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author | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2012-01-08 11:29:59 +0100 |
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committer | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2012-01-08 11:30:45 +0100 |
commit | 52400b5ae463c90f83538ad43a76d61ced97f71d (patch) | |
tree | 90ab43baeaa0d3129dc1899cb6bcf5759c8a7386 /gl/select.c | |
parent | 3dc1f4ad374c3e986fb3ab3c78442e9adfcce018 (diff) | |
download | gnutls-52400b5ae463c90f83538ad43a76d61ced97f71d.tar.gz |
Updated gnulib and added usleep and getaddrinfo modules.
Diffstat (limited to 'gl/select.c')
-rw-r--r-- | gl/select.c | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/gl/select.c b/gl/select.c index 236b951443..8bcfef0646 100644 --- a/gl/select.c +++ b/gl/select.c @@ -1,7 +1,7 @@ /* Emulation for select(2) Contributed by Paolo Bonzini. - Copyright 2008-2011 Free Software Foundation, Inc. + Copyright 2008-2012 Free Software Foundation, Inc. This file is part of gnulib. @@ -24,7 +24,7 @@ #include <assert.h> #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ -/* Native Win32. */ +/* Native Windows. */ #include <sys/types.h> #include <errno.h> @@ -78,6 +78,8 @@ typedef DWORD (WINAPI *PNtQueryInformationFile) #define PIPE_BUF 512 #endif +/* Optimized test whether a HANDLE refers to a console. + See <http://lists.gnu.org/archive/html/bug-gnulib/2009-08/msg00065.html>. */ #define IsConsoleHandle(h) (((long) (h) & 3) == 3) static BOOL @@ -95,11 +97,14 @@ IsSocketHandle (HANDLE h) return ev.lNetworkEvents != 0xDEADBEEF; } -/* Compute output fd_sets for libc descriptor FD (whose Win32 handle is H). */ +/* Compute output fd_sets for libc descriptor FD (whose Windows handle is + H). */ static int -win32_poll_handle (HANDLE h, int fd, struct bitset *rbits, struct bitset *wbits, - struct bitset *xbits) +windows_poll_handle (HANDLE h, int fd, + struct bitset *rbits, + struct bitset *wbits, + struct bitset *xbits) { BOOL read, write, except; int i, ret; @@ -140,11 +145,12 @@ win32_poll_handle (HANDLE h, int fd, struct bitset *rbits, struct bitset *wbits, { /* It was the write-end of the pipe. Check if it is writable. If NtQueryInformationFile fails, optimistically assume the pipe is - writable. This could happen on Win9x, where NtQueryInformationFile - is not available, or if we inherit a pipe that doesn't permit - FILE_READ_ATTRIBUTES access on the write end (I think this should - not happen since WinXP SP2; WINE seems fine too). Otherwise, - ensure that enough space is available for atomic writes. */ + writable. This could happen on Windows 9x, where + NtQueryInformationFile is not available, or if we inherit a pipe + that doesn't permit FILE_READ_ATTRIBUTES access on the write end + (I think this should not happen since Windows XP SP2; WINE seems + fine too). Otherwise, ensure that enough space is available for + atomic writes. */ memset (&iosb, 0, sizeof (iosb)); memset (&fpli, 0, sizeof (fpli)); @@ -369,7 +375,7 @@ rpl_select (int nfds, fd_set *rfds, fd_set *wfds, fd_set *xfds, /* Poll now. If we get an event, do not wait below. */ if (wait_timeout != 0 - && win32_poll_handle (h, i, &rbits, &wbits, &xbits)) + && windows_poll_handle (h, i, &rbits, &wbits, &xbits)) wait_timeout = 0; } } @@ -446,7 +452,7 @@ rpl_select (int nfds, fd_set *rfds, fd_set *wfds, fd_set *xfds, { /* Not a socket. */ nhandles++; - win32_poll_handle (h, i, &rbits, &wbits, &xbits); + windows_poll_handle (h, i, &rbits, &wbits, &xbits); if (rbits.out[i / CHAR_BIT] & (1 << (i & (CHAR_BIT - 1)))) { rc++; @@ -468,7 +474,7 @@ rpl_select (int nfds, fd_set *rfds, fd_set *wfds, fd_set *xfds, return rc; } -#else /* ! Native Win32. */ +#else /* ! Native Windows. */ #include <sys/select.h> |