Re: [Vala] GPrivete and GStaticPrivate...and threads with their own data

[Frederik <scumm_fredo gmx net>]

Mihail Naydenov wrote:
> After same digging I came to this:
> http://mail.gnome.org/archives/vala-list/2008-May/msg00144.html
>
> It seams there is no way to pass custom data to new threads, they always 
> operate on the spawning class members.
>
> I do not know much about threading and vala, but that is quite limiting, 
> and even the simplest things (like giving the new thread a unique name) 
> look hard or impossible in my head :/
> Even events have both Sender and Event args to represent the context in 
> which they are called...
>
> Please, anyone with vala threading experience, share the typical pattern 
> of using threads,.
> Many thanks in advance!
> MihailNaydnov

Hi,

you could encapsulate your thread data in a class:

-----------------------

class MyThread {

    private string name;
    private int count = 0;

    public MyThread (string name) {
        this.name = name;
    }

    public void* thread_func () {
        while (true) {
            stdout.printf ("%s: %i\n", this.name, this.count);
            this.count++;
            Thread.yield ();
        }
        return null;
    }
}

static int main (string[] args) {
    if (!Thread.supported ()) {
        error ("Cannot run without threads.");
        return -1;
    }

    var t1 = new MyThread ("A");
    var t2 = new MyThread ("B");
    weak Thread thread1;
    weak Thread thread2;

    try {
        thread1 = Thread.create (t1.thread_func, true);
        thread2 = Thread.create (t2.thread_func, true);
    } catch (ThreadError ex) {
        return -1;
    }

    thread1.join ();
    thread2.join ();

    return 0;
}

-----------------------

Regards