Wake one of the threads currently waiting on a std::condition_variable.
void notify_one();
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 instance
are serialized. A call to notify_one()
or notify_all()
will only wake threads that started waiting prior
to that call.
#include <condition_variable>