/*
* Copyright (c) 2008, 2009, 2010, 2011
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#import "OFObject.h"
/**
* \brief A pool that keeps track of objects to release.
*
* The OFAutoreleasePool class is a class that keeps track of objects that will
* be released when the autorelease pool is released.
*
* Every thread has its own stack of autorelease pools.
*/
@interface OFAutoreleasePool: OFObject
{
OFAutoreleasePool *next, *prev;
id *objects;
size_t count, size;
}
/**
* Adds an object to the autorelease pool at the top of the thread-specific
* stack.
*
* \param obj The object to add to the autorelease pool
*/
+ (void)addObject: (id)obj;
+ (void)releaseAll;
/**
* Adds an object to the specific autorelease pool.
*
* \param obj The object to add to the autorelease pool
*/
- (void)addObject: (id)obj;
/**
* Releases all objects in the autorelease pool.
*
* This does not free the memory allocated to store pointers to the objects in
* the pool, so reusing the pool does not allocate any memory until the previous
* number of objects is exceeded. It behaves this way to optimize loops that
* always work with the same or similar number of objects and call relaseObjects
* at the end of the loop, which is propably the most common case for
* releaseObjects.
*
* If a garbage collector is added in the future, it will tell the GC that now
* is a good time to clean up, as this is often used after a lot of objects
* have been added to the pool that should be released before the next iteration
* of a loop, which adds objects again. Thus, it is usually a clean up call.
*/
- (void)releaseObjects;
/**
* Releases all objects in the autorelease pool and deallocates the pool.
*/
- (void)release;
/**
* Calling drain is equivalent to calling release.
*
* If a garbage collector is added in the future, it will tell the GC that now
* is a good time to clean up.
*/
- (void)drain;
@end