linux c 线程间通信

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>

pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
int shared_data = 0;

void* producer(void* arg) {
    for (int i = 0; i < 10; ++i) {
        pthread_mutex_lock(&mutex);
        shared_data++;
        printf("Produced: %d
", shared_data);
        pthread_cond_signal(&cond); // 通知消费者
        pthread_mutex_unlock(&mutex);
    }
    return NULL;
}

void* consumer(void* arg) {
    for (int i = 0; i < 10; ++i) {
        pthread_mutex_lock(&mutex);
        while (shared_data == 0) {
            pthread_cond_wait(&cond, &mutex); // 等待生产者通知
        }
        shared_data--;
        printf("Consumed: %d
", shared_data);
        pthread_mutex_unlock(&mutex);
    }
    return NULL;
}

int main() {
    pthread_t producer_thread, consumer_thread;
    pthread_create(&producer_thread, NULL, producer, NULL);
    pthread_create(&consumer_thread, NULL, consumer, NULL);
    pthread_join(producer_thread, NULL);
    pthread_join(consumer_thread, NULL);
    return 0;
}