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I noticed on your last email Vadim, that your headers changed from
X-Operating-System UNIX to
X-Operating-System UNIX (unfortunately)
and for Ceri I noticed two headers that look odd
X-message-flag: All your linuxconf-configured redhat are belong to us
X-message-flag-attribution: suresh, sdm
Vadim Vygonets wrote:
>Quoth Derek Simkowiak on Tue, Jan 07, 2003:
>
>
>>>>(1) The code that implements the drivers.
>>>>(2) An *instance* of the use of one of the drivers, specified in the
>>>> configuration file.
>>>>
>>>>
>> The word "instance" carries a lot of baggage to me; it could refer
>>too O.O.P.,
>>
>>
>
>What's the difference? In object oriented programming, you have
>classes, and you have objects which are instances of those
>classes; in Exim config file, you have drivers (such as the
>"accept" router) and their instances (such as "localuser" in the
>default configuration).
>
>
>
>>or server processes,
>>
>>
>
>I call them processes.
>
>
>
>>or package installs...
>>
>>
>
>How so?
>
>
>
>>if a new user goes
>>looking for too much analogy with one of those models he may get lost.
>>
>>
>
>Not at all, I'm afraid.
>
>
>
>> Perhaps making is very clear at the beginning that an "instance"
>>is just a "particular driver config", and nothing more, that would prevent
>>anyone assuming weird stuff like parent/child relationships or spawns (or
>>whatever).
>>
>>
>
>They're not different from driver instances in the kernel. You
>may have two identical cards, which will be driven by two
>instances of the same driver (and the devices will be known to
>the kernel as, say, sd0 and sd1, if they're SCSI discs).
>
>
>
>>1. A driver is "configured", not "defined", in the config file. I.e.,
>>changes like:
>>
>>"Within a driver definition, there are [...blah, blah...]"
>>"Within a driver configuration, there are [...blah...]"
>>
>>
>
>Not sure. Looks quite like C definition to me.
>
>
>
>>2. Underlying drivers and a particular config thereof are not the same
>>thing. I.e.:
>>
>>"[Section Title] 3.8 Running an individual router"
>>"[Section Title] 3.8 Running an individual router config"
>>
>>"The first router in a configuration is often [...blah...]"
>>"The first router config in the configuration file is often [...blah...]"
>>
>>
>
>Definitely not. You don't run a config (come on, this is
>confusing), you run a driver, or an instance thereof.
>
>
>
>> If you define "instance" clearly up front as "a particular
>>configuration of a driver", then the above examples would change as
>>follows:
>>
>>"Within a driver definition, there are [...blah, blah...]"
>>"Within an instance, there are [...blah...]"
>>
>>
>
>That's somewhat better.
>
>
>
>>"3.8 Running an individual router"
>>"3.8 Running a router instance"
>>
>>
>
>This sounds quite awkward, to me.
>
>Vadik.
>
>--
>Who needs friends when you can sit alone in your room and drink?
>
>--
>
>## List details at http://www.exim.org/mailman/listinfo/exim-users Exim details at http://www.exim.org/ ##
>
>
>
>
>
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