Expand description
Type definitions for putting shared ownership and synchronized mutation behind the threading feature toggle.
That way, single-threaded applications will not have to use thread-safe primitives, and simply do not specify the ‘threading’ feature.
Functions§
- downgrade_
mut_ to_ ref - Downgrade a handle previously obtained with
get_mut()to drop mutation support. - get_mut
- Get a mutable reference through a
MutableOnDemandfor read-write access. - get_ref
- Get a shared reference through a
MutableOnDemandfor read-only access. - lock
- Get a mutable reference through a
Mutablefor read-write access. - make_
mut - Get a mutable reference to the underlying data, with semantics similar to Arc::make_mut().
- map_ref
- Map a read guard into a sub-type it contains.
Type Aliases§
- Mapped
RefGuard - A mapped reference created from a
RefGuard - Mutable
- A synchronization primitive which provides read-write access right away.
- Mutable
OnDemand - A synchronization primitive which can start read-only and transition to support mutation.
- Once
Cell once_cell - A thread-safe cell which can be written to only once.
- OwnShared
- A reference counted pointer type for shared ownership.
- RefGuard
- A guarded reference suitable for safekeeping in a struct.