1,90 → 1,32 |
#ifndef __KOLIBRI_HEAP_H_INCLUDED_ |
#define __KOLIBRI_HEAP_H_INCLUDED_ |
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#include <kolibri.h> |
#include <memheap.h> |
#include "kolibri.h" |
#include "memheap.h" |
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// Kolibri memory heap interface. |
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namespace Kolibri // All kolibri functions, types and data are nested in the (Kolibri) namespace. |
{ |
void *Alloc(unsigned int size); |
void *ReAlloc(void *mem, unsigned int size); |
void Free(void *mem); |
} |
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#ifdef __KOLIBRI__ |
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namespace Kolibri |
long _HeapInit() |
{ |
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// Global variables |
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MemoryHeap::TFreeSpace _KolibriFreeSpace; |
MemoryHeap::TMemBlock _KolibriMemBlock; |
TMutex _MemHeapMutex = KOLIBRI_MUTEX_INIT; |
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// Functions |
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void *_HeapInit(void *begin, void *use_end, void *end) |
{ |
MemoryHeap::InitFreeSpace(_KolibriFreeSpace); |
_KolibriMemBlock = MemoryHeap::CreateBlock(begin, end, _KolibriFreeSpace); |
unsigned int use_beg = (unsigned int)MemoryHeap::BlockBegin(_KolibriMemBlock) + |
MemoryHeap::BlockAddSize - MemoryHeap::BlockEndSize; |
unsigned int use_size = (unsigned int)use_end; |
if (use_size <= use_beg) return 0; |
else use_size -= use_beg; |
return MemoryHeap::Alloc(_KolibriFreeSpace, use_size); |
return MemoryHeap::mem_Init(); |
} |
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bool _SetUseMemory(unsigned int use_mem); |
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int _RecalculateUseMemory(unsigned int use_mem); |
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void *Alloc(unsigned int size) |
{ |
if (!size) return 0; |
Lock(&_MemHeapMutex); |
void *res = MemoryHeap::Alloc(_KolibriFreeSpace, size); |
if (!res) |
{ |
unsigned use_mem = (unsigned int)MemoryHeap::BlockEndFor(_KolibriMemBlock, size); |
if (_SetUseMemory(_RecalculateUseMemory(use_mem))) |
{ |
res = MemoryHeap::Alloc(_KolibriFreeSpace, size); |
return MemoryHeap::mem_Alloc(size); |
} |
} |
UnLock(&_MemHeapMutex); |
return res; |
} |
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void *ReAlloc(void *mem, unsigned int size) |
{ |
Lock(&_MemHeapMutex); |
void *res = MemoryHeap::ReAlloc(_KolibriFreeSpace, mem, size); |
if (!res && size) |
{ |
unsigned use_mem = (unsigned int)MemoryHeap::BlockEndFor(_KolibriMemBlock, size); |
if (_SetUseMemory(_RecalculateUseMemory(use_mem))) |
{ |
res = MemoryHeap::ReAlloc(_KolibriFreeSpace, mem, size); |
return MemoryHeap::mem_ReAlloc(size, mem); |
} |
} |
UnLock(&_MemHeapMutex); |
return res; |
} |
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void Free(void *mem) |
{ |
Lock(&_MemHeapMutex); |
MemoryHeap::Free(_KolibriFreeSpace, mem); |
UnLock(&_MemHeapMutex); |
MemoryHeap::mem_Free(mem); |
} |
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void _FreeAndThreadFinish(void *mem, int *exit_proc_now); |
} |
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#endif // def __KOLIBRI__ |
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#endif // ndef __KOLIBRI_HEAP_H_INCLUDED_ |