Re: Input event reduction

[Nicola Fontana <ntd entidi it>]

Il Wed, 29 Mar 2017 21:27:48 +0200 Stefan Salewski <mail ssalewski de> scrisse:

> ...
>
> Problem is the idle function added with
>
> https://developer.gnome.org/glib/stable/glib-The-Main-Event-Loop.html#g-idle-add
>
> I have the strong feeling, that the provided function is not running
> silently in the background, ...

Hi Stefan,

idle functions do *not* run in the background so if you don't
release the CPU you will experience what you described.

AFAIK all the GMainLoop code is single-threaded hence, as a
consequence, you will block the UI whenever the CPU is busy
running your code, being it inside a signal handler, a timeout
function or (as in your case) an idle function.

Just avoid loops when you know they are expensive. Instead
leverage the cyclic nature of GMainLoop for iterating over your
code, i.e. by respawning your idle function as much as needed.

Ciao.
-- 
Nicola