[Twisted-Python] a problem about iocp and callInThread

[exarkun at twistedmatrix.com]

On 04:10 pm, dynamicgl at gmail.com wrote:
>Hi all
>
>     I just encountered a problem about iocp reactor & callInThread. I
>paste the code following:
>
>from twisted.internet import iocpreactor
>iocpreactor.install()
>from twisted.internet import reactor
>
>class ThreadTest:
>    def __init__(self,name):
>        self.count = 0
>        self.max = 5
>        self.wait = 1
>        self.name = name
>
>    def __call__(self):
>        self.Execute()
>
>    def Execute(self):
>        print self.name, time.time()
>        self.count += 1
>        if self.count <self.max:
>            reactor.callLater(self.wait, reactor.callInThread, 
>self.Execute)
>        else:
>            print self.name, "stop"
>
>reactor.callInThread(ThreadTest("test"))
>
>the problem is every time the print method was invoked, i noticed that
>the difference between current invoke and previous invoke was 2
>seconds. In theory ,it should be one second. When i used the plain

You're calling reactor.callLater from a non-reactor thread.  This isn't 
supported and will produce unpredictable behavior.

Jean-Paul
>reactor (which means no iocpreactor), the difference was one second
>which is a correct value.
>
>I want to know what makes callInThread so special with iocpreactor?
>
>BTW: i used windows 7 & window s2008.
>
>Regards
>
>gelin yan
>
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