Class: GrpcKit::Session::ServerSession

Inherits:
DS9::Server
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/grpc_kit/session/server_session.rb

Instance Method Summary collapse

Constructor Details

#initialize(io, dispatcher) ⇒ ServerSession

Returns a new instance of ServerSession

Parameters:


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# File 'lib/grpc_kit/session/server_session.rb', line 20

def initialize(io, dispatcher)
  super() # initialize DS9::Session

  @io = io
  @streams = {}
  @stop = false
  @dispatcher = dispatcher
  @peer_shutdowned = false
  @inflights = []
  @drain = nil
end

Instance Method Details

#drain ⇒ void

This method returns an undefined value.


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# File 'lib/grpc_kit/session/server_session.rb', line 86

def drain
  @drain ||= GrpcKit::Session::DrainController.new
end

#run_once ⇒ bool

Return session can continue

Returns:

  • (bool) —

    return session can continue


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# File 'lib/grpc_kit/session/server_session.rb', line 52

def run_once
  if @peer_shutdowned || @stop || !(want_read? || want_write?)
    # it could be called twice
    @streams.each_value(&:close)
    return false
  end

  if @drain
    if @streams.empty?
      shutdown
      return
    end

    @drain.call(self)
  end

  rs, ws = @io.select

  if !rs.empty? && want_read?
    do_read
  end

  if !ws.empty? && want_write?
    send
  end

  true
rescue Errno::ECONNRESET, IOError => e
  GrpcKit.logger.debug(e.message)
  shutdown
  false
end

#shutdown ⇒ void

This method returns an undefined value.


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# File 'lib/grpc_kit/session/server_session.rb', line 91

def shutdown
  stop
  @io.close
rescue StandardError => e
  GrpcKit.logger.debug(e)
end

#start ⇒ void

This method returns an undefined value.


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# File 'lib/grpc_kit/session/server_session.rb', line 33

def start
  loop do
    invoke

    if @streams.size == 0
      unless @io.wait_readable
        shutdown
        break
      end
    end

    continue = run_once
    break unless continue
  end
ensure
  GrpcKit.logger.debug('Finish server session')
end