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Iñaki Baz Castillo:

> I get data (DNS SRV records), which is an array with entries like this:

> #<EventMachine::Udns::RR_SRV:0x00000001ea4970 @domain="domain.org", @priority=1, @weight=50, @port=5062>

> Each entry is a SRV record. It has a priority (lowest value is the
> best) and weight (higher value means more probability to choose it).

> The client getting such array of SRV records wants to connect to a
> server based on SRV priorities/weight, which works as follows:
> - SRV records with best priority must be used first.
> - If there are various SRV records with same priority, then the
> probability of choosing each one depends on its weight value (random
> with weight).
> - If the chosen SRV record fails to connect (i.e. server down) next
> one (based on same priority/weight rules) must be tryed.

Something to the tune of

srvs.sort { |a, b| (a.priority <=> b.priority).nonzero? or (b.weight <=> a.weight).nonzero? or rand }

should work, then. :)

Piotr Szotkowski
-- 
¡ÆDriving myself slowly nuts with printing recursive S-expressions sanely in Go.¡Ç
¡ÆFord Prefect always said that going insane should
be enjoyed, and is not something to be rushed.¡Ç
                                             [Eleanor McHugh, Phillip Gawlowski]




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