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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. |
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10 | { |
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11 | void *Alloc(unsigned int size); |
9 | namespace Kolibri // All kolibri functions, types and data are nested in the (Kolibri) namespace. |
12 | void *ReAlloc(void *mem, unsigned int size); |
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13 | void Free(void *mem); |
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14 | } |
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15 | - | ||
16 | #ifdef __KOLIBRI__ |
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17 | - | ||
18 | namespace Kolibri |
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19 | { |
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20 | - | ||
21 | // Global variables |
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22 | - | ||
23 | MemoryHeap::TFreeSpace _KolibriFreeSpace; |
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24 | MemoryHeap::TMemBlock _KolibriMemBlock; |
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25 | TMutex _MemHeapMutex = KOLIBRI_MUTEX_INIT; |
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26 | - | ||
27 | // Functions |
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28 | 10 | { |
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29 | void *_HeapInit(void *begin, void *use_end, void *end) |
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30 | { |
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31 | MemoryHeap::InitFreeSpace(_KolibriFreeSpace); |
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32 | _KolibriMemBlock = MemoryHeap::CreateBlock(begin, end, _KolibriFreeSpace); |
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33 | unsigned int use_beg = (unsigned int)MemoryHeap::BlockBegin(_KolibriMemBlock) + |
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34 | MemoryHeap::BlockAddSize - MemoryHeap::BlockEndSize; |
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35 | unsigned int use_size = (unsigned int)use_end; |
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36 | if (use_size <= use_beg) return 0; |
11 | long _HeapInit() |
37 | else use_size -= use_beg; |
12 | { |
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38 | return MemoryHeap::Alloc(_KolibriFreeSpace, use_size); |
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39 | } |
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40 | - | ||
41 | bool _SetUseMemory(unsigned int use_mem); |
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42 | 13 | return MemoryHeap::mem_Init(); |
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43 | int _RecalculateUseMemory(unsigned int use_mem); |
14 | } |
44 | - | ||
45 | void *Alloc(unsigned int size) |
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46 | { |
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47 | if (!size) return 0; |
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48 | Lock(&_MemHeapMutex); |
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49 | void *res = MemoryHeap::Alloc(_KolibriFreeSpace, size); |
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50 | if (!res) |
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51 | { |
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52 | unsigned use_mem = (unsigned int)MemoryHeap::BlockEndFor(_KolibriMemBlock, size); |
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53 | if (_SetUseMemory(_RecalculateUseMemory(use_mem))) |
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54 | { |
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55 | res = MemoryHeap::Alloc(_KolibriFreeSpace, size); |
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56 | } |
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57 | } |
16 | void *Alloc(unsigned int size) |
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58 | UnLock(&_MemHeapMutex); |
17 | { |
59 | return res; |
18 | return MemoryHeap::mem_Alloc(size); |
60 | } |
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61 | - | ||
62 | void *ReAlloc(void *mem, unsigned int size) |
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63 | { |
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64 | Lock(&_MemHeapMutex); |
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65 | void *res = MemoryHeap::ReAlloc(_KolibriFreeSpace, mem, size); |
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66 | if (!res && size) |
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67 | { |
19 | } |
68 | unsigned use_mem = (unsigned int)MemoryHeap::BlockEndFor(_KolibriMemBlock, size); |
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69 | if (_SetUseMemory(_RecalculateUseMemory(use_mem))) |
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70 | { |
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71 | res = MemoryHeap::ReAlloc(_KolibriFreeSpace, mem, size); |
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72 | } |
20 | |
Line 73... | Line 21... | ||
73 | } |
21 | void *ReAlloc(void *mem, unsigned int size) |
74 | UnLock(&_MemHeapMutex); |
22 | { |
75 | return res; |
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76 | } |
23 | return MemoryHeap::mem_ReAlloc(size, mem); |
77 | - | ||
78 | void Free(void *mem) |
24 | } |
79 | { |
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80 | Lock(&_MemHeapMutex); |
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81 | MemoryHeap::Free(_KolibriFreeSpace, mem); |
25 | |
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82 | UnLock(&_MemHeapMutex); |
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83 | } |
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84 | 26 | void Free(void *mem) |