, wtp, exp, tvp); +#endif + + /* + ** Now to unravel the select sets back into the client's poll + ** descriptor list. Is this possibly an area for pissing away + ** a few cycles or what? + */ + if (ready > 0) + { + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + PRInt16 out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + SOCKET osfd; + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + PR_ASSERT(NULL != bottom); + + osfd = (SOCKET) bottom->secret->md.osfd; + + if (FD_ISSET(osfd, &rd)) + { + if (pd->out_flags & _PR_POLL_READ_SYS_READ) + out_flags |= PR_POLL_READ; + if (pd->out_flags & _PR_POLL_WRITE_SYS_READ) + out_flags |= PR_POLL_WRITE; + } + if (FD_ISSET(osfd, &wt)) + { + if (pd->out_flags & _PR_POLL_READ_SYS_WRITE) + out_flags |= PR_POLL_READ; + if (pd->out_flags & _PR_POLL_WRITE_SYS_WRITE) + out_flags |= PR_POLL_WRITE; + } + if (FD_ISSET(osfd, &ex)) out_flags |= PR_POLL_EXCEPT; + } + pd->out_flags = out_flags; + if (out_flags) ready++; + } + PR_ASSERT(ready > 0); + } + else if (ready == SOCKET_ERROR) + { + err = WSAGetLastError(); + if (err == WSAENOTSOCK) + { + /* Find the bad fds */ + int optval; + int optlen = sizeof(optval); + ready = 0; + for (pd = pds, epd = pd + npds; pd < epd; pd++) + { + pd->out_flags = 0; + if ((NULL != pd->fd) && (0 != pd->in_flags)) + { + bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER); + if (getsockopt(bottom->secret->md.osfd, SOL_SOCKET, + SO_TYPE, (char *) &optval, &optlen) == -1) + { + PR_ASSERT(WSAGetLastError() == WSAENOTSOCK); + if (WSAGetLastError() == WSAENOTSOCK) + { + pd->out_flags = PR_POLL_NVAL; + ready++; + } + } + } + } + PR_ASSERT(ready > 0); + } + else _PR_MD_MAP_SELECT_ERROR(err); + } + + return ready; +} diff --git a/mozilla/nsprpub/pr/src/md/windows/w32rng.c b/mozilla/nsprpub/pr/src/md/windows/w32rng.c new file mode 100644 index 0000000..5232b5f --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w32rng.c @@ -0,0 +1,107 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1999-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include <windows.h> +#include <time.h> +#include <io.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <stdio.h> +#include <primpl.h> + +static BOOL +CurrentClockTickTime(LPDWORD lpdwHigh, LPDWORD lpdwLow) +{ + LARGE_INTEGER liCount; + + if (!QueryPerformanceCounter(&liCount)) + return FALSE; + + *lpdwHigh = liCount.u.HighPart; + *lpdwLow = liCount.u.LowPart; + return TRUE; +} + +extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size ) +{ + DWORD dwHigh, dwLow, dwVal; + size_t n = 0; + size_t nBytes; + time_t sTime; + + if (size <= 0) + return 0; + + CurrentClockTickTime(&dwHigh, &dwLow); + + // get the maximally changing bits first + nBytes = sizeof(dwLow) > size ? size : sizeof(dwLow); + memcpy((char *)buf, &dwLow, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) + return n; + + nBytes = sizeof(dwHigh) > size ? size : sizeof(dwHigh); + memcpy(((char *)buf) + n, &dwHigh, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) + return n; + + // get the number of milliseconds that have elapsed since Windows started + dwVal = GetTickCount(); + + nBytes = sizeof(dwVal) > size ? size : sizeof(dwVal); + memcpy(((char *)buf) + n, &dwVal, nBytes); + n += nBytes; + size -= nBytes; + + if (size <= 0) + return n; + + // get the time in seconds since midnight Jan 1, 1970 + time(&sTime); + nBytes = sizeof(sTime) > size ? size : sizeof(sTime); + memcpy(((char *)buf) + n, &sTime, nBytes); + n += nBytes; + + return n; +} + diff --git a/mozilla/nsprpub/pr/src/md/windows/w32shm.c b/mozilla/nsprpub/pr/src/md/windows/w32shm.c new file mode 100644 index 0000000..e34a436 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w32shm.c @@ -0,0 +1,379 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include <private/primpl.h> +#include <string.h> +#include <prshm.h> +#include <prerr.h> +#include <prmem.h> + +#if defined(PR_HAVE_WIN32_NAMED_SHARED_MEMORY) + +extern PRLogModuleInfo *_pr_shm_lm; + +/* + * NSPR-to-NT access right mapping table for file-mapping objects. + * + * The OR of these three access masks must equal FILE_MAP_ALL_ACCESS. + * This is because if a file-mapping object with the specified name + * exists, CreateFileMapping requests full access to the existing + * object. + */ +static DWORD filemapAccessTable[] = { + FILE_MAP_ALL_ACCESS & ~FILE_MAP_WRITE, /* read */ + FILE_MAP_ALL_ACCESS & ~FILE_MAP_READ, /* write */ + 0 /* execute */ +}; + +extern PRSharedMemory * _MD_OpenSharedMemory( + const char *name, + PRSize size, + PRIntn flags, + PRIntn mode +) +{ + char ipcname[PR_IPC_NAME_SIZE]; + PRStatus rc = PR_SUCCESS; + DWORD dwHi, dwLo; + PRSharedMemory *shm; + DWORD flProtect = ( PAGE_READWRITE ); + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + rc = _PR_MakeNativeIPCName( name, ipcname, PR_IPC_NAME_SIZE, _PRIPCShm ); + if ( PR_FAILURE == rc ) + { + PR_SetError(PR_UNKNOWN_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: name is invalid")); + return(NULL); + } + + shm = PR_NEWZAP( PRSharedMemory ); + if ( NULL == shm ) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New PRSharedMemory out of memory")); + return(NULL); + } + + shm->ipcname = PR_MALLOC( (PRUint32) (strlen( ipcname ) + 1) ); + if ( NULL == shm->ipcname ) + { + PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0 ); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, ( "PR_OpenSharedMemory: New shm->ipcname out of memory")); + PR_DELETE(shm); + return(NULL); + } + + /* copy args to struct */ + strcpy( shm->ipcname, ipcname ); + shm->size = size; + shm->mode = mode; + shm->flags = flags; + shm->ident = _PR_SHM_IDENT; + + if (flags & PR_SHM_CREATE ) { + dwHi = (DWORD) (((PRUint64) shm->size >> 32) & 0xffffffff); + dwLo = (DWORD) (shm->size & 0xffffffff); + + if (_PR_NT_MakeSecurityDescriptorACL(mode, filemapAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } +#ifdef WINCE + { + /* + * This is assuming that the name will never be larger than + * MAX_PATH. Should we dynamically allocate? + */ + PRUnichar wideIpcName[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, shm->ipcname, -1, + wideIpcName, MAX_PATH); + shm->handle = CreateFileMappingW( + (HANDLE)-1 , + lpSA, + flProtect, + dwHi, + dwLo, + wideIpcName); + } +#else + shm->handle = CreateFileMappingA( + (HANDLE)-1 , + lpSA, + flProtect, + dwHi, + dwLo, + shm->ipcname); +#endif + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + + if ( NULL == shm->handle ) { + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: CreateFileMapping() failed: %s", + shm->ipcname )); + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_FREEIF( shm->ipcname ) + PR_DELETE( shm ); + return(NULL); + } else { + if (( flags & PR_SHM_EXCL) && ( GetLastError() == ERROR_ALREADY_EXISTS )) { + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: Request exclusive & already exists", + shm->ipcname )); + PR_SetError( PR_FILE_EXISTS_ERROR, ERROR_ALREADY_EXISTS ); + CloseHandle( shm->handle ); + PR_FREEIF( shm->ipcname ) + PR_DELETE( shm ); + return(NULL); + } else { + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: CreateFileMapping() success: %s, handle: %d", + shm->ipcname, shm->handle )); + return(shm); + } + } + } else { +#ifdef WINCE + PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 ); + shm->handle = NULL; /* OpenFileMapping not supported */ +#else + shm->handle = OpenFileMapping( FILE_MAP_WRITE, TRUE, shm->ipcname ); +#endif + if ( NULL == shm->handle ) { + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: OpenFileMapping() failed: %s, error: %d", + shm->ipcname, PR_GetOSError())); + PR_FREEIF( shm->ipcname ); + PR_DELETE( shm ); + return(NULL); + } else { + PR_LOG(_pr_shm_lm, PR_LOG_DEBUG, + ( "PR_OpenSharedMemory: OpenFileMapping() success: %s, handle: %d", + shm->ipcname, shm->handle )); + return(shm); + } + } + /* returns from separate paths */ +} + +extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags ) +{ + PRUint32 access = FILE_MAP_WRITE; + void *addr; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + if ( PR_SHM_READONLY & flags ) + access = FILE_MAP_READ; + + addr = MapViewOfFile( shm->handle, + access, + 0, 0, + shm->size ); + + if ( NULL == addr ) { + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_LOG( _pr_shm_lm, PR_LOG_ERROR, + ("_MD_AttachSharedMemory: MapViewOfFile() failed. OSerror: %d", PR_GetOSError())); + } + + return( addr ); +} /* end _MD_ATTACH_SHARED_MEMORY() */ + + +extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr ) +{ + PRStatus rc = PR_SUCCESS; + BOOL wrc; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + wrc = UnmapViewOfFile( addr ); + if ( FALSE == wrc ) + { + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_LOG( _pr_shm_lm, PR_LOG_ERROR, + ("_MD_DetachSharedMemory: UnmapViewOfFile() failed. OSerror: %d", PR_GetOSError())); + rc = PR_FAILURE; + } + + return( rc ); +} + + +extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm ) +{ + PRStatus rc = PR_SUCCESS; + BOOL wrc; + + PR_ASSERT( shm->ident == _PR_SHM_IDENT ); + + wrc = CloseHandle( shm->handle ); + if ( FALSE == wrc ) + { + _PR_MD_MAP_DEFAULT_ERROR( GetLastError()); + PR_LOG( _pr_shm_lm, PR_LOG_ERROR, + ("_MD_CloseSharedMemory: CloseHandle() failed. OSerror: %d", PR_GetOSError())); + rc = PR_FAILURE; + } + PR_FREEIF( shm->ipcname ); + PR_DELETE( shm ); + + return( rc ); +} /* end _MD_CLOSE_SHARED_MEMORY() */ + +extern PRStatus _MD_DeleteSharedMemory( const char *name ) +{ + return( PR_SUCCESS ); +} + + +/* +** Windows implementation of anonymous memory (file) map +*/ +extern PRLogModuleInfo *_pr_shma_lm; + +extern PRFileMap* _md_OpenAnonFileMap( + const char *dirName, + PRSize size, + PRFileMapProtect prot +) +{ + PRFileMap *fm; + HANDLE hFileMap; + + fm = PR_CreateFileMap( (PRFileDesc*)-1, size, prot ); + if ( NULL == fm ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): PR_CreateFileMap(): failed")); + goto Finished; + } + + /* + ** Make fm->md.hFileMap inheritable. We can't use + ** GetHandleInformation and SetHandleInformation + ** because these two functions fail with + ** ERROR_CALL_NOT_IMPLEMENTED on Win95. + */ + if (DuplicateHandle(GetCurrentProcess(), fm->md.hFileMap, + GetCurrentProcess(), &hFileMap, + 0, TRUE /* inheritable */, + DUPLICATE_SAME_ACCESS) == FALSE) { + PR_SetError( PR_UNKNOWN_ERROR, GetLastError() ); + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_OpenAnonFileMap(): DuplicateHandle(): failed")); + PR_CloseFileMap( fm ); + fm = NULL; + goto Finished; + } + CloseHandle(fm->md.hFileMap); + fm->md.hFileMap = hFileMap; + +Finished: + return(fm); +} /* end md_OpenAnonFileMap() */ + +/* +** _md_ExportFileMapAsString() +** +*/ +extern PRStatus _md_ExportFileMapAsString( + PRFileMap *fm, + PRSize bufSize, + char *buf +) +{ + PRIntn written; + + written = PR_snprintf( buf, (PRUint32) bufSize, "%d:%" PR_PRIdOSFD ":%ld", + (PRIntn)fm->prot, (PROsfd)fm->md.hFileMap, (PRInt32)fm->md.dwAccess ); + + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ExportFileMapAsString(): prot: %x, hFileMap: %x, dwAccess: %x", + fm->prot, fm->md.hFileMap, fm->md.dwAccess )); + + return((written == -1)? PR_FAILURE : PR_SUCCESS); +} /* end _md_ExportFileMapAsString() */ + + +/* +** _md_ImportFileMapFromString() +** +*/ +extern PRFileMap * _md_ImportFileMapFromString( + const char *fmstring +) +{ + PRIntn prot; + PROsfd hFileMap; + PRInt32 dwAccess; + PRFileMap *fm = NULL; + + PR_sscanf( fmstring, "%d:%" PR_SCNdOSFD ":%ld", + &prot, &hFileMap, &dwAccess ); + + fm = PR_NEWZAP(PRFileMap); + if ( NULL == fm ) { + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ImportFileMapFromString(): PR_NEWZAP(): Failed")); + return(fm); + } + + fm->prot = (PRFileMapProtect)prot; + fm->md.hFileMap = (HANDLE)hFileMap; + fm->md.dwAccess = (DWORD)dwAccess; + fm->fd = (PRFileDesc*)-1; + + PR_LOG( _pr_shma_lm, PR_LOG_DEBUG, + ("_md_ImportFileMapFromString(): fm: %p, prot: %d, hFileMap: %8.8x, dwAccess: %8.8x, fd: %x", + fm, prot, fm->md.hFileMap, fm->md.dwAccess, fm->fd)); + return(fm); +} /* end _md_ImportFileMapFromString() */ + +#else +Error! Why is PR_HAVE_WIN32_NAMED_SHARED_MEMORY not defined? +#endif /* PR_HAVE_WIN32_NAMED_SHARED_MEMORY */ +/* --- end w32shm.c --- */ diff --git a/mozilla/nsprpub/pr/src/md/windows/w95cv.c b/mozilla/nsprpub/pr/src/md/windows/w95cv.c new file mode 100644 index 0000000..975ac4b --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w95cv.c @@ -0,0 +1,347 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * w95cv.c -- Windows 95 Machine-Dependent Code for Condition Variables + * + * We implement our own condition variable wait queue. Each thread + * has a semaphore object (thread->md.blocked_sema) to block on while + * waiting on a condition variable. + * + * We use a deferred condition notify algorithm. When PR_NotifyCondVar + * or PR_NotifyAllCondVar is called, the condition notifies are simply + * recorded in the _MDLock structure. We defer the condition notifies + * until right after we unlock the lock. This way the awakened threads + * have a better chance to reaquire the lock. + */ + +#include "primpl.h" + +/* + * AddThreadToCVWaitQueueInternal -- + * + * Add the thread to the end of the condition variable's wait queue. + * The CV's lock must be locked when this function is called. + */ + +static void +AddThreadToCVWaitQueueInternal(PRThread *thred, struct _MDCVar *cv) +{ + PR_ASSERT((cv->waitTail != NULL && cv->waitHead != NULL) + || (cv->waitTail == NULL && cv->waitHead == NULL)); + cv->nwait += 1; + thred->md.inCVWaitQueue = PR_TRUE; + thred->md.next = NULL; + thred->md.prev = cv->waitTail; + if (cv->waitHead == NULL) { + cv->waitHead = thred; + } else { + cv->waitTail->md.next = thred; + } + cv->waitTail = thred; +} + +/* + * md_UnlockAndPostNotifies -- + * + * Unlock the lock, and then do the deferred condition notifies. + * If waitThred and waitCV are not NULL, waitThred is added to + * the wait queue of waitCV before the lock is unlocked. + * + * This function is called by _PR_MD_WAIT_CV and _PR_MD_UNLOCK, + * the two places where a lock is unlocked. + */ +static void +md_UnlockAndPostNotifies( + _MDLock *lock, + PRThread *waitThred, + _MDCVar *waitCV) +{ + PRIntn index; + _MDNotified post; + _MDNotified *notified, *prev = NULL; + + /* + * Time to actually notify any conditions that were affected + * while the lock was held. Get a copy of the list that's in + * the lock structure and then zero the original. If it's + * linked to other such structures, we own that storage. + */ + post = lock->notified; /* a safe copy; we own the lock */ + +#if defined(DEBUG) + ZeroMemory(&lock->notified, sizeof(_MDNotified)); /* reset */ +#else + lock->notified.length = 0; /* these are really sufficient */ + lock->notified.link = NULL; +#endif + + /* + * Figure out how many threads we need to wake up. + */ + notified = &post; /* this is where we start */ + do { + for (index = 0; index < notified->length; ++index) { + _MDCVar *cv = notified->cv[index].cv; + PRThread *thred; + int i; + + /* Fast special case: no waiting threads */ + if (cv->waitHead == NULL) { + notified->cv[index].notifyHead = NULL; + continue; + } + + /* General case */ + if (-1 == notified->cv[index].times) { + /* broadcast */ + thred = cv->waitHead; + while (thred != NULL) { + thred->md.inCVWaitQueue = PR_FALSE; + thred = thred->md.next; + } + notified->cv[index].notifyHead = cv->waitHead; + cv->waitHead = cv->waitTail = NULL; + cv->nwait = 0; + } else { + thred = cv->waitHead; + i = notified->cv[index].times; + while (thred != NULL && i > 0) { + thred->md.inCVWaitQueue = PR_FALSE; + thred = thred->md.next; + i--; + } + notified->cv[index].notifyHead = cv->waitHead; + cv->waitHead = thred; + if (cv->waitHead == NULL) { + cv->waitTail = NULL; + } else { + if (cv->waitHead->md.prev != NULL) { + cv->waitHead->md.prev->md.next = NULL; + cv->waitHead->md.prev = NULL; + } + } + cv->nwait -= notified->cv[index].times - i; + } + } + notified = notified->link; + } while (NULL != notified); + + if (waitThred) { + AddThreadToCVWaitQueueInternal(waitThred, waitCV); + } + + /* Release the lock before notifying */ + LeaveCriticalSection(&lock->mutex); + + notified = &post; /* this is where we start */ + do { + for (index = 0; index < notified->length; ++index) { + PRThread *thred; + PRThread *next; + + thred = notified->cv[index].notifyHead; + while (thred != NULL) { + BOOL rv; + + next = thred->md.next; + thred->md.prev = thred->md.next = NULL; + + rv = ReleaseSemaphore(thred->md.blocked_sema, 1, NULL); + PR_ASSERT(rv != 0); + thred = next; + } + } + prev = notified; + notified = notified->link; + if (&post != prev) PR_DELETE(prev); + } while (NULL != notified); +} + +/* + * Notifies just get posted to the protecting mutex. The + * actual notification is done when the lock is released so that + * MP systems don't contend for a lock that they can't have. + */ +static void md_PostNotifyToCvar(_MDCVar *cvar, _MDLock *lock, + PRBool broadcast) +{ + PRIntn index = 0; + _MDNotified *notified = &lock->notified; + + while (1) { + for (index = 0; index < notified->length; ++index) { + if (notified->cv[index].cv == cvar) { + if (broadcast) { + notified->cv[index].times = -1; + } else if (-1 != notified->cv[index].times) { + notified->cv[index].times += 1; + } + return; + } + } + /* if not full, enter new CV in this array */ + if (notified->length < _MD_CV_NOTIFIED_LENGTH) break; + + /* if there's no link, create an empty array and link it */ + if (NULL == notified->link) { + notified->link = PR_NEWZAP(_MDNotified); + } + + notified = notified->link; + } + + /* A brand new entry in the array */ + notified->cv[index].times = (broadcast) ? -1 : 1; + notified->cv[index].cv = cvar; + notified->length += 1; +} + +/* + * _PR_MD_NEW_CV() -- Creating new condition variable + * ... Solaris uses cond_init() in similar function. + * + * returns: -1 on failure + * 0 when it succeeds. + * + */ +PRInt32 +_PR_MD_NEW_CV(_MDCVar *cv) +{ + cv->magic = _MD_MAGIC_CV; + /* + * The waitHead, waitTail, and nwait fields are zeroed + * when the PRCondVar structure is created. + */ + return 0; +} + +void _PR_MD_FREE_CV(_MDCVar *cv) +{ + cv->magic = (PRUint32)-1; + return; +} + +/* + * _PR_MD_WAIT_CV() -- Wait on condition variable + */ +void _PR_MD_WAIT_CV(_MDCVar *cv, _MDLock *lock, PRIntervalTime timeout ) +{ + PRThread *thred = _PR_MD_CURRENT_THREAD(); + DWORD rv; + DWORD msecs = (timeout == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(timeout); + + /* + * If we have pending notifies, post them now. + */ + if (0 != lock->notified.length) { + md_UnlockAndPostNotifies(lock, thred, cv); + } else { + AddThreadToCVWaitQueueInternal(thred, cv); + LeaveCriticalSection(&lock->mutex); + } + + /* Wait for notification or timeout; don't really care which */ + rv = WaitForSingleObject(thred->md.blocked_sema, msecs); + + EnterCriticalSection(&(lock->mutex)); + + PR_ASSERT(rv != WAIT_ABANDONED); + PR_ASSERT(rv != WAIT_FAILED); + PR_ASSERT(rv != WAIT_OBJECT_0 || thred->md.inCVWaitQueue == PR_FALSE); + + if (rv == WAIT_TIMEOUT) { + if (thred->md.inCVWaitQueue) { + PR_ASSERT((cv->waitTail != NULL && cv->waitHead != NULL) + || (cv->waitTail == NULL && cv->waitHead == NULL)); + cv->nwait -= 1; + thred->md.inCVWaitQueue = PR_FALSE; + if (cv->waitHead == thred) { + cv->waitHead = thred->md.next; + if (cv->waitHead == NULL) { + cv->waitTail = NULL; + } else { + cv->waitHead->md.prev = NULL; + } + } else { + PR_ASSERT(thred->md.prev != NULL); + thred->md.prev->md.next = thred->md.next; + if (thred->md.next != NULL) { + thred->md.next->md.prev = thred->md.prev; + } else { + PR_ASSERT(cv->waitTail == thred); + cv->waitTail = thred->md.prev; + } + } + thred->md.next = thred->md.prev = NULL; + } else { + /* + * This thread must have been notified, but the + * ReleaseSemaphore call happens after WaitForSingleObject + * times out. Wait on the semaphore again to make it + * non-signaled. We assume this wait won't take long. + */ + rv = WaitForSingleObject(thred->md.blocked_sema, INFINITE); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + } + PR_ASSERT(thred->md.inCVWaitQueue == PR_FALSE); + return; +} /* --- end _PR_MD_WAIT_CV() --- */ + +void _PR_MD_NOTIFY_CV(_MDCVar *cv, _MDLock *lock) +{ + md_PostNotifyToCvar(cv, lock, PR_FALSE); + return; +} + +void _PR_MD_NOTIFYALL_CV(_MDCVar *cv, _MDLock *lock) +{ + md_PostNotifyToCvar(cv, lock, PR_TRUE); + return; +} + +void _PR_MD_UNLOCK(_MDLock *lock) +{ + if (0 != lock->notified.length) { + md_UnlockAndPostNotifies(lock, NULL, NULL); + } else { + LeaveCriticalSection(&lock->mutex); + } + return; +} diff --git a/mozilla/nsprpub/pr/src/md/windows/w95dllmain.c b/mozilla/nsprpub/pr/src/md/windows/w95dllmain.c new file mode 100644 index 0000000..1dafe7a --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w95dllmain.c @@ -0,0 +1,71 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* + * The DLL entry point (DllMain) for NSPR. + * + * This is used to detach threads that were automatically attached by + * nspr. + */ + +#include <windows.h> +#include <primpl.h> + +BOOL WINAPI DllMain( + HINSTANCE hinstDLL, + DWORD fdwReason, + LPVOID lpvReserved) +{ +PRThread *me; + + switch (fdwReason) { + case DLL_PROCESS_ATTACH: + break; + case DLL_THREAD_ATTACH: + break; + case DLL_THREAD_DETACH: + if (_pr_initialized) { + me = _MD_GET_ATTACHED_THREAD(); + if ((me != NULL) && (me->flags & _PR_ATTACHED)) + _PRI_DetachThread(); + } + break; + case DLL_PROCESS_DETACH: + break; + } + return TRUE; +} diff --git a/mozilla/nsprpub/pr/src/md/windows/w95io.c b/mozilla/nsprpub/pr/src/md/windows/w95io.c new file mode 100644 index 0000000..86f952a --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w95io.c @@ -0,0 +1,1786 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Masayuki Nakano <masayuki@d-toybox.com> + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* Windows 95 IO module + * + * Assumes synchronous I/O. + * + */ + +#include "primpl.h" +#include <direct.h> +#include <mbstring.h> +#ifdef MOZ_UNICODE +#include <wchar.h> +#endif /* MOZ_UNICODE */ + +#ifdef WINCE + +static HANDLE CreateFileA(LPCSTR lpFileName, + DWORD dwDesiredAccess, + DWORD dwShareMode, + LPSECURITY_ATTRIBUTES lpSecurityAttributes, + DWORD dwCreationDisposition, + DWORD dwFlagsAndAttributes, + HANDLE hTemplateFile) +{ + PRUnichar wFileName[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, lpFileName, -1, wFileName, MAX_PATH); + return CreateFileW(wFileName, dwDesiredAccess, dwShareMode, + lpSecurityAttributes, dwCreationDisposition, + dwFlagsAndAttributes, hTemplateFile); +} + +/* + * We seem to call FindFirstFileA and FindNextFileA just to get + * the file names in a directory listing. If so, we could define + * a custom WIN32_FIND_DATAA structure with just the cFileName + * member, and the CopyFindFileDataW2A function could just + * copy/convert the cFileName member. + */ +static void CopyFindFileDataW2A(LPWIN32_FIND_DATAW from, + LPWIN32_FIND_DATAA to) +{ + /* + * WIN32_FIND_DATAA and WIN32_FIND_DATAW are slightly different. + * The dwReserved0, dwReserved1, and cAlternateFileName members + * exist only in WIN32_FIND_DATAA. The dwOID member exists only + * in WIN32_FIND_DATAW. + */ + to->dwFileAttributes = from->dwFileAttributes; + to->ftCreationTime = from->ftCreationTime; + to->ftLastAccessTime = from->ftLastAccessTime; + to->ftLastWriteTime = from->ftLastWriteTime; + to->nFileSizeHigh = from->nFileSizeHigh; + to->nFileSizeLow = from->nFileSizeLow; + to->dwReserved0 = 0; + to->dwReserved1 = 0; + WideCharToMultiByte(CP_ACP, 0, from->cFileName, -1, + to->cFileName, MAX_PATH, NULL, NULL); + to->cAlternateFileName[0] = '\0'; +} + +static HANDLE FindFirstFileA(LPCSTR lpFileName, + LPWIN32_FIND_DATAA lpFindFileData) +{ + PRUnichar wFileName[MAX_PATH]; + HANDLE hFindFile; + WIN32_FIND_DATAW wFindFileData; + + MultiByteToWideChar(CP_ACP, 0, lpFileName, -1, wFileName, MAX_PATH); + hFindFile = FindFirstFileW(wFileName, &wFindFileData); + if (hFindFile != INVALID_HANDLE_VALUE) { + CopyFindFileDataW2A(&wFindFileData, lpFindFileData); + } + return hFindFile; +} + +static BOOL FindNextFileA(HANDLE hFindFile, + LPWIN32_FIND_DATAA lpFindFileData) +{ + WIN32_FIND_DATAW wFindFileData; + BOOL rv; + + rv = FindNextFileW(hFindFile, &wFindFileData); + if (rv) { + CopyFindFileDataW2A(&wFindFileData, lpFindFileData); + } + return rv; +} + +static BOOL GetFileAttributesExA(LPCSTR lpFileName, + GET_FILEEX_INFO_LEVELS fInfoLevelId, + LPVOID lpFileInformation) +{ + PRUnichar wFileName[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, lpFileName, -1, wFileName, MAX_PATH); + return GetFileAttributesExW(wFileName, fInfoLevelId, lpFileInformation); +} + +static BOOL DeleteFileA(LPCSTR lpFileName) +{ + PRUnichar wFileName[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, lpFileName, -1, wFileName, MAX_PATH); + return DeleteFileW(wFileName); +} + +static BOOL MoveFileA(LPCSTR from, LPCSTR to) +{ + PRUnichar wFrom[MAX_PATH]; + PRUnichar wTo[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, from, -1, wFrom, MAX_PATH); + MultiByteToWideChar(CP_ACP, 0, to, -1, wTo, MAX_PATH); + return MoveFileW(wFrom, wTo); +} + +static BOOL CreateDirectoryA(LPCSTR lpPathName, + LPSECURITY_ATTRIBUTES lpSecurityAttributes) +{ + PRUnichar wPathName[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, lpPathName, -1, wPathName, MAX_PATH); + return CreateDirectoryW(wPathName, lpSecurityAttributes); +} + +static BOOL RemoveDirectoryA(LPCSTR lpPathName) +{ + PRUnichar wPathName[MAX_PATH]; + MultiByteToWideChar(CP_ACP, 0, lpPathName, -1, wPathName, MAX_PATH); + return RemoveDirectoryW(wPathName); +} + +static long GetDriveType(const char *lpRootPathName) +{ + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return 0; // The drive type cannot be determined. +} + +static DWORD GetFullPathName(const char *lpFileName, + DWORD nBufferLength, + const char *lpBuffer, + const char **lpFilePart) +{ + // needs work dft + DWORD len = strlen(lpFileName); + if (len > nBufferLength) + return len; + + strncpy((char *)lpBuffer, lpFileName, len); + ((char *)lpBuffer)[len] = '\0'; + + if (lpFilePart) { + char *sep = strrchr(lpBuffer, '\\'); + if (sep) { + sep++; // pass the seperator + *lpFilePart = sep; + } else { + *lpFilePart = lpBuffer; + } + } + return len; +} + +static BOOL LockFile(HANDLE hFile, + DWORD dwFileOffsetLow, + DWORD dwFileOffsetHigh, + DWORD nNumberOfBytesToLockLow, + DWORD nNumberOfBytesToLockHigh) +{ + OVERLAPPED overlapped = {0}; + overlapped.Offset = dwFileOffsetLow; + overlapped.OffsetHigh = dwFileOffsetHigh; + return LockFileEx(hFile, + LOCKFILE_EXCLUSIVE_LOCK | LOCKFILE_FAIL_IMMEDIATELY, + 0, // reserved + nNumberOfBytesToLockLow, + nNumberOfBytesToLockHigh, &overlapped); +} + +static BOOL UnlockFile(HANDLE hFile, + DWORD dwFileOffsetLow, + DWORD dwFileOffsetHigh, + DWORD nNumberOfBytesToUnlockLow, + DWORD nNumberOfBytesToUnlockHigh) +{ + OVERLAPPED overlapped = {0}; + overlapped.Offset = dwFileOffsetLow; + overlapped.OffsetHigh = dwFileOffsetHigh; + return UnlockFileEx(hFile, + 0, // reserved + nNumberOfBytesToUnlockLow, + nNumberOfBytesToUnlockHigh, &overlapped); +} + +static unsigned char *_mbsdec(const unsigned char *string1, + const unsigned char *string2) +{ + // needs work dft + return NULL; +} + +static unsigned char *_mbsinc(const unsigned char *inCurrent) +{ + // needs work dft + return (unsigned char *)(inCurrent + 1); +} + +#endif + +struct _MDLock _pr_ioq_lock; + +/* + * NSPR-to-NT access right mapping table for files. + */ +static DWORD fileAccessTable[] = { + FILE_GENERIC_READ, + FILE_GENERIC_WRITE, + FILE_GENERIC_EXECUTE +}; + +/* + * NSPR-to-NT access right mapping table for directories. + */ +static DWORD dirAccessTable[] = { + FILE_GENERIC_READ, + FILE_GENERIC_WRITE|FILE_DELETE_CHILD, + FILE_GENERIC_EXECUTE +}; + +/* Windows CE has GetFileAttributesEx. */ +#ifndef WINCE +typedef BOOL (WINAPI *GetFileAttributesExFn)(LPCTSTR, + GET_FILEEX_INFO_LEVELS, + LPVOID); +static GetFileAttributesExFn getFileAttributesEx; +static void InitGetFileInfo(void); +#endif + +static void InitUnicodeSupport(void); + +static PRBool IsPrevCharSlash(const char *str, const char *current); + +void +_PR_MD_INIT_IO() +{ + WORD WSAVersion = 0x0101; + WSADATA WSAData; + int err; + + err = WSAStartup( WSAVersion, &WSAData ); + PR_ASSERT(0 == err); + +#ifdef DEBUG + /* Doublecheck _pr_filetime_offset's hard-coded value is correct. */ + { + SYSTEMTIME systime; + union { + PRTime prt; + FILETIME ft; + } filetime; + BOOL rv; + + systime.wYear = 1970; + systime.wMonth = 1; + /* wDayOfWeek is ignored */ + systime.wDay = 1; + systime.wHour = 0; + systime.wMinute = 0; + systime.wSecond = 0; + systime.wMilliseconds = 0; + + rv = SystemTimeToFileTime(&systime, &filetime.ft); + PR_ASSERT(0 != rv); + PR_ASSERT(filetime.prt == _pr_filetime_offset); + } +#endif /* DEBUG */ + + _PR_NT_InitSids(); + +#ifndef WINCE + InitGetFileInfo(); +#endif + + InitUnicodeSupport(); + + _PR_MD_InitSockets(); +} + +PRStatus +_PR_MD_WAIT(PRThread *thread, PRIntervalTime ticks) +{ + DWORD rv; + + PRUint32 msecs = (ticks == PR_INTERVAL_NO_TIMEOUT) ? + INFINITE : PR_IntervalToMilliseconds(ticks); + rv = WaitForSingleObject(thread->md.blocked_sema, msecs); + switch(rv) + { + case WAIT_OBJECT_0: + return PR_SUCCESS; + break; + case WAIT_TIMEOUT: + _PR_THREAD_LOCK(thread); + if (thread->state == _PR_IO_WAIT) { + ; + } else { + if (thread->wait.cvar != NULL) { + thread->wait.cvar = NULL; + _PR_THREAD_UNLOCK(thread); + } else { + /* The CVAR was notified just as the timeout + * occurred. This led to us being notified twice. + * call WaitForSingleObject() to clear the semaphore. + */ + _PR_THREAD_UNLOCK(thread); + rv = WaitForSingleObject(thread->md.blocked_sema, 0); + PR_ASSERT(rv == WAIT_OBJECT_0); + } + } + return PR_SUCCESS; + break; + default: + return PR_FAILURE; + break; + } +} +PRStatus +_PR_MD_WAKEUP_WAITER(PRThread *thread) +{ + if ( _PR_IS_NATIVE_THREAD(thread) ) + { + if (ReleaseSemaphore(thread->md.blocked_sema, 1, NULL) == FALSE) + return PR_FAILURE; + else + return PR_SUCCESS; + } +} + + +/* --- FILE IO ----------------------------------------------------------- */ +/* + * _PR_MD_OPEN() -- Open a file + * + * returns: a fileHandle + * + * The NSPR open flags (osflags) are translated into flags for Win95 + * + * Mode seems to be passed in as a unix style file permissions argument + * as in 0666, in the case of opening the logFile. + * + */ +PROsfd +_PR_MD_OPEN(const char *name, PRIntn osflags, int mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + + if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH; + + if (osflags & PR_RDONLY || osflags & PR_RDWR) + access |= GENERIC_READ; + if (osflags & PR_WRONLY || osflags & PR_RDWR) + access |= GENERIC_WRITE; + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) + flags = CREATE_NEW; + else if (osflags & PR_CREATE_FILE) { + if (osflags & PR_TRUNCATE) + flags = CREATE_ALWAYS; + else + flags = OPEN_ALWAYS; + } else { + if (osflags & PR_TRUNCATE) + flags = TRUNCATE_EXISTING; + else + flags = OPEN_EXISTING; + } + + file = CreateFileA(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + NULL, + flags, + flag6, + NULL); + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + return (PROsfd)file; +} + +PROsfd +_PR_MD_OPEN_FILE(const char *name, PRIntn osflags, int mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (osflags & PR_CREATE_FILE) { + if (_PR_NT_MakeSecurityDescriptorACL(mode, fileAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + } + + if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH; + + if (osflags & PR_RDONLY || osflags & PR_RDWR) + access |= GENERIC_READ; + if (osflags & PR_WRONLY || osflags & PR_RDWR) + access |= GENERIC_WRITE; + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) + flags = CREATE_NEW; + else if (osflags & PR_CREATE_FILE) { + if (osflags & PR_TRUNCATE) + flags = CREATE_ALWAYS; + else + flags = OPEN_ALWAYS; + } else { + if (osflags & PR_TRUNCATE) + flags = TRUNCATE_EXISTING; + else + flags = OPEN_EXISTING; + } + + file = CreateFileA(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + lpSA, + flags, + flag6, + NULL); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + return (PROsfd)file; +} + +PRInt32 +_PR_MD_READ(PRFileDesc *fd, void *buf, PRInt32 len) +{ + PRUint32 bytes; + int rv, err; + + rv = ReadFile((HANDLE)fd->secret->md.osfd, + (LPVOID)buf, + len, + &bytes, + NULL); + + if (rv == 0) + { + err = GetLastError(); + /* ERROR_HANDLE_EOF can only be returned by async io */ + PR_ASSERT(err != ERROR_HANDLE_EOF); + if (err == ERROR_BROKEN_PIPE) + return 0; + else { + _PR_MD_MAP_READ_ERROR(err); + return -1; + } + } + return bytes; +} + +PRInt32 +_PR_MD_WRITE(PRFileDesc *fd, const void *buf, PRInt32 len) +{ + PROsfd f = fd->secret->md.osfd; + PRInt32 bytes; + int rv; + + rv = WriteFile((HANDLE)f, + buf, + len, + &bytes, + NULL ); + + if (rv == 0) + { + _PR_MD_MAP_WRITE_ERROR(GetLastError()); + return -1; + } + return bytes; +} /* --- end _PR_MD_WRITE() --- */ + +PROffset32 +_PR_MD_LSEEK(PRFileDesc *fd, PROffset32 offset, PRSeekWhence whence) +{ + DWORD moveMethod; + PROffset32 rv; + + switch (whence) { + case PR_SEEK_SET: + moveMethod = FILE_BEGIN; + break; + case PR_SEEK_CUR: + moveMethod = FILE_CURRENT; + break; + case PR_SEEK_END: + moveMethod = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + rv = SetFilePointer((HANDLE)fd->secret->md.osfd, offset, NULL, moveMethod); + + /* + * If the lpDistanceToMoveHigh argument (third argument) is + * NULL, SetFilePointer returns 0xffffffff on failure. + */ + if (-1 == rv) { + _PR_MD_MAP_LSEEK_ERROR(GetLastError()); + } + return rv; +} + +PROffset64 +_PR_MD_LSEEK64(PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence) +{ + DWORD moveMethod; + LARGE_INTEGER li; + DWORD err; + + switch (whence) { + case PR_SEEK_SET: + moveMethod = FILE_BEGIN; + break; + case PR_SEEK_CUR: + moveMethod = FILE_CURRENT; + break; + case PR_SEEK_END: + moveMethod = FILE_END; + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + li.QuadPart = offset; + li.LowPart = SetFilePointer((HANDLE)fd->secret->md.osfd, + li.LowPart, &li.HighPart, moveMethod); + + if (0xffffffff == li.LowPart && (err = GetLastError()) != NO_ERROR) { + _PR_MD_MAP_LSEEK_ERROR(err); + li.QuadPart = -1; + } + return li.QuadPart; +} + +/* + * This is documented to succeed on read-only files, but Win32's + * FlushFileBuffers functions fails with "access denied" in such a + * case. So we only signal an error if the error is *not* "access + * denied". + */ +PRInt32 +_PR_MD_FSYNC(PRFileDesc *fd) +{ + /* + * From the documentation: + * + * On Windows NT, the function FlushFileBuffers fails if hFile + * is a handle to console output. That is because console + * output is not buffered. The function returns FALSE, and + * GetLastError returns ERROR_INVALID_HANDLE. + * + * On the other hand, on Win95, it returns without error. I cannot + * assume that 0, 1, and 2 are console, because if someone closes + * System.out and then opens a file, they might get file descriptor + * 1. An error on *that* version of 1 should be reported, whereas + * an error on System.out (which was the original 1) should be + * ignored. So I use isatty() to ensure that such an error was due + * to this bogosity, and if it was, I ignore the error. + */ + + BOOL ok = FlushFileBuffers((HANDLE)fd->secret->md.osfd); + + if (!ok) { + DWORD err = GetLastError(); + if (err != ERROR_ACCESS_DENIED) { // from winerror.h + _PR_MD_MAP_FSYNC_ERROR(err); + return -1; + } + } + return 0; +} + +PRInt32 +_MD_CloseFile(PROsfd osfd) +{ + PRInt32 rv; + + rv = (CloseHandle((HANDLE)osfd))?0:-1; + if (rv == -1) + _PR_MD_MAP_CLOSE_ERROR(GetLastError()); + return rv; +} + + +/* --- DIR IO ------------------------------------------------------------ */ +#define GetFileFromDIR(d) (d)->d_entry.cFileName +#define FileIsHidden(d) ((d)->d_entry.