Function core::sync::atomic::fence
[−]
[src]
pub fn fence(order: Ordering)
An atomic fence.
A fence 'A' which has Release ordering semantics, synchronizes with a
fence 'B' with (at least) Acquire semantics, if and only if there exists
atomic operations X and Y, both operating on some atomic object 'M' such
that A is sequenced before X, Y is synchronized before B and Y observes
the change to M. This provides a happens-before dependence between A and B.
Atomic operations with Release or Acquire semantics can also synchronize
with a fence.
A fence which has SeqCst ordering, in addition to having both Acquire
and Release semantics, participates in the global program order of the
other SeqCst operations and/or fences.
Accepts Acquire, Release, AcqRel and SeqCst orderings.
Panics
Panics if order is Relaxed.