MFInitStatus MFHeap_InitModule()
{
MFCALLSTACK;
MFDebug_Assert(MFThread_GetMutexSizePlatformSpecific() <= sizeof(gMutexBuffer), "Mutex buffer too small!");
MFThread_InitMutexPlatformSpecific((MFMutex)gMutexBuffer, "MFHeap alloc mutex");
gAllocMutex = (MFMutex)gMutexBuffer;
// any heap tracking allocations should be made in the debug space
MFHeap *pOld = MFHeap_SetActiveHeap(MFHeap_GetDebugHeap());
#if defined(_USE_TRACKING_HASH_TABLE)
// set up the memory tracking hash table
// note: this is slightly complicated due to the chicken and egg nature
// of making the first allocation for the pool its self ;)
static const int numAllocHeaders = 1024;
// uint32 bytes = (sizeof(MFHeap_AllocItem) + sizeof(void**)) * numAllocHeaders;
// void *pPoolMemory = MFHeap_Alloc(bytes);
// gAllocHeaderPool.Init(sizeof(MFHeap_AllocItem), numAllocHeaders, 1024, pPoolMemory, bytes);
gAllocHeaderPool.Init(sizeof(MFHeap_AllocItem), numAllocHeaders, 1024);
MFZeroMemory(gpAllocTable, sizeof(gpAllocTable));
// artificially add an entry for the pool its self...
MFHeap_AllocItem *pHeader = (MFHeap_AllocItem*)gAllocHeaderPool.Alloc();
pHeader->header.pHeap = &gExternalHeap;
pHeader->header.size = bytes;
pHeader->header.pFile = __FILE__;
pHeader->header.line = (uint16)__LINE__;
pHeader->header.alignment = 4;
pHeader->pMemory = pPoolMemory;
pHeader->pNext = NULL;
gpAllocTable[MFUtil_HashPointer(pPoolMemory) % MFHeap_AllocTableLength] = pHeader;
#endif
#if defined(_USE_ALLOC_TRACKER)
gAllocList.Init(sizeof(void*), 1024, 1024);
gPoolInitialised = true;
#endif
// restore the active heap
MFHeap_SetActiveHeap(pOld);
// init the heap
MFHeap_InitModulePlatformSpecific();
return MFAIC_Succeeded;
}
MFInitStatus MFHeap_InitModule()
{
MFCALLSTACK;
MFDebug_Assert(MFThread_GetMutexSizePlatformSpecific() <= sizeof(gMutexBuffer), "Mutex buffer too small!");
MFThread_InitMutexPlatformSpecific((MFMutex)gMutexBuffer, "MFHeap alloc mutex");
gAllocMutex = (MFMutex)gMutexBuffer;
// any heap tracking allocations should be made in the debug space
MFHeap *pOld = MFHeap_SetActiveHeap(MFHeap_GetDebugHeap());
#if defined(_USE_TRACKING_HASH_TABLE)
AllocateAllocTable();
#endif
// restore the active heap
MFHeap_SetActiveHeap(pOld);
// init the heap
MFHeap_InitModulePlatformSpecific();
return MFAIC_Succeeded;
}
