Re: [Twisted-Python] Help implement protocol

10 Aug 2006


      On 8/4/06, Keith Cheung (張國良)  wrote:
...
Hi all,
I want to implement some handshake protocol, say..
1. Client:      WhatDate
2. Server:      5Aug
3. Client:      WhatYear
4. Server:      2006
5. Client:      WhatTime
6. Server:      1005
So, for the client:-  (pseudo code)
        def connectionMade():
                send "WhatDate"
                state = askingForDate
        def lineReceived(data):
                switch state:
                        askingForDate:
                                date = data
                                send "WhatYear"
                                state = askingForYear
                                break
                        askingForYear:
                                year = data
                                send = "WhatTime"
                                state = askingForTime
                                break
                        askingForTime:
                                time = data
                                state = initialState
                                disconnect
The switch case becomes gigantic as the protocol grow.  Instead of keeping states, are there better ways to implement?
I know this expands the scope of what you have to learn, but look at
State Machine Compiler.
You can create a single object, and then generate all the state
management code from SMC.


-- 
If you don't know what you want, you probably need a nap.

Re: [Twisted-Python] Help implement protocol

jarrod roberson