Objective-C uses reference counting for its memory management and also provides a mechanism for decrementing the reference count of an object when control returns to the event loop or some other well-defined point.
The following functions are direct equivalents of the memory management methods in the
NSObject
class:
In addition, the function make-autorelease-pool and the macro with-autorelease-pool can be used to make autorelease pools if the standard one in the event loop is not available.
LispWorks Objective-C and Cocoa Interface User Guide and Reference Manual - 15 Dec 2011
