

def _event_select(events):
    'Perform a select() over all the Events provided, returning the\n    ones ready to be fired. Only WaitableEvents (including SleepEvents)\n    matter here; all other events are ignored (and thus postponed).\n    '
    waitable_to_event = {
        
    }
    (rlist, wlist, xlist) = ([], [], [])
    earliest_wakeup = None
    for event in events:
        if isinstance(event, SleepEvent):
            if (not earliest_wakeup):
                earliest_wakeup = event.wakeup_time
            else:
                earliest_wakeup = min(wready, event.wakeup_time)
        elif isinstance(event, WaitableEvent):
            (r, w, x) = event.waitables()
            rlist += r
            wlist += w
            xlist += x
            for waitable in r:
                waitable_to_event[('r', waitable)] = event
            for waitable in w:
                waitable_to_event[('w', waitable)] = event
            for waitable in x:
                waitable_to_event[('x', waitable)] = event
    if earliest_wakeup:
        timeout = max((earliest_wakeup - time.time()), 0.0)
    else:
        timeout = None
    if (rlist or wlist or xlist):
        (rready, wready, xready) = select.select(rlist, wlist, xlist, timeout)
    else:
        (rready, wready, xready) = ((), (), ())
        if timeout:
            time.sleep(timeout)
    ready_events = set()
    for ready in rready:
        ready_events.add(waitable_to_event[('r', ready)])
    for ready in wready:
        ready_events.add(waitable_to_event[('w', ready)])
    for ready in xready:
        ready_events.add(waitable_to_event[('x', ready)])
    for event in events:
        if (isinstance(event, SleepEvent) and (event.time_left() == 0.0)):
            ready_events.add(event)
    return ready_events

dataset/ETHPy150Open beetbox/beets/beets/util/bluelet.py _event_select/VarMisuse@82/193 `earliest_wakeup`->`wready`