Class: Parallel::Worker

Inherits:
Object
  • Object
show all
Defined in:
lib/parallel.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(read, write, pid) ⇒ Worker

Returns a new instance of Worker.



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# File 'lib/parallel.rb', line 36

def initialize(read, write, pid)
  @read, @write, @pid = read, write, pid
end

Instance Attribute Details

#pid ⇒ Object (readonly)

Returns the value of attribute pid.



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# File 'lib/parallel.rb', line 34

def pid
  @pid
end

#read ⇒ Object (readonly)

Returns the value of attribute read.



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# File 'lib/parallel.rb', line 34

def read
  @read
end

#thread ⇒ Object

Returns the value of attribute thread.



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# File 'lib/parallel.rb', line 35

def thread
  @thread
end

#write ⇒ Object (readonly)

Returns the value of attribute write.



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# File 'lib/parallel.rb', line 34

def write
  @write
end

Instance Method Details

#close_pipes ⇒ Object 



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# File 'lib/parallel.rb', line 40

def close_pipes
  read.close
  write.close
end

#wait ⇒ Object 



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# File 'lib/parallel.rb', line 45

def wait
  Process.wait(pid)
rescue Interrupt
  # process died
end

#work(data) ⇒ Object 



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# File 'lib/parallel.rb', line 51

def work(data)
  begin
    Marshal.dump(data, write)
  rescue Errno::EPIPE
    raise DeadWorker
  end

  begin
    Marshal.load(read)
  rescue EOFError
    raise DeadWorker
  end
end