[ECOS] Question about scheduler & sleep

[jyl087@netscape.net]

In my application, I have a section of code which is surrounded by
cyg_scheduler_lock/unlock. Now, within that section, I call
cyg_thread_delay(128). My intention is to have a 128 tick pause,
without allowing context switching.

When I step through the code with GDB, I find that the code does
pause, however, when it returns from the cyg_thread_delay, the
thread is still in the SLEEPING state. It actually continues to 
execute until the cyg_scheduler_unlock() is called, at which point
it goes into a deep sleep...

In summary:

  cyg_scheduler_lock();      RUNNING
    ...
    cyg_thread_delay(128);   SLEEPING
    ...                      SLEEPING, but executing code!
  cyg_scheduler_unlock();    SLEEPING, and really dead

Question... is this a bug in the thread mechanism, or is my
use of the library wrong?

Thanks
/Jim



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