Class: Pwrake::GfarmPostprocess

Inherits:
Object
  • Object
show all
Defined in:
lib/pwrake/gfarm/gfarm_postprocess.rb

Instance Method Summary collapse

Constructor Details

#initialize(selector) ⇒ GfarmPostprocess

Returns a new instance of GfarmPostprocess.



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# File 'lib/pwrake/gfarm/gfarm_postprocess.rb', line 7

def initialize(selector)
  @io = IO.popen('gfwhere-pipe','r+')
  @io.sync = true
  @reader = NBIO::Reader.new(selector,@io)
  @writer = NBIO::Writer.new(selector,@io)
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/pwrake/gfarm/gfarm_postprocess.rb', line 50

def close
  @writer.halt
  @reader.halt
  @io.close
end

#run(task_wrap) ⇒ Object 



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# File 'lib/pwrake/gfarm/gfarm_postprocess.rb', line 14

def run(task_wrap)
  if !task_wrap.is_file_task?
    return []
  end
  filename = task_wrap.name
  begin
    @writer.put_line(filename)
  rescue Errno::EPIPE
    Log.warn "GfarmPostprocess#run: Errno::EPIPE for #{filename}"
    return []
  end
  s = @reader.get_line
  if s.nil?
    raise GfwhereError,"lost connection to gfwhere-pipe"
  end
  s.chomp!
  if s != filename
    raise GfwhereError,"path mismatch: send=#{filename}, return=#{s}"
  end
  while s = @reader.get_line
    s.chomp!
    case s
    when /^gfarm:\/\//
      next
    when /^Error:/
      a = []
      break
    else
      a = s.split(/\s+/)
      break
    end
  end
  #Log.debug "Gfarm file=#{filename} nodes=#{a.join("|")}"
  a
end