Q: What is Timer actually observing

[mwpowellhtx]

Would someone mind clarifying, Timer, or any of the timer based extensions. What is long exactly?

/// ...
/// <returns>An observable sequence that produces a value after the due time has elapsed.</returns>
///                                 ^^^^^^^^^^^^^^^^^^^^^
public static IObservable<long> Timer(TimeSpan dueTime) { ... }

Is that just a random long value? Number of ticks? What exactly...

[mwpowellhtx]

So from inferred analysis, appears as though long x is reporting the number of steps or iterations the timer has performed.

So... when that timer has achieved 9,223,372,036,854,775,807, what happens next? Does that roll over to zero (0)?

Or do we need to think about canceling the previous subscription and restarting the timer, if it was intended to run long, pardoning the pun.