WaitForMultipleObjectsEx will not take up to MAXIMUM_WAIT_OBJECTS

Bryan Mayland bmayland at leoninedev.com
Tue Mar 21 11:35:28 CST 2006

I've been digging into why versions of uTorrent greater than 1.1.3 do 
not work under the latest wine and tracked it down to their use of 
WSAEventSelects to receive socket notifications.  I created a small test 
application which mimics this behavior which works under WindowsXP but 
not wine.

The problem is that they create MAXIMUM_WAIT_OBJECTS events and pass 
them to WaitForMultipleObjectsEx.  That function bails out early due to 
176     if (count >= MAXIMUM_WAIT_OBJECTS)
177     {
178         SetLastError(ERROR_INVALID_PARAMETER);
179         return WAIT_FAILED;
180     }

Windows supports up to and including that number, wine only supports up 
to that number.  Since the rest of the code actually does support the 
full 64 wait objects, is there any reason this should not be changed to
176     if (count > MAXIMUM_WAIT_OBJECTS)

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