Wed, 30 Nov 2005

Accessors vs. public member variables

Steinar, you use accessor rather than public data members because you may need to change the behaviour of the class to do something when you set a member variable. If you have all your data public, you can't do this. If you force people to go via a function, you can make changes to the class without affecting its users. You have a similar issue with inherited classes.

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Wed, 16 Nov 2005

Cult

I now have one less reason to visit Cambridge. Brighton is getting its own Cult Clothing store. Frankly, it's the best clothes shop I've found.

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Tue, 15 Nov 2005

Minimising service downtime during upgrades

Having just mistakenly performed a large upgrade including powerdns, I'm wondering if there isn't something we can do to minimise the amount of time we stop a service between pre-inst and post-inst. Could we have something like a post-unpack maintainer script or a flag telling dpkg that the package contains a daemon and to minimise the time between the maintainer scripts where possible.

Yes I should read the list archives, but I'm about to go out. Must remember to check when I get back.

Edit:Adeodato Simó pointed out that in most cases daemons should just do a restart in the postinst, unless changing files on disk is a problem. Need to investigate if this is an issue for pdns-server and fix it.

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