1
我在头文件中创建了dispatch_queue_thread_t结构体。
该代码分配线程,任务和队列的dThread结构c,创建线程和线程函数
dispatch_queue_thread_t *dThread;
dThread = (dispatch_queue_thread_t *) malloc(sizeof(dispatch_queue_thread_t));
pthread_t dispatcher_thread;
if(pthread_create(&dispatcher_thread, NULL, dispatcher_threadloop, (void *)dispatch_queue)){
perror("ERROR creating thread."); exit(EXIT_FAILURE);
}
dThread->task=NULL;
dThread->queue=dispatch_queue;
dThread->thread=dispatcher_thread;
该代码可用于dispatcher_thread线程功能。
我需要在dThread中使用线程来检查是否有任何任务分配给它,如果不需要将任务分配给它。
我该怎么做? 我的代码是否正确?
void *dispatcher_threadloop(void * queue){
//thread loop of the dispatch thread- pass the tast to one of worker thread
dispatch_queue_t *dQueue;
dQueue=queue;
//can I do this?
dispatch_queue_thread_t *dThread;
printf("message-boss1");
dQueue = (dispatch_queue_t *)queue;
if (dQueue->HEAD!=NULL){
for(;;){
sem_wait(dQueue->queue_task_semaphore);
dThread->task = dQueue->HEAD;
dQueue->HEAD = dQueue->HEAD->next;
dQueue->HEAD->prev = NULL;
sem_post(dQueue->queue_task_semaphore);
//TODO
}
}
printf("message-boss2");
}
的伟大工程,感谢名单 – Leanne