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Re: File descriptors

From: Richard Frith-Macdonald
Subject: Re: File descriptors
Date: Sun, 28 Mar 2004 12:02:07 +0100

On 28 Mar 2004, at 11:00, Chad Hardin wrote:

I'd like to make some gnustep frameworks which wrap around libraries which use a file descriptor to perform async io.

Is there a standard way to plug in a file descriptor to be selected or polled from within the gnustep event handling system?

You can use the NSFileHandle if you want to maintain some sort of MacOS-X compatibility (though the MacOS-X compatible part of the api won't let you get write events), or you can use the NSRunLoop(GNUstepExtensions) category methods to watch a descriptor ... in which case an object of your choice receives a callback when an event occurs (see the RunLoopEvents protocol).

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