Rust type for a RAII Counter (counts number of held instances,
decrements count on Drop), implemented with Arc<AtomicUsize>.
Useful for tracking the number of holders exist for a handle, tracking the number of transactions that are in-flight, etc.
- Counters can have a size, eg. a Counter with
size4 adds 4 to the count, and removes 4 when dropped.
extern crate raii_counter;
use raii_counter::Counter;
let counter = Counter::new();
assert_eq!(counter.count(), 1);
let weak = counter.downgrade();
assert_eq!(weak.count(), 0);
{
let _counter1 = weak.spawn_upgrade();
assert_eq!(weak.count(), 1);
let _counter2 = weak.spawn_upgrade();
assert_eq!(weak.count(), 2);
}
assert_eq!(weak.count(), 0);License: MIT
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent