109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
#ifndef _DEMEMPOOL_HPP
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#define _DEMEMPOOL_HPP
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/*-------------------------------------------------------------------------
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* drawElements C++ Base Library
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* -----------------------------
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*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*//*!
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* \file
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* \brief Memory pool (deMemPool wrapper).
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*//*--------------------------------------------------------------------*/
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#include "deDefs.hpp"
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#include "deMemPool.h"
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#include <new>
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namespace de
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{
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/*--------------------------------------------------------------------*//*!
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* \brief Memory pool
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*//*--------------------------------------------------------------------*/
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class MemPool
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{
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public:
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MemPool (const deMemPoolUtil* util = DE_NULL, deUint32 flags = 0u);
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MemPool (MemPool* parent);
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~MemPool (void);
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deMemPool* getRawPool (void) { return m_pool; }
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int getNumChildren (void) const { return deMemPool_getNumChildren(m_pool); }
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deUintptr getNumAllocatedBytes (bool recurse) const { return deMemPool_getNumAllocatedBytes(m_pool, recurse ? DE_TRUE : DE_FALSE); }
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deUintptr getCapacity (bool recurse) const { return deMemPool_getCapacity(m_pool, recurse ? DE_TRUE : DE_FALSE); }
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void* alloc (deUintptr numBytes);
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void* alignedAlloc (deUintptr numBytes, deUint32 alignBytes);
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private:
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MemPool (const MemPool& other); // Not allowed!
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MemPool& operator= (const MemPool& other); // Not allowed!
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deMemPool* m_pool;
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};
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// MemPool utils.
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char* copyToPool (de::MemPool* pool, const char* string);
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// MemPool inline implementations.
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inline MemPool::MemPool (const deMemPoolUtil* util, deUint32 flags)
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{
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m_pool = deMemPool_createRoot(util, flags);
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if (!m_pool)
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throw std::bad_alloc();
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}
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inline MemPool::MemPool (MemPool* parent)
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{
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m_pool = deMemPool_create(parent->m_pool);
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if (!m_pool)
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throw std::bad_alloc();
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}
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inline MemPool::~MemPool (void)
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{
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deMemPool_destroy(m_pool);
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}
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inline void* MemPool::alloc (deUintptr numBytes)
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{
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// \todo [2013-02-07 pyry] Use deUintptr in deMemPool.
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DE_ASSERT((deUintptr)(int)numBytes == numBytes);
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void* ptr = deMemPool_alloc(m_pool, (int)numBytes);
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if (!ptr)
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throw std::bad_alloc();
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return ptr;
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}
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inline void* MemPool::alignedAlloc (deUintptr numBytes, deUint32 alignBytes)
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{
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// \todo [2013-02-07 pyry] Use deUintptr in deMemPool.
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DE_ASSERT((deUintptr)(int)numBytes == numBytes);
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void* ptr = deMemPool_alignedAlloc(m_pool, (int)numBytes, alignBytes);
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if (!ptr)
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throw std::bad_alloc();
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return ptr;
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}
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} // de
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#endif // _DEMEMPOOL_HPP
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