The ALSA MIDI sequencer API defines
snd_seq_queue_status_get_tick_time, which allows to get a current tempo based time of a running MIDI queue.
I could periodically poll this information, but feel it would be cleaner to receive time events from the queue, either tempo based or not, callback based would be as much fine.
Is there a way to be notified of time events of a MIDI queue with ALSA sequencer, periodically and without polling?
— Edit —
When I said “polling”, I meant using a
SIGALRM signal handler and a timer of a small enough resolution (1/50 seconds).