Linux中C验证线程的几种退出方式_linux c判断线程是否结束-优快云博客

本文链接：https://blog.youkuaiyun.com/zxy131072/article/details/109023455

/* 验证线程的几种退出方式 */

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <pthread.h>

void* myfunc(void* arg)
{
    printf("child pthread id: %lu\n", pthread_self());
    //如果传递参数1，那么就用return方式退出
    if((int*)arg == (int*)1)
    {
        printf("new thread return!\n");
        return ((void*)1);
    }
    
    //如果传递参数2，那么就用exit()方式退出
    if((int*)arg == (int*)2)
    {
        printf("new thread exit!\n");
        exit(2);
    }

    //如果传递参数3，那么就用pthread_exit()方式退出
    if((int*)arg == (int*)3)
    {
        printf("new thread pthread_exit!\n");
        pthread_exit((void *)3);
    }

}

int main(int argc, const char* argv[])
{
    pthread_t thid;
    if(argc < 2)
    {
        fprintf(stderr, "Usage %s <1 2 3>\n", argv[0]);
        return -1;
    }
    
    int ret = pthread_create(&thid, NULL, myfunc, (void*)(atoi(argv[1])));
    if(ret != 0)
    {
        printf("error number: %d\n", ret);
        // 根据错误号打印错误信息
        printf("error information: %s\n", strerror(ret));
    }

    printf("parent pthread id: %lu\n", pthread_self());

    sleep(1);

    return 0;
}