1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
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
|
