Linux多线程编程

 #include <pthread.h>
 #include <stdio.h>
 #include <sys/time.h>
 #include <string.h>
 #define MAX 10
 pthread_t thread[2];
 pthread_mutex_t mut;
 int number=0, i;

 void *thread1()
 {
         printf ("thread1 : I'm thread 1\n");
         for (i = 0; i < MAX; i++)
         {
                 printf("thread1 : number = %d\n",number);
                 pthread_mutex_lock(&mut);
                         number++;
                 pthread_mutex_unlock(&mut);
                 sleep(2);
         }
         printf("thread1 :主函数在等我完成任务吗？\n");
         pthread_exit(NULL);
 }
 void *thread2()
 {
         printf("thread2 : I'm thread 2\n");
         for (i = 0; i < MAX; i++)
         {
                 printf("thread2 : number = %d\n",number);
                 pthread_mutex_lock(&mut);
                         number++;
                 pthread_mutex_unlock(&mut);
                 sleep(3);
         }
         printf("thread2 :主函数在等我完成任务吗？\n");
         pthread_exit(NULL);
 }
 void thread_create(void)
 {
         int temp;
         memset(&thread, 0, sizeof(thread));          //comment1
         /*创建线程*/
         if((temp = pthread_create(&thread[0], NULL, thread1, NULL)) != 0)       //comment2
                 printf("线程1创建失败!\n");
         else
                 printf("线程1被创建\n");
         if((temp = pthread_create(&thread[1], NULL, thread2, NULL)) != 0)  //comment3
                 printf("线程2创建失败");
         else
                 printf("线程2被创建\n");
 }
 void thread_wait(void)
 {
         /*等待线程结束*/
         if(thread[0] !=0) {                   //comment4
                 pthread_join(thread[0],NULL);
                 printf("线程1已经结束\n");
         }
         if(thread[1] !=0) {                //comment5
                 pthread_join(thread[1],NULL);
                 printf("线程2已经结束\n");
         }
 }
 int main()
 {
         /*用默认属性初始化互斥锁*/
         pthread_mutex_init(&mut,NULL);
         printf("我是主函数哦，我正在创建线程，呵呵\n");
         thread_create();
         printf("我是主函数哦，我正在等待线程完成任务阿，呵呵\n");
         thread_wait();
         return 0;
 }