site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com On Jul 21, 2008, at 1:47 PM, Ethan Bold wrote: Already using it so that's not a downside. First time I've ever heard of pmset, but interesting. That is handy. -- Steve Checkoway _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... Please don't use UpdateSystemActivity(). It will work, but IOPMAssertionCreateWithName()* is a better option. - UpdateSystemActivity() is in the Carbon framework; using it may cause you to unnecessarily link with this large & bulky framework, affecting app launch times and memory usage. - User's cant identify which process is keeping the display awake when you call UpdateSystemActivity. If you use IOPMAssertionCreateWithName(), OS X can keep track of which processes are responsible (visible by running "pmset -g"). - You only have to create an assertion once to keep the display awake; you need to call UpdateSystemActivity() once every 25-30 seconds to cause a fake keyboard press. It's cleaner code for you. Until now, UpdateSystemActivity() was the only game in town, but please don't use it anymore! We've got a better alternative. IOPMAssertionCreateWithName() doesn't seem to exist anywhere (google knows nothing about it). IOPMAssertionCreate() doesn't seem to exist in pre-10.5 and since I see no need to restrict to 10.5, that doesn't work for me. * Prefer IOPMAssertionCreateWithName(), which lets you pass a string describing the purpose of the assertion (for debugging & diagnostic use for Apple & yourself) over the vanilla IOPMASsertionCreate. If you invoke IOPMAssertionCreate from multiple points in your code; naming the assertions differently will help identify leaks. As I said, IOPMAssertionCreateWithName() doesn't seem to exist. Xcode doesn't know about it, google doesn't know about it, I can't find it on my system: $ find /System/Library/Frameworks -name '*.h' -print0|xargs -0 grep IOPMAssertionCreateWithName prints nothing. This email sent to site_archiver@lists.apple.com