Question

Is there any way to force a Observable.Buffer to flush before the end of buffered time?

In the example:

mSubscription = mFluxObservable.Buffer(new TimeSpan(0, 0, 1, 30)).Subscribe(o => saver(o, iSessionId));

I want to flush the data before the 1:30 period has finished!

Answer 1

This worked for me:

var subject = new Subject<Unit>();
var closing = Observable
    .Timer(new TimeSpan(0, 0, 1, 30))
    .Select(x => Unit.Default);

var query =
    mFluxObservable
        .Buffer(() => Observable
            .Amb(subject, closing)
            .Take(1));

Now I only need to call subject.OnNext(Unit.Default) to force the buffer to flush. A new buffer is started immediately after the flush.