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https://github.com/ToyB-Chan/minimal-heap.git
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52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
#define USE_HEAP_STRUCTURE_CHECKSUM 1
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#define USE_CANARY_VALIDATION 1
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#define HEAP_CORRUPTION_TYPE_MEMORY_AREA_CHECKSUM_MISMATCH 0
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#define HEAP_CORRUPTION_TYPE_ALLOCATION_CHECKSUM_MISMATCH 1
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#define HEAP_CORRUPTION_TYPE_FRONT_CANARY_MISMATCH 2
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#define HEAP_CORRUPTION_TYPE_REAR_CANARY_MISMATCH 3
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struct heap_memory_area
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{
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unsigned long long size;
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unsigned long long num_occupied_allocations;
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heap_memory_area* next_area;
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heap_memory_area* previous_area;
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#if USE_HEAP_STRUCTURE_CHECKSUM
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unsigned long long checksum;
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#endif
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} typedef heap_memory_area;
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struct heap_allocation
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{
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unsigned long long size;
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bool is_occupied;
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heap_allocation* next_allocation;
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heap_allocation* previous_allocation;
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heap_memory_area* encapsulating_memory_area;
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#if USE_HEAP_STRUCTURE_CHECKSUM
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unsigned long long checksum;
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#endif
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} typedef heap_allocation;
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struct heap_corruption_info
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{
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char type;
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void* ptr;
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unsigned long long expected_value;
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unsigned long long actual_value;
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} typedef heap_corruption_info;
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/* Hooks to be implemented by the library user */
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void* platform_request_memory_area(unsigned long long size);
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bool platform_free_memory_area(void* ptr, unsigned long long size);
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char platform_get_required_memory_alingment();
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void platform_heap_corruption_detected(heap_corruption_info info);
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unsigned long long config_minimal_memory_area_size();
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unsigned long long config_minimum_amount_unoccupied_bytes();
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unsigned long long config_minimum_amount_unoccupied_continues_bytes();
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/* === */ |