多线程简单示例
erhuabushuo
posted @ 2012年9月09日 15:03
in C
, 983 阅读
#include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <string.h> #include <pthread.h> void *thread_function(void *arg); char message[] = "Hello World"; int main() { int res; pthread_t a_thread; void *thread_result; res = pthread_create(&a_thread, NULL, thread_function, (void *)message); if (res != 0) { perror("Thread creation failed"); exit(EXIT_FAILURE); } printf("Waiting for thread to finish...\n"); res = pthread_join(a_thread, &thread_result); if (res != 0) { perror("Thread join failed"); exit(EXIT_FAILURE); } printf("Thread joined, it returned %s\n", (char *)thread_result); printf("Message is now %s\n", message); exit(EXIT_SUCCESS); } void *thread_function(void *arg) { printf("thread function is running. Argument was %s\n", (char *)arg); sleep(3); strcpy(message, "Bye!"); pthread_exit("Thank you for the CPU time"); }