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+/****************************************************************************
+**
+** 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