但是并发下推系统以全局变量模拟同步，不适应于当前广泛使用的基于事件驱动的并发程序。

But concurrent pushdown systems simulate concurrency by global variables, which are not able to model event-drive concurrent programs.

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该服务器基于有界队列数据结构，采用单独线程阻塞模式读写，并模拟了事件驱动的机制。

The server is based on a bounded queue, and has a single worker thread running in a block mode and runs as if in event driven mechanism.

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本文提出一种程控交换机呼叫模拟的有效方法——事件表驱动实时模拟法。

An efficient call simulation method for SPC switching systems, event table-driven real-time simulation approach has been proposed in this paper.

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