实时异常处理技术的探讨

在分析现有异常处理技术的基础上，比较了在程序语言及操作系统中实现异常处理的优缺点，然后讨论了实时系统中异常处理的本质需求、必要需求及性能目标。为设计出适合于实时系统的异常处理机制，从异常的表示、关键度的管理等几个方面进行了讨论，为实时异常处理的设计提供了指导原则。最后对实时异常设计进行了总结，同时展望了该领域内的相关工作及发展方向进行。

Discussion on Technology of Real-time Exception Handling

After analyzed status quo of exception handling technology of no real-time systems, advantages and disadvantages of mechanisms based on programming language and operating system are compared in this paper, followed this, the essential requirements, desirable requirements and performance goals in real-time systems are discussed. In order to design an exception handling mechanism adaptive to real time systems, discussed exception expression, criticality management and reliability check and so on, they will become guidelines for designing real time exception handling mechanism. At last, real-time exception handling technologies are summarized, at the same time, related work and future trends of research in this field are listed.