Re: select() on serial port

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#6092

From: Patrick Rotsaert
Date: Wed, 08 Jun 2005 14:11

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Sounds promising!
Do you know of any good examples on overlapped IO, events and such. 
Reading the microsoft help does not make it any easier ;-)

Thanks,
Patrick.

Eelke wrote:
> 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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