std::shared_timed_mutex::try_lock_shared_for(3)

NAME
std::shared_timed_mutex::try_lock_shared_for - std::shared_timed_mutex::try_lock_shared_for

Synopsis
   template< class Rep, class Period >
   bool try_lock_shared_for( const std::chrono::duration<Rep,Period>& (since C++14)
   timeout_duration );
   Tries to lock the mutex in shared mode. Blocks until specified timeout_duration has
   elapsed or the shared lock is acquired, whichever comes first. On successful lock
   acquisition returns true, otherwise returns false.
   If timeout_duration is less or equal timeout_duration.zero(), the function behaves
   like try_lock_shared().
   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.
   As with try_lock_shared(), this function is allowed to fail spuriously and return
   false even if the mutex was not locked by any other thread at some point during
   timeout_duration.
   Prior unlock() operation on the same mutex synchronizes-with (as defined in
   std::memory_order) this operation if it returns true.
   If try_lock_shared_for is called by a thread that already owns the mutex in any mode
   (shared or exclusive), the behavior is undefined.

Parameters
   timeout_duration - maximum duration to block for

Return value
   true if the lock was acquired successfully, otherwise false.

Exceptions
   Any exception thrown by clock, time_point, or duration during the execution (clocks,
   time points, and durations provided by the standard library never throw).

Example
    This section is incomplete
    Reason: no example

See also
                        tries to lock the mutex for shared ownership, returns if the
   try_lock_shared mutex is not available
                        (public member function)
                        tries to lock the mutex for shared ownership, returns if the
   try_lock_shared_until mutex has been
                        unavailable until specified time point has been reached
                        (public member function)
                        tries to lock the mutex, returns if the mutex has been
   try_lock_for unavailable for the specified timeout duration
                        (public member function)

Category:
     * Todo no example