On Aug 11, 2009, at 8:58 PM, DairyKnight wrote:
I've been tracing an iPhone application, and found out the
NSPush/PopAutoreleasePool pair being called every time before/after
entering
the event loop. I did some googling about these apis and they seem
to be
undocumented.
They are not APIs, which is why they are not documented. API stands
for Application Programming Interface. Those functions are not
intended for applications to call. They are presumably SPI, which
stands System Programming Interface. The latter are private to the
implementers of the system; they are internal to the frameworks.
Since those functions are not intended for applications or other non-
Apple code to invoke, why would you expect them to be documented? Any
library or framework is bound to have many more functions meant for
internal use than functions intended as external interface to the
functionality provided by the library or framework. If you're going
to seek to understand how all of those internal functions work, you're
going to make a whole lot more work for yourself for essentially no
benefit.
Regards,
Ken
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