Re: [Libevent-users] pthread_cond_timedwait realtime clock race

[David Goulet <dgoulet@xxxxxxxxx>]

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I can try to come up with a patch soon. I'll post it in this thread
once done for review.

Thanks!
David

Nick Mathewson:
> On Tue, Sep 18, 2012 at 4:14 PM, David Goulet <dgoulet@xxxxxxxxx>
> wrote:
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>> 
>> Hi everyone,
>> 
>> I'm David from the LTTng project (http://lttng.org). I'm sharing
>> here an issue we ran into. The solution could benefit the
>> libevent project.
> 
> Hi, and thanks for the heads-up!
> 
> [...]
>> After some research, we discovered a fantastic call, 
>> pthread_condattr_setclock() which can be used to set the
>> condition to use the CLOCK_MONOTONIC hence having the guarantee
>> to never jump in time between calls.
> [...]
> 
> It looks like the only current user of a timed wait function in 
> Libevent is the unit tests.  That doesn't mean we shouldn't fix
> this, though.  Anybody want to come up with a patch?
> 
> yrs,
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