LaEntropiaa
cde457593e
Added arena_alloc and decided to change the arena pointer type from void * to uint8_t * because i need to support 1 byte pointer arithmetic, thought of using uintptr_t but not sure, the support seems really weird from what i read online so i'm sticking with good old uint8_t * (wich i know works).
49 lines
902 B
C
49 lines
902 B
C
#ifndef ARENA_H
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#define ARENA_H
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#include <stdint.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <stdbool.h>
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typedef struct {
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uint8_t *data;
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size_t size;
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size_t offset;
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} Arena;
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typedef enum {
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ARENA_OK,
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ARENA_BAD_ALLOC,
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ARENA_OUT_OF_SPACE,
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ARENA_NULL_ARG,
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ARENA_INVALID_SIZE,
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} ArenaErr;
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typedef struct {
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bool is_valid;
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union {
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ArenaErr err;
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uint8_t *pointer;
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};
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} ArenaPointer;
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typedef struct {
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bool is_valid;
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union {
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ArenaErr err;
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Arena arena;
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};
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} ArenaResult;
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ArenaResult arena_init(size_t size);
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void arena_destroy(Arena *arena);
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ArenaPointer arena_alloc(Arena *arena, size_t size, size_t alignment);
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ArenaErr arena_push(Arena *arena, void *data, size_t size);
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ArenaErr arena_realloc(Arena *arena, size_t new_size);
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size_t align_arena_offset(Arena *arena, size_t alignment);
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#endif // !ARENA_H
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