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authorWolfgang Beck <wolfgang.beck@nokia.com>2010-01-29 11:06:50 +1000
committerWolfgang Beck <wolfgang.beck@nokia.com>2010-01-29 11:06:50 +1000
commitd94808b88b3a205f8e4e19b180eb83b9daed224d (patch)
tree701968d3cd9c8a74c3ae65576eb36873609b4256 /tools/icheck/parser/src/shared/cplusplus/MemoryPool.cpp
parent479b91b3a71106c7ac9ce17f3ce6eff4479409e0 (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.cpp138
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 *)
+{ }
+
+