diff options
author | Wolfgang Beck <wolfgang.beck@nokia.com> | 2010-01-29 11:06:50 +1000 |
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committer | Wolfgang Beck <wolfgang.beck@nokia.com> | 2010-01-29 11:06:50 +1000 |
commit | d94808b88b3a205f8e4e19b180eb83b9daed224d (patch) | |
tree | 701968d3cd9c8a74c3ae65576eb36873609b4256 /tools/icheck/parser/src/shared/cplusplus/MemoryPool.cpp | |
parent | 479b91b3a71106c7ac9ce17f3ce6eff4479409e0 (diff) |
Remove library icheck project.
Diffstat (limited to 'tools/icheck/parser/src/shared/cplusplus/MemoryPool.cpp')
-rw-r--r-- | tools/icheck/parser/src/shared/cplusplus/MemoryPool.cpp | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/tools/icheck/parser/src/shared/cplusplus/MemoryPool.cpp b/tools/icheck/parser/src/shared/cplusplus/MemoryPool.cpp new file mode 100644 index 0000000000..4e0004f0a1 --- /dev/null +++ b/tools/icheck/parser/src/shared/cplusplus/MemoryPool.cpp @@ -0,0 +1,138 @@ +/************************************************************************** +** +** This file is part of Qt Creator +** +** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** Commercial Usage +** +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://qt.nokia.com/contact. +** +**************************************************************************/ +// 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. + +#include "MemoryPool.h" +#include <cstring> +#include <cassert> + +using namespace CPlusPlus; + +MemoryPool::MemoryPool() + : _initializeAllocatedMemory(true), + _blocks(0), + _allocatedBlocks(0), + _blockCount(-1), + ptr(0), + end(0) +{ } + +MemoryPool::~MemoryPool() +{ + if (_blockCount != -1) { + for (int i = 0; i < _blockCount + 1; ++i) { + std::free(_blocks[i]); + } + } + + if (_blocks) + std::free(_blocks); +} + +bool MemoryPool::initializeAllocatedMemory() const +{ return _initializeAllocatedMemory; } + +void MemoryPool::setInitializeAllocatedMemory(bool initializeAllocatedMemory) +{ _initializeAllocatedMemory = initializeAllocatedMemory; } + +void *MemoryPool::allocate_helper(size_t size) +{ + assert(size < BLOCK_SIZE); + + if (++_blockCount == _allocatedBlocks) { + if (! _allocatedBlocks) + _allocatedBlocks = 8; + else + _allocatedBlocks *= 2; + + _blocks = (char **) realloc(_blocks, sizeof(char *) * _allocatedBlocks); + } + + char *&block = _blocks[_blockCount]; + + if (_initializeAllocatedMemory) + block = (char *) std::calloc(1, BLOCK_SIZE); + else + block = (char *) std::malloc(BLOCK_SIZE); + + ptr = block; + end = ptr + BLOCK_SIZE; + + void *addr = ptr; + ptr += size; + return addr; +} + +MemoryPool::State MemoryPool::state() const +{ return State(ptr, _blockCount); } + +void MemoryPool::rewind(const State &state) +{ + if (_blockCount == state.blockCount && state.ptr < ptr) { + if (_initializeAllocatedMemory) + std::memset(state.ptr, '\0', ptr - state.ptr); + + ptr = state.ptr; + } +} + +Managed::Managed() +{ } + +Managed::~Managed() +{ } + +void *Managed::operator new(size_t size, MemoryPool *pool) +{ return pool->allocate(size); } + +void Managed::operator delete(void *) +{ } + +void Managed::operator delete(void *, MemoryPool *) +{ } + + |