Module: Roby::Distributed::Test

Includes:
Roby::Distributed, Test
Defined in:
lib/roby/test/distributed.rb

Defined Under Namespace

Modules: RemotePeerSupport

Constant Summary

Constants included from Roby::Distributed

DEBUG_MARSHALLING, DEFAULT_DROBY_PORT, DISCOVERY_RING_PORT

Constants included from Test

Test::ASSERT_ANY_EVENTS_TLS, Test::BASE_PORT, Test::DISCOVERY_SERVER, Test::LOCAL_PORT, Test::LOCAL_SERVER, Test::REMOTE_PORT, Test::REMOTE_SERVER, Test::Unit

Constants included from Roby

ROBY_LIB_DIR, ROBY_ROOT_DIR, RX_IN_FRAMEWORK, VERSION

Instance Attribute Summary collapse

Attributes included from Test

#console_logger, #original_collections, #remote_processes, #timings

Instance Method Summary collapse

Methods included from Roby::Distributed

RemoteProxyModel, call, call_peers, clean_triggered, droby_dump, each_object_relation, each_updated_peer, format, ignore!, neighbours, new_neighbours, notify_new_neighbours, on_neighbour, on_transaction, owns?, peer, peers, process_cycle, process_pending, publish, published?, relations_of, remote_id, remotely_useful_objects, subgraph_of, subscribed?, transmit, trigger, unpublish, update, update_all, updating?, updating_all?

Methods included from Test

assert_any_event_result, #assert_doesnt_timeout, #assert_marshallable, #assert_original_error, check_event_assertions, #display_event_structure, #display_timings!, finalize_event_assertions, interrupt_waiting_threads, #new_plan, #plan, #prepare_plan, #remote_process, #restore_collections, sampling, #save_collection, stats, #stop_remote_processes, #teardown_plan, #wait_thread_stopped

Methods included from Roby

RelationSpace, app, check_failed_missions, condition_variable, control_thread, each_cycle, each_exception_handler, every, execute, filter_backtrace, format_exception, inside_control?, load_all_relations, log_exception, on_exception, once, outside_control?, poll_state_events, pretty_print_backtrace, return_condition_variable, wait_one_cycle, wait_until

Methods included from ExceptionHandlingObject

#handle_exception, #pass_exception

Instance Attribute Details

#central_tuplespace ⇒ Object (readonly)

Returns the value of attribute central_tuplespace.



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# File 'lib/roby/test/distributed.rb', line 153

def central_tuplespace
  @central_tuplespace
end

#local ⇒ Object (readonly)

Returns the value of attribute local.



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# File 'lib/roby/test/distributed.rb', line 153

def local
  @local
end

#remote ⇒ Object (readonly)

Returns the value of attribute remote.



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# File 'lib/roby/test/distributed.rb', line 153

def remote
  @remote
end

#remote_peer ⇒ Object (readonly)

Returns the value of attribute remote_peer.



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# File 'lib/roby/test/distributed.rb', line 153

def remote_peer
  @remote_peer
end

#remote_plan ⇒ Object (readonly)

Returns the value of attribute remote_plan.



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# File 'lib/roby/test/distributed.rb', line 153

def remote_plan
  @remote_plan
end

Instance Method Details

#peer2peer(detached_control = false, &remote_init) ⇒ Object

Establishes a peer to peer connection between two ConnectionSpace objects



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# File 'lib/roby/test/distributed.rb', line 156

def peer2peer(detached_control = false, &remote_init)
		timings[:starting_peers] = Time.now
		start_peers(detached_control, &remote_init)
		setup_connection
		timings[:started_peers] = Time.now
end

#process_events ⇒ Object 



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# File 'lib/roby/test/distributed.rb', line 163

def process_events
		if Roby.control.running?
 remote.wait_one_cycle
 Roby.control.wait_one_cycle
		elsif remote_peer && !remote_peer.disconnected?
 Roby::Control.synchronize do
			remote.process_events
			Roby.control.process_events
 end
		else
 super
		end
end

#remote_server(&block) ⇒ Object 



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# File 'lib/roby/test/distributed.rb', line 200

def remote_server(&block)
		DRb.stop_service
		remote_process do
 server = Class.new do
			class_eval(&block)
 end.new
 DRb.start_service REMOTE_SERVER, server
		end

