Region-based memory allocator - fast batch allocation, single free
U std/arena
S Arena {
chunks: i64, # Chunk pointer list
chunk_count: i64,
chunk_size: i64, # Size per chunk (default 64KB)
current: i64, # Current chunk
offset: i64 # Offset in current chunk
}
| Method | Signature | Description |
|---|
new | F new() -> Arena | Create with 64KB chunks |
with_chunk_size | F with_chunk_size(size: i64) -> Arena | Custom chunk size |
alloc | F alloc(&self, size: i64) -> i64 | Allocate bytes |
alloc_zeroed | F alloc_zeroed(&self, size: i64) -> i64 | Allocate zero-initialized bytes |
alloc_array | F alloc_array(&self, count: i64, item_size: i64) -> i64 | Allocate array |
grow | F grow(&self) -> i64 | Grow arena by adding new chunk |
total_allocated | F total_allocated(&self) -> i64 | Get total allocated bytes |
total_capacity | F total_capacity(&self) -> i64 | Get total capacity |
reset | F reset(&self) -> i64 | Reset (reuse memory) |
drop | F drop(&self) -> i64 | Free all chunks |
| Function | Signature | Description |
|---|
arena_new | F arena_new() -> Arena | Create arena (convenience) |
arena_alloc | F arena_alloc(arena: Arena, size: i64) -> i64 | Allocate (convenience) |
arena_reset | F arena_reset(arena: Arena) -> i64 | Reset (convenience) |
arena_drop | F arena_drop(arena: Arena) -> i64 | Drop (convenience) |
U std/arena
F main() -> i64 {
a := Arena::new()
ptr1 := a.alloc(64) # Fast allocation
ptr2 := a.alloc(128)
a.drop() # Frees everything at once
0
}