toybchan/minimal-heap
1
0
Fork 0
mirror of https://github.com/ToyB-Chan/minimal-heap.git synced 2026-07-13 21:51:16 +02:00
Code Issues Packages Projects Releases Wiki Activity

Create minimal_heap.h

Browse Source
This commit is contained in:
toybchan
2024-11-29 14:39:14 +01:00
parent fe0c4941e8
commit ec050206ac
1 changed files with 52 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

52
minimal_heap.h Normal file
View File

@@ -0,0 +1,52 @@
#define USE_HEAP_STRUCTURE_CHECKSUM 1
#define USE_CANARY_VALIDATION 1
#define HEAP_CORRUPTION_TYPE_MEMORY_AREA_CHECKSUM_MISMATCH 0
#define HEAP_CORRUPTION_TYPE_ALLOCATION_CHECKSUM_MISMATCH 1
#define HEAP_CORRUPTION_TYPE_FRONT_CANARY_MISMATCH 2
#define HEAP_CORRUPTION_TYPE_REAR_CANARY_MISMATCH 3
struct heap_memory_area
{
unsigned long long size;
unsigned long long num_occupied_allocations;
heap_memory_area* next_area;
heap_memory_area* previous_area;
#if USE_HEAP_STRUCTURE_CHECKSUM
unsigned long long checksum;
#endif
} typedef heap_memory_area;
struct heap_allocation
{
unsigned long long size;
bool is_occupied;
heap_allocation* next_allocation;
heap_allocation* previous_allocation;
heap_memory_area* encapsulating_memory_area;
#if USE_HEAP_STRUCTURE_CHECKSUM
unsigned long long checksum;
#endif
} typedef heap_allocation;
struct heap_corruption_info
{
char type;
void* ptr;
unsigned long long expected_value;
unsigned long long actual_value;
} typedef heap_corruption_info;
/* Hooks to be implemented by the library user */
void* platform_request_memory_area(unsigned long long size);
bool platform_free_memory_area(void* ptr, unsigned long long size);
char platform_get_required_memory_alingment();
void platform_heap_corruption_detected(heap_corruption_info info);
unsigned long long config_minimal_memory_area_size();
unsigned long long config_minimum_amount_unoccupied_bytes();
unsigned long long config_minimum_amount_unoccupied_continues_bytes();
/* === */