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From: pasturel@sctc.com (Pierre Pasturel)
Newsgroups: comp.windows.x.motif
Subject: delay loop
Summary: how to resume execution after x msec
Keywords: XtAddTimeOut
Message-ID: <1990Dec13.170905.21902@sctc.com>
Date: 13 Dec 90 17:09:05 GMT
Distribution: comp.windows.x.motif comp.windows.x
Organization: Secure Computing Technology Corporation
Lines: 40


  I want to use XtAddTimeOut to cause a delay X in msec in a callback by
doing this:

/*** in callback 

    timer_id = XtAddTimeOut(X,delay_done,NULL);

    while ( done == FALSE ) {

    }

    /* rest of processing in callback */

 *** end of callback  ***/


void delay_done(caddr_t client) 
{

    done = TRUE;
    
    
}

where delay_done is the processing procedure which will set the done flag
to TRUE when X msecs have expired. The problem is, the while loop
sits in a tight loop forever and the Time Out never occurs.

Do you know what I can do? I want to set it up so that processing occurs
AFTER the while loop, not in delay_done.

Thanks for any help

Pierre
pasturel@sctc.com


p.s. I tried using setjmp and longjmp, but I would rather stay away from
     those.