From: Zac Elston <zelston@...>
Date: 2007-04-06T04:27:46+09:00
Subject: Re: newbie, hash or 2dArry + threads

first, thanks for the responses, ruby really is a great language.

My delima is that I'm trying to multithread the actions and store the 
results in a hash with the hostname as  key

to redefine the issue, for each host I need a thread and I expect a 
result, then I'd like to be able to see the result in a 
hash[host][result]

but I'm having trouble mixing the hash with the thread.  maybe I'm going 
about this all wrong. (this is outputting to a rails view, which is why 
i have "@vars"

I have

    @threads = []
    @resulthash = Hash.new(0)
    @hostarray.each do |host|
        threads << Thread.new(host) do |myhost|
        @resulthash = { :myhost => {
        :packages => @mypackages,
        :result => doXMLquery(host,@mypackages)} }
        logger.info("host = " + host + ", result = " + 
@resulthash[:myhost][:result])
        end
    end

@threads.each {|thr| thr.join }

logger.info("result of threads..")
@hostarray.each do |myhost|
        logger.info("host = " + myhost + ", result = " + 
@resulthash[:myhost][:result])
end

 logger output

host = hostX, result = --data returned from hostX--
host = hostY, result = --data returned from hostY--
result of threads..
host = hostX, result = --data returned from hostY--
host = hostY, result = --data returned from hostY--

I'm clearly loosing context of the [:host][:result] in the final two 
lines.

any pointers?

thanks
-zaq

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