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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:41 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:41 -0800 |
commit | 648161bb0edfc3d43db63caed5cc5213bc6cb78f (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /JavaScriptCore/wtf/RefCounted.h | |
parent | a65af38181ac7d34544586bdb5cd004de93897ad (diff) | |
download | external_webkit-648161bb0edfc3d43db63caed5cc5213bc6cb78f.zip external_webkit-648161bb0edfc3d43db63caed5cc5213bc6cb78f.tar.gz external_webkit-648161bb0edfc3d43db63caed5cc5213bc6cb78f.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'JavaScriptCore/wtf/RefCounted.h')
-rw-r--r-- | JavaScriptCore/wtf/RefCounted.h | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/JavaScriptCore/wtf/RefCounted.h b/JavaScriptCore/wtf/RefCounted.h deleted file mode 100644 index 2dd5b2a..0000000 --- a/JavaScriptCore/wtf/RefCounted.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library 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 Library General Public License - * along with this library; see the file COPYING.LIB. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - */ - -#ifndef RefCounted_h -#define RefCounted_h - -#include <wtf/Assertions.h> -#include <wtf/Noncopyable.h> - -namespace WTF { - -// This base class holds the non-template methods and attributes. -// The RefCounted class inherits from it reducing the template bloat -// generated by the compiler (technique called template hoisting). -class RefCountedBase : Noncopyable { -public: - void ref() - { - ASSERT(!m_deletionHasBegun); - ++m_refCount; - } - - bool hasOneRef() const - { - ASSERT(!m_deletionHasBegun); - return m_refCount == 1; - } - - int refCount() const - { - return m_refCount; - } - -protected: - RefCountedBase(int initialRefCount) - : m_refCount(initialRefCount) -#ifndef NDEBUG - , m_deletionHasBegun(false) -#endif - { - } - - ~RefCountedBase() {} - - // Returns whether the pointer should be freed or not. - bool derefBase() - { - ASSERT(!m_deletionHasBegun); - ASSERT(m_refCount > 0); - if (m_refCount == 1) { -#ifndef NDEBUG - m_deletionHasBegun = true; -#endif - return true; - } - - --m_refCount; - return false; - } - -private: - int m_refCount; -#ifndef NDEBUG - bool m_deletionHasBegun; -#endif -}; - - -template<class T> class RefCounted : public RefCountedBase { -public: - RefCounted(int initialRefCount = 1) - : RefCountedBase(initialRefCount) - { - } - - void deref() - { - if (derefBase()) - delete static_cast<T*>(this); - } - -protected: - ~RefCounted() {} -}; - -} // namespace WTF - -using WTF::RefCounted; - -#endif // RefCounted_h |