Re: [MOD] STR #3532: timeout set by Fl::add_timeout elapses too early

FLTK matrix user chat room
(using Element browser app)   FLTK gitter user chat room   GitHub FLTK Project   FLTK News RSS Feed  
  FLTK Apps      FLTK Library      Forums      Links     Login 
 All Forums  |  Back to fltk.bugs  ]
 
Previous Message ]New Message | Reply ]Next Message ]

Re: [MOD] STR #3532: timeout set by Fl::add_timeout elapses too early Albrecht Schlosser Jan 20, 2020 top right image
 
DO NOT REPLY TO THIS MESSAGE.  INSTEAD, POST ANY RESPONSES TO THE LINK BELOW.

[STR New]

Link: https://www.fltk.org/str.php?L3532
Version: 1.3.5


Thanks for your comment.

Your comment is absolutely correct, but this would be some kind of
"undefined behavior" (and usage).

Basically the "missed_by" mechanism can only work correctly (as intended)
if you call Fl::repeat_timeout() with the same callback that triggered it -
otherwise 'missed_by' must be considered just a random (undefined) value.
Strictly spoken, the timeout you start with Fl::repeat_timeout() need not
be exactly the same callback but it must be directly related to the timeout
being served.

That said, Fl::repeat_timeout() must only be called

 (a) within a callback triggered by Fl::add/repeat_timeout and
 (b) with the same or a directly related timer

I believe the documentation needs to be clarified...

This is a task to be done in FLTK 1.4, hence I tend to close this STR w/o
backporting anything to FLTK 1.3.


Link: https://www.fltk.org/str.php?L3532
Version: 1.3.5


Direct Link to Message ]
 
bottom left image   bottom right image
Previous Message ]New Message | Reply ]Next Message ]
 
 

Comments are owned by the poster. All other content is copyright 1998-2022 by Bill Spitzak and others. This project is hosted by The FLTK Team. Please report site problems to 'erco@seriss.com'.