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-rw-r--r--src/server/EventWriter.cpp188
1 files changed, 188 insertions, 0 deletions
diff --git a/src/server/EventWriter.cpp b/src/server/EventWriter.cpp
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+++ b/src/server/EventWriter.cpp
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+/*
+ This file is part of Ingen.
+ Copyright 2007-2012 David Robillard <http://drobilla.net/>
+
+ Ingen is free software: you can redistribute it and/or modify it under the
+ terms of the GNU Affero General Public License as published by the Free
+ Software Foundation, either version 3 of the License, or 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 Affero General Public License for details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with Ingen. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string>
+
+#include "raul/log.hpp"
+
+#include "ingen/shared/URIs.hpp"
+
+#include "ClientBroadcaster.hpp"
+#include "Driver.hpp"
+#include "Engine.hpp"
+#include "EventQueue.hpp"
+#include "EventWriter.hpp"
+#include "events.hpp"
+
+#define LOG(s) s << "[EventWriter] "
+
+using namespace std;
+using namespace Raul;
+
+namespace Ingen {
+namespace Server {
+
+EventWriter::EventWriter(Engine& engine, EventSink& sink)
+ : _request_client(NULL)
+ , _sink(sink)
+ , _request_id(-1)
+ , _engine(engine)
+ , _in_bundle(false)
+{
+}
+
+EventWriter::~EventWriter()
+{
+}
+
+SampleCount
+EventWriter::now() const
+{
+ // Exactly one cycle latency (some could run ASAP if we get lucky, but not always, and a slight
+ // constant latency is far better than jittery lower (average) latency
+ if (_engine.driver())
+ return _engine.driver()->frame_time() + _engine.driver()->block_length();
+ else
+ return 0;
+}
+
+void
+EventWriter::set_response_id(int32_t id)
+{
+ if (!_request_client) { // Kludge
+ _request_client = _engine.broadcaster()->client(
+ "http://drobilla.net/ns/ingen#internal");
+ }
+ _request_id = id;
+}
+
+/* *** ServerInterface implementation below here *** */
+
+// Bundle commands
+
+void
+EventWriter::bundle_begin()
+{
+ _in_bundle = true;
+}
+
+void
+EventWriter::bundle_end()
+{
+ _in_bundle = false;
+}
+
+// Object commands
+
+void
+EventWriter::put(const URI& uri,
+ const Resource::Properties& properties,
+ const Resource::Graph ctx)
+{
+ _sink.event(new Events::SetMetadata(_engine, _request_client, _request_id, now(), true, ctx, uri, properties));
+}
+
+void
+EventWriter::delta(const URI& uri,
+ const Resource::Properties& remove,
+ const Resource::Properties& add)
+{
+ _sink.event(new Events::SetMetadata(_engine, _request_client, _request_id, now(), false, Resource::DEFAULT, uri, add, remove));
+}
+
+void
+EventWriter::move(const Path& old_path,
+ const Path& new_path)
+{
+ _sink.event(new Events::Move(_engine, _request_client, _request_id, now(), old_path, new_path));
+}
+
+void
+EventWriter::del(const URI& uri)
+{
+ if (uri == "ingen:engine") {
+ if (_request_client) {
+ _request_client->response(_request_id, SUCCESS);
+ }
+ _engine.quit();
+ } else {
+ _sink.event(new Events::Delete(_engine, _request_client, _request_id, now(), uri));
+ }
+}
+
+void
+EventWriter::connect(const Path& tail_path,
+ const Path& head_path)
+{
+ _sink.event(new Events::Connect(_engine, _request_client, _request_id, now(), tail_path, head_path));
+
+}
+
+void
+EventWriter::disconnect(const Path& src,
+ const Path& dst)
+{
+ if (!Path::is_path(src) && !Path::is_path(dst)) {
+ LOG(Raul::error) << "Bad disconnect request " << src
+ << " => " << dst << std::endl;
+ return;
+ }
+
+ _sink.event(new Events::Disconnect(_engine, _request_client, _request_id, now(),
+ Path(src.str()), Path(dst.str())));
+}
+
+void
+EventWriter::disconnect_all(const Path& patch_path,
+ const Path& path)
+{
+ _sink.event(new Events::DisconnectAll(_engine, _request_client, _request_id, now(), patch_path, path));
+}
+
+void
+EventWriter::set_property(const URI& uri,
+ const URI& predicate,
+ const Atom& value)
+{
+ if (uri == "ingen:engine" && predicate == "ingen:enabled"
+ && value.type() == _engine.world()->forge().Bool) {
+ if (value.get_bool()) {
+ _engine.activate();
+ _sink.event(new Events::Ping(_engine, _request_client, _request_id, now()));
+ } else {
+ _sink.event(new Events::Deactivate(_engine, _request_client, _request_id, now()));
+ }
+ } else {
+ Resource::Properties remove;
+ remove.insert(make_pair(predicate, _engine.world()->uris()->wildcard));
+ Resource::Properties add;
+ add.insert(make_pair(predicate, value));
+ _sink.event(new Events::SetMetadata(
+ _engine, _request_client, _request_id, now(), false, Resource::DEFAULT,
+ uri, add, remove));
+ }
+}
+
+// Requests //
+
+void
+EventWriter::get(const URI& uri)
+{
+ _sink.event(new Events::Get(_engine, _request_client, _request_id, now(), uri));
+}
+
+} // namespace Server
+} // namespace Ingen