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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_ |
3 | 3 | ||
4 | #include |
4 | #include "kolibri.h" |
5 | #include |
5 | #include "memheap.h" |
6 | 6 | ||
7 | // Kolibri memory heap interface. |
7 | // Kolibri memory heap interface. |
8 | 8 | ||
9 | namespace Kolibri // All kolibri functions, types and data are nested in the (Kolibri) namespace. |
9 | namespace Kolibri // All kolibri functions, types and data are nested in the (Kolibri) namespace. |
10 | { |
10 | { |
11 | void *Alloc(unsigned int size); |
- | |
12 | void *ReAlloc(void *mem, unsigned int size); |
- | |
13 | void Free(void *mem); |
11 | long _HeapInit() |
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 |
- | |
28 | - | ||
29 | void *_HeapInit(void *begin, void *use_end, void *end) |
- | |
30 | { |
12 | { |
31 | MemoryHeap::InitFreeSpace(_KolibriFreeSpace); |
- | |
32 | _KolibriMemBlock = MemoryHeap::CreateBlock(begin, end, _KolibriFreeSpace); |
- | |
33 | unsigned int use_beg = (unsigned int)MemoryHeap::BlockBegin(_KolibriMemBlock) + |
- | |
34 | MemoryHeap::BlockAddSize - MemoryHeap::BlockEndSize; |
- | |
35 | unsigned int use_size = (unsigned int)use_end; |
- | |
36 | if (use_size <= use_beg) return 0; |
- | |
37 | else use_size -= use_beg; |
- | |
38 | return MemoryHeap::Alloc(_KolibriFreeSpace, use_size); |
13 | return MemoryHeap::mem_Init(); |
39 | } |
14 | } |
40 | - | ||
41 | bool _SetUseMemory(unsigned int use_mem); |
- | |
42 | - | ||
43 | int _RecalculateUseMemory(unsigned int use_mem); |
- | |
44 | 15 | ||
45 | void *Alloc(unsigned int size) |
16 | void *Alloc(unsigned int size) |
46 | { |
- | |
47 | if (!size) return 0; |
- | |
48 | Lock(&_MemHeapMutex); |
- | |
49 | void *res = MemoryHeap::Alloc(_KolibriFreeSpace, size); |
- | |
50 | if (!res) |
- | |
51 | { |
- | |
52 | unsigned use_mem = (unsigned int)MemoryHeap::BlockEndFor(_KolibriMemBlock, size); |
- | |
53 | if (_SetUseMemory(_RecalculateUseMemory(use_mem))) |
- | |
54 | { |
17 | { |
55 | res = MemoryHeap::Alloc(_KolibriFreeSpace, size); |
- | |
56 | } |
- | |
57 | } |
- | |
58 | UnLock(&_MemHeapMutex); |
- | |
59 | return res; |
18 | return MemoryHeap::mem_Alloc(size); |
60 | } |
19 | } |
61 | 20 | ||
62 | void *ReAlloc(void *mem, unsigned int size) |
21 | void *ReAlloc(void *mem, unsigned int size) |
63 | { |
22 | { |
64 | Lock(&_MemHeapMutex); |
- | |
65 | void *res = MemoryHeap::ReAlloc(_KolibriFreeSpace, mem, size); |
- | |
66 | if (!res && 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); |
23 | return MemoryHeap::mem_ReAlloc(size, mem); |
72 | } |
- | |
73 | } |
- | |
74 | UnLock(&_MemHeapMutex); |
- | |
75 | return res; |
- | |
76 | } |
24 | } |
77 | 25 | ||
78 | void Free(void *mem) |
26 | void Free(void *mem) |
79 | { |
27 | { |
80 | Lock(&_MemHeapMutex); |
- | |
81 | MemoryHeap::Free(_KolibriFreeSpace, mem); |
28 | MemoryHeap::mem_Free(mem); |
82 | UnLock(&_MemHeapMutex); |
- | |
83 | } |
29 | } |
84 | - | ||
85 | void _FreeAndThreadFinish(void *mem, int *exit_proc_now); |
- | |
86 | } |
30 | } |
87 | - | ||
88 | #endif // def __KOLIBRI__ |
- | |
89 | 31 | ||
90 | #endif // ndef __KOLIBRI_HEAP_H_INCLUDED_=> |
32 | #endif // ndef __KOLIBRI_HEAP_H_INCLUDED_ |