Question

在linux中用一个进程创建3个线程,在三个线程分别打印各自的线程id

Answer 1

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <sys/types.h>

#include <pthread.h>

#define THREAD_NUM 3

void * thread_handler(void *arg);

void main()

{

        int i;

        pthread_t tid[THREAD_NUM];

        for(i = 0; i < THREAD_NUM; i++){

                pthread_create(&tid[i], NULL, thread_handler, NULL);

        }

        for(i = 0; i < THREAD_NUM; i++){

                pthread_join(tid[i],NULL);

        }

}

void * thread_handler(void *arg)

{

        printf("process id: %d\tthread id: %lu\n", getpid(),pthread_self());

}