		DRb.start_service LOCAL_SERVER
		DRbObject.new_with_uri(REMOTE_SERVER)
end

#remote_task(match) ⇒ Object 



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# File 'lib/roby/test/distributed.rb', line 177

def remote_task(match)
		set_permanent = match.delete(:permanent)

		found = nil
		remote_peer.find_tasks.with_arguments(match).each do |task|
 assert(!found)
 if set_permanent
			plan.permanent(task)
 end

 found = if block_given? then yield(task)
  else task
  end
		end
		found
end

#setup ⇒ Object 



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# File 'lib/roby/test/distributed.rb', line 10

def setup
		super

		save_collection Distributed.new_neighbours_observers
		@old_distributed_logger_level = Distributed.logger.level

		timings[:setup] = Time.now

		# Start the GC so that it does not kick in a test. On slow machines, 
		# it can trigger timeouts
		GC.start
		timings[:gc] = Time.now
end

#setup_connection ⇒ Object 



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# File 'lib/roby/test/distributed.rb', line 143

def setup_connection
		assert(remote_neighbour = local.neighbours.find { true })
		Peer.initiate_connection(local, remote_neighbour) do |@remote_peer| end

		while !remote_peer
 process_events
		end
		assert(remote.send_local_peer(:connected?))
end

#start_peers(detached_control = false) ⇒ Object

Start a central discovery service, a remote connectionspace and a local connection space. It yields the remote connection space *in the forked child* if a block is given.



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# File 'lib/roby/test/distributed.rb', line 94

def start_peers(detached_control = false)
		DRb.stop_service
		remote_process do
 DRb.start_service DISCOVERY_SERVER, Rinda::TupleSpace.new
		end

		if detached_control && Roby.control.running?
 begin
			Roby.control.quit
			Roby.control.join
 rescue ControlQuitError
 end
		end

		remote_process do
 central_tuplespace = DRbObject.new_with_uri(DISCOVERY_SERVER)
 cs = ConnectionSpace.new :ring_discovery => false, 
			:discovery_tuplespace => central_tuplespace, :name => "remote" do |remote|
  getter = Class.new { def get; DRbObject.new(Distributed.state) end }.new
  DRb.start_service REMOTE_SERVER, getter
			end
 cs.extend RemotePeerSupport
 cs.testcase = self

 def cs.start_control_thread
			Control.event_processing << Distributed.state.method(:start_neighbour_discovery)
			Roby.control.run :detach => true
 end

 Distributed.state = cs
 yield(cs) if block_given?
		end

		DRb.start_service LOCAL_SERVER
		@central_tuplespace = DRbObject.new_with_uri(DISCOVERY_SERVER)
		@remote  = DRbObject.new_with_uri(REMOTE_SERVER).get
		@local   = ConnectionSpace.new :ring_discovery => false, 
 :discovery_tuplespace => central_tuplespace, :name => 'local', 
 :plan => plan

		Distributed.state = local

		if detached_control
 remote.start_control_thread
 Control.event_processing << Distributed.state.method(:start_neighbour_discovery)
 Roby.control.run :detach => true
		end
end

#subscribe_task(match) ⇒ Object 



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# File 'lib/roby/test/distributed.rb', line 193

def subscribe_task(match)
		remote_task(match) do |task|
 remote_peer.subscribe(task)
 task
		end
end

#teardown ⇒ Object 



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# File 'lib/roby/test/distributed.rb', line 24

def teardown
		begin
 if remote && remote.respond_to?(:cleanup)
			remote.cleanup
 end
		rescue DRb::DRbConnError
		end

		super

		unless Distributed.peers.empty?
 Roby.warn "  still referencing #{Distributed.peers.keys}"
 Distributed.peers.clear
		end

		# This one is a nasty one ...
		# The main plan is the only thing which remains. If we do not reset
		# the cached drb_object, it will be kept in the next test and the forked
		# child will therefore use it ... And it will fail
		plan.instance_eval do
 @__droby_remote_id__ = nil
 @__droby_marshalled__ = nil
		end

		if Distributed.state
 Distributed.state.quit
		end

		timings[:end] = Time.now

rescue Exception
		STDERR.puts "failing teardown: #{$!.full_message}"
		raise

ensure
		Distributed.logger.level = @old_distributed_logger_level
end