Xref: utzoo alt.toolkits.xview:122 comp.windows.open-look:550
Path: utzoo!utgpu!cs.utexas.edu!wuarchive!udel!rochester!kodak!uupsi!sunic!dkuug!resam!andrew
From: andrew@resam.dk (Leif Andrew Rump)
Newsgroups: alt.toolkits.xview,comp.windows.open-look
Subject: COME ON G & G! How do I keep a button busy without busy waiting
Message-ID: <1991Feb7.145027.7958@resam.dk>
Date: 7 Feb 91 14:50:27 GMT
Organization: RESAM Project Office, SAS, CPHML-V
Lines: 34

I received three (3) answers to my original very interesting post.  :-)
YOU CAN DO BETTER - and I don't accept cheating like making the
Reset button inactive or changing it to a Reset button, etc.!!!     :-(

Well instead of writing the whole thing one more time I'll ask only
for some suggestions on how to prevent busy waiting if I have the
following code (stolen from p.400 in Volume Seven of guess what!):

	XFlush(dpy);
	while (!reset_pressed)
	{
	  notify_dispatch();
	  XFlush(dpy);
	  /* Here is the problem - I don't have any code to put here! */
	}

The reason I don't have any code to put in is that I'm waiting (using
notify_set_input_func & notify_set_itimer_func) for some input or the
timer to time out and I'm using this piece of code because I want to
stay in the callback routine to keep the button that activated the
callback routine in busy state...

Any suggestions? - Please!

Leif Andrew


Leif Andrew Rump, AmbraSoft A/S, Stroedamvej 50, DK-2100 Copenhagen OE, Denmark
UUCP: andrew@ambra.dk, phone: +45 39 27 11 77                /
Currently at Scandinavian Airline Systems                =======/
UUCP: andrew@resam.dk, phone: +45 32 32 51 54                \
SAS, RESAM Project Office, CPHML-V, P.O.BOX 150, DK-2770 Kastrup, Denmark

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