[vlc-devel] CLOCK_MONOTONIC

[Rafaël Carré]

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Rémi Denis-Courmont a écrit :

> The value cannot be the Epoch. CLOCK_REALTIME is the Epoch. CLOCK_REALTIME can 
> go backward (through settimeofday/clock_settime), and CLOCK_MONOTONIC cannot, 
> by definition. As such, CLOCK_MONOTONIC cannot be the Epoch (it could have 
> the same value at any given time, by pure accident only).
> 
> In practice CLOCK_MONOTONIC is the system uptime, much like GetTickCount() On 
> Win32, or times() on old Unices. Depending on OSes and versions, it does or 
> does not include suspend time.
> 
>> this causes __vlc_cond_wait() to immediately timeout instead of after 1
>> second, because the time elapsed since epoch is always more than the
>> time elapsed since my machine booted up, or since chicken have teeth.
> 
> I don't get your problem. mdate() uses CLOCK_MONOTONIC (if available), and so 
> do vlc_cond_*(). This is required, otherwise vlc_cond_timedwait() could not 
> be made to work at all.
> 

French man page for pthread_cond_timedwait didn't precise the clock used
could be changed.

Should be fixed in [22066]

- --
Rafaël Carré
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