/*
* 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.
*/
/*
* This file replaces NSAutoreleasePool with OFAutoreleasePool when it is
* linked. This is done so there is no conflict because OFBlocks are used
* (blocks are OFBlocks as soon as ObjFW is linked). An application expecting
* an NSBlock, but getting an OFBlock because ObjFW is linked, would fail to
* autorelease the block otherwise, as the block would be in an
* OFAutoreleasePool. By replacing NSAutoreleasePool with OFAutoreleasePool,
* the application will still properly free the autoreleased block.
*/
#include "config.h"
#import <objc/runtime.h>
#import "OFAutoreleasePool.h"
static id
alloc(Class self, SEL _cmd)
{
return [OFAutoreleasePool alloc];
}
static void
addObject(Class self, SEL _cmd, id obj)
{
[OFAutoreleasePool addObject: obj];
}
static id
autorelease(id self, SEL _cmd)
{
[OFAutoreleasePool addObject: self];
return self;
}
static void __attribute__((constructor))
init(void)
{
Class NSAutoreleasePool = objc_getClass("NSAutoreleasePool");
Class NSObject = objc_getClass("NSObject");
Method allocMethod;
Method addObjectMethod;
Method autoreleaseMethod;
if (NSAutoreleasePool == Nil || NSObject == Nil)
return;
allocMethod = class_getClassMethod(NSAutoreleasePool,
@selector(alloc));
addObjectMethod = class_getClassMethod(NSAutoreleasePool,
@selector(addObject:));
autoreleaseMethod = class_getInstanceMethod(NSObject,
@selector(autorelease));
if (allocMethod == NULL || addObjectMethod == NULL ||
autoreleaseMethod == NULL)
return;
class_replaceMethod(NSAutoreleasePool->isa, @selector(alloc),
(IMP)alloc, method_getTypeEncoding(allocMethod));
class_replaceMethod(NSAutoreleasePool->isa, @selector(addObject:),
(IMP)addObject, method_getTypeEncoding(addObjectMethod));
class_replaceMethod(NSObject, @selector(autorelease),
(IMP)autorelease, method_getTypeEncoding(autoreleaseMethod));
}