/** Declaration of extension methods for base additions Copyright (C) 2003-2010 Free Software Foundation, Inc. Written by: Richard Frith-Macdonald and: Adam Fedor This file is part of the GNUstep Base Library. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA. */ #import #if !defined (GNUSTEP) #import "GNUstep.h" #endif @class NSHashTable; @interface NSObject(MemoryFootprint) /* This method returns the memory usage of the receiver, excluding any * objects already present in the exclude table.
* The argument is a hash table configured to hold non-retained pointer * objects and is used to inform the receiver that its size should not * be counted again if it's already in the table.
* The NSObject implementation returns zero if the receiver is in the * table, but otherwise adds itself to the table and returns its memory * footprint (the sum of all of its instance variables, but not any * memory pointed to by those variables).
* Subclasses should override this method by calling the superclass * implementation, and either return the result (if it was zero) or * return that value plus the sizes of any memory owned by the receiver * (eg found by calling the same method on objects pointed to by the * receiver's instance variables). */ - (NSUInteger) sizeInBytesExcluding: (NSHashTable*)exclude; @end