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Diffstat (limited to 'nptl/tst-sem5.c')
-rw-r--r-- | nptl/tst-sem5.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/nptl/tst-sem5.c b/nptl/tst-sem5.c new file mode 100644 index 0000000..d76c265 --- /dev/null +++ b/nptl/tst-sem5.c @@ -0,0 +1,80 @@ +/* Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#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 (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" |