[ECOS] cyg_alarm - which context

[Martin Laabs]

Hi,

I have an alarm handle which is called periodically. In which context is 
the function called? Obviously it is not a thread because 
cyg_thread_delay does not work.
Anyway - is this handle-function interruptible by the scheduler or 
should I handle it like a interrupt routine? (I hope it does not block 
interrupts.)
Which stack is used by this function? It is the idle stack?

Thank you,
  Martin Laabs

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