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