1 /**************************************************************************
3 ** This file is part of Qt Creator
5 ** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
7 ** Contact: Nokia Corporation (qt-info@nokia.com)
11 ** This file contains pre-release code and may not be distributed.
12 ** You may use this file in accordance with the terms and conditions
13 ** contained in the Technology Preview License Agreement accompanying
16 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 2.1 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 2.1 requirements
23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
25 ** In addition, as a special exception, Nokia gives you certain additional
26 ** rights. These rights are described in the Nokia Qt LGPL Exception
27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
29 ** If you have questions regarding the use of this file, please contact
30 ** Nokia at qt-info@nokia.com.
32 **************************************************************************/
33 // Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
35 // Permission is hereby granted, free of charge, to any person obtaining a copy
36 // of this software and associated documentation files (the "Software"), to deal
37 // in the Software without restriction, including without limitation the rights
38 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
39 // copies of the Software, and to permit persons to whom the Software is
40 // furnished to do so, subject to the following conditions:
42 // The above copyright notice and this permission notice shall be included in
43 // all copies or substantial portions of the Software.
45 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
46 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
47 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
48 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
49 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
50 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
53 #include "MemoryPool.h"
57 using namespace CPlusPlus;
59 MemoryPool::MemoryPool()
67 MemoryPool::~MemoryPool()
70 for (int i = 0; i < _allocatedBlocks; ++i) {
71 if (char *b = _blocks[i])
79 void MemoryPool::reset()
85 void *MemoryPool::allocate_helper(size_t size)
87 assert(size < BLOCK_SIZE);
89 if (++_blockCount == _allocatedBlocks) {
90 if (! _allocatedBlocks)
91 _allocatedBlocks = DEFAULT_BLOCK_COUNT;
93 _allocatedBlocks *= 2;
95 _blocks = (char **) realloc(_blocks, sizeof(char *) * _allocatedBlocks);
97 for (int index = _blockCount; index < _allocatedBlocks; ++index)
101 char *&block = _blocks[_blockCount];
104 block = (char *) std::malloc(BLOCK_SIZE);
107 _end = _ptr + BLOCK_SIZE;
114 RecursiveMemoryPool::RecursiveMemoryPool(MemoryPool *pool)
116 _blockCount(pool->_blockCount),
122 RecursiveMemoryPool::~RecursiveMemoryPool()
124 _pool->_blockCount = _blockCount;
135 void *Managed::operator new(size_t size, MemoryPool *pool)
136 { return pool->allocate(size); }
138 void Managed::operator delete(void *)
141 void Managed::operator delete(void *, MemoryPool *)