simple/
simple.rs

1use dynamic_pool::{DynamicPool, DynamicReset};
2
3#[derive(Default)]
4struct Person {
5    name: String,
6    age: u16,
7}
8
9impl DynamicReset for Person {
10    fn reset(&mut self) {
11        self.name.clear();
12        self.age = 0;
13    }
14}
15
16fn main() {
17    // Creates a new pool that will hold at most 10 items, starting with 1 item by default.
18    let pool = DynamicPool::new(1, 10, Person::default);
19    // Assert we have one item in the pool.
20    assert_eq!(pool.available(), 1);
21
22    // Take an item from the pool.
23    let mut person = pool.take();
24    person.name = "jake".into();
25    person.age = 99;
26
27    // Assert the pool is empty since we took the person above.
28    assert_eq!(pool.available(), 0);
29    // Dropping returns the item to the pool.
30    drop(person);
31    // We now have stuff available in the pool to take.
32    assert_eq!(pool.available(), 1);
33
34    // Take person from the pool again, it should be reset.
35    let person = pool.take();
36    assert_eq!(person.name, "");
37    assert_eq!(person.age, 0);
38
39    // Nothing is in the queue.
40    assert_eq!(pool.available(), 0);
41    // try_take returns an Option. Since the pool is empty, nothing will be created.
42    assert!(pool.try_take().is_none());
43    // Dropping again returns the person to the pool.
44    drop(person);
45    // We have stuff in the pool now!
46    assert_eq!(pool.available(), 1);
47
48    // try_take would succeed here!
49    let person = pool.try_take().unwrap();
50
51    // We can also then detach the `person` from the pool, meaning it won't get
52    // recycled.
53    let person = person.detach();
54    // We can then drop that person, and see that it's not returned to the pool.
55    drop(person);
56    assert_eq!(pool.available(), 0);
57}
simple/simple.rs

simple/
simple.rs