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) + +static void FlipSlashes(char *cp, size_t len) +{ + while (len-- > 0) { + if (cp[0] == '/') { + cp[0] = PR_DIRECTORY_SEPARATOR; + } + cp = _mbsinc(cp); + } +} /* end FlipSlashes() */ + + +/* +** +** Local implementations of standard Unix RTL functions which are not provided +** by the VC RTL. +** +*/ + +PRInt32 +_PR_MD_CLOSE_DIR(_MDDir *d) +{ + if ( d ) { + if (FindClose(d->d_hdl)) { + d->magic = (PRUint32)-1; + return 0; + } else { + _PR_MD_MAP_CLOSEDIR_ERROR(GetLastError()); + return -1; + } + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; +} + + +PRStatus +_PR_MD_OPEN_DIR(_MDDir *d, const char *name) +{ + char filename[ MAX_PATH ]; + size_t len; + + len = strlen(name); + /* Need 5 bytes for \*.* and the trailing null byte. */ + if (len + 5 > MAX_PATH) { + PR_SetError(PR_NAME_TOO_LONG_ERROR, 0); + return PR_FAILURE; + } + strcpy(filename, name); + + /* + * If 'name' ends in a slash or backslash, do not append + * another backslash. + */ + if (IsPrevCharSlash(filename, filename + len)) { + len--; + } + strcpy(&filename[len], "\\*.*"); + FlipSlashes( filename, strlen(filename) ); + + d->d_hdl = FindFirstFileA( filename, &(d->d_entry) ); + if ( d->d_hdl == INVALID_HANDLE_VALUE ) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return PR_FAILURE; + } + d->firstEntry = PR_TRUE; + d->magic = _MD_MAGIC_DIR; + return PR_SUCCESS; +} + +char * +_PR_MD_READ_DIR(_MDDir *d, PRIntn flags) +{ + PRInt32 err; + BOOL rv; + char *fileName; + + if ( d ) { + while (1) { + if (d->firstEntry) { + d->firstEntry = PR_FALSE; + rv = 1; + } else { + rv = FindNextFileA(d->d_hdl, &(d->d_entry)); + } + if (rv == 0) { + break; + } + fileName = GetFileFromDIR(d); + if ( (flags & PR_SKIP_DOT) && + (fileName[0] == '.') && (fileName[1] == '\0')) + continue; + if ( (flags & PR_SKIP_DOT_DOT) && + (fileName[0] == '.') && (fileName[1] == '.') && + (fileName[2] == '\0')) + continue; + if ( (flags & PR_SKIP_HIDDEN) && FileIsHidden(d)) + continue; + return fileName; + } + err = GetLastError(); + PR_ASSERT(NO_ERROR != err); + _PR_MD_MAP_READDIR_ERROR(err); + return NULL; + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return NULL; +} + +PRInt32 +_PR_MD_DELETE(const char *name) +{ + if (DeleteFileA(name)) { + return 0; + } else { + _PR_MD_MAP_DELETE_ERROR(GetLastError()); + return -1; + } +} + +void +_PR_FileTimeToPRTime(const FILETIME *filetime, PRTime *prtm) +{ + PR_ASSERT(sizeof(FILETIME) == sizeof(PRTime)); + CopyMemory(prtm, filetime, sizeof(PRTime)); +#if defined(__MINGW32__) + *prtm = (*prtm - _pr_filetime_offset) / 10LL; +#else + *prtm = (*prtm - _pr_filetime_offset) / 10i64; +#endif + +#ifdef DEBUG + /* Doublecheck our calculation. */ + { + SYSTEMTIME systime; + PRExplodedTime etm; + PRTime cmp; /* for comparison */ + BOOL rv; + + rv = FileTimeToSystemTime(filetime, &systime); + PR_ASSERT(0 != rv); + + /* + * PR_ImplodeTime ignores wday and yday. + */ + etm.tm_usec = systime.wMilliseconds * PR_USEC_PER_MSEC; + etm.tm_sec = systime.wSecond; + etm.tm_min = systime.wMinute; + etm.tm_hour = systime.wHour; + etm.tm_mday = systime.wDay; + etm.tm_month = systime.wMonth - 1; + etm.tm_year = systime.wYear; + /* + * It is not well-documented what time zone the FILETIME's + * are in. WIN32_FIND_DATA is documented to be in UTC (GMT). + * But BY_HANDLE_FILE_INFORMATION is unclear about this. + * By our best judgement, we assume that FILETIME is in UTC. + */ + etm.tm_params.tp_gmt_offset = 0; + etm.tm_params.tp_dst_offset = 0; + cmp = PR_ImplodeTime(&etm); + + /* + * SYSTEMTIME is in milliseconds precision, so we convert PRTime's + * microseconds to milliseconds before doing the comparison. + */ + PR_ASSERT((cmp / PR_USEC_PER_MSEC) == (*prtm / PR_USEC_PER_MSEC)); + } +#endif /* DEBUG */ +} + +PRInt32 +_PR_MD_STAT(const char *fn, struct stat *info) +{ +#ifdef WINCE + // needs work. dft + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return -1; +#else + PRInt32 rv; + + rv = _stat(fn, (struct _stat *)info); + if (-1 == rv) { + /* + * Check for MSVC runtime library _stat() bug. + * (It's really a bug in FindFirstFile().) + * If a pathname ends in a backslash or slash, + * e.g., c:\temp\ or c:/temp/, _stat() will fail. + * Note: a pathname ending in a slash (e.g., c:/temp/) + * can be handled by _stat() on NT but not on Win95. + * + * We remove the backslash or slash at the end and + * try again. + */ + + size_t len = strlen(fn); + if (len > 0 && len <= _MAX_PATH + && IsPrevCharSlash(fn, fn + len)) { + char newfn[_MAX_PATH + 1]; + + strcpy(newfn, fn); + newfn[len - 1] = '\0'; + rv = _stat(newfn, (struct _stat *)info); + } + } + + if (-1 == rv) { + _PR_MD_MAP_STAT_ERROR(errno); + } + return rv; +#endif +} + +#define _PR_IS_SLASH(ch) ((ch) == '/' || (ch) == '\\') + +static PRBool +IsPrevCharSlash(const char *str, const char *current) +{ + const char *prev; + + if (str >= current) + return PR_FALSE; + prev = _mbsdec(str, current); + return (prev == current - 1) && _PR_IS_SLASH(*prev); +} + +/* + * IsRootDirectory -- + * + * Return PR_TRUE if the pathname 'fn' is a valid root directory, + * else return PR_FALSE. The char buffer pointed to by 'fn' must + * be writable. During the execution of this function, the contents + * of the buffer pointed to by 'fn' may be modified, but on return + * the original contents will be restored. 'buflen' is the size of + * the buffer pointed to by 'fn'. + * + * Root directories come in three formats: + * 1. / or \, meaning the root directory of the current drive. + * 2. C:/ or C:\, where C is a drive letter. + * 3. \\<server name>\<share point name>\ or + * \\<server name>\<share point name>, meaning the root directory + * of a UNC (Universal Naming Convention) name. + */ + +static PRBool +IsRootDirectory(char *fn, size_t buflen) +{ + char *p; + PRBool slashAdded = PR_FALSE; + PRBool rv = PR_FALSE; + + if (_PR_IS_SLASH(fn[0]) && fn[1] == '\0') { + return PR_TRUE; + } + + if (isalpha(fn[0]) && fn[1] == ':' && _PR_IS_SLASH(fn[2]) + && fn[3] == '\0') { + rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE; + return rv; + } + + /* The UNC root directory */ + + if (_PR_IS_SLASH(fn[0]) && _PR_IS_SLASH(fn[1])) { + /* The 'server' part should have at least one character. */ + p = &fn[2]; + if (*p == '\0' || _PR_IS_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the next slash */ + do { + p = _mbsinc(p); + } while (*p != '\0' && !_PR_IS_SLASH(*p)); + if (*p == '\0') { + return PR_FALSE; + } + + /* The 'share' part should have at least one character. */ + p++; + if (*p == '\0' || _PR_IS_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the final slash */ + do { + p = _mbsinc(p); + } while (*p != '\0' && !_PR_IS_SLASH(*p)); + if (_PR_IS_SLASH(*p) && p[1] != '\0') { + return PR_FALSE; + } + if (*p == '\0') { + /* + * GetDriveType() doesn't work correctly if the + * path is of the form \\server\share, so we add + * a final slash temporarily. + */ + if ((p + 1) < (fn + buflen)) { + *p++ = '\\'; + *p = '\0'; + slashAdded = PR_TRUE; + } else { + return PR_FALSE; /* name too long */ + } + } + rv = GetDriveType(fn) > 1 ? PR_TRUE : PR_FALSE; + /* restore the 'fn' buffer */ + if (slashAdded) { + *--p = '\0'; + } + } + return rv; +} + +#ifndef WINCE +/* + * InitGetFileInfo -- + * + * Called during IO init. Checks for the existence of the system function + * GetFileAttributeEx, which when available is used in GETFILEINFO calls. + * If the routine exists, then the address of the routine is stored in the + * variable getFileAttributesEx, which will be used to call the routine. + */ +static void InitGetFileInfo(void) +{ + HMODULE module; + module = GetModuleHandle("Kernel32.dll"); + if (!module) { + PR_LOG(_pr_io_lm, PR_LOG_DEBUG, + ("InitGetFileInfo: GetModuleHandle() failed: %d", + GetLastError())); + return; + } + + getFileAttributesEx = (GetFileAttributesExFn) + GetProcAddress(module, "GetFileAttributesExA"); +} + +/* + * If GetFileAttributeEx doesn't exist, we call FindFirstFile as a + * fallback. + */ +static BOOL +GetFileAttributesExFB(const char *fn, WIN32_FIND_DATA *findFileData) +{ + HANDLE hFindFile; + + /* + * FindFirstFile() expands wildcard characters. So + * we make sure the pathname contains no wildcard. + */ + if (NULL != _mbspbrk(fn, "?*")) { + SetLastError(ERROR_INVALID_NAME); + return FALSE; + } + + hFindFile = FindFirstFile(fn, findFileData); + if (INVALID_HANDLE_VALUE == hFindFile) { + DWORD len; + char *filePart; + char pathbuf[MAX_PATH + 1]; + + /* + * FindFirstFile() does not work correctly on root directories. + * It also doesn't work correctly on a pathname that ends in a + * slash. So we first check to see if the pathname specifies a + * root directory. If not, and if the pathname ends in a slash, + * we remove the final slash and try again. + */ + + /* + * If the pathname does not contain ., \, and /, it cannot be + * a root directory or a pathname that ends in a slash. + */ + if (NULL == _mbspbrk(fn, ".\\/")) { + return FALSE; + } + len = GetFullPathName(fn, sizeof(pathbuf), pathbuf, + &filePart); + if (0 == len) { + return FALSE; + } + if (len > sizeof(pathbuf)) { + SetLastError(ERROR_FILENAME_EXCED_RANGE); + return FALSE; + } + if (IsRootDirectory(pathbuf, sizeof(pathbuf))) { + findFileData->dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY; + /* The file size doesn't have a meaning for directories. */ + findFileData->nFileSizeHigh = 0; + findFileData->nFileSizeLow = 0; + /* + * For a directory, these timestamps all specify when the + * directory is created. The creation time doesn't make + * sense for root directories, so we set it to (NSPR) time 0. + */ + memcpy(&findFileData->ftCreationTime, &_pr_filetime_offset, 8); + findFileData->ftLastAccessTime = findFileData->ftCreationTime; + findFileData->ftLastWriteTime = findFileData->ftCreationTime; + return TRUE; + } + if (!IsPrevCharSlash(pathbuf, pathbuf + len)) { + return FALSE; + } else { + pathbuf[len - 1] = '\0'; + hFindFile = FindFirstFile(pathbuf, findFileData); + if (INVALID_HANDLE_VALUE == hFindFile) { + return FALSE; + } + } + } + + FindClose(hFindFile); + return TRUE; +} +#endif + +PRInt32 +_PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info) +{ +#ifdef WINCE + WIN32_FILE_ATTRIBUTE_DATA findFileData; +#else + WIN32_FIND_DATA findFileData; +#endif + BOOL rv; + + if (NULL == fn || '\0' == *fn) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + +#ifdef WINCE + rv = GetFileAttributesExA(fn, GetFileExInfoStandard, &findFileData); +#else + /* GetFileAttributesEx is supported on Win 2K and up. */ + if (getFileAttributesEx) { + rv = getFileAttributesEx(fn, GetFileExInfoStandard, &findFileData); + } else { + rv = GetFileAttributesExFB(fn, &findFileData); + } +#endif + if (!rv) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + + if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } else { + info->type = PR_FILE_FILE; + } + + info->size = findFileData.nFileSizeHigh; + info->size = (info->size << 32) + findFileData.nFileSizeLow; + + _PR_FileTimeToPRTime(&findFileData.ftLastWriteTime, &info->modifyTime); + + if (0 == findFileData.ftCreationTime.dwLowDateTime && + 0 == findFileData.ftCreationTime.dwHighDateTime) { + info->creationTime = info->modifyTime; + } else { + _PR_FileTimeToPRTime(&findFileData.ftCreationTime, + &info->creationTime); + } + + return 0; +} + +PRInt32 +_PR_MD_GETFILEINFO(const char *fn, PRFileInfo *info) +{ + PRFileInfo64 info64; + PRInt32 rv = _PR_MD_GETFILEINFO64(fn, &info64); + if (0 == rv) + { + info->type = info64.type; + info->size = (PRUint32) info64.size; + info->modifyTime = info64.modifyTime; + info->creationTime = info64.creationTime; + } + return rv; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO64(const PRFileDesc *fd, PRFileInfo64 *info) +{ + int rv; + + BY_HANDLE_FILE_INFORMATION hinfo; + + rv = GetFileInformationByHandle((HANDLE)fd->secret->md.osfd, &hinfo); + if (rv == FALSE) { + _PR_MD_MAP_FSTAT_ERROR(GetLastError()); + return -1; + } + + if (hinfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) + info->type = PR_FILE_DIRECTORY; + else + info->type = PR_FILE_FILE; + + info->size = hinfo.nFileSizeHigh; + info->size = (info->size << 32) + hinfo.nFileSizeLow; + + _PR_FileTimeToPRTime(&hinfo.ftLastWriteTime, &(info->modifyTime) ); + _PR_FileTimeToPRTime(&hinfo.ftCreationTime, &(info->creationTime) ); + + return 0; +} + +PRInt32 +_PR_MD_GETOPENFILEINFO(const PRFileDesc *fd, PRFileInfo *info) +{ + PRFileInfo64 info64; + int rv = _PR_MD_GETOPENFILEINFO64(fd, &info64); + if (0 == rv) + { + info->type = info64.type; + info->modifyTime = info64.modifyTime; + info->creationTime = info64.creationTime; + LL_L2I(info->size, info64.size); + } + return rv; +} + +PRStatus +_PR_MD_SET_FD_INHERITABLE(PRFileDesc *fd, PRBool inheritable) +{ +#ifdef WINCE + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return PR_FAILURE; +#else + BOOL rv; + + /* + * The SetHandleInformation function fails with the + * ERROR_CALL_NOT_IMPLEMENTED error on Win95. + */ + rv = SetHandleInformation( + (HANDLE)fd->secret->md.osfd, + HANDLE_FLAG_INHERIT, + inheritable ? HANDLE_FLAG_INHERIT : 0); + if (0 == rv) { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } + return PR_SUCCESS; +#endif +} + +void +_PR_MD_INIT_FD_INHERITABLE(PRFileDesc *fd, PRBool imported) +{ + if (imported) { + fd->secret->inheritable = _PR_TRI_UNKNOWN; + } else { + fd->secret->inheritable = _PR_TRI_FALSE; + } +} + +void +_PR_MD_QUERY_FD_INHERITABLE(PRFileDesc *fd) +{ +#ifdef WINCE + fd->secret->inheritable = _PR_TRI_FALSE; +#else + DWORD flags; + + PR_ASSERT(_PR_TRI_UNKNOWN == fd->secret->inheritable); + if (GetHandleInformation((HANDLE)fd->secret->md.osfd, &flags)) { + if (flags & HANDLE_FLAG_INHERIT) { + fd->secret->inheritable = _PR_TRI_TRUE; + } else { + fd->secret->inheritable = _PR_TRI_FALSE; + } + } +#endif +} + +PRInt32 +_PR_MD_RENAME(const char *from, const char *to) +{ + /* Does this work with dot-relative pathnames? */ + if (MoveFileA(from, to)) { + return 0; + } else { + _PR_MD_MAP_RENAME_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_ACCESS(const char *name, PRAccessHow how) +{ +#ifdef WINCE + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return -1; +#else +PRInt32 rv; + switch (how) { + case PR_ACCESS_WRITE_OK: + rv = _access(name, 02); + break; + case PR_ACCESS_READ_OK: + rv = _access(name, 04); + break; + case PR_ACCESS_EXISTS: + return _access(name, 00); + break; + default: + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + if (rv < 0) + _PR_MD_MAP_ACCESS_ERROR(errno); + return rv; +#endif +} + +PRInt32 +_PR_MD_MKDIR(const char *name, PRIntn mode) +{ + /* XXXMB - how to translate the "mode"??? */ + if (CreateDirectoryA(name, NULL)) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_MAKE_DIR(const char *name, PRIntn mode) +{ + BOOL rv; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (_PR_NT_MakeSecurityDescriptorACL(mode, dirAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + rv = CreateDirectoryA(name, lpSA); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (rv) { + return 0; + } else { + _PR_MD_MAP_MKDIR_ERROR(GetLastError()); + return -1; + } +} + +PRInt32 +_PR_MD_RMDIR(const char *name) +{ + if (RemoveDirectoryA(name)) { + return 0; + } else { + _PR_MD_MAP_RMDIR_ERROR(GetLastError()); + return -1; + } +} + +PRStatus +_PR_MD_LOCKFILE(PROsfd f) +{ + PRStatus rc = PR_SUCCESS; + DWORD rv; + + rv = LockFile( (HANDLE)f, + 0l, 0l, + 0x0l, 0xffffffffl ); + if ( rv == 0 ) { + DWORD rc = GetLastError(); + PR_LOG( _pr_io_lm, PR_LOG_ERROR, + ("_PR_MD_LOCKFILE() failed. Error: %d", rc )); + rc = PR_FAILURE; + } + + return rc; +} /* end _PR_MD_LOCKFILE() */ + +PRStatus +_PR_MD_TLOCKFILE(PROsfd f) +{ + PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 ); + return PR_FAILURE; +} /* end _PR_MD_TLOCKFILE() */ + + +PRStatus +_PR_MD_UNLOCKFILE(PROsfd f) +{ + PRInt32 rv; + + rv = UnlockFile( (HANDLE) f, + 0l, 0l, + 0x0l, 0xffffffffl ); + + if ( rv ) + { + return PR_SUCCESS; + } + else + { + _PR_MD_MAP_DEFAULT_ERROR(GetLastError()); + return PR_FAILURE; + } +} /* end _PR_MD_UNLOCKFILE() */ + +PRInt32 +_PR_MD_PIPEAVAILABLE(PRFileDesc *fd) +{ + if (NULL == fd) + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0); + else + PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0); + return -1; +} + +#ifdef MOZ_UNICODE + +typedef HANDLE (WINAPI *CreateFileWFn) (LPCWSTR, DWORD, DWORD, LPSECURITY_ATTRIBUTES, DWORD, DWORD, HANDLE); +static CreateFileWFn createFileW = CreateFileW; +typedef HANDLE (WINAPI *FindFirstFileWFn) (LPCWSTR, LPWIN32_FIND_DATAW); +static FindFirstFileWFn findFirstFileW = FindFirstFileW; +typedef BOOL (WINAPI *FindNextFileWFn) (HANDLE, LPWIN32_FIND_DATAW); +static FindNextFileWFn findNextFileW = FindNextFileW; +typedef DWORD (WINAPI *GetFullPathNameWFn) (LPCWSTR, DWORD, LPWSTR, LPWSTR *); +static GetFullPathNameWFn getFullPathNameW = GetFullPathNameW; +typedef UINT (WINAPI *GetDriveTypeWFn) (LPCWSTR); +static GetDriveTypeWFn getDriveTypeW = GetDriveTypeW; + +#endif /* MOZ_UNICODE */ + +PRBool _pr_useUnicode = PR_FALSE; + +static void InitUnicodeSupport(void) +{ +#ifdef WINCE + /* The A functions don't even exist in Windows Mobile. */ + _pr_useUnicode = PR_TRUE; +#else + /* + * The W functions exist on Win9x as stubs that fail with the + * ERROR_CALL_NOT_IMPLEMENTED error. We plan to emulate the + * MSLU W functions on Win9x in the future. + */ + + /* Find out if we are running on a Unicode enabled version of Windows */ + OSVERSIONINFOA osvi = {0}; + + osvi.dwOSVersionInfoSize = sizeof(osvi); + if (GetVersionExA(&osvi)) { + _pr_useUnicode = (osvi.dwPlatformId >= VER_PLATFORM_WIN32_NT); + } else { + _pr_useUnicode = PR_FALSE; + } +#ifdef DEBUG + /* + * In debug builds, allow explicit use of ANSI methods to simulate + * a Win9x environment for testing purposes. + */ + if (getenv("WINAPI_USE_ANSI")) + _pr_useUnicode = PR_FALSE; +#endif +#endif +} + +#ifdef MOZ_UNICODE + +/* ================ UTF16 Interfaces ================================ */ +static void FlipSlashesW(PRUnichar *cp, size_t len) +{ + while (len-- > 0) { + if (cp[0] == L'/') { + cp[0] = L'\\'; + } + cp++; + } +} /* end FlipSlashesW() */ + +PROsfd +_PR_MD_OPEN_FILE_UTF16(const PRUnichar *name, PRIntn osflags, int mode) +{ + HANDLE file; + PRInt32 access = 0; + PRInt32 flags = 0; + PRInt32 flag6 = 0; + SECURITY_ATTRIBUTES sa; + LPSECURITY_ATTRIBUTES lpSA = NULL; + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pACL = NULL; + + if (osflags & PR_CREATE_FILE) { + if (_PR_NT_MakeSecurityDescriptorACL(mode, fileAccessTable, + &pSD, &pACL) == PR_SUCCESS) { + sa.nLength = sizeof(sa); + sa.lpSecurityDescriptor = pSD; + sa.bInheritHandle = FALSE; + lpSA = &sa; + } + } + + if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH; + + if (osflags & PR_RDONLY || osflags & PR_RDWR) + access |= GENERIC_READ; + if (osflags & PR_WRONLY || osflags & PR_RDWR) + access |= GENERIC_WRITE; + + if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL ) + flags = CREATE_NEW; + else if (osflags & PR_CREATE_FILE) { + if (osflags & PR_TRUNCATE) + flags = CREATE_ALWAYS; + else + flags = OPEN_ALWAYS; + } else { + if (osflags & PR_TRUNCATE) + flags = TRUNCATE_EXISTING; + else + flags = OPEN_EXISTING; + } + + file = createFileW(name, + access, + FILE_SHARE_READ|FILE_SHARE_WRITE, + lpSA, + flags, + flag6, + NULL); + if (lpSA != NULL) { + _PR_NT_FreeSecurityDescriptorACL(pSD, pACL); + } + if (file == INVALID_HANDLE_VALUE) { + _PR_MD_MAP_OPEN_ERROR(GetLastError()); + return -1; + } + + return (PROsfd)file; +} + +PRStatus +_PR_MD_OPEN_DIR_UTF16(_MDDirUTF16 *d, const PRUnichar *name) +{ + PRUnichar filename[ MAX_PATH ]; + int len; + + len = wcslen(name); + /* Need 5 bytes for \*.* and the trailing null byte. */ + if (len + 5 > MAX_PATH) { + PR_SetError(PR_NAME_TOO_LONG_ERROR, 0); + return PR_FAILURE; + } + wcscpy(filename, name); + + /* + * If 'name' ends in a slash or backslash, do not append + * another backslash. + */ + if (filename[len - 1] == L'/' || filename[len - 1] == L'\\') { + len--; + } + wcscpy(&filename[len], L"\\*.*"); + FlipSlashesW( filename, wcslen(filename) ); + + d->d_hdl = findFirstFileW( filename, &(d->d_entry) ); + if ( d->d_hdl == INVALID_HANDLE_VALUE ) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return PR_FAILURE; + } + d->firstEntry = PR_TRUE; + d->magic = _MD_MAGIC_DIR; + return PR_SUCCESS; +} + +PRUnichar * +_PR_MD_READ_DIR_UTF16(_MDDirUTF16 *d, PRIntn flags) +{ + PRInt32 err; + BOOL rv; + PRUnichar *fileName; + + if ( d ) { + while (1) { + if (d->firstEntry) { + d->firstEntry = PR_FALSE; + rv = 1; + } else { + rv = findNextFileW(d->d_hdl, &(d->d_entry)); + } + if (rv == 0) { + break; + } + fileName = GetFileFromDIR(d); + if ( (flags & PR_SKIP_DOT) && + (fileName[0] == L'.') && (fileName[1] == L'\0')) + continue; + if ( (flags & PR_SKIP_DOT_DOT) && + (fileName[0] == L'.') && (fileName[1] == L'.') && + (fileName[2] == L'\0')) + continue; + if ( (flags & PR_SKIP_HIDDEN) && FileIsHidden(d)) + continue; + return fileName; + } + err = GetLastError(); + PR_ASSERT(NO_ERROR != err); + _PR_MD_MAP_READDIR_ERROR(err); + return NULL; + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return NULL; +} + +PRInt32 +_PR_MD_CLOSE_DIR_UTF16(_MDDirUTF16 *d) +{ + if ( d ) { + if (FindClose(d->d_hdl)) { + d->magic = (PRUint32)-1; + return 0; + } else { + _PR_MD_MAP_CLOSEDIR_ERROR(GetLastError()); + return -1; + } + } + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; +} + +#define _PR_IS_W_SLASH(ch) ((ch) == L'/' || (ch) == L'\\') + +/* + * IsRootDirectoryW -- + * + * Return PR_TRUE if the pathname 'fn' is a valid root directory, + * else return PR_FALSE. The PRUnichar buffer pointed to by 'fn' must + * be writable. During the execution of this function, the contents + * of the buffer pointed to by 'fn' may be modified, but on return + * the original contents will be restored. 'buflen' is the size of + * the buffer pointed to by 'fn', in PRUnichars. + * + * Root directories come in three formats: + * 1. / or \, meaning the root directory of the current drive. + * 2. C:/ or C:\, where C is a drive letter. + * 3. \\<server name>\<share point name>\ or + * \\<server name>\<share point name>, meaning the root directory + * of a UNC (Universal Naming Convention) name. + */ + +static PRBool +IsRootDirectoryW(PRUnichar *fn, size_t buflen) +{ + PRUnichar *p; + PRBool slashAdded = PR_FALSE; + PRBool rv = PR_FALSE; + + if (_PR_IS_W_SLASH(fn[0]) && fn[1] == L'\0') { + return PR_TRUE; + } + + if (iswalpha(fn[0]) && fn[1] == L':' && _PR_IS_W_SLASH(fn[2]) + && fn[3] == L'\0') { + rv = getDriveTypeW(fn) > 1 ? PR_TRUE : PR_FALSE; + return rv; + } + + /* The UNC root directory */ + + if (_PR_IS_W_SLASH(fn[0]) && _PR_IS_W_SLASH(fn[1])) { + /* The 'server' part should have at least one character. */ + p = &fn[2]; + if (*p == L'\0' || _PR_IS_W_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the next slash */ + do { + p++; + } while (*p != L'\0' && !