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来源：互联网发布：大学排课软件编辑：程序博客网时间：2024/06/13 21:49

转自：http://www.cnblogs.com/kuliuheng/p/4062941.html
test1.c

#include <pthread.h>#include <stdio.h>#include <stdlib.h>#include <string.h>void *thread_function(void *arg);void *thread_function1(void *arg);char message[] = "Hello World";int abc[2] = {10,12};int main(){    int res;    pthread_t a_thread[2];    pthread_t *s;    void *thread_result;    s = a_thread;    res = pthread_create(s, NULL, thread_function, (void *)message);    s++;    pthread_create(s, NULL, thread_function1, (void *)&abc[0]);    if (res != 0)    {        perror("Thread creation failed!");        exit(EXIT_FAILURE);    }    printf("Waiting for thread to finish...\n");    res = pthread_join(a_thread[0], &thread_result);     pthread_join(a_thread[1], NULL);    if (res != 0)    {        perror("Thread join failed!\n");        exit(EXIT_FAILURE);    }    printf("Thread joined, it returned %s\n", (char *)thread_result);    printf("Message is now %s\n", message);    exit(EXIT_FAILURE);}void *thread_function(void *arg){    printf("thread_function0 of Argument was %s\n", (char *)arg);    sleep(3);    strcpy(message, "Bye00");    pthread_exit("Thank you for your CPU time\n");}void *thread_function1(void *arg){    int a = *(int *)arg;    printf("thread_function1 of Argument was %d\n", a);    sleep(6);    strcpy(message, "Bye11");    pthread_exit("Thank you for your CPU time\n");}

编译：gcc -o test1 test1.c -D REENTRANT -lpthread
运行结果：
这里写图片描述
1.pthread_join函数中的线程函数分别运行，而printf(“Thread joined, it returned %s\n”, (char *)thread_result);则需要pthread_join加入的线程内函数全部完成后才执行，所以打印“Thread joined, it returned”需要等待大约6s后。
2.传递参数，可以看到pthread_create(s, NULL, thread_function1, (void )&abc[0]);中（void ）arg 是个泛型，传什么自己决定，传给回掉函数。

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