osx: disable app-nap programatically #5804
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For now, disable for the life of bitcoind and bitcon-qt to achieve the same behavior as before. More fine-grained behavior can come after more testing.
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Please don't add these kind of one-use utilities in the top-level src directory. As I've suggested before, a an src/support or such directory would make sense.
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Sorry to say but I'm not entirely convinced of adding mac-specific code to the core code. In the GUI this is more acceptable (and even there we like to avoid it if possible), but I don't know here. The plist-based solution works, so this reeks a bit of "Don't fix it, it's not broken" to me. |
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Ok. I was under the impression that some of our non-qt deps required objc and frameworks already, but looking at the link-line, that's not the case. So I agree with the no-objc argument. Closing as not worth it. |
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Currently for OSX we're disabling app-nap globally via the app's plist. If enabled, app-nap slows down performance badly for long-running activities. See #5041 for more background.
Disabling via the plist has a few draw-backs:
These changes add runtime functionality so that we can turn it on/off at-will. For now, it's enabled for the life-time of the programs, but that can be changed once we decide how to regulate it.
The CIdleInhibitor class is very ugly, but I assume that at some point we'll add similar features for other operating systems. I think this is nicer than osx ifdefs all over the place. I avoided inheritance and virtuals since we're interfacing with objc.
Needs testing on < 10.9 systems.