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 <stdio.h>

#include <pthread.h>

#include <unistd.h> /*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