63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
#ifndef INCLUDED_C_ARENA_H
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#define INCLUDED_C_ARENA_H
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#ifndef INCLUDED_C_BASE_H
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#include <c_Base.h>
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#endif /*INCLUDED_C_BASE_H*/
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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typedef struct {
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uint8_t* buf;
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c_size_t buf_len;
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c_size_t prev_offset;
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c_size_t curr_offset;
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}c_Arena_t;
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typedef struct {
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c_Arena_t* arena;
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c_size_t prev_offset;
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c_size_t curr_offset;
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}c_ArenaTemp_t;
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void c_Arena_Init(c_Arena_t* a, void* buf, c_size_t buf_len);
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void *c_Arena_Alloc(c_Arena_t *a, c_size_t size);
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void *c_Arena_Resize(c_Arena_t *a, void *old_memory, c_size_t old_size, c_size_t new_size);
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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C_STATIC_FORCE_INLINE
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void c_Arena_Destroy(c_Arena_t* a) {
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a->curr_offset = a->prev_offset = 0;
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}
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C_STATIC_FORCE_INLINE
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void c_Arena_Free(c_Arena_t *a, void *ptr) {
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C_UNUSED(a);
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C_UNUSED(ptr);
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}
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/* ------------------------------------------------------------------------------------------------------------------ */
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/* */
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C_STATIC_FORCE_INLINE
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c_ArenaTemp_t c_ArenaTemp_Begin(c_Arena_t *a) {
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c_ArenaTemp_t temp;
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temp.arena = a;
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temp.prev_offset = a->prev_offset;
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temp.curr_offset = a->prev_offset;
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return temp;
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}
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C_STATIC_FORCE_INLINE
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void c_ArenaTemp_End(c_ArenaTemp_t *a) {
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a->arena->curr_offset = a->curr_offset;
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a->arena->prev_offset = a->prev_offset;
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}
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#endif /*INCLUDED_C_ARENA_H*/
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