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The
requirements describe the characteristics of types that provide timed exclusive blocking semantics for execution agents (threads, processes, tasks).
Requirements
For type L to be TimedLockable, given
rel_time, a value of a specialization of
, and
abs_time, a value of a specialization of
,
the following conditions have to be satisfied for an object m of type L:
ExpressionEffectsReturn value m.try_lock_for(rel_time)Blocks for the provided duration rel_time or until a lock on m is acquired. true if the lock was acquired, false otherwise. m.try_lock_until(abs_time)Blocks until the provided time point abs_time is reached or a lock on m is acquired. true if the lock was acquired, false otherwise. Notes
The try_lock_for and try_lock_until member functions obtain a non-shared lock on m on success.
Standard library
The following standard library types satisfy TimedLockable:
(C++11)
provides mutual exclusion facility which implements locking with a timeout
(class)
(C++11)
provides mutual exclusion facility which can be locked recursively
by the same thread and implements locking with a timeout
(class)
(C++14)
provides shared mutual exclusion facility and implements locking with a timeout
(class)
See also