Re: [ECOS] Doubt on cyg_semaphore_timed_wait

[Reji P Rajesh <rejip at cdotb dot ernet dot in>]

Hi Nick,
	  I have traced code on cyg_semphore_timed_wait system call. 
My doubt is on the file cnt_sem.cxx, and line number 147. 
Here the currently running thread calls
set_timer(timeout,Cyg_Thread::TIMEOUT), which will cause currently
running thread be 
taken out from multi level run queue and state of thread is changed to 
(RUNNING + SLEEPING). My doubt is, how this thread will be brought back
into multilevel run queue, other than the timeout?.More precisely,
when/how  this thread's wake_reason be set to NONE.

thanks in advance,
reji

On 9 Jun 2003, Nick Garnett wrote:

> Reji P Rajesh <rejip@cdotb.ernet.in> writes:
> 
> > Hi,
> > 	Can anybody describes how cyg_semaphore_timed_wait system call on 
> > counting semaphore works?
> > 
> 
> You have the source, use it. Nobody is going to just explain this kind
> of thing for you without any evidence that you have made some effort
> to understand it for yourself.
> 
> If you have a specific question about the code then ask it, and maybe
> someone might answer it.
> 
> -- 
> Nick Garnett                    eCos Kernel Architect
> http://www.ecoscentric.com/     The eCos and RedBoot experts
> 
> 


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