source: tests/concurrency/pthread/pthread_cond_test.cfa@ 6cb3e5d

/* small test of pthread cond */

#include <fstream.hfa>
#include <thread.hfa>
#include <pthread.h>

int done_flag = 0;
pthread_mutex_t _mutex;
pthread_cond_t cond;

extern "C" {
    void* S1( void * ) {
        pthread_mutex_lock(&_mutex);
        for (int i = 0; i < 1000; i++) sout | "S1 done " | i;
        done_flag = 1;
        pthread_mutex_unlock(&_mutex);
        pthread_cond_signal(&cond);
        return NULL;
    }

    void* S2( void * ) {
        pthread_mutex_lock(&_mutex);
        if (!done_flag) pthread_cond_wait(&cond, &_mutex);
        sout | "S2 statement done!";
        pthread_mutex_unlock(&_mutex);
        return NULL;
    }
}



int main() {
    pthread_mutex_init(&_mutex, NULL);
    pthread_cond_init(&cond, NULL);
    pthread_t s1,s2;
    pthread_create(&s1, NULL, S1, NULL);
    pthread_create(&s2, NULL, S2, NULL);
    void* res = NULL;
    pthread_join(s1, &res);
    pthread_join(s2, &res);
    pthread_mutex_destroy(&_mutex);
    pthread_cond_destroy(&cond);
    return 0;
}