State-machine based automatic exchange and queue set-up.

sjlongland commented 9 years ago

This uses crude state machines (use of QStateMachine is on the road map) to implement various operations for Queues and Exchanges.

If the connection gets dropped or a channel forcibly closed, this allows the exchange or queue to restore its state when the channel re-opens, including binding to exchanges/topics in the case of queues. It also allows for set-and-forget configuration of exchanges and queues, since the state machine will take care to ensure the steps are done at the appropriate times.

Status of this branch:

Code mostly seems to do what it says on the tin (172 exchanges, 59 queues) but more testing needed.
Some tests probably need reviewing
Coding style in this branch will need checking, I'll work on this as I come across coding style violations.

sjlongland commented 9 years ago

Okay, I've done some splitting up of the commits. This required re-writing a couple.

https://github.com/sjlongland/qamqp/tree/state-machine-client :- Changes to the client itself, namely pointer storage. https://github.com/sjlongland/qamqp/tree/state-machine-chan :- Changes to QAmqpChannel, based on state-machine-client. https://github.com/sjlongland/qamqp/tree/state-machine-ex :- Changes to QAmqpExchange, based on state-machine-chan. https://github.com/sjlongland/qamqp/tree/state-machine-q :- Changes to QAmqpQueue, based on state-machine-ex.

mbroadst commented 9 years ago

@sjlongland cool lets put up the PR for the state-machine-client and work through it? seems the rest are dependent on that

sjlongland commented 9 years ago

Since we're doing this in pieces, I'll close this PR and we'll address the changes in separate requests.

mbroadst / qamqp

State-machine based automatic exchange and queue set-up. #26