/* Copyright (C) 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <errno.h> #include <semaphore.h> #include <stdio.h> #include <time.h> #include <unistd.h> #include <sys/time.h> static int do_test (void) { sem_t s; struct timespec ts; struct timeval tv; if (sem_init (&s, 0, 1) == -1) { puts ("sem_init failed"); return 1; } if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1) { puts ("sem_wait failed"); return 1; } if (gettimeofday (&tv, NULL) != 0) { puts ("gettimeofday failed"); return 1; } TIMEVAL_TO_TIMESPEC (&tv, &ts); /* We wait for half a second. */ ts.tv_nsec += 500000000; if (ts.tv_nsec >= 1000000000) { ++ts.tv_sec; ts.tv_nsec -= 1000000000; } errno = 0; if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1) { puts ("sem_timedwait succeeded"); return 1; } if (errno != ETIMEDOUT) { printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n", errno); return 1; } return 0; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"