6 stable releases

1.0.5 Mar 28, 2024
1.0.4 Nov 7, 2021
1.0.3 Nov 4, 2021

#95 in Memory management

Download history 224/week @ 2023-12-23 112/week @ 2023-12-30 126/week @ 2024-01-06 184/week @ 2024-01-13 151/week @ 2024-01-20 255/week @ 2024-01-27 358/week @ 2024-02-03 211/week @ 2024-02-10 204/week @ 2024-02-17 292/week @ 2024-02-24 247/week @ 2024-03-02 243/week @ 2024-03-09 286/week @ 2024-03-16 377/week @ 2024-03-23 275/week @ 2024-03-30 188/week @ 2024-04-06

1,168 downloads per month
Used in 7 crates (via lib-ruby-parser)

MIT license

9KB
245 lines

alloc-from-pool

This crate implements object pool.

Basic usage

use alloc_from_pool::Pool;

// dummy struct
struct Foo([u8; 50]);

// pool has size = 0 by default
let pool = Pool::<Foo>::new();

// performs allocation
let foo1 = pool.alloc(Foo([1; 50]));
// returns memory back to pool
drop(foo1);

// re-uses the value that we've just returned back to pool
let foo2 = pool.alloc(Foo([2; 50]));
// returns memory back to pool
drop(foo2);

// it also possible to create a Factory based on a pool
// that holds a reference to initial Pool
let factory = pool.factory();
// Factory has the same `alloc` method:
let foo3 = factory.alloc(Foo([3; 50]));
// it uses the same pool, and also returns back to the same pool
drop(foo3);

Benchmarks

You can run cargo bench:

test alloc_with_box  ... bench:          56 ns/iter (+/- 6)
test alloc_with_pool ... bench:           7 ns/iter (+/- 0)

No runtime deps