7 releases (4 breaking)
Uses old Rust 2015
| 0.5.1 | Aug 1, 2022 |
|---|---|
| 0.5.0 | Jan 18, 2021 |
| 0.4.0 | Aug 22, 2020 |
| 0.3.0 | Jan 18, 2018 |
| 0.1.1 | Jan 28, 2017 |
#1157 in Rust patterns
6,589 downloads per month
Used in 18 crates
(8 directly)
14KB
227 lines
A crate for things that are
- Lazily initialized
- Expensive to create
- Immutable after creation
- Used on multiple threads
Lazy<T> is better than Mutex<Option<T>> because after creation accessing
T does not require any locking, just a single boolean load with
Ordering::Acquire (which on x86 is just a compiler barrier, not an actual
memory barrier).