Re: timing out on a semaphore

[Arjan van de Ven]

In article <[e-mail]> you wrote:

> --2F7AbV2suvT8PGoH
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> I'm trying to chase down a semaphore time-out problem.  I want to
> sleep on a semaphore until either

> (a) it's signalled, or
> (b) some amount of time has elapsed.

> What I'm doing is calling add_timer, and then down_interruptible, and
> finally del_timer.  The timer's function ups the semaphore.

What we _really_ need is down_timeout(), which I plan to implement for early
2.5. The semantics should by similar to the try_lock functions, exect that
it will try for a specified amount of time first.

Greetings,
   Arjan van de Ven