Class: Wakame::Runner::Master

Inherits:
Object
  • Object
show all
Includes:
Daemonize
Defined in:
lib/wakame/runner/master.rb

Instance Method Summary collapse

Methods included from Daemonize

#change_privilege, #daemonize, #on_restart, #pid, #pid_file, #remove_pidfile, #restart, #setup_pidfile

Constructor Details

#initialize(argv) ⇒ Master

Returns a new instance of Master.



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# File 'lib/wakame/runner/master.rb', line 9

def initialize(argv)
  @argv = argv

  @options = {
    :amqp_server => URI.parse('amqp://guest@localhost/'),
    :log_file => '/var/log/wakame-master.log',
    :pid_file => '/var/run/wakame/wakame-master.pid',
    :daemonize => true
  }

  parser.parse! @argv
end

Instance Method Details

#parser ⇒ Object 



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# File 'lib/wakame/runner/master.rb', line 23

def parser
  @parser ||= OptionParser.new do |opts|
    opts.banner = "Usage: master [options]"

    opts.separator ""
    opts.separator "Master options:"
    opts.on( "-p", "--pid PIDFILE", "pid file path" ) {|str| @options[:pid_file] = str }
    opts.on( "-u", "--uid UID", "user id for the running process" ) {|str| @options[:uid] = str }
    opts.on( "-s", "--server AMQP_URI", "amqp server" ) {|str|
      begin 
        @options[:amqp_server] = URI.parse(str)
      rescue URI::InvalidURIError => e
        fail "#{e}"
      end
    }
    opts.on("-X", "", "daemonize flag" ) { @options[:daemonize] = false }
    
  end


end

#run ⇒ Object 



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# File 'lib/wakame/runner/master.rb', line 46

def run
  %w(QUIT INT TERM).each { |i|
    Signal.trap(i) { Wakame::Master.stop{ remove_pidfile } }
  }

  unless @options[:amqp_server].nil?
    uri = @options[:amqp_server]
    default = ::AMQP.settings
    opts = {:host => uri.host,
      :port => uri.port || default[:port],
      :vhost => uri.vhost || default[:vhost],
      :user=>uri.user || default[:user],
      :pass=>uri.password ||default[:pass]
    }
  else
    opts = nil
  end

  if @options[:daemonize]
    daemonize(@options[:log_file])
  end

  change_privilege(@options[:uid]) if @options[:uid]

  Initializer.run(:process_master)

  EM.epoll if Wakame.config.eventmachine_use_epoll
  EM.run {
    Wakame::Master.start(opts)

    EM.add_periodic_timer(5) {
      next
      buf = ''
      buf << "<--- RUNNING THREADS --->\n"
      ThreadGroup::Default.list.each { |i|
        buf << "#{i.inspect} #{i[:name].to_s}\n"
      }
      buf << ">--- RUNNING THREADS ---<\n"
      puts buf
    }
  }
end