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GetPtrSize; Heap stats

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This commit is contained in:
Iliyas Jorio 2023-01-21 14:16:12 +01:00
parent dae4b61b5b
commit 80349be4c0
2 changed files with 38 additions and 8 deletions
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33
src/Memory/Memory.cpp
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@ -19,6 +19,9 @@ static std::set<uint32_t> gLivePtrNums;
static constexpr int kBlockDescriptorPadding = 32;
static_assert(sizeof(BlockDescriptor) <= kBlockDescriptorPadding);
static size_t gTotalHeapSize = 0;
static size_t gNumBlocksAllocated = 0;
//-----------------------------------------------------------------------------
// Implementation-specific stuff
@ -33,6 +36,9 @@ BlockDescriptor* BlockDescriptor::Allocate(uint32_t size)
block->ptrToData = buf + kBlockDescriptorPadding;
block->rezMeta = nullptr;
gTotalHeapSize += kBlockDescriptorPadding + size;
gNumBlocksAllocated++;
#if POMME_PTR_TRACKING
block->ptrBatch = gCurrentPtrBatch;
block->ptrNumInBatch = gCurrentNumPtrsInBatch++;
@ -47,6 +53,9 @@ void BlockDescriptor::Free(BlockDescriptor* block)
if (!block)
return;
gTotalHeapSize -= kBlockDescriptorPadding + block->size;
gNumBlocksAllocated--;
block->magic = 'DEAD';
block->size = 0;
block->ptrToData = nullptr;
@ -172,12 +181,8 @@ Ptr NewPtr(Size byteCount)
if (byteCount > 0x7FFFFFFF)
throw std::invalid_argument("trying to alloc massive ptr");
#if !POMME_PTR_TRACKING
return new char[byteCount];
#else
BlockDescriptor* bd = BlockDescriptor::Allocate((UInt32) byteCount);
return bd->ptrToData;
#endif
}
Ptr NewPtrSys(Size byteCount)
@ -192,18 +197,30 @@ Ptr NewPtrClear(Size byteCount)
return ptr;
}
Size GetPtrSize(Ptr p)
{
const BlockDescriptor* block = BlockDescriptor::PtrToBlock(p);
return block->size;
}
void DisposePtr(Ptr p)
{
#if !POMME_PTR_TRACKING
delete[] p;
#else
BlockDescriptor::Free(BlockDescriptor::PtrToBlock(p));
#endif
}
//-----------------------------------------------------------------------------
// Memory: pointer tracking
long Pomme_GetNumAllocs()
{
return (long) gNumBlocksAllocated;
}
Size Pomme_GetHeapSize()
{
return (Size) gTotalHeapSize;
}
void Pomme_FlushPtrTracking(bool issueWarnings)
{
#if POMME_PTR_TRACKING

13
src/Pomme.h
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@ -430,8 +430,21 @@ Ptr NewPtrSys(Size);
Ptr NewPtrClear(Size);
Size GetPtrSize(Ptr p);
void DisposePtr(Ptr p);
//-----------------------------------------------------------------------------
// Memory: heap statistics
// Pomme extension:
// Returns amount of Ptrs and Handles currently live
long Pomme_GetNumAllocs(void);
// Pomme extension:
// Returns lower bound of total heap allocated by application
Size Pomme_GetHeapSize(void);
//-----------------------------------------------------------------------------
// Memory: pointer tracking