Re: select() on serial port

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#6091

From: Eelke
Date: Wed, 08 Jun 2005 13:27

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Patrick Rotsaert wrote:
> While porting a unix application to win32, I found that the select() 
> function only operates on sockets.
> My application uses both sockets and serial ports. Is there a proper way 
> to wait for events on both socket and serial port at the same time, in 
> the same thread?
> 
Yes but it is slighly more complex then a simple select.

Use overlapped IO for the serial communications. When using overlapped 
IO you can specify an event which has to be signaled when the operation 
completes.

Using the function WSAEventSelect you can bind another event to network 
events of the socket.

Finally you can use WSAWaitForMultipleEvents to wait on both event objects.

Eelke

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