1
vote
1answer
164 views

Good pattern(s) for pointing to mutable state

I asked this question once here, but believe the question was unclear. However I'm having a hard time extracting the general problem from my specific case. UPDATE: I've answered my own question ...
4
votes
2answers
219 views

How is the publish-subscribe pattern different from gotos?

My understanding is that Goto statements are generally frowned up. But the publish-subscribe pattern seems to be conceptually similar in that when a piece of code publishes a message, it performs a ...
0
votes
1answer
195 views

sqlite trigger or application event?

I've have two event queues(table mapped queues) based on two different states of same data stored in two different tables. The events are generated on create/update/delete on both the tables. ...
9
votes
1answer
3k views

Communication between nested directives

There seem to be quite a few ways of communicating between directives. Say you have nested directives, where the inner directives must communicate something to the outer (e.g. it's been chosen by the ...
19
votes
6answers
2k views

Is an event loop just a for/while loop with optimized polling?

I'm trying to understand what an event loop is. Often the explanation is that in the event loop, you do something until you're notified that an event occurred. You than handle the event and continue ...
1
vote
2answers
229 views

In an event-driven environment, how should a “cancel” function abort all further events?

In my iOS app, things are mostly driven by events. The user presses a button The app listens for an external device to be connected to the iOS device Once the device is detected (is connected), an ...
2
votes
2answers
274 views

What are the caveats of the event system built on Messenger rather than on classic .NET events?

MVVM Light and PRISM offer messenger to implement event system. the approximate interface looks like the following one: interface Messanger { void ...