std::shared_future::wait_for
std::shared_future::wait_for
template< class Rep, class Period > std::future_status wait_for( const std::chrono::duration<Rep,Period>& timeout_duration ) const; | (since C++11) |
Waits for the result to become available. Blocks until specified timeout_duration has elapsed or the result becomes available, whichever comes first. Returns value identifies the state of the result.
A steady clock is used to measure the duration. This function may block for longer than timeout_duration due to scheduling or resource contention delays.
The behavior is undefined if valid()== f