141 lines
3.0 KiB
C
141 lines
3.0 KiB
C
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pthread.h>
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pthread_mutex_t mtx;
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pthread_cond_t cnd;
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void *
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thread_simple(void *arg)
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{
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printf("thread_simple %p!\n", arg);
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return arg;
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}
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void *
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thread_lock(void *arg)
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{
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int i;
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int status;
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for (i = 0; i < 100; i++) {
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status = pthread_mutex_lock(&mtx);
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assert(status == 0);
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pthread_yield();
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status = pthread_mutex_unlock(&mtx);
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assert(status == 0);
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}
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return NULL;
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}
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void *
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thread_cond(void *arg)
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{
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int i;
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int status;
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for (i = 0; i < 100; i++) {
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status = pthread_cond_wait(&cnd, NULL);
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assert(status == 0);
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status = pthread_cond_signal(&cnd);
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assert(status == 0);
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}
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return NULL;
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}
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int
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main(int argc, const char *argv[])
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{
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int i;
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int status;
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pthread_t thr;
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void *result;
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printf("PThread Test\n");
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// Simple thread Test
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printf("simple test\n");
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status = pthread_create(&thr, NULL, thread_simple, NULL);
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assert(status == 0);
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status = pthread_join(thr, &result);
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assert(status == 0);
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assert(result == NULL);
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printf("\n");
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// Return value Test
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printf("return value test\n");
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status = pthread_create(&thr, NULL, thread_simple, (void *)1);
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assert(status == 0);
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status = pthread_join(thr, &result);
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assert(status == 0);
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assert(result == (void *)1);
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printf("\n");
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// Mutex Test
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printf("simple mutex lock test\n");
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status = pthread_mutex_init(&mtx, NULL);
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assert(status == 0);
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status = pthread_mutex_lock(&mtx);
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assert(status == 0);
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status = pthread_mutex_unlock(&mtx);
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assert(status == 0);
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status = pthread_mutex_destroy(&mtx);
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assert(status == 0);
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printf("\n");
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// Mutex Contention Test
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printf("contended mutex lock test\n");
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pthread_mutex_init(&mtx, NULL);
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status = pthread_create(&thr, NULL, thread_lock, (void *)1);
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assert(status == 0);
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for (i = 0; i < 100; i++) {
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status = pthread_mutex_lock(&mtx);
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assert(status == 0);
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pthread_yield();
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pthread_mutex_unlock(&mtx);
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assert(status == 0);
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}
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status = pthread_join(thr, &result);
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assert(status == 0);
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status = pthread_mutex_destroy(&mtx);
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assert(status == 0);
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printf("\n");
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// Condition Variable Test
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printf("simple condition variable test\n");
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status = pthread_cond_init(&cnd, NULL);
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assert(status == 0);
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status = pthread_cond_signal(&cnd);
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assert(status == 0);
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status = pthread_cond_wait(&cnd, NULL);
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assert(status == 0);
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status = pthread_cond_destroy(&cnd);
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assert(status == 0);
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printf("\n");
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printf("threaded condition variable test\n");
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status = pthread_cond_init(&cnd, NULL);
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assert(status == 0);
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for (i = 0; i < 100; i++) {
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status = pthread_cond_signal(&cnd);
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assert(status == 0);
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status = pthread_cond_wait(&cnd, NULL);
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assert(status == 0);
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}
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status = pthread_cond_destroy(&cnd);
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assert(status == 0);
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printf("\n");
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printf("Success!\n");
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return 0;
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}
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