arena-allocator/README.md

arena_t arena_new()

Allocate a new arena. The underlying memory is allocated with mmap.

void arena_delete(arena_t *a)

Delete memory mapped for arena. Should only be used with arenas from arena_new().

arena_t arena_attach(void *ptr, size_t size)

Attach an arena to an existing memory region. The arena will not expand the region if space is exceeded.

void *arena_detatch(arena_t arena)

Detach an arena from an existing memory region.

void arena_reset(arena_t *a)

Reset an arena.

void *arena_alloc(arena_t *a, size_t len)

Allocate memory from an arena. Returns NULL and sets errno on failure.

void *arena_calloc(arena_t *a, size_t nmemb, size_t size)

Allocate and zero memory from an arena. Returns NULL and sets errno on failure.