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Diffstat (limited to 'Source/WebCore/platform/mac/WebCoreObjCExtras.mm')
-rw-r--r-- | Source/WebCore/platform/mac/WebCoreObjCExtras.mm | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/Source/WebCore/platform/mac/WebCoreObjCExtras.mm b/Source/WebCore/platform/mac/WebCoreObjCExtras.mm new file mode 100644 index 0000000..05d3e01 --- /dev/null +++ b/Source/WebCore/platform/mac/WebCoreObjCExtras.mm @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2007 Apple Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of + * its contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "WebCoreObjCExtras.h" + +#include <objc/objc-auto.h> +#include <objc/objc-runtime.h> +#include <wtf/Assertions.h> +#include <wtf/MainThread.h> +#include <wtf/Threading.h> +#include <wtf/UnusedParam.h> + +void WebCoreObjCFinalizeOnMainThread(Class cls) +{ + // This method relies on threading being initialized by the caller, otherwise + // WebCoreObjCScheduleDeallocateOnMainThread will crash. +#if !defined(BUILDING_ON_TIGER) && !defined(DONT_FINALIZE_ON_MAIN_THREAD) + objc_finalizeOnMainThread(cls); +#else + UNUSED_PARAM(cls); +#endif +} + +#ifdef BUILDING_ON_TIGER +static inline IMP method_getImplementation(Method method) +{ + return method->method_imp; +} +#endif + +typedef std::pair<Class, id> ClassAndIdPair; + +static void deallocCallback(void* context) +{ + ClassAndIdPair* pair = static_cast<ClassAndIdPair*>(context); + + Method method = class_getInstanceMethod(pair->first, @selector(dealloc)); + + IMP imp = method_getImplementation(method); + imp(pair->second, @selector(dealloc)); + + delete pair; +} + +bool WebCoreObjCScheduleDeallocateOnMainThread(Class cls, id object) +{ + ASSERT([object isKindOfClass:cls]); + + if (isMainThread()) + return false; + + ClassAndIdPair* pair = new ClassAndIdPair(cls, object); + callOnMainThread(deallocCallback, pair); + return true; +} + |