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Diffstat (limited to 'mozilla/nsprpub/pr/include/md/_nspr_pthread.h')
| -rw-r--r-- | mozilla/nsprpub/pr/include/md/_nspr_pthread.h | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/mozilla/nsprpub/pr/include/md/_nspr_pthread.h b/mozilla/nsprpub/pr/include/md/_nspr_pthread.h new file mode 100644 index 0000000..b7a0481 --- /dev/null +++ b/mozilla/nsprpub/pr/include/md/_nspr_pthread.h @@ -0,0 +1,283 @@ +/* -*- 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 ***** */ + +#ifndef nspr_pthread_defs_h___ +#define nspr_pthread_defs_h___ + +#include <pthread.h> +#include "prthread.h" + +#if defined(PTHREADS_USER) +/* +** Thread Local Storage +*/ +extern pthread_key_t current_thread_key; +extern pthread_key_t current_cpu_key; +extern pthread_key_t last_thread_key; +extern pthread_key_t intsoff_key; + +#define _MD_CURRENT_THREAD() \ + ((struct PRThread *) pthread_getspecific(current_thread_key)) +#define _MD_CURRENT_CPU() \ + ((struct _PRCPU *) pthread_getspecific(current_cpu_key)) +#define _MD_LAST_THREAD() \ + ((struct PRThread *) pthread_getspecific(last_thread_key)) + +#define _MD_SET_CURRENT_THREAD(newval) \ + pthread_setspecific(current_thread_key, (void *)newval) + +#define _MD_SET_CURRENT_CPU(newval) \ + pthread_setspecific(current_cpu_key, (void *)newval) + +#define _MD_SET_LAST_THREAD(newval) \ + pthread_setspecific(last_thread_key, (void *)newval) + +#define _MD_SET_INTSOFF(_val) +#define _MD_GET_INTSOFF() 1 + +/* +** Initialize the thread context preparing it to execute _main. +*/ +#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ + PR_BEGIN_MACRO \ + *status = PR_TRUE; \ + if (SAVE_CONTEXT(_thread)) { \ + (*_main)(); \ + } \ + _MD_SET_THR_SP(_thread, _sp); \ + _thread->no_sched = 0; \ + PR_END_MACRO + +#define _MD_SWITCH_CONTEXT(_thread) \ + PR_BEGIN_MACRO \ + PR_ASSERT(_thread->no_sched); \ + if (!SAVE_CONTEXT(_thread)) { \ + (_thread)->md.errcode = errno; \ + _MD_SET_LAST_THREAD(_thread); \ + _PR_Schedule(); \ + } else { \ + (_MD_LAST_THREAD())->no_sched = 0; \ + } \ + PR_END_MACRO + +/* +** Restore a thread context, saved by _MD_SWITCH_CONTEXT +*/ +#define _MD_RESTORE_CONTEXT(_thread) \ + PR_BEGIN_MACRO \ + errno = (_thread)->md.errcode; \ + _MD_SET_CURRENT_THREAD(_thread); \ + _thread->no_sched = 1; \ + GOTO_CONTEXT(_thread); \ + PR_END_MACRO + + +/* Machine-dependent (MD) data structures */ + +struct _MDThread { + jmp_buf jb; + int id; + int errcode; + pthread_t pthread; + pthread_mutex_t pthread_mutex; + pthread_cond_t pthread_cond; + int wait; +}; + +struct _MDThreadStack { + PRInt8 notused; +}; + +struct _MDLock { + pthread_mutex_t mutex; +}; + +struct _MDSemaphore { + PRInt8 notused; +}; + +struct _MDCVar { + pthread_mutex_t mutex; +}; + +struct _MDSegment { + PRInt8 notused; +}; + +/* + * md-specific cpu structure field + */ +#define _PR_MD_MAX_OSFD FD_SETSIZE + +struct _MDCPU_Unix { + PRCList ioQ; + PRUint32 ioq_timeout; + PRInt32 ioq_max_osfd; + PRInt32 ioq_osfd_cnt; +#ifndef _PR_USE_POLL + fd_set fd_read_set, fd_write_set, fd_exception_set; + PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], + fd_exception_cnt[_PR_MD_MAX_OSFD]; +#else + struct pollfd *ioq_pollfds; + int ioq_pollfds_size; +#endif /* _PR_USE_POLL */ +}; + +#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) +#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) +#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) +#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) +#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) +#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) +#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) +#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) +#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) +#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) +#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) +#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) +#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) + +#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 + +struct _MDCPU { + jmp_buf jb; + pthread_t pthread; + struct _MDCPU_Unix md_unix; +}; + +/* +#define _MD_NEW_LOCK(lock) PR_SUCCESS +#define _MD_FREE_LOCK(lock) +#define _MD_LOCK(lock) +#define _MD_UNLOCK(lock) +*/ + +extern pthread_mutex_t _pr_heapLock; + +#define _PR_LOCK(lock) pthread_mutex_lock(lock) + +#define _PR_UNLOCK(lock) pthread_mutex_unlock(lock) + + +#define _PR_LOCK_HEAP() { \ + if (_pr_primordialCPU) { \ + _PR_LOCK(_pr_heapLock); \ + } + +#define _PR_UNLOCK_HEAP() if (_pr_primordialCPU) { \ + _PR_UNLOCK(_pr_heapLock); \ + } \ + } + +NSPR_API(PRStatus) _MD_NEW_LOCK(struct _MDLock *md); +NSPR_API(void) _MD_FREE_LOCK(struct _MDLock *lockp); + +#define _MD_LOCK(_lockp) _PR_LOCK(&(_lockp)->mutex) +#define _MD_UNLOCK(_lockp) _PR_UNLOCK(&(_lockp)->mutex) + +#define _MD_INIT_IO() +#define _MD_IOQ_LOCK() +#define _MD_IOQ_UNLOCK() +#define _MD_CHECK_FOR_EXIT() + +NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread); +#define _MD_INIT_THREAD _MD_InitThread +#define _MD_INIT_ATTACHED_THREAD _MD_InitThread + +NSPR_API(void) _MD_ExitThread(struct PRThread *thread); +#define _MD_EXIT_THREAD _MD_ExitThread + +NSPR_API(void) _MD_SuspendThread(struct PRThread *thread); +#define _MD_SUSPEND_THREAD _MD_SuspendThread + +NSPR_API(void) _MD_ResumeThread(struct PRThread *thread); +#define _MD_RESUME_THREAD _MD_ResumeThread + +NSPR_API(void) _MD_SuspendCPU(struct _PRCPU *thread); +#define _MD_SUSPEND_CPU _MD_SuspendCPU + +NSPR_API(void) _MD_ResumeCPU(struct _PRCPU *thread); +#define _MD_RESUME_CPU _MD_ResumeCPU + +#define _MD_BEGIN_SUSPEND_ALL() +#define _MD_END_SUSPEND_ALL() +#define _MD_BEGIN_RESUME_ALL() +#define _MD_END_RESUME_ALL() + +NSPR_API(void) _MD_EarlyInit(void); +#define _MD_EARLY_INIT _MD_EarlyInit + +#define _MD_FINAL_INIT _PR_UnixInit + +NSPR_API(void) _MD_InitLocks(void); +#define _MD_INIT_LOCKS _MD_InitLocks + +NSPR_API(void) _MD_CleanThread(struct PRThread *thread); +#define _MD_CLEAN_THREAD _MD_CleanThread + +NSPR_API(PRStatus) _MD_CreateThread( + struct PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize); +#define _MD_CREATE_THREAD _MD_CreateThread + +extern void _MD_CleanupBeforeExit(void); +#define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit + +NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu); +#define _MD_INIT_RUNNING_CPU _MD_InitRunningCPU + +/* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and + * awaken a thread which is waiting on a lock or cvar. + */ +NSPR_API(PRStatus) _MD_wait(struct PRThread *, PRIntervalTime timeout); +#define _MD_WAIT _MD_wait + +NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *); +#define _MD_WAKEUP_WAITER _MD_WakeupWaiter + +NSPR_API(void) _MD_SetPriority(struct _MDThread *thread, + PRThreadPriority newPri); +#define _MD_SET_PRIORITY _MD_SetPriority + +#endif /* PTHREADS_USER */ + +#endif /* nspr_pthread_defs_h___ */ |