From 735e27c41863f9f9d40653d6403f26477be22706 Mon Sep 17 00:00:00 2001 From: nasr Date: Sat, 7 Mar 2026 22:58:48 +0000 Subject: refactor(base): split the arena allocator into a zero and non zero one --- source/base/base_arena.c | 8 ++++---- source/base/base_arena.h | 6 ++++-- 2 files changed, 8 insertions(+), 6 deletions(-) (limited to 'source') diff --git a/source/base/base_arena.c b/source/base/base_arena.c index 3e9a6df..5855e5e 100755 --- a/source/base/base_arena.c +++ b/source/base/base_arena.c @@ -33,7 +33,7 @@ arena_destroy(mem_arena *arena) munmap(arena, arena->capacity + sizeof(mem_arena)); } internal void * -arena_alloc(mem_arena *arena, u64 size) +arena_alloc(mem_arena *arena, u64 size, b32 zero) { if (!arena) { @@ -51,7 +51,7 @@ arena_alloc(mem_arena *arena, u64 size) arena->previous_position = arena->current_position; arena->current_position = aligned + size; - MemSet(out, size); + if (zero) MemSet(out, size); return out; } @@ -88,7 +88,7 @@ arena_resize_align(mem_arena *arena, void *old_memory, u64 new_size, u64 old_siz if (old_memory == NULL || old_size == 0) { - return (mem_arena *)arena_alloc(arena, new_size); + return (mem_arena *)arena_alloc(arena, new_size, 0); } else if ((old_mem >= arena->base_position && old_mem < arena->base_position + arena->capacity)) { @@ -103,7 +103,7 @@ arena_resize_align(mem_arena *arena, void *old_memory, u64 new_size, u64 old_siz } else { - void *new_memory = arena_alloc(arena, new_size); + void *new_memory = arena_alloc(arena, new_size, 0); umm copy_size = old_size < new_size ? old_size : new_size; memmove(new_memory, old_mem, copy_size); } diff --git a/source/base/base_arena.h b/source/base/base_arena.h index fe71c24..2818ae4 100755 --- a/source/base/base_arena.h +++ b/source/base/base_arena.h @@ -2,8 +2,10 @@ #define BASE_ARENA_H #define Align(pointer, alignment) align((u64)(pointer), (umm)(alignment)) -#define PushStruct(arena, type) (type *)arena_alloc((arena), sizeof(type)) -#define PushArray(arena, type, len) (type *)arena_alloc((arena), sizeof(type) * (len)) +#define PushStruct(arena, type) (type *)arena_alloc((arena), sizeof(type), 0) +#define PushStructZero(arena, type) (type *)arena_alloc((arena), sizeof(type), 1) +#define PushArray(arena, type, len) (type *)arena_alloc((arena), sizeof(type) * (len), 0) +#define PushArrayZero(arena, type, len) (type *)arena_alloc((arena), sizeof(type) * (len), 1) typedef struct mem_arena mem_arena; struct mem_arena -- cgit v1.3