Re: [ECOS] How to know whether currently there is any thread readyto run?

[Jonathan Larmour <jifl at eCosCentric dot com>]

Jonathan Larmour wrote:
> Young Jay wrote:
>
> > Hello, all:
> >
> > In my design, when performing the real time clock interrupt ISR, I'd
> > like to know if there is any thread just getting ready to run after a
> > time delay. Thus I can decide whether the system power mode should be
> > changed. Is there a function designed for this need? Thanks a lot for
> > you concern.
>
>
> Sort of. After the clock *D*SR runs, possibly by editting interrupt_end
> before the scheduler unlock, you can compare the handle returned against
> the idle thread, e.g. by testing cyg_thread_get_priority( cyg_thread_self()
> ) == 31.

Duh, forget the last bit - the idle thread handle is exported using the 
function:

cyg_handle_t cyg_thread_idle_thread(void);

Jifl
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