Box2D: /build/box2d/src/box2d-2.4.1/include/box2d/b2_block_allocator.h Source File

| Box2D 2.4.1 A 2D physics engine for games

b2_block_allocator.h
1 // MIT License
2
3 // Copyright (c) 2019 Erin Catto
4
5 // Permission is hereby granted, free of charge, to any person obtaining a copy
6 // of this software and associated documentation files (the "Software"), to deal
7 // in the Software without restriction, including without limitation the rights
8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 // copies of the Software, and to permit persons to whom the Software is
10 // furnished to do so, subject to the following conditions:
11
12 // The above copyright notice and this permission notice shall be included in all
13 // copies or substantial portions of the Software.
14
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 // SOFTWARE.
22
23 #ifndef B2_BLOCK_ALLOCATOR_H
24 #define B2_BLOCK_ALLOCATOR_H
25
26 #include "b2_api.h"
27 #include "b2_settings.h"
28
29 const int32 b2_blockSizeCount = 14;
30
31 struct b2Block;
32 struct b2Chunk;
33
37 class B2_API b2BlockAllocator
38 {
39 public:
40 b2BlockAllocator();
41 ~b2BlockAllocator();
42
44 void* Allocate(int32 size);
45
47 void Free(void* p, int32 size);
48
49 void Clear();
50
51 private:
52
53 b2Chunk* m_chunks;
54 int32 m_chunkCount;
55 int32 m_chunkSpace;
56
57 b2Block* m_freeLists[b2_blockSizeCount];
58 };
59
60 #endif
b2_settings.h
b2BlockAllocator::Free
void Free(void *p, int32 size)
Free memory. This will use b2Free if the size is larger than b2_maxBlockSize.
b2BlockAllocator::Allocate
void * Allocate(int32 size)
Allocate memory. This will use b2Alloc if the size is larger than b2_maxBlockSize.
b2BlockAllocator
Definition: b2_block_allocator.h:38