toybchan/minimal-heap
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toybchan
2026-06-08 04:30:08 +02:00
parent 16a390797c
commit e7d304ba35
2 changed files with 116 additions and 19 deletions
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14
minimal_heap.h
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@@ -15,6 +15,14 @@
#define MIHP_HEAP_CORRUPTION_TYPE_FRONT_CANARY_MISMATCH 2
#define MIHP_HEAP_CORRUPTION_TYPE_REAR_CANARY_MISMATCH 3
typedef struct _MIHP_HeapConfig
{
size_t AllocationAlignment;
size_t MinimalMemoryAreaSize;
size_t MaximalMemoryAreaSize;
} MIHP_HeapConfig;
typedef struct _MIHP_HeapStats
{
size_t NumMemoryAreas;
@@ -73,7 +81,7 @@ void MIHP_PlatformOnHeapCorruptionDetected(MIHP_HeapCorruptionInfo info);
/* Defines to be configured by the library user */
#define MIHP_MINIMAL_MEMORY_AREA_SIZE (4096 * 32)
#define MIHP_ASSERT(Condition) do { if (Condition) break; *(volatile char*)(0x0) = 0; } while(1)
#define MIHP_ASSERT(Condition) while(1) { if (Condition) break; *(volatile char*)(0x0) = 0; }
#define MIHP_HEAP_LOCK_TYPE uint8_t
#define MIHP_LOCK_HEAP(LockVariablePtr) {}
@@ -82,15 +90,15 @@ void MIHP_PlatformOnHeapCorruptionDetected(MIHP_HeapCorruptionInfo info);
typedef struct _MIHP_HeapInfo
{
MIHP_HeapConfig Config;
MIHP_HeapStats Stats;
size_t AllocationAlignment;
MIHP_HeapMemoryAreaHeader* FirstArea;
MIHP_HEAP_LOCK_TYPE HeapLock;
} MIHP_HeapInfo;
/* API Interface */
MIHP_HeapInfo* MIHP_CreateHeap(size_t initialSize, size_t allocationAlignment);
MIHP_HeapInfo* MIHP_CreateHeap(MIHP_HeapConfig config);
bool MIHP_DestroyHeap(MIHP_HeapInfo* heap, bool force);
void* MIHP_Allocate(MIHP_HeapInfo* heap, size_t size);
void* MIHP_Realloc(MIHP_HeapInfo* heap, void* ptr, size_t newSize);