Class: Protobuf::Rpc::Zmq::Broker

Inherits:
Object
  • Object
show all
Includes:
Util
Defined in:
lib/protobuf/rpc/servers/zmq/broker.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Util

#log_signature, #resolve_ip, #zmq_error_check

Methods included from Logging

initialize_logger, #log_exception, #log_signature, #logger, #sign_message

Constructor Details

#initialize(server) ⇒ Broker

Returns a new instance of Broker.



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# File 'lib/protobuf/rpc/servers/zmq/broker.rb', line 11

def initialize(server)
  @server = server

  init_zmq_context
  init_local_queue
  init_backend_socket
  init_frontend_socket
  init_poller
rescue
  teardown
  raise
end

Instance Attribute Details

#local_queue ⇒ Object (readonly)

Returns the value of attribute local_queue.



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# File 'lib/protobuf/rpc/servers/zmq/broker.rb', line 9

def local_queue
  @local_queue
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/protobuf/rpc/servers/zmq/broker.rb', line 24

def run
  @idle_workers = []
  @running = true

  loop do
    process_local_queue
    rc = @poller.poll(broker_polling_milliseconds)

    # The server was shutdown and no requests are pending
    break if rc == 0 && !running? && @server.workers.empty?
    # Something went wrong
    break if rc == -1

    check_and_process_backend
    process_local_queue # Fair ordering so queued requests get in before new requests
    check_and_process_frontend
  end
ensure
  teardown
  @running = false
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/protobuf/rpc/servers/zmq/broker.rb', line 46

def running?
  @running && @server.running?
end