Re: Understanding glib events

[R K <cheesemilli gmail com>]

So this would mean that, if my callback function would have a sleep statement or some simple printf statements, an other event/callback function could be executed at the "same" time?

2010/4/19 Siddu <siddu sjce gmail com>

On Sun, Apr 18, 2010 at 10:35 PM, R K <cheesemilli gmail com> wrote:

Thanks Siddu. So does this mean that the next event will be dispatched as soon as the callback function of the current callback function returns? E.g. an event will not be interupted by another function?

Yes , but it also depends upon the function calls you are making in the callback function (whether they are synchronous calls or non synchronous calls)

if its synchronous calls .... its true with what you said

if its async call , the next event will be immediately handled

Rene

2010/4/18 Siddu <siddu sjce gmail com>

On Sun, Apr 18, 2010 at 7:48 PM, R K <cheesemilli gmail com> wrote:

Hi all,

I am trying to understand the way glib uses events when using g_main_loop_run(loop).
This is how I understand it:

The g_main_loop_run() function checks regulary if there are events that needs to be processed. The signal of an event is then executed by executing the callback function. What I don't understand is when a new event/callback function is executed. Is this when the first callback function is completed and then a next event is handled? Or is this when a event is dispatched by calling the callback function. Even when the callback function is not completed yet, another event can already be dispatched?

I expect that multiple callback functions can be handled at the same time but that only one event at at time will be dispatched.

Hi ,

its like the occurence of event will be followed by a look up in the table as to which all functions have been registered as callback .... all those functions will be dispatched ... and if any event occurs during the execution of these callbacks they will be queued and handled in the next turn !

Hopefully someone can clear this up for me a bit.

Thanks!

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--
Regards,
~Sid~
A little bird which escaped the nest had to fall before it learnt to fly !

--
Regards,
~Sid~
A little bird which escaped the nest had to fall before it learnt to fly !