Initial commit

Author: prdn

Diff for: .gitignore

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+/.bundle/
+/.yardoc
+/Gemfile.lock
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+*.swp
+*.swo

Diff for: CODE_OF_CONDUCT.md

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+# Contributor Code of Conduct
+
+As contributors and maintainers of this project, we pledge to respect all people who contribute through reporting issues, posting feature requests, updating documentation, submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project a harassment-free experience for everyone, regardless of level of experience, gender, gender identity and expression, sexual orientation, disability, personal appearance, body size, race, age, or religion.
+
+Examples of unacceptable behavior by participants include the use of sexual language or imagery, derogatory comments or personal attacks, trolling, public or private harassment, insults, or other unprofessional conduct.
+
+Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct. Project maintainers who do not follow the Code of Conduct may be removed from the project team.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by opening an issue or contacting one or more of the project maintainers.
+
+This Code of Conduct is adapted from the [Contributor Covenant](http:contributor-covenant.org), version 1.0.0, available at [http://contributor-covenant.org/version/1/0/0/](http://contributor-covenant.org/version/1/0/0/)

Diff for: Gemfile

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+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in pigato.gemspec
+gemspec

Diff for: LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2015 Paolo Ardoino
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

Diff for: README.md

@@ -1 +1,39 @@
-# pigato-ruby
+# Pigato
+
+Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/pigato`. To experiment with that code, run `bin/console` for an interactive prompt.
+
+TODO: Delete this and the text above, and describe your gem
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'pigato'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install pigato
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release` to create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+1. Fork it ( https://github.com/[my-github-username]/pigato/fork )
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create a new Pull Request

Diff for: Rakefile

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+require "bundler/gem_tasks"
+

Diff for: bin/console

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+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "pigato"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start

Diff for: bin/setup

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+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+bundle install
+
+# Do any other automated setup that you need to do here

Diff for: examples/client.rb

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+#!/usr/bin/env ruby
+
+require "rubygems"
+require "pigato"
+
+client = PigatoClient.new('tcp://localhost:55555')
+requests = 10
+requests.times do |i|
+  begin
+    puts client.send('echo', 'Hello world')
+  end
+end
+
+puts "#{requests} requests/replies processed"

Diff for: lib/pigato.rb

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+require "json"
+require "ffi-rzmq"
+require "pigato/version"
+require "pigato/proto.rb"
+
+module Pigato
+end

Diff for: lib/pigato/client.rb

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+module Pigato
+  class Client
+    include MDP
+
+    attr_accessor :timeout
+
+    def initialize broker
+      @broker = broker
+      @context = ZMQ::Context.new(1)
+      @client = nil
+      @poller = ZMQ::Poller.new
+      @timeout = 2500
+
+      reconnect_to_broker
+    end
+
+    def send service, request, timeout = 2500
+      request = [request.to_json]
+
+      rid = 'RID' + (rand() * 1000000).to_s
+      # Prefix request with protocol frames
+      # Frame 0: empty (REQ emulation)
+      # Frame 1: "MDPCxy" (six bytes, MDP/Client x.y)
+      # Frame 2: Service name (printable string)
+      request = [MDP::C_CLIENT, MDP::W_REQUEST, service, rid].concat(request)
+      @client.send_strings request
+
+      res = Array.new
+      res << rid
+
+      data = Array.new
+      while 1 do
+        chunk = _recv(timeout)
+        data << chunk[4]
+        break if chunk[0] == MDP::W_REPLY
+      end
+
+      res << data
+      res
+    end
+
+    def _recv timeout
+      items = @poller.poll(timeout)
+      if items
+        messages = []
+        @client.recv_strings messages
+
+        # header
+        if messages.shift != MDP::C_CLIENT
+          raise RuntimeError, "Not a valid MDP message"
+        end
+
+        return messages
+      end
+
+      nil
+    end
+
+    def reconnect_to_broker
+      if @client
+        @poller.deregister @client, ZMQ::DEALER
+      end
+
+      @client = @context.socket ZMQ::DEALER
+      @client.setsockopt ZMQ::LINGER, 0
+      @client.setsockopt ZMQ::IDENTITY, "C" + (rand() * 10).to_s
+      @client.connect @broker
+      @poller.register @client, ZMQ::POLLIN
+    end
+  end
+end

Diff for: lib/pigato/proto.rb

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+module PIGATO
+  module PROTO
+    #  This is the version of MDP/Client we implement
+    C_CLIENT = "C"
+
+    #  This is the version of MDP/Worker we implement
+    W_WORKER = "W"
+
+    #  MDP/Server commands, as strings
+    W_READY        =  "1"
+    W_REQUEST      =  "2"
+    W_REPLY        =  "3"
+    W_HEARTBEAT    =  "4"
+    W_DISCONNECT   =  "5"
+    W_REPLY_PARTIAL   =  "6"
+  end
+end

Diff for: lib/pigato/version.rb

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+module Pigato
+  VERSION = "0.1.0"
+end

Diff for: pigato.gemspec

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'pigato/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "pigato"
+  spec.version       = Pigato::VERSION
+  spec.authors       = ["Paolo Ardoino"]
+  spec.email         = ["[email protected]"]
+
+  spec.summary       = %q{PIGATO-RUBY}
+  spec.description   = %q{PIGATO-RUBY}
+  spec.homepage      = "https://github.com/prdn/pigato"
+  spec.license       = "MIT"
+
+  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.8"
+  spec.add_development_dependency "rake", "~> 10.0"
+end