36 lines
877 B
C
36 lines
877 B
C
#include <pthread.h>
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#include <unistd.h>
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#include <assert.h>
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#include <stdio.h>
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static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
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static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
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static void *thread(void *arg) {
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const char *name = (const char *) arg;
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printf("[%s] wait\n", name);
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pthread_mutex_lock(&mutex);
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pthread_cond_wait(&cond, &mutex);
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pthread_mutex_unlock(&mutex);
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printf("[%s] done\n", name);
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return NULL;
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}
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int main(int argc, const char **argv) {
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pthread_t handle0, handle1;
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pthread_create(&handle0, NULL, thread, "thread0");
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pthread_create(&handle1, NULL, thread, "thread1");
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sleep(3);
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pthread_mutex_lock(&mutex);
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pthread_cond_broadcast(&cond);
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pthread_mutex_unlock(&mutex);
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pthread_join(handle0, NULL);
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pthread_join(handle1, NULL);
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printf("[main] finished\n");
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return 0;
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}
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