[ENH][VM][UNIX]generalized async IO

Ned Konz ned at bike-nomad.com
Mon Jan 29 17:57:21 UTC 2001

On Sunday 28 January 2001 02:20, Lex Spoon wrote:

> I've patched the Unix VM so that any part of the VM -- including plugins
> -- may now register file descriptors to be checked with select()
> whenever ioRelinquishProcessor() is called.  I also updated the
> XWindows, sound, and sockets modules to use this general mechanism
> instead of their own private one.

This is great! I wanted to change the serial model, as well; perhaps this 
will help.

It would be nice if the Windows VM could also do this, but unfortunately 
select() only works on sockets there (there is a different mechanism for 
async IO otherwise).

> The immediate benefit is that sound events, too, will wake up
> ioRelinquishProcessor().  A smaller benefit is that several hacks such
> as soundPollFunction() and the extraFd argument to socketPollFunction()
> are removed.

soundPollFunction is in the sqXWindow.c diff; did you mean for it to be there?

+      /* check descriptors being watched  */
+      aioPoll(0);
+      /* check sound explicitly */
+      if(soundPollFunction) {
+	soundPollFunction();
+      }
+      /* process all window events */
+      while (HandleEvents())  ;

Ned Konz
currently: Stanwood, WA
email:     ned at bike-nomad.com
homepage:  http://bike-nomad.com

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