linux下多線程學習4_列印線程id和進程id

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

 

 

常式8
    程式目的：實現在建立立的線程中列印該線程的id和進程id
    程式名稱：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;
}

    編譯方法：

gcc -Wall -lpthread pthread_id.c

    執行結果：

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