Re: Possible explanation for Win32 stats regression test

Is anyone working on this?

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Tom Lane wrote:
> korry <korry@appx.com> writes:
> > The problem is that, each time you go through
> > pgwin32_waitforsinglesocket(), you tie the *same* kernel object
> > (waitevent is static) to each socket.
> 
> > The fix is pretty simple - just call WSAEventSelect( s, waitevent, 0 )
> > after WaitForMultipleObjectsEx() returns.  That disassociates the socket
> > from the Event (it will get re-associated the next time
> > pgwin32_waitforsingleselect() is called.  
> 
> Hmm.  Presumably we don't do this a whole lot (use multiple sockets) or
> we'd have noticed before.  Perhaps better would be to keep an additional
> static variable saying which socket the event is currently associated
> to, and only issue the extra WSAEventSelect calls if we need to change
> it.  Or is WSAEventSelect fast enough that it doesn't matter?
> 
> Anyway, someone with a Windows machine needs to code and test this ...
> 
>             regards, tom lane
> 
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--  Bruce Momjian   bruce@momjian.us EnterpriseDB    http://www.enterprisedb.com
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