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author | hjk <qtc-committer@nokia.com> | 2009-01-26 16:19:24 +0100 |
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committer | hjk <qtc-committer@nokia.com> | 2009-01-26 16:19:24 +0100 |
commit | fe0533de2a634ca377c2d8a0073e0eb2cbf89abf (patch) | |
tree | 29d3d30e6cc5a1068a94097a5660bc4d133a205f /src/shared/cplusplus/MemoryPool.h | |
parent | c85ba53365d606192069a841ed806979f17d80bc (diff) | |
download | qt-creator-fe0533de2a634ca377c2d8a0073e0eb2cbf89abf.tar.gz |
Fixes: move all files in shared/* to src/shared/*
Diffstat (limited to 'src/shared/cplusplus/MemoryPool.h')
-rw-r--r-- | src/shared/cplusplus/MemoryPool.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/shared/cplusplus/MemoryPool.h b/src/shared/cplusplus/MemoryPool.h new file mode 100644 index 0000000000..13c61c9d24 --- /dev/null +++ b/src/shared/cplusplus/MemoryPool.h @@ -0,0 +1,120 @@ +/*************************************************************************** +** +** This file is part of Qt Creator +** +** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). +** +** Contact: Qt Software Information (qt-info@nokia.com) +** +** +** Non-Open Source Usage +** +** Licensees may use this file in accordance with the Qt Beta Version +** License Agreement, Agreement version 2.2 provided with the Software or, +** alternatively, in accordance with the terms contained in a written +** agreement between you and Nokia. +** +** GNU General Public License Usage +** +** Alternatively, this file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the packaging +** of this file. Please review the following information to ensure GNU +** General Public Licensing requirements will be met: +** +** http://www.fsf.org/licensing/licenses/info/GPLv2.html and +** http://www.gnu.org/copyleft/gpl.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt GPL Exception +** version 1.3, included in the file GPL_EXCEPTION.txt in this package. +** +***************************************************************************/ +// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com> +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. + +#ifndef CPLUSPLUS_MEMORYPOOL_H +#define CPLUSPLUS_MEMORYPOOL_H + +#include "CPlusPlusForwardDeclarations.h" +#include <cstddef> +#include <new> + +CPLUSPLUS_BEGIN_HEADER +CPLUSPLUS_BEGIN_NAMESPACE + +class CPLUSPLUS_EXPORT MemoryPool +{ + MemoryPool(const MemoryPool &other); + void operator =(const MemoryPool &other); + +public: + MemoryPool(); + ~MemoryPool(); + + bool initializeAllocatedMemory() const; + void setInitializeAllocatedMemory(bool initializeAllocatedMemory); + + inline void *allocate(size_t size) + { + size = (size + 7) & ~7; + if (ptr && (ptr + size < end)) { + void *addr = ptr; + ptr += size; + return addr; + } + return allocate_helper(size); + } + +private: + void *allocate_helper(size_t size); + +private: + bool _initializeAllocatedMemory; + char **_blocks; + int _allocatedBlocks; + int _blockCount; + char *ptr, *end; + + enum + { + BLOCK_SIZE = 8 * 1024, + DEFAULT_BLOCK_COUNT = 8 + }; +}; + +class CPLUSPLUS_EXPORT Managed +{ + Managed(const Managed &other); + void operator = (const Managed &other); + +public: + Managed(); + virtual ~Managed(); + + void *operator new(size_t size, MemoryPool *pool); + void operator delete(void *); + void operator delete(void *, MemoryPool *); +}; + +CPLUSPLUS_END_NAMESPACE +CPLUSPLUS_END_HEADER + +#endif // CPLUSPLUS_MEMORYPOOL_H |