Re: [Vala] Pass params through threads_add_idle()

[Luca Bruno <lethalman88 gmail com>]

Use Idle.add.


On Wed, Aug 27, 2014 at 8:11 PM, Gilzad Hamuni <gilli4 gmx net> wrote:

> Hi all,
> I'm trying to pass a parameter to a function that I call through
> threads_add_idle().
> But threads_add_idle() obviously accepts only a SourceFunc.
> I can't pick up the data from a global variable. So I tried using closures
> from where I'd pass the needed parameter:
>
> private void ThreadedFunc(uint 8 byte)
> {
>   Gdk.threads_add_idle(()=>
>   {
>     GuiWorker(byte);
>     return false;
>   });
> }
>
> But then the class of GuiWorker is not instantiated, so I get an assertion
> during runtime (self != null). If I don't try to pass the parameter and
> just pass 'GuiWorker' to threads_add_idle() directly (given 'GuiWorker'
> doesn't take any params then), then the instance does exist.
>
> Before that, when I used the deprecated methods Gdk.threads_enter() and
> Gdk.threads_leave(), I could help myself by doing whatever I wanted in
> between. But how can I work with threads_add_idle() now? The vala bindings
> omit its second parameter 'data', so I'd be glad if you could tell me how
> do it 'the right way'.
>
> Thanks a bunch.
>
> gilzad
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