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diff --git a/Source/WebKit2/Platform/qt/MappedMemoryPool.h b/Source/WebKit2/Platform/qt/MappedMemoryPool.h
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-/*
- * 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