Tcl Library Source Code

EuroTcl/OpenACS 11 - 12 JULY 2024, VIENNA

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uevent::onidle - Request merging and deferal to idle time

Table Of Contents


package require Tcl 8.5 9
package require uevent::onidle ?0.2?
package require logger

::uevent::onidle objectName commandprefix
objectName request


This package provides objects which can merge multiple requestes for an action and execute the action the moment the system (event loop) becomes idle. The action to be run is configured during object construction.


The package exports a class, uevent::onidle, as specified below.

The object commands created by the class commands above have the form:


Examples of this type of deferal are buried in the (C-level) implementations all the Tk widgets, defering geometry calculations and window redraw activity in this manner.

Bugs, Ideas, Feedback

This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category uevent of the Tcllib Trackers. Please also report any ideas for enhancements you may have for either package and/or documentation.

When proposing code changes, please provide unified diffs, i.e the output of diff -u.

Note further that attachments are strongly preferred over inlined patches. Attachments can be made by going to the Edit form of the ticket immediately after its creation, and then using the left-most button in the secondary navigation bar.


callback, deferal, event, idle, merge, on-idle


Copyright © 2008 Andreas Kupries