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git-svn-id: https://svn.tlawal.org/svn/ragar@6 618e81bd-0769-42e7-8608-769e73fecc77

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This commit is contained in:
Tijani Lawal 2024-08-02 18:04:49 +00:00
parent b658880db8
commit ec02ae32f6
1 changed files with 0 additions and 71 deletions
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src/base/base_arena.h
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@ -1,71 +0,0 @@
#ifndef BASE_ARENA_H
#define BASE_ARENA_H
#define ARENA_HEADER_SIZE 128
#ifndef ARENA_RESERVE_SIZE
#define ARENA_RESERVE_SIZE MB(64)
#endif
#ifndef ARENA_COMMIT_SIZE
#define ARENA_COMMIT_SIZE KB(64)
#endif
#ifndef ARENA_RESERVE_SIZE_LARGE_PAGES
#define ARENA_RESERVE_SIZE_LARGE_PAGES MB(8)
#endif
#ifndef ARENA_COMMIT_SIZE_LARGE_PAGES
#define ARENA_COMMIT_SIZE_LARGE_PAGES MB(2)
#endif
// Arena
typedef struct Arena Arena;
struct Arena {
struct Arena *previous;
struct Arena *current;
u64 base_position;
u64 position;
u64 commit;
u64 reserve;
u64 align;
b8 grow;
b8 large_pages;
};
typedef struct Temp Temp;
struct Temp {
Arena *arena;
u64 position;
};
// Implementation
internal Arena *arena_alloc__sized(u64 int_res, u64 init_cmt); // cmt? res?
internal Arena *arena_alloc(void);
internal void arena_release(Arena *arena);
internal void *arena_push__impl(Arena *arena, u64 size);
internal u64 arena_position(Arena *arena);
internal void arena_pop_to(Arena *arena, u64 position);
internal void arena_absorb(Arena *arena, Arena *sub);
// Wrapper functions
internal void *arena_push(Arena *arena, u64 size);
internal void *arena_push_contiguous(Arena *arena, u64 size);
internal void arena_clear(Arena *arena);
internal void arena_push_align(Arena *arena, u64 align);
internal void arena_put_back(Arena *arena, u64 amount);
internal Temp temp_begin(Arena *arena);
internal void temp_end(Temp temp);
internal b32 ensure_commit(void **commit, void *position, u64 commit_block_size);
// Main API Macros
#define push_array_no_zero(arena, Type, commit) (Type *)arena_push((arena), sizeof(Type) * (commit))
#define push_array(arena, Type, commit) \
(Type *)MemoryZero(push_array_no_zero(arena, Type, commit), sizeof(Type) * (commit))
#endif // BASE_ARENA_H