[Click] a question about timer

[Eddie Kohler]

Yihong,

Your understanding of timers is essentially correct.  Except that when there are 
*no* active tasks, the Click thread will set a Linux timer to the earliest timer 
set to expire, then put itself to sleep.  Even then, though, there are no 
interrupts.

Eddie


Yihong Zhou wrote:
> Hi, Eddie:
> 
> Thanks for your timely response.  I have a simple question about the timer.  I don't know if my understanding is correct or not.  
> 
> Is the timer a kind of task that is looped over by the click thread?  So that when the timer is fired, it is not going to generate a system interrupt.  Instead, it is just like the other tasks such as 'fromDevice', 'ToDevice', etc.
> 
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