just::thread Complete C++ Standard Thread Library by Just Software Solutions

Wake one of the threads waiting on *this at the point of the call. If there are no threads waiting, the call has no effect.

std::system_error if the effects cannot be achieved.

Calls to notify_one(), notify_all(), wait(), wait_for() and wait_until() on a single std::condition_variable_any instance are serialized. A call to notify_one() or notify_all() will only wake threads that started waiting prior to that call.