linux 线程 退出 检测

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

void* thread_func(void* arg) {
    // 线程执行的代码
    return NULL;
}

int main() {
    pthread_t thread;
    int ret = pthread_create(&thread, NULL, thread_func, NULL);
    if (ret != 0) {
        perror("Thread creation failed");
        return 1;
    }

    // 等待线程结束
    ret = pthread_join(thread, NULL);
    if (ret != 0) {
        perror("pthread_join failed");
        return 1;
    }

    printf("Thread has exited.\n");
    return 0;
}

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

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

void* thread_func(void* arg) {
    // 线程执行的代码

    pthread_mutex_lock(&mutex);
    thread_finished = 1;
    pthread_cond_signal(&cond);
    pthread_mutex_unlock(&mutex);

    return NULL;
}

int main() {
    pthread_t thread;
    int ret = pthread_create(&thread, NULL, thread_func, NULL);
    if (ret != 0) {
        perror("Thread creation failed");
        return 1;
    }

    pthread_mutex_lock(&mutex);
    while (!thread_finished) {
        pthread_cond_wait(&cond, &mutex);
    }
    pthread_mutex_unlock(&mutex);

    printf("Thread has exited.\n");
    return 0;
}