More than 64 sockets ?

[Chris Faylor]

On Mon, Dec 06, 1999 at 04:17:28PM -0500, Chris Faylor wrote:
>On Mon, Dec 06, 1999 at 09:54:39AM -0600, Mumit Khan wrote:
>>stefan <stefan@linux.f1.fhtw-berlin.de> writes:
>>> Hello,
>>> 
>>> we were porting a server software to Win9x/NT and had to notice that you
>>> cannot accept() more than 64 sockets. Why is this ? Can anyone help us ?
>>
>>The underlying OS API, WaitForMultipleObjects, has a limit of 64 handles
>>it can wait on, and that's probably the reason. There are tricks to get
>>around it, but it requires creating multiple threads. Not pretty.
>
>This isn't a problem with cygwin.  Cygwin uses the Winsock select() for
>sockets.  There probably is a limit there but it's not 64.

Just to clarify:  The "This" above refers to the WaitForMultipleObjects
limit of 64 handles.  This particular hard limit probably does not affect
cygwin.

There is a hard-coded limit in winsock.h which is probably what is coming
to play here.

cgf

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