mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-18 12:22:10 +03:00
112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "uv.h"
|
|
#include "task.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
typedef struct {
|
|
uv_mutex_t mutex;
|
|
uv_sem_t sem;
|
|
int delay;
|
|
volatile int posted;
|
|
} worker_config;
|
|
|
|
|
|
static void worker(void* arg) {
|
|
worker_config* c = arg;
|
|
|
|
if (c->delay)
|
|
uv_sleep(c->delay);
|
|
|
|
uv_mutex_lock(&c->mutex);
|
|
ASSERT(c->posted == 0);
|
|
uv_sem_post(&c->sem);
|
|
c->posted = 1;
|
|
uv_mutex_unlock(&c->mutex);
|
|
}
|
|
|
|
|
|
TEST_IMPL(semaphore_1) {
|
|
uv_thread_t thread;
|
|
worker_config wc;
|
|
|
|
memset(&wc, 0, sizeof(wc));
|
|
|
|
ASSERT(0 == uv_sem_init(&wc.sem, 0));
|
|
ASSERT(0 == uv_mutex_init(&wc.mutex));
|
|
ASSERT(0 == uv_thread_create(&thread, worker, &wc));
|
|
|
|
uv_sleep(100);
|
|
uv_mutex_lock(&wc.mutex);
|
|
ASSERT(wc.posted == 1);
|
|
uv_sem_wait(&wc.sem); /* should not block */
|
|
uv_mutex_unlock(&wc.mutex); /* ergo, it should be ok to unlock after wait */
|
|
|
|
ASSERT(0 == uv_thread_join(&thread));
|
|
uv_mutex_destroy(&wc.mutex);
|
|
uv_sem_destroy(&wc.sem);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
TEST_IMPL(semaphore_2) {
|
|
uv_thread_t thread;
|
|
worker_config wc;
|
|
|
|
memset(&wc, 0, sizeof(wc));
|
|
wc.delay = 100;
|
|
|
|
ASSERT(0 == uv_sem_init(&wc.sem, 0));
|
|
ASSERT(0 == uv_mutex_init(&wc.mutex));
|
|
ASSERT(0 == uv_thread_create(&thread, worker, &wc));
|
|
|
|
uv_sem_wait(&wc.sem);
|
|
|
|
ASSERT(0 == uv_thread_join(&thread));
|
|
uv_mutex_destroy(&wc.mutex);
|
|
uv_sem_destroy(&wc.sem);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
TEST_IMPL(semaphore_3) {
|
|
uv_sem_t sem;
|
|
|
|
ASSERT(0 == uv_sem_init(&sem, 3));
|
|
uv_sem_wait(&sem); /* should not block */
|
|
uv_sem_wait(&sem); /* should not block */
|
|
ASSERT(0 == uv_sem_trywait(&sem));
|
|
ASSERT(-1 == uv_sem_trywait(&sem));
|
|
|
|
uv_sem_post(&sem);
|
|
ASSERT(0 == uv_sem_trywait(&sem));
|
|
ASSERT(-1 == uv_sem_trywait(&sem));
|
|
|
|
uv_sem_destroy(&sem);
|
|
|
|
return 0;
|
|
}
|