简介
Linux线程是需要连接pthreat库，线程的使用比进程更灵活，需要注意的是线程间的互斥，或者说是资源共享问题。
C++11之后，C++标准库也引入了线程，并且使用非常方便，以后再介绍，这里先发一个简单的线程示例代码。
代码
#include <stdio.h> #include <pthread.h> #include <string.h> #include <stdlib.h> char message[32]={"Hello world!"}; void *thread_function(void *arg); void *thread_function(void *arg) { printf("thread_fonction is runing , argument is %s\n", (char *)arg); strcpy(message, "marked by thread"); printf("thread_function finished\n"); pthread_exit("Thank you for the cpu time\n"); } int main(int argc, char **argv) { pthread_t a_thread; void *thread_result; if(pthread_create(&a_thread, NULL, thread_function, (void*)message ) < 0) { perror("pthread_create error:"); exit(-1); } printf("writing for the thread to finish\n"); if(pthread_join(a_thread, &thread_result) < 0) { perror("pthread_join error:"); exit(0); } printf("in main, thread is exist, marked msg: %s \n", message); exit(0); }
编译
编译的时候，需要加上pthread线程库
gcc pthreat.c -o test -lpthread
运行
程序启动后，主程序中，创建线程，然后等待线程退出，在线程函数里，会把message字符串修改掉。
./test in main, writing for the thread to finish in thread, thread_fonction is runing , argument is Hello world! in thread, thread_function finished in main, thread is exist, marked msg: marked by thread
