Hi!
I'm quite happy that my question (or really: Itamar's answer) triggered
the interesting discussion about glossaries. But there are some aspects
about SerialPort that are not yet clear to me. So I'm trying to reclaim
this thread ;-).
On Fri, Jan 28, 2011 at 08:25:52AM -0500, Itamar Turner-Trauring wrote:
> The TCP port doesn't implement IService either...
This is correct. But TCPServer does implement IService, and I was
looking for an analog I could use for the serial port. I'd like to write
something along the following lines:
def setupSerialCommunication(multiService):
lrFactory = MyLineReceiverFactory()
serialComm = internet.SerialServer(lrFactory, '/dev/ttyS0')
serialComm.setServiceParent(multiService)
(BTW: I'm not quite sure if SerialServer would belong to the internet
package...)
In my understanding, the communication over the serial line should be
handled in a similar way to communicating via TCP/IP. So my questions
should have been: Why isn't there an analog to TCPServer for SerialPort?
Would it make sense to add it?
> A service is supposed to be something you can start and stop, and
> encapsulates a self-contained piece of business logic. The purpose is
> both deployment and ease of regression testing.
Thanks for the explanation. It is certainly a good idea to think about
the partitioning of the services and reflect it in the code.
> So maybe your service starts both a webserver and a serialport,
> because it requires both -- which is why mostly you should just
> implement your own service classes.
There is the class t.a.s.MultiService for encapsulating other services.
In my current implementation I just instantiate it and add the other
services; afterwards I set its service Parent to the application. What
would be the advantage of subclassing Service and redefining its
startService and stopService methods?
Thanks & best regards,
Albert
--
Albert Brandl
Weiermayer Solutions GmbH | Abteistraße 12, A-4813 Altmünster
phone: +43 (0) 720 70 30 14 | fax: +43 (0) 7612 20 3 56
web: http://www.weiermayer.com
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