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std::shared...ry_lock_for(3) C++ Standard Libary std::shared...ry_lock_for(3) NAME std::shared_lock::try_lock_for - std::shared_lock::try_lock_for Synopsis template< class Rep, class Period > bool try_lock_for( const std::chrono::duration<Rep,Period>& (since C++14) timeout_duration ); Tries to lock the associated mutex in shared mode. Blocks until specified timeout_duration has elapsed or the lock is acquired, whichever comes first. On successful lock acquisition returns true, otherwise returns false. Effectively calls mutex()->try_lock_shared_for(timeout_duration). This function may block for longer than timeout_duration due to scheduling or resource contention delays. The standard recommends that a steady clock is used to measure the duration. If an implementation uses a system clock instead, the wait time may also be sensitive to clock adjustments. std::system_error is thrown if there is no associated mutex or if the mutex is already locked. The behavior is undefined if Mutex does not meet the SharedTimed- Lockable requirements. Parameters timeout_duration - maximum duration to block for Return value true if the ownership of the mutex has been acquired successfully, false otherwise. Exceptions * Any exceptions thrown by mutex()->try_lock_shared_for(time- out_duration) * If there is no associated mutex, std::system_error with an error code of std::errc::operation_not_permitted * If the mutex is already locked, std::system_error with an error code of std::errc::resource_deadlock_would_occur Example This section is incomplete Reason: no example See also attempts to lock (i.e., takes ownership of) the asso- ciated try_lock_for TimedLockable mutex, returns if the mutex has been unavailable for the specified time duration (public member function of std::unique_lock<Mutex>) lock locks the associated mutex (public member function) try_lock tries to lock the associated mutex (public member function) try_lock_until tries to lock the associated mutex, until a specified time point (public member function) unlock unlocks the associated mutex (public member function) http://cppreference.com 2022.07.31 std::shared...ry_lock_for(3)
NAME | Synopsis | Parameters | Return value | Exceptions | Example | See also
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