The state is tracked by polling busy file descriptors at the beginning of each poll operation.
在每个poll操作的开头，通过poll繁忙的文件描述符跟踪状态。
WS-Polling, at its simplest level, just defines a single SOAP operation called GetMessage, which the SOAP client can use against the message hosting provider.
最基本的 WS-Polling只定义一个SOAP操作，称为GetMessage，SOAP客户机可以对消息托管提供商执行该操作。
Even though they disapprove of the Afghanistan operation, 60% accept that such missions are unavoidable, according to Allensbach, a polling organisation.
据一家名为艾伦·巴赫的调查机构调查显示，60%的德国人认为在阿富汗驻军是无法避免的。
Even though they disapprove of the Afghanistan operation, 60% accept that such missions are unavoidable, according to Allensbach, a polling organisation.
据一家名为艾伦·巴赫的调查机构调查显示，60%的德国人认为在阿富汗驻军是无法避免的。
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