#include
     
      #include
      
       #include
       
        #include
        
         void clean_fun1(void * arg){	printf("this is clean fun1\n");}void clean_fun2(void * arg){	printf("this is clean fun2\n");}void * thread_fun(void * arg){	pthread_cleanup_push(clean_fun1,NULL);	pthread_cleanup_push(clean_fun2,NULL);	sleep(100);	//这里要注意,如果将sleep(100);换成while(1);的话,程序会一直暂停.push和pop要成对出现.	//因为while(1);运行的太快,线程不接受cancel信号	//while(1);	pthread_cleanup_pop(0);	pthread_cleanup_pop(0);	return NULL;}int main(){	pthread_t tid1;	int err;	err=pthread_create(&tid1,NULL,thread_fun,NULL);	if(err!=0)	{		perror("pthread_create");		exit(0);	}	sleep(3);	//printf("test\n");	err=pthread_cancel(tid1);	if(err!=0)	{		perror("cancel error:");		exit(0);	}	err=pthread_join(tid1,NULL);	if(err!=0)	{		perror("pthread_join  error:");		exit(0);	}		return 0;}