mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 17:11:06 +00:00
b05de10400
so it gets shared by nptl and htl. Also add htl versions of thrd_current and thrd_yield. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/* C11 threads condition broadcast 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 <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
#include <support/check.h>
|
|
|
|
/* Condition variable where child threads will wait. */
|
|
static cnd_t cond;
|
|
|
|
/* Mutex to control wait on cond. */
|
|
static mtx_t mutex;
|
|
|
|
/* Number of threads which have entered the cnd_wait region. */
|
|
static unsigned int waiting_threads;
|
|
|
|
/* Code executed by each thread. */
|
|
static int
|
|
child_wait (void* data)
|
|
{
|
|
/* Wait until parent thread sends broadcast here. */
|
|
mtx_lock (&mutex);
|
|
++waiting_threads;
|
|
cnd_wait (&cond, &mutex);
|
|
mtx_unlock (&mutex);
|
|
|
|
thrd_exit (thrd_success);
|
|
}
|
|
|
|
#define N 5
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
thrd_t ids[N];
|
|
unsigned char i;
|
|
|
|
if (cnd_init (&cond) != thrd_success)
|
|
FAIL_EXIT1 ("cnd_init failed");
|
|
if (mtx_init (&mutex, mtx_plain) != thrd_success)
|
|
FAIL_EXIT1 ("mtx_init failed");
|
|
|
|
/* Create N new threads. */
|
|
for (i = 0; i < N; ++i)
|
|
{
|
|
if (thrd_create (&ids[i], child_wait, NULL) != thrd_success)
|
|
FAIL_EXIT1 ("thrd_create failed");
|
|
}
|
|
|
|
/* Wait for other threads to reach their wait func. */
|
|
while (true)
|
|
{
|
|
mtx_lock (&mutex);
|
|
TEST_VERIFY (waiting_threads <= N);
|
|
bool done_waiting = waiting_threads == N;
|
|
mtx_unlock (&mutex);
|
|
if (done_waiting)
|
|
break;
|
|
thrd_sleep (&((struct timespec){.tv_nsec = 100 * 1000 * 1000}), NULL);
|
|
}
|
|
|
|
mtx_lock (&mutex);
|
|
if (cnd_broadcast (&cond) != thrd_success)
|
|
FAIL_EXIT1 ("cnd_broadcast failed");
|
|
mtx_unlock (&mutex);
|
|
|
|
for (i = 0; i < N; ++i)
|
|
{
|
|
if (thrd_join (ids[i], NULL) != thrd_success)
|
|
FAIL_EXIT1 ("thrd_join failed");
|
|
}
|
|
|
|
mtx_destroy (&mutex);
|
|
cnd_destroy (&cond);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|