Function jack_sys::jack_get_cycle_times

pub unsafe fn jack_get_cycle_times(
    _client: *const jack_client_t,
    _current_frames: *mut jack_nframes_t,
    _current_usecs: *mut jack_time_t,
    _next_usecs: *mut jack_time_t,
    _period_usecs: *mut c_float
) -> Option<c_int>