From: Bill Kelly <billk@...>
Date: 2006-03-01T16:30:19+09:00
Subject: Re: Waking ruby thread on external event

From: "Joel VanderWerf" <vjoel@path.berkeley.edu>
>
> Can the ruby thread just Thread.sleep, and wait for the C++ code to call
> rb_thread_wakeup() or whatever it is that implements Thread#wakeup ?

Hi - somehow i'd not seen your reply.  Thanks.

Hmm...

VALUE
rb_thread_wakeup(thread)
    VALUE thread;
{
    rb_thread_t th = rb_thread_check(thread);

    if (th->status == THREAD_KILLED)
        rb_raise(rb_eThreadError, "killed thread");
    rb_thread_ready(th);

    return thread;
}

I don't suppose this could be called from a different OS thread
than ruby's.

And the ruby interpreter may be waiting in a select() call when
I need to wake up my ruby thread.

Ah, well.. Maybe UDP is the way to go...   <smile>


Regards,

Bill