The product is a lot more multi-threaded than previous versions and in some cases synchronization between threads was less than great.

这个产品比起以往的版本在多线程方面更加强大，而在某些情况下线程间的同步则稍微逊色。

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So there are some related problems to be solved, such as the allocation and management of multi calls, the synchronization of multi threads, the state transference and time-out processing.

因此，在网关的实现过程中，会涉及到多路呼叫的资源分配与维护、多线程的处理与同步、呼叫状态的迁移与超时处理等问题。

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The features of multi-thread technology are introduced, and the methods of the thread synchronization between the multiple threads are analyzed.

通过阐述多线程技术的特点，分析了多线程间的线程同步机制。

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