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Re: Host Time epoch

Subject: Re: Host Time epoch
From: Steve Checkoway <email@hidden>
Date: Thu, 10 Feb 2005 11:54:17 -0800
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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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References:
	>Host Time epoch (From: Geoff Schmidt <email@hidden>)
	>Re: Host Time epoch (From: Jeff Moore <email@hidden>)

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