Yes, I could set up a new thread, handling a list of usleep() intervals between the actual timer events but it would be very hard to make a reliable, drift-free timer service, handling lots of timer events and it would take quite some time to develop a fully functional and reliable version. I really hope I don't have to...
In the Kernel Programming Guide in ADC, chapter 7, Mach Overview, Time Management, it says: "The mach_timespec_t API is deprecated in Mac OS X. The newer and preferred API is based on timer objects that in turn use AbsoluteTime as the basic data type. AbsoluteTime is a machine-dependent type, typically based on the platform-native time base. Routines are provided to convert AbsoluteTime values to and from other data types, such as nanoseconds. Timer objects support asynchronous, drift-free notification, cancellation, and premature alarms. They are more efficient and permit higher resolution than clocks." Does anyone know about this "new API" or any higher level API build on it? I sounds like a good candidate for my project. / Påhl 2008/12/4 Nathan Day <[EMAIL PROTECTED]>: > NSRunLoop use to be based on the function select() (it was in GnuStep > anyway), it waits for inputs but also has a single timeout value also, > NSRunLoop works out how long the timeout value should be for the shortest > NSTimer. If you want to wait on multiple timers without using run NSRunLoop > then you will have to implement this kind of functionality yourself. You can > then just use sleep() to make your thread wait. > > On 04/12/2008, at 9:32 PM, Påhl Melin wrote: > >> I need to use timers in a low level library where I need to specify >> asynchronous callbacks to a timer function. I will not have any run >> loop so I cannot use NSTimer. Are there any low level timer API to use >> instead? I haven't found anything useful (yet) on google nor ADC. I >> assume there must exist some Mach or BSD level API:s that can be used? >> >> Any suggestions? >> >> / Påhl >> _______________________________________________ >> >> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) >> >> Please do not post admin requests or moderator comments to the list. >> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >> >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/cocoa-dev/nathan_day%40mac.com >> >> This email sent to [EMAIL PROTECTED] > > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
