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diff --git a/src/server/Engine.cpp b/src/server/Engine.cpp
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+/* This file is part of Ingen.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ *
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <cassert>
+#include <sys/mman.h>
+#include <unistd.h>
+#include "raul/log.hpp"
+#include "raul/Deletable.hpp"
+#include "raul/Maid.hpp"
+#include "raul/SharedPtr.hpp"
+#include "lv2/lv2plug.in/ns/ext/uri-map/uri-map.h"
+#include "ingen/EventType.hpp"
+#include "events/CreatePatch.hpp"
+#include "events/CreatePort.hpp"
+#include "shared/World.hpp"
+#include "shared/LV2Features.hpp"
+#include "shared/LV2URIMap.hpp"
+#include "shared/Store.hpp"
+#include "BufferFactory.hpp"
+#include "ClientBroadcaster.hpp"
+#include "ControlBindings.hpp"
+#include "Driver.hpp"
+#include "Engine.hpp"
+#include "EngineStore.hpp"
+#include "Event.hpp"
+#include "EventSource.hpp"
+#include "MessageContext.hpp"
+#include "NodeFactory.hpp"
+#include "PatchImpl.hpp"
+#include "PostProcessor.hpp"
+#include "ProcessContext.hpp"
+#include "QueuedEngineInterface.hpp"
+#include "ThreadManager.hpp"
+
+using namespace std;
+using namespace Raul;
+
+namespace Ingen {
+namespace Server {
+
+bool ThreadManager::single_threaded = true;
+
+Engine::Engine(Ingen::Shared::World* a_world)
+ : _world(a_world)
+ , _broadcaster(new ClientBroadcaster())
+ , _buffer_factory(new BufferFactory(*this, a_world->uris()))
+ , _control_bindings(new ControlBindings(*this))
+ , _maid(new Raul::Maid(event_queue_size()))
+ , _message_context(new MessageContext(*this))
+ , _node_factory(new NodeFactory(a_world))
+ , _post_processor(new PostProcessor(*this, event_queue_size()))
+{
+ if (a_world->store()) {
+ assert(PtrCast<EngineStore>(a_world->store()));
+ } else {
+ a_world->set_store(SharedPtr<Ingen::Shared::Store>(new EngineStore()));
+ }
+}
+
+Engine::~Engine()
+{
+ deactivate();
+
+ SharedPtr<EngineStore> store = engine_store();
+ if (store)
+ for (EngineStore::iterator i = store->begin(); i != store->end(); ++i)
+ if ( ! PtrCast<GraphObjectImpl>(i->second)->parent() )
+ i->second.reset();
+
+ delete _maid;
+ delete _post_processor;
+ delete _node_factory;
+ delete _broadcaster;
+
+ munlockall();
+}
+
+SharedPtr<EngineStore>
+Engine::engine_store() const
+{
+ return PtrCast<EngineStore>(_world->store());
+}
+
+size_t
+Engine::event_queue_size() const
+{
+ return world()->conf()->option("queue-size").get_int32();
+}
+
+void
+Engine::quit()
+{
+ _quit_flag = true;
+}
+
+bool
+Engine::main_iteration()
+{
+ _post_processor->process();
+ _maid->cleanup();
+ return !_quit_flag;
+}
+
+void
+Engine::add_event_source(SharedPtr<EventSource> source)
+{
+ _event_sources.insert(source);
+}
+
+void
+Engine::set_driver(SharedPtr<Driver> driver)
+{
+ _driver = driver;
+}
+
+static void
+execute_and_delete_event(ProcessContext& context, QueuedEvent* ev)
+{
+ ev->pre_process();
+ ev->execute(context);
+ ev->post_process();
+ delete ev;
+}
+
+bool
+Engine::activate()
+{
+ assert(_driver);
+ ThreadManager::single_threaded = true;
+
+ _buffer_factory->set_block_length(_driver->block_length());
+
+ _message_context->Thread::start();
+
+ const Ingen::Shared::LV2URIMap& uris = *world()->uris().get();
+
+ // Create root patch
+ PatchImpl* root_patch = _driver->root_patch();
+ if (!root_patch) {
+ root_patch = new PatchImpl(*this, "root", 1, NULL, _driver->sample_rate(), 1);
+ root_patch->set_property(uris.rdf_type,
+ Resource::Property(uris.ingen_Patch, Resource::INTERNAL));
+ root_patch->set_property(uris.ingen_polyphony,
+ Resource::Property(Raul::Atom(int32_t(1)),
+ Resource::INTERNAL));
+ root_patch->activate(*_buffer_factory);
+ _world->store()->add(root_patch);
+ root_patch->compiled_patch(root_patch->compile());
+ _driver->set_root_patch(root_patch);
+
+ ProcessContext context(*this);
+
+ Resource::Properties control_properties;
+ control_properties.insert(make_pair(uris.lv2_name, "Control"));
+ control_properties.insert(make_pair(uris.rdf_type, uris.ev_EventPort));
+
+ // Add control input
+ Resource::Properties in_properties(control_properties);
+ in_properties.insert(make_pair(uris.rdf_type, uris.lv2_InputPort));
+ in_properties.insert(make_pair(uris.lv2_index, 0));
+ in_properties.insert(make_pair(uris.ingenui_canvas_x,
+ Resource::Property(32.0f, Resource::EXTERNAL)));
+ in_properties.insert(make_pair(uris.ingenui_canvas_y,
+ Resource::Property(32.0f, Resource::EXTERNAL)));
+
+ execute_and_delete_event(context, new Events::CreatePort(
+ *this, SharedPtr<Request>(), 0,
+ "/control_in", uris.ev_EventPort, false, in_properties));
+
+ // Add control out
+ Resource::Properties out_properties(control_properties);
+ out_properties.insert(make_pair(uris.rdf_type, uris.lv2_OutputPort));
+ out_properties.insert(make_pair(uris.lv2_index, 1));
+ out_properties.insert(make_pair(uris.ingenui_canvas_x,
+ Resource::Property(128.0f, Resource::EXTERNAL)));
+ out_properties.insert(make_pair(uris.ingenui_canvas_y,
+ Resource::Property(32.0f, Resource::EXTERNAL)));
+
+ execute_and_delete_event(context, new Events::CreatePort(
+ *this, SharedPtr<Request>(), 0,
+ "/control_out", uris.ev_EventPort, true, out_properties));
+ }
+
+ _driver->activate();
+ root_patch->enable();
+
+ ThreadManager::single_threaded = false;
+
+ return true;
+}
+
+void
+Engine::deactivate()
+{
+ _driver->deactivate();
+ _driver->root_patch()->deactivate();
+
+ ThreadManager::single_threaded = true;
+}
+
+void
+Engine::process_events(ProcessContext& context)
+{
+ ThreadManager::assert_thread(THREAD_PROCESS);
+
+ for (EventSources::iterator i = _event_sources.begin(); i != _event_sources.end(); ++i)
+ (*i)->process(*_post_processor, context);
+}
+
+} // namespace Server
+} // namespace Ingen