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1 | #ifndef __KOLIBRI_HEAP_H_INCLUDED_ |
1 | #ifndef __KOLIBRI_HEAP_H_INCLUDED_ |
2 | #define __KOLIBRI_HEAP_H_INCLUDED_ |
2 | #define __KOLIBRI_HEAP_H_INCLUDED_ |
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3 | 3 | ||
4 | #include |
4 | #include "kolibri.h" |
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5 | #include |
5 | #include "memheap.h" |
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6 | 6 | ||
7 | // Kolibri memory heap interface. |
7 | // Kolibri memory heap interface. |
8 | - | ||
9 | namespace Kolibri // All kolibri functions, types and data are nested in the (Kolibri) namespace. |
- | |
10 | { |
8 | |
11 | void *Alloc(unsigned int size); |
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12 | void *ReAlloc(void *mem, unsigned int size); |
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13 | void Free(void *mem); |
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14 | } |
- | |
15 | - | ||
16 | #ifdef __KOLIBRI__ |
- | |
17 | - | ||
18 | namespace Kolibri |
- | |
19 | { |
- | |
20 | - | ||
21 | // Global variables |
- | |
22 | - | ||
23 | MemoryHeap::TFreeSpace _KolibriFreeSpace; |
- | |
24 | MemoryHeap::TMemBlock _KolibriMemBlock; |
- | |
25 | TMutex _MemHeapMutex = KOLIBRI_MUTEX_INIT; |
- | |
26 | - | ||
27 | // Functions |
9 | namespace Kolibri // All kolibri functions, types and data are nested in the (Kolibri) namespace. |
28 | - | ||
29 | void *_HeapInit(void *begin, void *use_end, void *end) |
- | |
30 | { |
- | |
31 | MemoryHeap::InitFreeSpace(_KolibriFreeSpace); |
- | |
32 | _KolibriMemBlock = MemoryHeap::CreateBlock(begin, end, _KolibriFreeSpace); |
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33 | unsigned int use_beg = (unsigned int)MemoryHeap::BlockBegin(_KolibriMemBlock) + |
- | |
34 | MemoryHeap::BlockAddSize - MemoryHeap::BlockEndSize; |
- | |
35 | unsigned int use_size = (unsigned int)use_end; |
10 | { |
36 | if (use_size <= use_beg) return 0; |
11 | long _HeapInit() |
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37 | else use_size -= use_beg; |
- | |
38 | return MemoryHeap::Alloc(_KolibriFreeSpace, use_size); |
- | |
39 | } |
- | |
40 | - | ||
41 | bool _SetUseMemory(unsigned int use_mem); |
12 | { |
42 | 13 | return MemoryHeap::mem_Init(); |
|
43 | int _RecalculateUseMemory(unsigned int use_mem); |
- | |
44 | - | ||
45 | void *Alloc(unsigned int size) |
- | |
46 | { |
- | |
47 | if (!size) return 0; |
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48 | Lock(&_MemHeapMutex); |
- | |
49 | void *res = MemoryHeap::Alloc(_KolibriFreeSpace, size); |
- | |
50 | if (!res) |
- | |
51 | { |
14 | } |
52 | unsigned use_mem = (unsigned int)MemoryHeap::BlockEndFor(_KolibriMemBlock, size); |
- | |
53 | if (_SetUseMemory(_RecalculateUseMemory(use_mem))) |
- | |
54 | { |
- | |
55 | res = MemoryHeap::Alloc(_KolibriFreeSpace, size); |
- | |
56 | } |
15 | |
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57 | } |
16 | void *Alloc(unsigned int size) |
58 | UnLock(&_MemHeapMutex); |
17 | { |
59 | return res; |
- | |
60 | } |
- | |
61 | - | ||
62 | void *ReAlloc(void *mem, unsigned int size) |
- | |
63 | { |
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64 | Lock(&_MemHeapMutex); |
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65 | void *res = MemoryHeap::ReAlloc(_KolibriFreeSpace, mem, size); |
- | |
66 | if (!res && size) |
18 | return MemoryHeap::mem_Alloc(size); |
67 | { |
- | |
68 | unsigned use_mem = (unsigned int)MemoryHeap::BlockEndFor(_KolibriMemBlock, size); |
- | |
69 | if (_SetUseMemory(_RecalculateUseMemory(use_mem))) |
- | |
70 | { |
- | |
71 | res = MemoryHeap::ReAlloc(_KolibriFreeSpace, mem, size); |
19 | } |
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72 | } |
20 | |
73 | } |
21 | void *ReAlloc(void *mem, unsigned int size) |
74 | UnLock(&_MemHeapMutex); |
- | |
75 | return res; |
22 | { |
76 | } |
- | |
77 | 23 | return MemoryHeap::mem_ReAlloc(size, mem); |
|
78 | void Free(void *mem) |
- | |
79 | { |
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80 | Lock(&_MemHeapMutex); |
24 | } |
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81 | MemoryHeap::Free(_KolibriFreeSpace, mem); |
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82 | UnLock(&_MemHeapMutex); |
- | |
83 | } |
25 |