Class: OpalWebpackLoader::CompileWorker

Inherits:
Object
  • Object
show all
Defined in:
lib/opal-webpack-loader/compile_worker.rb

Constant Summary collapse

SIGNALS = 
%w[QUIT]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(master_pid, socket, tempfile, number, compiler_options) ⇒ CompileWorker

Returns a new instance of CompileWorker.



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# File 'lib/opal-webpack-loader/compile_worker.rb', line 9

def initialize(master_pid, socket, tempfile, number, compiler_options)
  @master_pid = master_pid
  @socket     = socket
  @tempfile   = tempfile
  @number     = number
  @compiler_options = compiler_options.merge(es6_modules: true)
end

Instance Attribute Details

#number ⇒ Object (readonly)

Returns the value of attribute number.



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# File 'lib/opal-webpack-loader/compile_worker.rb', line 7

def number
  @number
end

#tempfile ⇒ Object (readonly)

Returns the value of attribute tempfile.



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# File 'lib/opal-webpack-loader/compile_worker.rb', line 7

def tempfile
  @tempfile
end

Instance Method Details

#==(other_number) ⇒ Object 



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# File 'lib/opal-webpack-loader/compile_worker.rb', line 17

def ==(other_number)
  number == other_number
end

#start ⇒ Object 



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# File 'lib/opal-webpack-loader/compile_worker.rb', line 21

def start
  $PROGRAM_NAME = "owl compile worker #{number}"
  SIGNALS.each { |sig| trap(sig, 'IGNORE') }
  trap('CHLD', 'DEFAULT')
  alive = true
  %w[TERM INT].each { |sig| trap(sig) { exit(0) } }
  trap('QUIT') do
    alive = false
    begin
      @socket.close
    rescue
      nil
    end
  end
  ret = nil
  i = 0
  while alive && @master_pid == Process.ppid
    tempfile.chmod(i += 1)

    if ret
      begin
        client = @socket.accept_nonblock
        request = client.gets("\x04")

        if request.start_with?('command:stop')
          OpalWebpackLoader::CompileServer.unlink_socket_on_exit
          Process.kill('TERM', @master_pid)
          exit(0)
        else
          result = compile(request)
          client.write result
          client.flush
          client.close
        end
      rescue Errno::EAGAIN, Errno::EWOULDBLOCK
      end
    end
    tempfile.chmod(i += 1)
    ret = begin
      IO.select([@socket], nil, nil, OpalWebpackLoader::CompileServer::TIMEOUT / 2) || next
    rescue Errno::EBADF
    end
  end
end