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POGo Channels in Ruby
 

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    <p>In the Go programming language, you can send Messages around using a construct called "Channels". <a href="http://golang.org/doc/effective_go.html#channels" rel="noreferrer">http://golang.org/doc/effective_go.html#channels</a></p> <p>I would love to use something like that in Ruby, especially for IPC.</p> <p>Pseudocode of what I want:</p> <pre><code>channel = Channel.new fork do 3.times{ channel.send("foo ") } exit! end Thread.new do 3.times{ channel.send("bar ") } end loop do print channel.recv end # ~&gt; bar foo foo bar bar foo </code></pre> <p>Is there any construct, library or equivalent for Ruby which works like that ?</p> <p>If not: What is the best way to build such an abstraction?</p> <p><strong>UPDATE:</strong> To clarify what I need from these Channels. </p> <p>One use case: Some forked workers waiting for jobs. They all read from the same JobChannel and report results to the same ResultChannel. </p> <p>The Channels I need</p> <ul> <li>are very fast, </li> <li>writes do not block, <em>(message sending)</em> </li> <li>reads do block, <em>(message receiving)</em></li> <li>do not need special treatment before forking,</li> <li>lightweight and simple would be nice.</li> </ul> <p>So far I played around with </p> <ul> <li>DRb, <em>(opposite of lightweight + slow + too much magic for my little brain)</em> </li> <li>Sockets, <em>(UNIXSocket, TCPSocket ... Sockets seem to have many many ways of using them. I got a half-working channel on UNIXSockets. If you think sockets make sense, what subset of features should I look at?)</em></li> <li>Pipes. <em>(Connecting more than 2 Processes seems to be non-trivial)</em></li> </ul> <p>If any of those was already the perfect technology for my problem, please provide tutorials etc. which have more focused information on my requirements.</p>
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    1. USJulius Eckert
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      1. USRishav Rastogi
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      1. USVicente Reig
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    1. COis this something like pipes or shared memory ?. For what purpose do you need such a thing. the channel it seems is sending information and receiving it itself ?
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      1. POGo Channels in Ruby
      1. USRishav Rastogi
    2. CO@Rishav Rastogi: No, Go Channels are much more like, well, like Channels. Go's Channels are based on Newsqueak's Channels (not surprisingly, since Newsqueak was designed by Rob Pike), which in turn are a hybrid between CSP Channels (the later version, obviously, not the original one) and π-Calculus Channels. I believe Occam might also have been an influence.
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      1. USJörg W Mittag
 

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