_PR_IS_W_SLASH(*p)); + if (*p == L'\0') { + return PR_FALSE; + } + + /* The 'share' part should have at least one character. */ + p++; + if (*p == L'\0' || _PR_IS_W_SLASH(*p)) { + return PR_FALSE; + } + + /* look for the final slash */ + do { + p++; + } while (*p != L'\0' && !_PR_IS_W_SLASH(*p)); + if (_PR_IS_W_SLASH(*p) && p[1] != L'\0') { + return PR_FALSE; + } + if (*p == L'\0') { + /* + * GetDriveType() doesn't work correctly if the + * path is of the form \\server\share, so we add + * a final slash temporarily. + */ + if ((p + 1) < (fn + buflen)) { + *p++ = L'\\'; + *p = L'\0'; + slashAdded = PR_TRUE; + } else { + return PR_FALSE; /* name too long */ + } + } + rv = getDriveTypeW(fn) > 1 ? PR_TRUE : PR_FALSE; + /* restore the 'fn' buffer */ + if (slashAdded) { + *--p = L'\0'; + } + } + return rv; +} + +PRInt32 +_PR_MD_GETFILEINFO64_UTF16(const PRUnichar *fn, PRFileInfo64 *info) +{ + HANDLE hFindFile; + WIN32_FIND_DATAW findFileData; + PRUnichar pathbuf[MAX_PATH + 1]; + + if (NULL == fn || L'\0' == *fn) { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return -1; + } + + /* + * FindFirstFile() expands wildcard characters. So + * we make sure the pathname contains no wildcard. + */ + if (NULL != wcspbrk(fn, L"?*")) { + PR_SetError(PR_FILE_NOT_FOUND_ERROR, 0); + return -1; + } + + hFindFile = findFirstFileW(fn, &findFileData); + if (INVALID_HANDLE_VALUE == hFindFile) { + DWORD len; + PRUnichar *filePart; + + /* + * FindFirstFile() does not work correctly on root directories. + * It also doesn't work correctly on a pathname that ends in a + * slash. So we first check to see if the pathname specifies a + * root directory. If not, and if the pathname ends in a slash, + * we remove the final slash and try again. + */ + + /* + * If the pathname does not contain ., \, and /, it cannot be + * a root directory or a pathname that ends in a slash. + */ + if (NULL == wcspbrk(fn, L".\\/")) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + len = getFullPathNameW(fn, sizeof(pathbuf)/sizeof(pathbuf[0]), pathbuf, + &filePart); + if (0 == len) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + if (len > sizeof(pathbuf)/sizeof(pathbuf[0])) { + PR_SetError(PR_NAME_TOO_LONG_ERROR, 0); + return -1; + } + if (IsRootDirectoryW(pathbuf, sizeof(pathbuf)/sizeof(pathbuf[0]))) { + info->type = PR_FILE_DIRECTORY; + info->size = 0; + /* + * These timestamps don't make sense for root directories. + */ + info->modifyTime = 0; + info->creationTime = 0; + return 0; + } + if (!_PR_IS_W_SLASH(pathbuf[len - 1])) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } else { + pathbuf[len - 1] = L'\0'; + hFindFile = findFirstFileW(pathbuf, &findFileData); + if (INVALID_HANDLE_VALUE == hFindFile) { + _PR_MD_MAP_OPENDIR_ERROR(GetLastError()); + return -1; + } + } + } + + FindClose(hFindFile); + + if (findFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + info->type = PR_FILE_DIRECTORY; + } else { + info->type = PR_FILE_FILE; + } + + info->size = findFileData.nFileSizeHigh; + info->size = (info->size << 32) + findFileData.nFileSizeLow; + + _PR_FileTimeToPRTime(&findFileData.ftLastWriteTime, &info->modifyTime); + + if (0 == findFileData.ftCreationTime.dwLowDateTime && + 0 == findFileData.ftCreationTime.dwHighDateTime) { + info->creationTime = info->modifyTime; + } else { + _PR_FileTimeToPRTime(&findFileData.ftCreationTime, + &info->creationTime); + } + + return 0; +} +/* ================ end of UTF16 Interfaces ================================ */ +#endif /* MOZ_UNICODE */ diff --git a/mozilla/nsprpub/pr/src/md/windows/w95sock.c b/mozilla/nsprpub/pr/src/md/windows/w95sock.c new file mode 100644 index 0000000..cb39da8 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w95sock.c @@ -0,0 +1,798 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* Win95 Sockets module + * + */ + +#include "primpl.h" + +#define READ_FD 1 +#define WRITE_FD 2 +#define CONNECT_FD 3 + +static PRInt32 socket_io_wait( + PROsfd osfd, + PRInt32 fd_type, + PRIntervalTime timeout); + + +/* --- SOCKET IO --------------------------------------------------------- */ + +/* + * we only want to call WSAIoctl() on Vista and later + * so don't pay for it at build time (and avoid including winsock2.h) + */ + +/* from ws2def.h */ +#define IOC_IN 0x80000000 /* copy in parameters */ +#define IOC_VENDOR 0x18000000 +#define _WSAIOW(x,y) (IOC_IN|(x)|(y)) +/* from MSWSockDef.h */ +#define SIO_SET_COMPATIBILITY_MODE _WSAIOW(IOC_VENDOR,300) + +typedef enum _WSA_COMPATIBILITY_BEHAVIOR_ID { + WsaBehaviorAll = 0, + WsaBehaviorReceiveBuffering, + WsaBehaviorAutoTuning +} WSA_COMPATIBILITY_BEHAVIOR_ID, *PWSA_COMPATIBILITY_BEHAVIOR_ID; + +/* from sdkddkver.h */ +#define NTDDI_WIN6 0x06000000 /* Windows Vista */ + +/* from winsock2.h */ +#define WSAEVENT HANDLE + +#define WSAOVERLAPPED OVERLAPPED +typedef struct _OVERLAPPED * LPWSAOVERLAPPED; + +typedef void (CALLBACK * LPWSAOVERLAPPED_COMPLETION_ROUTINE)( + IN DWORD dwError, + IN DWORD cbTransferred, + IN LPWSAOVERLAPPED lpOverlapped, + IN DWORD dwFlags +); + +typedef int (__stdcall * WSAIOCTLPROC) ( + SOCKET s, + DWORD dwIoControlCode, + LPVOID lpvInBuffer, + DWORD cbInBuffer, + LPVOID lpvOutBuffer, + DWORD cbOutBuffer, + LPDWORD lpcbBytesReturned, + LPWSAOVERLAPPED lpOverlapped, + LPWSAOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine +); + +typedef struct _WSA_COMPATIBILITY_MODE { + WSA_COMPATIBILITY_BEHAVIOR_ID BehaviorId; + ULONG TargetOsVersion; +} WSA_COMPATIBILITY_MODE, *PWSA_COMPATIBILITY_MODE; + +static HMODULE libWinsock2 = NULL; +static WSAIOCTLPROC wsaioctlProc = NULL; +static PRBool socketSetCompatMode = PR_FALSE; +static PRBool socketFixInet6RcvBuf = PR_FALSE; + +void _PR_MD_InitSockets(void) +{ + OSVERSIONINFO osvi; + + memset(&osvi, 0, sizeof(osvi)); + osvi.dwOSVersionInfoSize = sizeof(osvi); + GetVersionEx(&osvi); + + /* if Vista or later... */ + if (osvi.dwMajorVersion >= 6) + { + libWinsock2 = LoadLibraryW(L"Ws2_32.dll"); + if (libWinsock2) + { + wsaioctlProc = (WSAIOCTLPROC)GetProcAddress(libWinsock2, + "WSAIoctl"); + if (wsaioctlProc) + { + socketSetCompatMode = PR_TRUE; + } + } + } + else if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1) + { + /* if Windows XP (32-bit) */ + socketFixInet6RcvBuf = PR_TRUE; + } +} + +void _PR_MD_CleanupSockets(void) +{ + socketSetCompatMode = PR_FALSE; + wsaioctlProc = NULL; + if (libWinsock2) + { + FreeLibrary(libWinsock2); + libWinsock2 = NULL; + } +} + +PROsfd +_PR_MD_SOCKET(int af, int type, int flags) +{ + SOCKET sock; + u_long one = 1; + + sock = socket(af, type, flags); + + if (sock == INVALID_SOCKET ) + { + _PR_MD_MAP_SOCKET_ERROR(WSAGetLastError()); + return (PROsfd)sock; + } + + /* + ** Make the socket Non-Blocking + */ + if (ioctlsocket( sock, FIONBIO, &one) != 0) + { + PR_SetError(PR_UNKNOWN_ERROR, WSAGetLastError()); + closesocket(sock); + return -1; + } + + if ((af == AF_INET || af == AF_INET6) && + type == SOCK_STREAM && socketSetCompatMode) + { + WSA_COMPATIBILITY_MODE mode; + char dummy[4]; + int ret_dummy; + + mode.BehaviorId = WsaBehaviorAutoTuning; + mode.TargetOsVersion = NTDDI_WIN6; + if (wsaioctlProc(sock, SIO_SET_COMPATIBILITY_MODE, + (char *)&mode, sizeof(mode), + dummy, 4, &ret_dummy, 0, NULL) == SOCKET_ERROR) + { + int err = WSAGetLastError(); + PR_LOG(_pr_io_lm, PR_LOG_DEBUG, ("WSAIoctl() failed with %d", err)); + + /* SIO_SET_COMPATIBILITY_MODE may not be supported. + ** If the call to WSAIoctl() fails with WSAEOPNOTSUPP, + ** don't close the socket. + */ + } + } + + if (af == AF_INET6 && socketFixInet6RcvBuf) + { + int bufsize; + int len = sizeof(bufsize); + int rv; + + /* Windows XP 32-bit returns an error on getpeername() for AF_INET6 + * sockets if the receive buffer size is greater than 65535 before + * the connection is initiated. The default receive buffer size may + * be 128000 so fix it here to always be <= 65535. See bug 513659 + * and IBM DB2 support technote "Receive/Send IPv6 Socket Size + * Problem in Windows XP SP2 & SP3". + */ + rv = getsockopt(sock, SOL_SOCKET, SO_RCVBUF, (char*)&bufsize, &len); + if (rv == 0 && bufsize > 65535) + { + bufsize = 65535; + setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (char*)&bufsize, len); + } + } + + return (PROsfd)sock; +} + +/* +** _MD_CloseSocket() -- Close a socket +** +*/ +PRInt32 +_MD_CloseSocket(PROsfd osfd) +{ + PRInt32 rv; + + rv = closesocket((SOCKET) osfd ); + if (rv < 0) + _PR_MD_MAP_CLOSE_ERROR(WSAGetLastError()); + + return rv; +} + +PRInt32 +_MD_SocketAvailable(PRFileDesc *fd) +{ + PRInt32 result; + + if (ioctlsocket(fd->secret->md.osfd, FIONREAD, &result) < 0) { + PR_SetError(PR_BAD_DESCRIPTOR_ERROR, WSAGetLastError()); + return -1; + } + return result; +} + +PROsfd _MD_Accept( + PRFileDesc *fd, + PRNetAddr *raddr, + PRUint32 *rlen, + PRIntervalTime timeout ) +{ + PROsfd osfd = fd->secret->md.osfd; + SOCKET sock; + PRInt32 rv, err; + + while ((sock = accept(osfd, (struct sockaddr *) raddr, rlen)) == -1) + { + err = WSAGetLastError(); + if ((err == WSAEWOULDBLOCK) && (!fd->secret->nonblocking)) + { + if ((rv = socket_io_wait(osfd, READ_FD, timeout)) < 0) + { + break; + } + } + else + { + _PR_MD_MAP_ACCEPT_ERROR(err); + break; + } + } + return(sock); +} /* end _MD_accept() */ + +PRInt32 +_PR_MD_CONNECT(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv; + int err; + + if ((rv = connect(osfd, (struct sockaddr *) addr, addrlen)) == -1) + { + err = WSAGetLastError(); + if ((!fd->secret->nonblocking) && (err == WSAEWOULDBLOCK)) + { + rv = socket_io_wait(osfd, CONNECT_FD, timeout); + if ( rv < 0 ) + { + return(-1); + } + else + { + PR_ASSERT(rv > 0); + /* it's connected */ + return(0); + } + } + _PR_MD_MAP_CONNECT_ERROR(err); + } + return rv; +} + +PRInt32 +_PR_MD_BIND(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen) +{ + PRInt32 rv; + + rv = bind(fd->secret->md.osfd, (const struct sockaddr *)&(addr->inet), addrlen); + + if (rv == SOCKET_ERROR) { + _PR_MD_MAP_BIND_ERROR(WSAGetLastError()); + return -1; + } + + return 0; +} + +PRInt32 +_PR_MD_LISTEN(PRFileDesc *fd, PRIntn backlog) +{ + PRInt32 rv; + + rv = listen(fd->secret->md.osfd, backlog); + + if (rv == SOCKET_ERROR) { + _PR_MD_MAP_DEFAULT_ERROR(WSAGetLastError()); + return -1; + } + + return 0; +} + +PRInt32 +_PR_MD_RECV(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + int osflags; + + if (0 == flags) { + osflags = 0; + } else { + PR_ASSERT(PR_MSG_PEEK == flags); + osflags = MSG_PEEK; + } + while ((rv = recv( osfd, buf, amount, osflags)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, READ_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_RECV_ERROR(err); + break; + } + } /* end while() */ + return(rv); +} + +PRInt32 +_PR_MD_SEND(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRInt32 bytesSent = 0; + + while(bytesSent < amount ) + { + while ((rv = send( osfd, buf, amount, 0 )) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_SEND_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) + { + break; + } + if (bytesSent < amount) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + } + return bytesSent; +} + +PRInt32 +_PR_MD_SENDTO(PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags, + const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + PRInt32 bytesSent = 0; + + while(bytesSent < amount) + { + while ((rv = sendto( osfd, buf, amount, 0, (struct sockaddr *) addr, + addrlen)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if ( rv < 0 ) + { + return -1; + } + } + else + { + _PR_MD_MAP_SENDTO_ERROR(err); + return -1; + } + } + bytesSent += rv; + if (fd->secret->nonblocking) + { + break; + } + if (bytesSent < amount) + { + rv = socket_io_wait(osfd, WRITE_FD, timeout); + if (rv < 0) + { + return -1; + } + } + } + return bytesSent; +} + +PRInt32 +_PR_MD_RECVFROM(PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags, + PRNetAddr *addr, PRUint32 *addrlen, PRIntervalTime timeout) +{ + PROsfd osfd = fd->secret->md.osfd; + PRInt32 rv, err; + + while ((rv = recvfrom( osfd, buf, amount, 0, (struct sockaddr *) addr, + addrlen)) == -1) + { + if (((err = WSAGetLastError()) == WSAEWOULDBLOCK) + && (!fd->secret->nonblocking)) + { + rv = socket_io_wait(osfd, READ_FD, timeout); + if ( rv < 0) + { + return -1; + } + } + else + { + _PR_MD_MAP_RECVFROM_ERROR(err); + break; + } + } + return(rv); +} + +PRInt32 +_PR_MD_WRITEV(PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_size, PRIntervalTime timeout) +{ + int index; + int sent = 0; + int rv; + + for (index=0; index < iov_size; index++) + { + rv = _PR_MD_SEND(fd, iov[index].iov_base, iov[index].iov_len, 0, timeout); + if (rv > 0) + sent += rv; + if ( rv != iov[index].iov_len ) + { + if (rv < 0) + { + if (fd->secret->nonblocking + && (PR_GetError() == PR_WOULD_BLOCK_ERROR) + && (sent > 0)) + { + return sent; + } + else + { + return -1; + } + } + /* Only a nonblocking socket can have partial sends */ + PR_ASSERT(fd->secret->nonblocking); + return sent; + } + } + return sent; +} + +PRInt32 +_PR_MD_SHUTDOWN(PRFileDesc *fd, PRIntn how) +{ +PRInt32 rv; + + rv = shutdown(fd->secret->md.osfd, how); + if (rv < 0) + _PR_MD_MAP_SHUTDOWN_ERROR(WSAGetLastError()); + return rv; +} + +PRStatus +_PR_MD_GETSOCKNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + rv = getsockname((SOCKET)fd->secret->md.osfd, (struct sockaddr *)addr, len); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETSOCKNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_GETPEERNAME(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *len) +{ + PRInt32 rv; + + rv = getpeername((SOCKET)fd->secret->md.osfd, (struct sockaddr *)addr, len); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETPEERNAME_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_GETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, char* optval, PRInt32* optlen) +{ + PRInt32 rv; + + rv = getsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +PRStatus +_PR_MD_SETSOCKOPT(PRFileDesc *fd, PRInt32 level, PRInt32 optname, const char* optval, PRInt32 optlen) +{ + PRInt32 rv; + + rv = setsockopt((SOCKET)fd->secret->md.osfd, level, optname, optval, optlen); + if (rv==0) { + return PR_SUCCESS; + } else { + _PR_MD_MAP_SETSOCKOPT_ERROR(WSAGetLastError()); + return PR_FAILURE; + } +} + +void +_MD_MakeNonblock(PRFileDesc *f) +{ + return; /* do nothing */ +} + + + +/* + * socket_io_wait -- + * + * Wait for socket i/o, periodically checking for interrupt. + * + * This function returns 1 on success. On failure, it returns + * -1 and sets the error codes. It never returns 0. + */ +#define _PR_INTERRUPT_CHECK_INTERVAL_SECS 5 + +static PRInt32 socket_io_wait( + PROsfd osfd, + PRInt32 fd_type, + PRIntervalTime timeout) +{ + PRInt32 rv = -1; + struct timeval tv; + PRThread *me = _PR_MD_CURRENT_THREAD(); + PRIntervalTime elapsed, remaining; + PRBool wait_for_remaining; + fd_set rd_wr, ex; + int err, len; + + switch (timeout) { + case PR_INTERVAL_NO_WAIT: + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + break; + case PR_INTERVAL_NO_TIMEOUT: + /* + * This is a special case of the 'default' case below. + * Please see the comments there. + */ + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + FD_ZERO(&rd_wr); + FD_ZERO(&ex); + do { + FD_SET(osfd, &rd_wr); + FD_SET(osfd, &ex); + switch( fd_type ) + { + case READ_FD: + rv = _MD_SELECT(0, &rd_wr, NULL, NULL, &tv); + break; + case WRITE_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, NULL, &tv); + break; + case CONNECT_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, &ex, &tv); + break; + default: + PR_ASSERT(0); + break; + } /* end switch() */ + if (rv == -1 ) + { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } + if ( rv > 0 && fd_type == CONNECT_FD ) + { + /* + * Call Sleep(0) to work around a Winsock timing bug. + */ + Sleep(0); + if (FD_ISSET((SOCKET)osfd, &ex)) + { + len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &len) == SOCKET_ERROR) + { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return -1; + } + if (err != 0) + _PR_MD_MAP_CONNECT_ERROR(err); + else + PR_SetError(PR_UNKNOWN_ERROR, 0); + return -1; + } + if (FD_ISSET((SOCKET)osfd, &rd_wr)) + { + /* it's connected */ + return 1; + } + PR_ASSERT(0); + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + } while (rv == 0); + break; + default: + remaining = timeout; + FD_ZERO(&rd_wr); + FD_ZERO(&ex); + do { + /* + * We block in _MD_SELECT for at most + * _PR_INTERRUPT_CHECK_INTERVAL_SECS seconds, + * so that there is an upper limit on the delay + * before the interrupt bit is checked. + */ + wait_for_remaining = PR_TRUE; + tv.tv_sec = PR_IntervalToSeconds(remaining); + if (tv.tv_sec > _PR_INTERRUPT_CHECK_INTERVAL_SECS) { + wait_for_remaining = PR_FALSE; + tv.tv_sec = _PR_INTERRUPT_CHECK_INTERVAL_SECS; + tv.tv_usec = 0; + } else { + tv.tv_usec = PR_IntervalToMicroseconds( + remaining - + PR_SecondsToInterval(tv.tv_sec)); + } + FD_SET(osfd, &rd_wr); + FD_SET(osfd, &ex); + switch( fd_type ) + { + case READ_FD: + rv = _MD_SELECT(0, &rd_wr, NULL, NULL, &tv); + break; + case WRITE_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, NULL, &tv); + break; + case CONNECT_FD: + rv = _MD_SELECT(0, NULL, &rd_wr, &ex, &tv); + break; + default: + PR_ASSERT(0); + break; + } /* end switch() */ + if (rv == -1) + { + _PR_MD_MAP_SELECT_ERROR(WSAGetLastError()); + break; + } + if ( rv > 0 && fd_type == CONNECT_FD ) + { + /* + * Call Sleep(0) to work around a Winsock timing bug. + */ + Sleep(0); + if (FD_ISSET((SOCKET)osfd, &ex)) + { + len = sizeof(err); + if (getsockopt(osfd, SOL_SOCKET, SO_ERROR, + (char *) &err, &len) == SOCKET_ERROR) + { + _PR_MD_MAP_GETSOCKOPT_ERROR(WSAGetLastError()); + return -1; + } + if (err != 0) + _PR_MD_MAP_CONNECT_ERROR(err); + else + PR_SetError(PR_UNKNOWN_ERROR, 0); + return -1; + } + if (FD_ISSET((SOCKET)osfd, &rd_wr)) + { + /* it's connected */ + return 1; + } + PR_ASSERT(0); + } + if (_PR_PENDING_INTERRUPT(me)) { + me->flags &= ~_PR_INTERRUPT; + PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); + rv = -1; + break; + } + /* + * We loop again if _MD_SELECT timed out and the + * timeout deadline has not passed yet. + */ + if (rv == 0 ) + { + if (wait_for_remaining) { + elapsed = remaining; + } else { + elapsed = PR_SecondsToInterval(tv.tv_sec) + + PR_MicrosecondsToInterval(tv.tv_usec); + } + if (elapsed >= remaining) { + PR_SetError(PR_IO_TIMEOUT_ERROR, 0); + rv = -1; + break; + } else { + remaining = remaining - elapsed; + } + } + } while (rv == 0 ); + break; + } + return(rv); +} /* end socket_io_wait() */ diff --git a/mozilla/nsprpub/pr/src/md/windows/w95thred.c b/mozilla/nsprpub/pr/src/md/windows/w95thred.c new file mode 100644 index 0000000..f896626 --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/w95thred.c @@ -0,0 +1,316 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "primpl.h" +#include <process.h> /* for _beginthreadex() */ + +#if defined(_MSC_VER) && _MSC_VER <= 1200 +/* + * VC++ 6.0 doesn't have DWORD_PTR. + */ + +typedef DWORD DWORD_PTR; +#endif /* _MSC_VER <= 1200 */ + +/* --- globals ------------------------------------------------ */ +#ifdef _PR_USE_STATIC_TLS +__declspec(thread) struct PRThread *_pr_thread_last_run; +__declspec(thread) struct PRThread *_pr_currentThread; +__declspec(thread) struct _PRCPU *_pr_currentCPU; +#else +DWORD _pr_currentThreadIndex; +DWORD _pr_lastThreadIndex; +DWORD _pr_currentCPUIndex; +#endif +int _pr_intsOff = 0; +_PRInterruptTable _pr_interruptTable[] = { { 0 } }; + +void +_PR_MD_EARLY_INIT() +{ +#ifndef _PR_USE_STATIC_TLS + _pr_currentThreadIndex = TlsAlloc(); + _pr_lastThreadIndex = TlsAlloc(); + _pr_currentCPUIndex = TlsAlloc(); +#endif +} + +void _PR_MD_CLEANUP_BEFORE_EXIT(void) +{ + _PR_NT_FreeSids(); + + _PR_MD_CleanupSockets(); + + WSACleanup(); + +#ifndef _PR_USE_STATIC_TLS + TlsFree(_pr_currentThreadIndex); + TlsFree(_pr_lastThreadIndex); + TlsFree(_pr_currentCPUIndex); +#endif +} + +PRStatus +_PR_MD_INIT_THREAD(PRThread *thread) +{ + if (thread->flags & (_PR_PRIMORDIAL | _PR_ATTACHED)) { + /* + ** Warning: + ** -------- + ** NSPR requires a real handle to every thread. + ** GetCurrentThread() returns a pseudo-handle which + ** is not suitable for some thread operations (e.g., + ** suspending). Therefore, get a real handle from + ** the pseudo handle via DuplicateHandle(...) + */ + DuplicateHandle( + GetCurrentProcess(), /* Process of source handle */ + GetCurrentThread(), /* Pseudo Handle to dup */ + GetCurrentProcess(), /* Process of handle */ + &(thread->md.handle), /* resulting handle */ + 0L, /* access flags */ + FALSE, /* Inheritable */ + DUPLICATE_SAME_ACCESS); /* Options */ + } + + /* Create the blocking IO semaphore */ + thread->md.blocked_sema = CreateSemaphore(NULL, 0, 1, NULL); + if (thread->md.blocked_sema == NULL) + return PR_FAILURE; + else + return PR_SUCCESS; +} + +static unsigned __stdcall +pr_root(void *arg) +{ + PRThread *thread = (PRThread *)arg; + thread->md.start(thread); + return 0; +} + +PRStatus +_PR_MD_CREATE_THREAD(PRThread *thread, + void (*start)(void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize) +{ + + thread->md.start = start; + thread->md.handle = (HANDLE) _beginthreadex( + NULL, + thread->stack->stackSize, + pr_root, + (void *)thread, + CREATE_SUSPENDED, + &(thread->id)); + if(!thread->md.handle) { + return PR_FAILURE; + } + + thread->md.id = thread->id; + /* + * On windows, a thread is created with a thread priority of + * THREAD_PRIORITY_NORMAL. + */ + if (priority != PR_PRIORITY_NORMAL) { + _PR_MD_SET_PRIORITY(&(thread->md), priority); + } + + /* Activate the thread */ + if ( ResumeThread( thread->md.handle ) != -1) + return PR_SUCCESS; + + return PR_FAILURE; +} + +void +_PR_MD_YIELD(void) +{ + /* Can NT really yield at all? */ + Sleep(0); +} + +void +_PR_MD_SET_PRIORITY(_MDThread *thread, PRThreadPriority newPri) +{ + int nativePri; + BOOL rv; + + if (newPri < PR_PRIORITY_FIRST) { + newPri = PR_PRIORITY_FIRST; + } else if (newPri > PR_PRIORITY_LAST) { + newPri = PR_PRIORITY_LAST; + } + switch (newPri) { + case PR_PRIORITY_LOW: + nativePri = THREAD_PRIORITY_BELOW_NORMAL; + break; + case PR_PRIORITY_NORMAL: + nativePri = THREAD_PRIORITY_NORMAL; + break; + case PR_PRIORITY_HIGH: + nativePri = THREAD_PRIORITY_ABOVE_NORMAL; + break; + case PR_PRIORITY_URGENT: + nativePri = THREAD_PRIORITY_HIGHEST; + } + rv = SetThreadPriority(thread->handle, nativePri); + PR_ASSERT(rv); + if (!rv) { + PR_LOG(_pr_thread_lm, PR_LOG_MIN, + ("PR_SetThreadPriority: can't set thread priority\n")); + } + return; +} + +void +_PR_MD_CLEAN_THREAD(PRThread *thread) +{ + BOOL rv; + + if (thread->md.blocked_sema) { + rv = CloseHandle(thread->md.blocked_sema); + PR_ASSERT(rv); + thread->md.blocked_sema = 0; + } + + if (thread->md.handle) { + rv = CloseHandle(thread->md.handle); + PR_ASSERT(rv); + thread->md.handle = 0; + } +} + +void +_PR_MD_EXIT_THREAD(PRThread *thread) +{ + _PR_MD_CLEAN_THREAD(thread); + _PR_MD_SET_CURRENT_THREAD(NULL); +} + + +void +_PR_MD_EXIT(PRIntn status) +{ + _exit(status); +} + +PRInt32 _PR_MD_SETTHREADAFFINITYMASK(PRThread *thread, PRUint32 mask ) +{ +#ifdef WINCE + SetLastError(ERROR_CALL_NOT_IMPLEMENTED); + return -1; +#else + DWORD_PTR rv; + + rv = SetThreadAffinityMask(thread->md.handle, mask); + + return rv?0:-1; +#endif +} + +PRInt32 _PR_MD_GETTHREADAFFINITYMASK(PRThread *thread, PRUint32 *mask) +{ +#ifdef WINCE + SetLastError(ERROR_CALL_NOT_IMPLEMENTED); + return -1; +#else + BOOL rv; + DWORD_PTR process_mask; + DWORD_PTR system_mask; + + rv = GetProcessAffinityMask(GetCurrentProcess(), + &process_mask, &system_mask); + if (rv) + *mask = (PRUint32)process_mask; + + return rv?0:-1; +#endif +} + +void +_PR_MD_SUSPEND_CPU(_PRCPU *cpu) +{ + _PR_MD_SUSPEND_THREAD(cpu->thread); +} + +void +_PR_MD_RESUME_CPU(_PRCPU *cpu) +{ + _PR_MD_RESUME_THREAD(cpu->thread); +} + +void +_PR_MD_SUSPEND_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + DWORD previousSuspendCount; + /* XXXMB - SuspendThread() is not a blocking call; how do we + * know when the thread is *REALLY* suspended? + */ + previousSuspendCount = SuspendThread(thread->md.handle); + PR_ASSERT(previousSuspendCount == 0); + } +} + +void +_PR_MD_RESUME_THREAD(PRThread *thread) +{ + if (_PR_IS_NATIVE_THREAD(thread)) { + DWORD previousSuspendCount; + previousSuspendCount = ResumeThread(thread->md.handle); + PR_ASSERT(previousSuspendCount == 1); + } +} + +PRThread* +_MD_CURRENT_THREAD(void) +{ +PRThread *thread; + + thread = _MD_GET_ATTACHED_THREAD(); + + if (NULL == thread) { + thread = _PRI_AttachThread( + PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL, 0); + } + PR_ASSERT(thread != NULL); + return thread; +} diff --git a/mozilla/nsprpub/pr/src/md/windows/win32_errors.c b/mozilla/nsprpub/pr/src/md/windows/win32_errors.c new file mode 100644 index 0000000..ced1b7a --- /dev/null +++ b/mozilla/nsprpub/pr/src/md/windows/win32_errors.c @@ -0,0 +1,565 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is the Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998-2000 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +#include "prerror.h" +#include "prlog.h" +#include <errno.h> +#include <windows.h> + +/* + * On Win32, we map three kinds of error codes: + * - GetLastError(): for Win32 functions + * - WSAGetLastError(): for Winsock functions + * - errno: for standard C library functions + * + * GetLastError() and WSAGetLastError() return error codes in + * non-overlapping ranges, so their error codes (ERROR_* and + * WSAE*) can be mapped by the same function. On the other hand, + * errno and GetLastError() have overlapping ranges, so we need + * to use a separate function to map errno. + * + * We do not check for WSAEINPROGRESS and WSAEINTR because we do not + * use blocking Winsock 1.1 calls. + * + * Except for the 'socket' call, we do not check for WSAEINITIALISED. + * It is assumed that if Winsock is not initialized, that fact will + * be detected at the time we create new sockets. + */ + +static void _MD_win32_map_default_errno(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case EACCES: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case ENOENT: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + default: + prError = PR_UNKNOWN_ERROR; + break; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_default_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case ERROR_ACCESS_DENIED: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case ERROR_ALREADY_EXISTS: + prError = PR_FILE_EXISTS_ERROR; + break; + case ERROR_CALL_NOT_IMPLEMENTED: + prError = PR_NOT_IMPLEMENTED_ERROR; + break; + case ERROR_DISK_CORRUPT: + prError = PR_IO_ERROR; + break; + case ERROR_DISK_FULL: + prError = PR_NO_DEVICE_SPACE_ERROR; + break; + case ERROR_DISK_OPERATION_FAILED: + prError = PR_IO_ERROR; + break; + case ERROR_DRIVE_LOCKED: + prError = PR_FILE_IS_LOCKED_ERROR; + break; + case ERROR_FILENAME_EXCED_RANGE: + prError = PR_NAME_TOO_LONG_ERROR; + break; + case ERROR_FILE_CORRUPT: + prError = PR_IO_ERROR; + break; + case ERROR_FILE_EXISTS: + prError = PR_FILE_EXISTS_ERROR; + break; + case ERROR_FILE_INVALID: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + case ERROR_FILE_NOT_FOUND: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + case ERROR_HANDLE_DISK_FULL: + prError = PR_NO_DEVICE_SPACE_ERROR; + break; + case ERROR_INVALID_ADDRESS: + prError = PR_ACCESS_FAULT_ERROR; + break; + case ERROR_INVALID_HANDLE: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + case ERROR_INVALID_NAME: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case ERROR_INVALID_PARAMETER: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case ERROR_INVALID_USER_BUFFER: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case ERROR_LOCKED: + prError = PR_FILE_IS_LOCKED_ERROR; + break; + case ERROR_NETNAME_DELETED: + prError = PR_CONNECT_RESET_ERROR; + break; + case ERROR_NOACCESS: + prError = PR_ACCESS_FAULT_ERROR; + break; + case ERROR_NOT_ENOUGH_MEMORY: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case ERROR_NOT_ENOUGH_QUOTA: + prError = PR_OUT_OF_MEMORY_ERROR; + break; + case ERROR_NOT_READY: + prError = PR_IO_ERROR; + break; + case ERROR_NO_MORE_FILES: + prError = PR_NO_MORE_FILES_ERROR; + break; + case ERROR_OPEN_FAILED: + prError = PR_IO_ERROR; + break; + case ERROR_OPEN_FILES: + prError = PR_IO_ERROR; + break; + case ERROR_OPERATION_ABORTED: + prError = PR_OPERATION_ABORTED_ERROR; + break; + case ERROR_OUTOFMEMORY: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case ERROR_PATH_BUSY: + prError = PR_IO_ERROR; + break; + case ERROR_PATH_NOT_FOUND: + prError = PR_FILE_NOT_FOUND_ERROR; + break; + case ERROR_SEEK_ON_DEVICE: + prError = PR_IO_ERROR; + break; + case ERROR_SHARING_VIOLATION: + prError = PR_FILE_IS_BUSY_ERROR; + break; + case ERROR_STACK_OVERFLOW: + prError = PR_ACCESS_FAULT_ERROR; + break; + case ERROR_TOO_MANY_OPEN_FILES: + prError = PR_SYS_DESC_TABLE_FULL_ERROR; + break; + case ERROR_WRITE_PROTECT: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case WSAEACCES: + prError = PR_NO_ACCESS_RIGHTS_ERROR; + break; + case WSAEADDRINUSE: + prError = PR_ADDRESS_IN_USE_ERROR; + break; + case WSAEADDRNOTAVAIL: + prError = PR_ADDRESS_NOT_AVAILABLE_ERROR; + break; + case WSAEAFNOSUPPORT: + prError = PR_ADDRESS_NOT_SUPPORTED_ERROR; + break; + case WSAEALREADY: + prError = PR_ALREADY_INITIATED_ERROR; + break; + case WSAEBADF: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + case WSAECONNABORTED: + prError = PR_CONNECT_ABORTED_ERROR; + break; + case WSAECONNREFUSED: + prError = PR_CONNECT_REFUSED_ERROR; + break; + case WSAECONNRESET: + prError = PR_CONNECT_RESET_ERROR; + break; + case WSAEDESTADDRREQ: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAEFAULT: + prError = PR_ACCESS_FAULT_ERROR; + break; + case WSAEHOSTUNREACH: + prError = PR_HOST_UNREACHABLE_ERROR; + break; + case WSAEINVAL: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAEISCONN: + prError = PR_IS_CONNECTED_ERROR; + break; + case WSAEMFILE: + prError = PR_PROC_DESC_TABLE_FULL_ERROR; + break; + case WSAEMSGSIZE: + prError = PR_BUFFER_OVERFLOW_ERROR; + break; + case WSAENETDOWN: + prError = PR_NETWORK_DOWN_ERROR; + break; + case WSAENETRESET: + prError = PR_CONNECT_ABORTED_ERROR; + break; + case WSAENETUNREACH: + prError = PR_NETWORK_UNREACHABLE_ERROR; + break; + case WSAENOBUFS: + prError = PR_INSUFFICIENT_RESOURCES_ERROR; + break; + case WSAENOPROTOOPT: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAENOTCONN: + prError = PR_NOT_CONNECTED_ERROR; + break; + case WSAENOTSOCK: + prError = PR_NOT_SOCKET_ERROR; + break; + case WSAEOPNOTSUPP: + prError = PR_OPERATION_NOT_SUPPORTED_ERROR; + break; + case WSAEPROTONOSUPPORT: + prError = PR_PROTOCOL_NOT_SUPPORTED_ERROR; + break; + case WSAEPROTOTYPE: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAESHUTDOWN: + prError = PR_SOCKET_SHUTDOWN_ERROR; + break; + case WSAESOCKTNOSUPPORT: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + case WSAETIMEDOUT: + prError = PR_CONNECT_ABORTED_ERROR; + break; + case WSAEWOULDBLOCK: + prError = PR_WOULD_BLOCK_ERROR; + break; + default: + prError = PR_UNKNOWN_ERROR; + break; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_opendir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_closedir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_unix_readdir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_delete_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +/* The error code for stat() is in errno. */ +void _MD_win32_map_stat_error(PRInt32 err) +{ + _MD_win32_map_default_errno(err); +} + +void _MD_win32_map_fstat_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_rename_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +/* The error code for access() is in errno. */ +void _MD_win32_map_access_error(PRInt32 err) +{ + _MD_win32_map_default_errno(err); +} + +void _MD_win32_map_mkdir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_rmdir_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_read_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_transmitfile_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_write_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_lseek_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_fsync_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +/* + * For both CloseHandle() and closesocket(). + */ +void _MD_win32_map_close_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_socket_error(PRInt32 err) +{ + PR_ASSERT(err != WSANOTINITIALISED); + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_recv_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_recvfrom_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_send_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEMSGSIZE: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_sendto_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEMSGSIZE: + prError = PR_INVALID_ARGUMENT_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_accept_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEOPNOTSUPP: + prError = PR_NOT_TCP_SOCKET_ERROR; + break; + case WSAEINVAL: + prError = PR_INVALID_STATE_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_acceptex_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_connect_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEWOULDBLOCK: + prError = PR_IN_PROGRESS_ERROR; + break; + case WSAEINVAL: + prError = PR_ALREADY_INITIATED_ERROR; + break; + case WSAETIMEDOUT: + prError = PR_IO_TIMEOUT_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_bind_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEINVAL: + prError = PR_SOCKET_ADDRESS_IS_BOUND_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_listen_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEOPNOTSUPP: + prError = PR_NOT_TCP_SOCKET_ERROR; + break; + case WSAEINVAL: + prError = PR_INVALID_STATE_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_shutdown_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_getsockname_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAEINVAL: + prError = PR_INVALID_STATE_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_getpeername_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_getsockopt_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_setsockopt_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_open_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +void _MD_win32_map_gethostname_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} + +/* Win32 select() only works on sockets. So in this +** context, WSAENOTSOCK is equivalent to EBADF on Unix. +*/ +void _MD_win32_map_select_error(PRInt32 err) +{ + PRErrorCode prError; + + switch (err) { + case WSAENOTSOCK: + prError = PR_BAD_DESCRIPTOR_ERROR; + break; + default: + _MD_win32_map_default_error(err); + return; + } + PR_SetError(prError, err); +} + +void _MD_win32_map_lockf_error(PRInt32 err) +{ + _MD_win32_map_default_error(err); +} |