Re: How to handle long I/O operations

[Markus Lausser <sgop users sourceforge net>]

On Mon, Aug 13, 2001 at 02:05:10PM -0700 Tara M wrote:

> There's no reason to use threading, atleast it won't be an advantage
> on your case.
>
> Let me give you an example, maybe that'll clarify the situation.
> First lets say your situation is to load a BIG 100 MB file on
> a 100 MB slow media (say a 100 MB floppy).
>
> This would take a long time right? so not only will you want to
> use a progress bar, but you'll probably want o manage GTK+ resources
> or your own resources in the mean time. So set up your
> program as follows:
[code snip]

The disadvantage of this solutions is:
* if the working callback needs more time than you have specified for the
  gtk timeout then your application will freeze.
* if the working callback needs (much) less time than you have specified
  then the implementation is not efficient.

I have implemented such a thing to move files from one location to another.
It simply uses the gtk_idle_add function. The only difference is that the
working function is not called every X mseconds but if there is time to do
that.

Markus.