dequeue

Transactional support , so enqueue and dequeue operations exhibit the transactional properties of atomicity , consistency , isolation , and durability

事务性支持，这样入队和出队操作都具有事务特性：原子性、一致性、隔离性以及可持久性

A pipe is composed of a queue and two file descriptors & one to enqueue data and the other to dequeue data .

管道由一个队列和两个文件描述符（一个用于数据入列，另一个用于数据出列）组成。

Meanwhile , other instances of the application can continue to dequeue and process messages in other conversation groups .

同时，应用程序的其他实例可以继续将其他会话组中的消息移出队列并处理它们。

Note here that enqueue and dequeue task functions simply add or remove a task from the particular scheduling structures .

注意，将任务函数加入队列或脱离队列只需从特定调度结构中加入或移除任务。

At that point , the system changes from asynchronous behavior to synchronous behavior , where the producer can enqueue messages only as fast as the consumer can dequeue them .

当队列满员时，系统从异步行为切换到同步行为，这时，消息生成者生成消息的速度只能与消息使用者使用消息的速度一样快。