Re: NSSpeechSynthesizer / DarkWake interaction
Re: NSSpeechSynthesizer / DarkWake interaction
- Subject: Re: NSSpeechSynthesizer / DarkWake interaction
- From: Jens Alfke <email@hidden>
- Date: Wed, 15 Aug 2012 22:51:02 -0700
On Aug 15, 2012, at 8:38 PM, Jay Reynolds Freeman <email@hidden> wrote:
> I thought that DarkWake was the name for the advanced form of Power Nap on 10.8; in any case that is what I meant. I *think* I understand that the system can put apps of its choice into that mode (audio and console powered down, all else running). My concern is as described -- what will NSSpeechSynthesizer do when my app is placed in that state outside of my control.
My own reading-between-the-lines makes me think that _only_ specific Apple apps will get _any_ CPU time whatsoever in this state. Both because of compatibility issues such as the one you raise, and also because the OS is being extra vigilant about battery usage and heat dissipation.
I wouldn't be surprised if the next OS release adds public APIs to let 3rd party apps run particular tasks in power-nap mode, akin to the way iOS 4 added background options for apps. Your first post made me think that such APIs were already present in 10.8 and I just hadn't noticed them yet :)
—Jens
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