mirror of
https://github.com/clementine-player/Clementine
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73 lines
2.7 KiB
Objective-C
73 lines
2.7 KiB
Objective-C
//
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// GTMGarbageCollection.h
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//
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// Copyright 2007-2008 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy
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// of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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//
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#import <Foundation/Foundation.h>
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#import "GTMDefines.h"
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// This allows us to easily move our code from GC to non GC.
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// They are no-ops unless we are require Leopard or above.
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// See
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// http://developer.apple.com/documentation/Cocoa/Conceptual/GarbageCollection/index.html
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// and
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// http://developer.apple.com/documentation/Cocoa/Conceptual/GarbageCollection/Articles/gcCoreFoundation.html#//apple_ref/doc/uid/TP40006687-SW1
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// for details.
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#if (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5) && !GTM_IPHONE_SDK
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// General use would be to call this through GTMCFAutorelease
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// but there may be a reason the you want to make something collectable
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// but not autoreleased, especially in pure GC code where you don't
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// want to bother with the nop autorelease. Done as a define instead of an
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// inline so that tools like Clang's scan-build don't report code as leaking.
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#define GTMNSMakeCollectable(cf) ((id)NSMakeCollectable(cf))
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// GTMNSMakeUncollectable is for global maps, etc. that we don't
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// want released ever. You should still retain these in non-gc code.
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GTM_INLINE void GTMNSMakeUncollectable(id object) {
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[[NSGarbageCollector defaultCollector] disableCollectorForPointer:object];
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}
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// Hopefully no code really needs this, but GTMIsGarbageCollectionEnabled is
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// a common way to check at runtime if GC is on.
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// There are some places where GC doesn't work w/ things w/in Apple's
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// frameworks, so this is here so GTM unittests and detect it, and not run
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// individual tests to work around bugs in Apple's frameworks.
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GTM_INLINE BOOL GTMIsGarbageCollectionEnabled(void) {
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return ([NSGarbageCollector defaultCollector] != nil);
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}
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#else
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#define GTMNSMakeCollectable(cf) ((id)(cf))
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GTM_INLINE void GTMNSMakeUncollectable(id object) {
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}
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GTM_INLINE BOOL GTMIsGarbageCollectionEnabled(void) {
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return NO;
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}
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#endif
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// GTMCFAutorelease makes a CF object collectable in GC mode, or adds it
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// to the autorelease pool in non-GC mode. Either way it is taken care
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// of. Done as a define instead of an inline so that tools like Clang's
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// scan-build don't report code as leaking.
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#define GTMCFAutorelease(cf) ([GTMNSMakeCollectable(cf) autorelease])
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