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For example, in Java, the Selector's select () method is used to implement this synchronous blocking operation waiting for an event to occur. In the implementation of select () under Linux operating system, a) will call epollCtl (epfd, opcode, fd, events) to register the events that have been registered in Initiation Dispatcher into Linux system, where fd means Handle and events means Handle events that we are interested in; B) Synchronize the occurrence of a blocked wait registered event by calling the epollWait method. Events on different event sources may occur at the same time. Once an event is triggered, the epollWait method will return. C) Finally, find the associated SelectorKeyImpl object by the event that occurred, set the event that occurred to the ready state, and then put the SelectorKeyImpl into the selectedSet. In this way, we can get the event-ready SelectorKeyImpl collection through the Selector.selectedKeys () method.你们来了，就算不说，我也会请你们吃的，偏要摆出无赖形象。忽然想起什么，她伸手扯扯板栗衣袖。这傲劲，让天子侧目。被一个蔑视的情人折磨并留下来死去，一个女人发现自己内心的力量可以恢复并对她的施虐者进行报复。　　该片根据真实事件改编，1980年伊朗驻伦敦大使馆遭六名恐怖分子袭击，而SAS(特种空勤团)战士等和恐怖分子的对峙持续将近六天，第六日最后的反击开始。