linux线程内异步通知

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

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

void* producer(void* arg) {
    // ... 生产数据 ...
    pthread_mutex_lock(&mutex);
    ready = 1;
    pthread_cond_signal(&cond); // 通知消费者
    pthread_mutex_unlock(&mutex);
    return NULL;
}

void* consumer(void* arg) {
    pthread_mutex_lock(&mutex);
    while (!ready) {
        pthread_cond_wait(&cond, &mutex); // 等待生产者通知
    }
    // ... 消费数据 ...
    pthread_mutex_unlock(&mutex);
    return NULL;
}

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