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Non-blocking read [message #75623]

Tue, 15 March 2011 17:22

David Grier
Messages: 35
Registered: July 2010

Member

Dear Folks,

I'm using OPENW, WRITEU and READU to interact with a piece of equipment
through a serial port. Everything's fine unless there's an error
condition on the read. If the read fails, then the IDL session hangs
irretrievably. I'd like to use a non-blocking read so that failure
yields no value and some error condition that I can check.

I suppose I could roll my own non-blocking read with CALL_EXTERNAL.

Is there a better (more elegant) way?

Many thanks,

David

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Non-blocking read

By: David Grier on Tue, 15 March 2011 17:22

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