RTSJ 处理了几个有问题的地方，包括调度、内存管理、线程、同步、计时、时钟和异步事件处理。
The RTSJ addresses several problematic areas, including scheduling, memory management, threading, synchronization, time, clocks, and asynchronous event handling.
所以在设计时请考虑如何处理异步的服务器响应。
Consider at design time how you will deal with asynchronous server responses.
RTSJ包含了对异步事件处理的支持，触发异步事件的事件包括大量包含计时器的源代码、操作系统信号、超过时限和其他应用程序定义的事件。
The RTSJ includes support for handling asynchronous events triggered by a number of sources including timers, operating-system signals, missed deadlines, and other application-defined events.
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