diff options
Diffstat (limited to 'REORG.TODO/nptl/tst-sem5.c')
-rw-r--r-- | REORG.TODO/nptl/tst-sem5.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/tst-sem5.c b/REORG.TODO/nptl/tst-sem5.c new file mode 100644 index 0000000000..0aafed2b07 --- /dev/null +++ b/REORG.TODO/nptl/tst-sem5.c @@ -0,0 +1,93 @@ +/* Copyright (C) 2002-2017 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; + } + + struct timespec ts2; + if (clock_gettime (CLOCK_REALTIME, &ts2) != 0) + { + puts ("clock_gettime failed"); + return 1; + } + + if (ts2.tv_sec < ts.tv_sec + || (ts2.tv_sec == ts.tv_sec && ts2.tv_nsec < ts.tv_nsec)) + { + puts ("timeout too short"); + return 1; + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |