linux 线程超时处理

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

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

void* thread_func(void* arg) {
    sleep(5); // 模拟长时间操作
    pthread_mutex_lock(&mutex);
    ready = 1;
    pthread_cond_signal(&cond);
    pthread_mutex_unlock(&mutex);
    return NULL;
}

int main() {
    pthread_t thread;
    pthread_create(&thread, NULL, thread_func, NULL);

    struct timespec ts;
    clock_gettime(CLOCK_REALTIME, &ts);
    ts.tv_sec += 3; // 设置超时时间为3秒

    pthread_mutex_lock(&mutex);
    int ret = pthread_cond_timedwait(&cond, &mutex, &ts);
    if (ret == ETIMEDOUT) {
        printf("Timeout occurred
");
        // 进行超时处理，例如终止线程或重试操作
        pthread_cancel(thread);
    } else {
        printf("Condition met
");
    }
    pthread_mutex_unlock(&mutex);

    pthread_join(thread, NULL);
    return 0;
}