You can use this function on a pending or a non-pending event to make it
active, so that its callback will be run by event_base_dispatch() or
event_base_loop().
One common use in multithreaded programs is to wake the thread running
event_base_loop() from another thread.
@param ev an event to make active.
@param res a set of flags to pass to the event's callback.
@param ncalls an obsolete argument: this is ignored.
Make an event active.
You can use this function on a pending or a non-pending event to make it active, so that its callback will be run by event_base_dispatch() or event_base_loop().
One common use in multithreaded programs is to wake the thread running event_base_loop() from another thread.
@param ev an event to make active. @param res a set of flags to pass to the event's callback. @param ncalls an obsolete argument: this is ignored.