diff options
Diffstat (limited to 'sysdeps/pthread/tst-cnd-timedwait.c')
-rw-r--r-- | sysdeps/pthread/tst-cnd-timedwait.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-cnd-timedwait.c b/sysdeps/pthread/tst-cnd-timedwait.c new file mode 100644 index 0000000000..05e3a051a5 --- /dev/null +++ b/sysdeps/pthread/tst-cnd-timedwait.c @@ -0,0 +1,84 @@ +/* C11 threads condition timed wait variable tests. + Copyright (C) 2018-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 + <https://www.gnu.org/licenses/>. */ + +#include <threads.h> +#include <stdio.h> +#include <unistd.h> + +#include <support/check.h> + +/* Shared condition variable between child and parent. */ +static cnd_t cond; + +/* Mutex needed to signal and wait threads. */ +static mtx_t mutex; + +static int +signal_parent (void *arg) +{ + /* Acquire the lock so that cnd_signal does not run until + cnd_timedwait has been called. */ + if (mtx_lock (&mutex) != thrd_success) + FAIL_EXIT1 ("mtx_lock failed"); + if (cnd_signal (&cond) != thrd_success) + FAIL_EXIT1 ("cnd_signal failed"); + if (mtx_unlock (&mutex) != thrd_success) + FAIL_EXIT1 ("mtx_unlock"); + + thrd_exit (thrd_success); +} + +static int +do_test (void) +{ + thrd_t id; + struct timespec w_time; + + if (cnd_init (&cond) != thrd_success) + FAIL_EXIT1 ("cnd_init failed"); + if (mtx_init (&mutex, mtx_plain) != thrd_success) + FAIL_EXIT1 ("mtx_init failed"); + if (mtx_lock (&mutex) != thrd_success) + FAIL_EXIT1 ("mtx_lock failed"); + + if (clock_gettime (CLOCK_REALTIME, &w_time) != 0) + FAIL_EXIT1 ("clock_gettime failed"); + + /* This needs to be sufficiently long to prevent the cnd_timedwait + call from timing out. */ + w_time.tv_sec += 3600; + + if (thrd_create (&id, signal_parent, NULL) != thrd_success) + FAIL_EXIT1 ("thrd_create failed"); + + if (cnd_timedwait (&cond, &mutex, &w_time) != thrd_success) + FAIL_EXIT1 ("cnd_timedwait failed"); + + if (thrd_join (id, NULL) != thrd_success) + FAIL_EXIT1 ("thrd_join failed"); + + if (mtx_unlock (&mutex) != thrd_success) + FAIL_EXIT1 ("mtx_unlock"); + + mtx_destroy (&mutex); + cnd_destroy (&cond); + + return 0; +} + +#include <support/test-driver.c> |