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Diffstat (limited to 'src/foundation/AutoDeallocatorAllocator.h')
-rw-r--r-- | src/foundation/AutoDeallocatorAllocator.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/foundation/AutoDeallocatorAllocator.h b/src/foundation/AutoDeallocatorAllocator.h new file mode 100644 index 0000000..5cbbc8b --- /dev/null +++ b/src/foundation/AutoDeallocatorAllocator.h @@ -0,0 +1,99 @@ +/**************************************************************************** +** +** Copyright (C) 2008-2012 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) any later version +** approved by the KDE Free Qt Foundation. The licenses are as published by +** the Free Software Foundation and appearing in the file LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef QT3DS_FOUNDATION_AUTO_DEALLOCATOR_ALLOCATOR_H +#define QT3DS_FOUNDATION_AUTO_DEALLOCATOR_ALLOCATOR_H +#pragma once + +#include "foundation/Qt3DSFoundation.h" +#include "foundation/Qt3DSContainers.h" +#include "foundation/Qt3DSBroadcastingAllocator.h" + +namespace qt3ds { +namespace foundation { + + using eastl::make_pair; + using eastl::pair; + + struct SSAutoDeallocatorAllocator : public NVAllocatorCallback + { + NVAllocatorCallback &m_Allocator; + nvhash_map<void *, size_t> m_Allocations; + SSAutoDeallocatorAllocator(NVFoundationBase &inFnd) + : m_Allocator(inFnd.getAllocator()) + , m_Allocations(inFnd.getAllocator(), "SSAutoDeallocatorAllocator::m_Allocations") + { + } + + SSAutoDeallocatorAllocator(NVAllocatorCallback &inAlloc) + : m_Allocator(inAlloc) + , m_Allocations(inAlloc, "SSAutoDeallocatorAllocator::m_Allocations") + { + } + + // Automatically deallocates everything that hasn't already been deallocated. + ~SSAutoDeallocatorAllocator() { deallocateAllAllocations(); } + + void deallocateAllAllocations() + { + for (nvhash_map<void *, size_t>::iterator iter = m_Allocations.begin(), + end = m_Allocations.end(); + iter != end; ++iter) + m_Allocator.deallocate(iter->first); + m_Allocations.clear(); + } + + void *allocate(size_t size, const char *typeName, const char *filename, int line, + int flags = 0) override + { + void *value = m_Allocator.allocate(size, typeName, filename, line, flags); + m_Allocations.insert(make_pair(value, size)); + return value; + } + + void *allocate(size_t size, const char *typeName, const char *filename, int line, + size_t alignment, size_t alignmentOffset) override + { + void *value = + m_Allocator.allocate(size, typeName, filename, line, alignment, alignmentOffset); + m_Allocations.insert(make_pair(value, size)); + return value; + } + void deallocate(void *ptr) override + { + nvhash_map<void *, size_t>::iterator iter = m_Allocations.find(ptr); + QT3DS_ASSERT(iter != m_Allocations.end()); + m_Allocator.deallocate(iter->first); + m_Allocations.erase(iter); + } + }; +} +} + +#endif |