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Diffstat (limited to 'Source/WebKit2/Platform/qt/MappedMemoryPool.h')
-rw-r--r-- | Source/WebKit2/Platform/qt/MappedMemoryPool.h | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/Source/WebKit2/Platform/qt/MappedMemoryPool.h b/Source/WebKit2/Platform/qt/MappedMemoryPool.h deleted file mode 100644 index 8d6af8c..0000000 --- a/Source/WebKit2/Platform/qt/MappedMemoryPool.h +++ /dev/null @@ -1,109 +0,0 @@ -/* - * Copyright (C) 2010 Apple Inc. All rights reserved. - * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) - * Copyright (C) 2010 University of Szeged - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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. - */ - -#ifndef MappedMemoryPool_h -#define MappedMemoryPool_h - -#include <QFile> -#include <QObject> -#include <wtf/StdLibExtras.h> -#include <wtf/Vector.h> - -namespace WebKit { - -class MappedMemoryPool; - -struct MappedMemory { - - QString mappedFileName() const - { - ASSERT(file); - ASSERT(mappedBytes); - return fileName; - } - - void markFree() - { - ASSERT(mappedBytes); - dataPtr->isFree = true; - } - - uchar* data() const - { - ASSERT(mappedBytes); - return dataPtr->bytes; - } - -private: - friend class MappedMemoryPool; - - MappedMemory() - : file(0) - , mappedBytes(0) - , dataSize(0) - { - } - - void markUsed() { dataPtr->isFree = false; } - - size_t mapSize() const { return dataSize + sizeof(Data); } - bool isFree() const { return dataPtr->isFree; } - - struct Data { - uint32_t isFree; // keep bytes aligned - uchar bytes[]; - }; - - QFile* file; - QString fileName; - union { - uchar* mappedBytes; - Data* dataPtr; - }; - size_t dataSize; -}; - -class MappedMemoryPool : QObject { - Q_OBJECT -public: - static MappedMemoryPool* instance(); - - MappedMemory* mapMemory(size_t size); - MappedMemory* mapFile(QString fileName, size_t size); - -private: - MappedMemoryPool() { } - ~MappedMemoryPool(); - - static MappedMemoryPool* theInstance; - - Vector<MappedMemory> m_pool; -}; - -} // namespace WebKit - -#endif // MappedMemoryPool_h |