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Defining this macro on a global level is disadvantageous for other APIs,
and as we need it for clock_gettime() only on Mac OS X, define it
locally in pulsecore/core-rtclock.c only.
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The HAVE_CLOCK_GETTIME macro protects timespec and related functions, nothing of which is used in
pa_rtclock_from_wallclock. And silently just not converting was not the proper solution anyway.
Also add an assert in pulse/mainloop.c to report the integer overflow that was triggered by the wrong
pa_rtclock_from_wallclock. Without the assert, debugging was painful.
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Also remove some unnecessary <time.h> headers.
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And also the reverse: around some win32 specific functionality
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Move the code for OS_IS_DARWIN to the top as on Darwin,
HAVE_CLOCK_GETTIME is also defined.
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On Wed, Sep 16, 2009 at 11:48:58PM +0200, Lennart Poettering wrote:
> On Wed, 16.09.09 15:15, Daniel Mack (daniel@caiaq.de) wrote:
>
> > From: Kim Lester <kim@dfusion.com.au>
> >
> > OS X does not define clockid_t or clock_gettime() and friends.
> > Add a wrapper to fix this.
>
> Hmpf. I am not particularly happy with this. This adds a lot of
> unnecessary compat code. We don't actually need implementations of
> clock_getres(). All we need is some kind of check whether system
> timers are accurate or whether they are rounded up to scheduling
> slices. On Linux we do that check with clock_getres(), but all the
> information it returns is actually not intertesting at all. We just
> check if this is below some trheshold, that's all.
>
> clock_settime() we don't use at all! We shouldn't carry compat code
> for that.
>
> And clock_gettime we don't really need either. We need some kind of
> accurate system timers (preferably monotonic), and on Linux we use
> clock_gettime() for that. But we already have a fallback there for
> gettimeofday().
>
> Or in other words, the current APIs pa_rtclock_get(),
> pa_rtclock_hrtimer() is supposed to be the abstract API that has
> different backends on different systems. I'd very much prefer if any
> MacOS specific code would simply be plugged in there instead of
> creating various new abstraction interfaces!
Ok - what about the version below? I don't particularily like the
Daniel
>From 9f0a051953ec354ccdb8aa44a9845c408b26ae0b Mon Sep 17 00:00:00 2001
From: Kim Lester <kim@dfusion.com.au>
Date: Wed, 16 Sep 2009 14:40:01 +0800
Subject: [PATCH] Implement pa_rtclock_get() and pa_rtclock_hrtimer() for Darwin
OS X does not define clockid_t or clock_gettime() and friends.
Add wrappers to fix this. Based on a patch from Kim Lester
<kim@dfusion.com.au>.
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Move the mainloop to monotonic based time events.
Introduces 4 helper functions:
pa_{context,core}_rttime_{new,restart}(), that fill correctly a
timeval with the rtclock flag set if the mainloop supports it.
Both mainloop-test and mainloop-test-glib works with rt and timeval
based time events. PulseAudio and clients should be fully functional.
This patch has received several iterations, and this one as been
largely untested.
Signed-off-by: Marc-André Lureau <marca-andre.lureau@nokia.com>
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