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Implemented macros for iterating over memblock regions, including free regions

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max 🍓
2022-12-28 23:03:30 +00:00
parent 5a2b81c8b9
commit d0091a4df7
3 changed files with 93 additions and 6 deletions
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17
sandbox/memblock/memblock.h
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@@ -2,12 +2,25 @@
#define MEMBLOCK_H_
#include <stddef.h>
#include <limits.h>
#include <stdint.h>
#define MEMBLOCK_INIT_MEMORY_REGION_COUNT 128
#define MEMBLOCK_INIT_RESERVED_REGION_COUNT 128
#define __for_each_mem_range(i, type_a, type_b, p_start, p_end) \
for ((i)->idx = 0, __next_memory_region(i, type_a, type_b, p_start, p_end); \
(i)->idx != ULLONG_MAX; \
__next_memory_region(i, type_a, type_b, p_start, p_end))
#define for_each_mem_range(i, p_start, p_end) \
__for_each_mem_range(i, &memblock.memory, NULL, p_start, p_end)
#define for_each_reserved_mem_range(i, p_start, p_end) \
__for_each_mem_range(i, &memblock.reserved, NULL, p_start, p_end)
#define for_each_free_mem_range(i, p_start, p_end) \
__for_each_mem_range(i, &memblock.memory, &memblock.reserved, p_start, p_end)
typedef uint64_t memblock_index_t;
@@ -45,4 +58,8 @@ extern int memblock_reserve(uintptr_t base, size_t size);
extern uintptr_t memblock_alloc(size_t size);
extern void __next_memory_region(memblock_iter_t *it, \
memblock_type_t *type_a, memblock_type_t *type_b,
uintptr_t start, uintptr_t end);
#endif