寒假作业5

#include 
#include 
#include 
 
pthread_mutex_t mute;
pthread_cond_t cond;
 
void *task1(void *arg)
{
	sleep(1);
 
	printf("我生产了3辆车\n");
	pthread_cond_broadcast(&cond);
 
	pthread_exit(NULL);
}
void *task2(void *arg)
{
	pthread_mutex_lock(&mute);
 
	pthread_cond_wait(&cond, &mute);
 
	printf("%#lx:我购买了1辆\n", pthread_self());
 
	pthread_mutex_unlock(&mute);
 
	pthread_exit(NULL);
}
 
int main(int argc, const char *argv[])
{
	pthread_mutex_init(&mute, NULL);
	pthread_cond_init(&cond, NULL);
	
	pthread_t tid1,tid2,tid3,tid4;
	if(pthread_create(&tid1, NULL, task1, NULL) != 0)
	{
		printf("pthread_create error\n");
		return -1;
	}
			
	if(pthread_create(&tid2, NULL, task2, NULL) != 0)
	{
		printf("pthread_create error\n");
		return -1;
	}
 
	if(pthread_create(&tid3, NULL, task2, NULL) != 0)
	{
		printf("pthread_create error\n");
		return -1;
	}
 
	if(pthread_create(&tid4, NULL, task2, NULL) != 0)
	{
		printf("pthread_create error\n");
		return -1;
	}
 
 
	pthread_join(tid1, NULL);
	pthread_join(tid2, NULL);
	pthread_join(tid3, NULL);
	pthread_join(tid4, NULL);
 
 
	pthread_mutex_destroy(&mute);
	pthread_cond_destroy(&cond);
	return 0;
}