noflo/noflo — pull request #186 by trustmaster (2014-06-05 21:13:07+00:00)
Title: Option to preserve order of packets in GroupedInput

**Changes**:
- Added concept of Streams to turn FBP substreams into JavaScript objects and vice versa.
- Added `ordered` option to `GroupedInput` which makes Async components guarantee that packet order on input is preserved on the output. This is a replacement for what `AsyncComponent` supposed to do, but it didn't maintain substreams consistency.
- Fixed a few issues about groups and synchronization, ensured that Substream sends are really atomic for async senders.
- More specs!

It will probably be followed soon by `StreamReciever` and some examples of working with streams as a whole, if it turns to be practical enough.

**An important question** is: should the `ordered` option be on or off by default in Async components? For FBP it is `true`, for dataflow systems it is usually `false`.