From 8bec6205ae1631dc0896fe25795b2946ed414df0 Mon Sep 17 00:00:00 2001 From: steven-na Date: Tue, 28 Jul 2026 02:12:54 -0700 Subject: Arenas and start work on strings --- src/smrt_arena.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/smrt_arena.h (limited to 'src/smrt_arena.h') diff --git a/src/smrt_arena.h b/src/smrt_arena.h new file mode 100644 index 0000000..4e6f592 --- /dev/null +++ b/src/smrt_arena.h @@ -0,0 +1,35 @@ +#pragma once + +#include "common.h" + +#define SMRT_ARENA_BASE_POS (sizeof(smrt_arena_t)) + +typedef struct { + u64 reserve_size; + u64 commit_size; + + u64 mark_pos; + + u64 pos; + u64 commit_pos; + + b32 auto_decommit; +} smrt_arena_t; + +smrt_arena_t *smrt_arena_create(u64 reserve_size, u64 commit_size, b32 auto_decommit); + void *smrt_arena_push(smrt_arena_t *arena, u64 alloc_amount, b32 zero_out); + void *smrt_arena_mark_push(smrt_arena_t *arena, u64 alloc_amount, b32 zero_out); + void smrt_arena_pop(smrt_arena_t *arena, u64 pop_amount); + void smrt_arena_pop_to(smrt_arena_t *arena, u64 location); + b32 smrt_arena_pop_to_mark(smrt_arena_t *arena); + void smrt_arena_clear(smrt_arena_t *arena, b32 zero_out); + void smrt_arena_destroy(smrt_arena_t *arena); + +#define SMRTA_ALLOC_ARRAY(arena, T, n) (T*)smrt_arena_push(arena, sizeof(T) * (n), true) + +u32 plat_get_pagesize(void); + +void *plat_mem_reserve(u64 size); + b32 plat_mem_commit(void *ptr, u64 size); + b32 plat_mem_decommit(void *ptr, u64 size); + b32 plat_mem_release(void *ptr, u64 size); -- cgit v1.2.3