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-rw-r--r--src/gui/ThreadedLoader.cpp148
1 files changed, 148 insertions, 0 deletions
diff --git a/src/gui/ThreadedLoader.cpp b/src/gui/ThreadedLoader.cpp
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+/*
+ This file is part of Ingen.
+ Copyright 2007-2015 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 <cassert>
+#include <string>
+
+#include "ingen/Log.hpp"
+#include "ingen/Module.hpp"
+#include "ingen/World.hpp"
+#include "ingen/client/GraphModel.hpp"
+
+#include "App.hpp"
+#include "ThreadedLoader.hpp"
+
+using boost::optional;
+
+namespace ingen {
+namespace gui {
+
+ThreadedLoader::ThreadedLoader(App& app, SPtr<Interface> engine)
+ : _app(app)
+ , _sem(0)
+ , _engine(std::move(engine))
+ , _exit_flag(false)
+ , _thread(&ThreadedLoader::run, this)
+{
+ if (!parser()) {
+ app.log().warn("Parser unavailable, graph loading disabled\n");
+ }
+}
+
+ThreadedLoader::~ThreadedLoader()
+{
+ _exit_flag = true;
+ _sem.post();
+ if (_thread.joinable()) {
+ _thread.join();
+ }
+}
+
+SPtr<Parser>
+ThreadedLoader::parser()
+{
+ return _app.world()->parser();
+}
+
+void
+ThreadedLoader::run()
+{
+ while (_sem.wait() && !_exit_flag) {
+ std::lock_guard<std::mutex> lock(_mutex);
+ while (!_events.empty()) {
+ _events.front()();
+ _events.pop_front();
+ }
+ }
+}
+
+void
+ThreadedLoader::load_graph(bool merge,
+ const FilePath& file_path,
+ optional<Raul::Path> engine_parent,
+ optional<Raul::Symbol> engine_symbol,
+ optional<Properties> engine_data)
+{
+ std::lock_guard<std::mutex> lock(_mutex);
+
+ Glib::ustring engine_base = "";
+ if (engine_parent) {
+ if (merge) {
+ engine_base = engine_parent.get();
+ } else {
+ engine_base = engine_parent.get().base();
+ }
+ }
+
+ _events.push_back(sigc::hide_return(
+ sigc::bind(sigc::mem_fun(this, &ThreadedLoader::load_graph_event),
+ file_path,
+ engine_parent,
+ engine_symbol,
+ engine_data)));
+
+ _sem.post();
+}
+
+void
+ThreadedLoader::load_graph_event(const FilePath& file_path,
+ optional<Raul::Path> engine_parent,
+ optional<Raul::Symbol> engine_symbol,
+ optional<Properties> engine_data)
+{
+ std::lock_guard<std::mutex> lock(_app.world()->rdf_mutex());
+
+ _app.world()->parser()->parse_file(_app.world(),
+ _app.world()->interface().get(),
+ file_path,
+ engine_parent,
+ engine_symbol,
+ engine_data);
+}
+
+void
+ThreadedLoader::save_graph(SPtr<const client::GraphModel> model, const URI& uri)
+{
+ std::lock_guard<std::mutex> lock(_mutex);
+
+ _events.push_back(sigc::hide_return(
+ sigc::bind(sigc::mem_fun(this, &ThreadedLoader::save_graph_event),
+ model,
+ uri)));
+
+ _sem.post();
+}
+
+void
+ThreadedLoader::save_graph_event(SPtr<const client::GraphModel> model,
+ const URI& uri)
+{
+ assert(uri.scheme() == "file");
+ if (_app.serialiser()) {
+ std::lock_guard<std::mutex> lock(_app.world()->rdf_mutex());
+
+ if (uri.string().find(".ingen") != std::string::npos) {
+ _app.serialiser()->write_bundle(model, uri);
+ } else {
+ _app.serialiser()->start_to_file(model->path(), std::string(uri.path()));
+ _app.serialiser()->serialise(model);
+ _app.serialiser()->finish();
+ }
+ }
+}
+
+} // namespace gui
+} // namespace ingen