From: Jon Handler <jhandler@...>
Date: 2007-10-13T08:51:32+09:00
Subject: Is there a standard pattern for threaded access to a file?

I'm pretty new to ruby and this is one of those areas where I can't
quite seem to turn my head inside out as the language requires :-)

I have a log file that I want to process in parts, with multiple threads
working from the same file, each one getting a line at a time and doing
something with it.

I'd like something like

1. Open the file
2. Create 5 threads

Each thread should read a line of the file and process it, but no 2
threads should get the same line.

What I have looks like

open (ARGV.flags.log) do |logfile|
  logfile.each do |line|

             blah blah blah...

         end
end

but that's inside out! How do I rubify this code?

Thanks,

Jon
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