1) 定义workqueue要做的delayed工作:struct delayed_work mdelayed_work; 2) 定义workqueue: struct workqueue_struct *mworkqueue; 3) 初始化workqueue:INIT_DELAYED_WORK(mworkqueue, mdelayed_work); 4) 创建线程queue并加以名字:mworkqueue = create_singlethread_workqueue("myqueue"); 5) 运行queue:queue_del...
已经提交到共享队列的工作可以通过函数cancel_delayed_work取消,然后再调用下面的函数刷新共享队列,避免出现混乱。 void flush_schedule_work(void); 整个共享队列被整个系统共享,因此在flush_shcedule_work返回前,不可能知道它会持续多久。 这里段代码: 这里面涉及到了等待队列和工作队列,其中INIT_WORK宏将work与回调函...
我们发现与普通阻塞队列相比,这三个添加方法都是调用offer方法。那是因为它没有队列已满的条件,也就是说可以不断地向DelayedWorkQueue添加元素,当元素个数超过数组长度时,会进行数组扩容。 1publicbooleanoffer(Runnable x) {2if(x ==null)3thrownewNullPointerException();4RunnableScheduledFuture<?> e = (Runnab...
queue_delayed_work 跟schedule_delayed_work 类似,区别在于schedule_delayed_work 是在系统默认的工作队列上执行一个work,queue_delayed_work需要自行指定工作队列。类似地,schedule_delayed_work也是依赖于queue_delayed_work实现的。 static inline bool schedule_delayed_work(struct delayed_work *dwork, unsigned long...
INIT_WORK(&q->timeout_work, blk_timeout_work); q->request_fn = rfn; q->prep_rq_fn = NULL; q->unprep_rq_fn = NULL; q->queue_flags |= QUEUE_FLAG_DEFAULT; /* Override internal queue lock with supplied lock pointer */
delayed execution (delay)Example:-- add a log record on task completion local function otc_cb(task, stats_data) if stats_data == 'delete' then log.info("task %s is done", task[1]) end end queue.create_tube('tube_name', 'fifo', {temporary = true, on_task_change = otc_cb}) ...
Delayed Tasks You can delay a task by setting the ETA timestamp field on the task signature. // Delay the task by 5 seconds eta := time.Now().UTC().Add(time.Second * 5) signature.ETA = &eta Retry Tasks You can set a number of retry attempts before declaring task as failed. Fibo...
int k_delayed_work_submit_to_queue(struct k_work_q *work_q,struct k_delayed_work *work,s32_t delay) int k_delayed_work_cancel(struct k_delayed_work *work) 样例: 定义工作队列 代码语言:javascript 代码运行次数:0 复制 Cloud Studio代码运行 ...
max active works */ struct list_head delayed_works; /*延迟执行的work挂入本链表 L: delayed works */ struct list_head pwqs_node; /*用于添加到workqueue链表中 WR: node on wq->pwqs */ struct list_head mayday_node; /*用于添加到workqueue链表中 MD: node on wq->maydays */ /* * Release...
queue_work(myqueue,&thework); 延迟指定时间后到指定工作现场排队 queue_delayed_work(myqueue,&thework,<delay>); 如果工作已经在队列内,会返回false,否则会返回true。入队前等待的jiffy数,可以使用辅助函数msecs_to_jiffies把标准的ms延迟转换为jiffy。例如要让工作在5ms后入队,则可以使用queue_delayed_work(my...