linux下多线程学习4_打印线程id和进程id

原文地址::http://hi.baidu.com/neu_stroller/blog/item/4213d8c52ddf0aa18226accb.html

 

 

例程8
    程序目的：实现在新建立的线程中打印该线程的id和进程id
    程序名称：pthread_id.c

#include
#include
#include /*getpid()*/

void *create(void *arg)
{
    printf("New thread .... \n");
    printf("This thread's id is %u \n", (unsigned int)pthread_self());
    printf("The process pid is %d \n",getpid());
    return (void *)0;
}

int main(int argc,char *argv[])
{
    pthread_t tid;
    int error;

    printf("Main thread is starting ... \n");

    error = pthread_create(&tid, NULL, create, NULL);

    if(error)
    {
        printf("thread is not created ... \n");
        return -1;
    }
    printf("The main process's pid is %d \n",getpid());
    sleep(1);
    return 0;
}


    编译方法：


gcc -Wall -lpthread pthread_id.c

    执行结果：

Main thread is starting ...
The main process's pid is 3307
New thread ....
This thread's id is 3086347152
The process pid is 3307