Re: Host Time epoch
Re: Host Time epoch
- Subject: Re: Host Time epoch
- From: Steve Checkoway <email@hidden>
- Date: Thu, 10 Feb 2005 11:54:17 -0800
On Feb 9, 2005, at 3:09 PM, Jeff Moore wrote:
The source of the time the HAL provides is the system bus clock. It is
accessed via the routines in <mach/mach_time.h>. This counter is reset
at boot time and increments monotonically at the system bus clock
speed (I think).
I still have yet to get the time from AudioDeviceGetCurrentTime to
increase monotonically. I was told that this was fixed with the next
version of Mac OS X but I have now updated versions twice and it is
still an issue with 10.3.8.
Unless AudioGetCurrentHostTime uses an entirely different method of
computing times, I would not count on monotonicity.
- Steve
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