POSIX多线程编程(一)

简单线程

主要函数：

int pthread_create (pthread_t *, const pthread_attr_t *,void *(*)(void *), void *);

/* * ph.c * * Created on: 2012-10-14 *Author: zhaomeng */#include <pthread.h>#include <stdio.h>#include <stdlib.h>#define NUM_THREADS5//线程要执行的函数void *PrintHello(void *threadid){long tid;tid = (long) threadid;printf("Hello World! It’s me, thread #%ld!\n", tid);pthread_exit(NULL );return NULL;}int main(int argc, char *argv[]){//定义线程数组pthread_t threads[NUM_THREADS];int rc;long t;for (t = 0; t < NUM_THREADS; t++){printf("In main: creating thread %ld\n", t);/** * int pthread_create (pthread_t *, const pthread_attr_t *,void *(*)(void *), void *); * 参数： *指向pthread_t的一个指针 *属性对象的指针 *要执行的函数 *函数的参数 */rc = pthread_create(&threads[t], NULL, PrintHello, (void *)t);if (rc){printf("ERROR; return code from pthread_create() is %d\n", rc);exit(-1);}}/* Last thing that main() should do */pthread_exit(NULL );}

，到底通向了什么样的远方呢？