Mercurial > gnulib
view lib/glthread/threadlib.c @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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/* Multithreading primitives. Copyright (C) 2005-2013 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see <http://www.gnu.org/licenses/>. */ /* Written by Bruno Haible <bruno@clisp.org>, 2005. */ #include <config.h> /* ========================================================================= */ #if USE_POSIX_THREADS /* Use the POSIX threads library. */ # include <pthread.h> # include <stdlib.h> # if PTHREAD_IN_USE_DETECTION_HARD /* The function to be executed by a dummy thread. */ static void * dummy_thread_func (void *arg) { return arg; } int glthread_in_use (void) { static int tested; static int result; /* 1: linked with -lpthread, 0: only with libc */ if (!tested) { pthread_t thread; if (pthread_create (&thread, NULL, dummy_thread_func, NULL) != 0) /* Thread creation failed. */ result = 0; else { /* Thread creation works. */ void *retval; if (pthread_join (thread, &retval) != 0) abort (); result = 1; } tested = 1; } return result; } # endif #endif /* ========================================================================= */ /* This declaration is solely to ensure that after preprocessing this file is never empty. */ typedef int dummy;