Crate lazy_init [−] [src]
A crate for things that are 1) Lazily initialized 2) Expensive to create 3) Immutable after creation 4) 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).
Structs
Lazy |
|
LazyTransform |
|