Module threading

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_refparallel
  Downgrade a handle previously obtained with get_mut() to drop mutation support.
• get_mutparallel
  Get a mutable reference through a MutableOnDemand for read-write access.
• get_refparallel
  Get a shared reference through a MutableOnDemand for read-only access.
• lockparallel
  Get a mutable reference through a Mutable for read-write access.
• make_mutparallel
  Get a mutable reference to the underlying data, with semantics similar to Arc::make_mut().
• map_refparallel
  Map a read guard into a sub-type it contains.

Type Aliases

• MappedRefGuardparallel
  A mapped reference created from a RefGuard
• Mutableparallel
  A synchronization primitive which provides read-write access right away.
• MutableOnDemandparallel
  A synchronization primitive which can start read-only and transition to support mutation.
• OnceCellparallel and once_cell
  A thread-safe cell which can be written to only once.
• OwnSharedparallel
  A reference counted pointer type for shared ownership.
• RefGuardparallel
  A guarded reference suitable for safekeeping in a struct.