From dc5c579778d8b7b6f113c48d202f89c172abd591 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 23 May 2015 03:20:40 +0000
Subject: Prevent concurrent Sord access.

git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@5683 a436a847-0d15-0410-975c-d299462d15a1
---
 src/gui/GraphCanvas.cpp    |  4 ++++
 src/gui/ThreadedLoader.cpp | 25 +++++++++++++++++++------
 src/gui/ThreadedLoader.hpp |  5 +++++
 3 files changed, 28 insertions(+), 6 deletions(-)

(limited to 'src/gui')

diff --git a/src/gui/GraphCanvas.cpp b/src/gui/GraphCanvas.cpp
index ddbebfe7..0725aa67 100644
--- a/src/gui/GraphCanvas.cpp
+++ b/src/gui/GraphCanvas.cpp
@@ -598,6 +598,8 @@ serialise_arc(GanvEdge* arc, void* data)
 void
 GraphCanvas::copy_selection()
 {
+	std::lock_guard<std::mutex> lock(_app.world()->rdf_mutex());
+
 	Serialiser serialiser(*_app.world());
 	serialiser.start_to_string(_graph->path(), _graph->base_uri());
 
@@ -614,6 +616,8 @@ GraphCanvas::paste()
 {
 	typedef Node::Properties::const_iterator PropIter;
 
+	std::lock_guard<std::mutex> lock(_app.world()->rdf_mutex());
+
 	const Glib::ustring str    = Gtk::Clipboard::get()->wait_for_text();
 	SPtr<Parser>        parser = _app.loader()->parser();
 	const URIs&         uris   = _app.uris();
diff --git a/src/gui/ThreadedLoader.cpp b/src/gui/ThreadedLoader.cpp
index 8b7797cb..98314b66 100644
--- a/src/gui/ThreadedLoader.cpp
+++ b/src/gui/ThreadedLoader.cpp
@@ -77,8 +77,6 @@ ThreadedLoader::load_graph(bool                       merge,
 {
 	_mutex.lock();
 
-	Ingen::World* world = _app.world();
-
 	Glib::ustring engine_base = "";
 	if (engine_parent) {
 		if (merge)
@@ -89,10 +87,7 @@ ThreadedLoader::load_graph(bool                       merge,
 
 	_events.push_back(
 		sigc::hide_return(
-			sigc::bind(sigc::mem_fun(world->parser().get(),
-			                         &Ingen::Parser::parse_file),
-			           _app.world(),
-			           _app.world()->interface().get(),
+			sigc::bind(sigc::mem_fun(this, &ThreadedLoader::load_graph_event),
 			           document_uri,
 			           engine_parent,
 			           engine_symbol,
@@ -102,6 +97,22 @@ ThreadedLoader::load_graph(bool                       merge,
 	_sem.post();
 }
 
+void
+ThreadedLoader::load_graph_event(const Glib::ustring&       document_uri,
+                                 optional<Raul::Path>       engine_parent,
+                                 optional<Raul::Symbol>     engine_symbol,
+                                 optional<Node::Properties> engine_data)
+{
+	std::lock_guard<std::mutex> lock(_app.world()->rdf_mutex());
+
+	_app.world()->parser()->parse_file(_app.world(),
+	                                   _app.world()->interface().get(),
+	                                   document_uri,
+	                                   engine_parent,
+	                                   engine_symbol,
+	                                   engine_data);
+}
+
 void
 ThreadedLoader::save_graph(SPtr<const Client::GraphModel> model,
                            const string&                  filename)
@@ -122,6 +133,8 @@ ThreadedLoader::save_graph_event(SPtr<const Client::GraphModel> model,
                                  const string&                  filename)
 {
 	if (_app.serialiser()) {
+		std::lock_guard<std::mutex> lock(_app.world()->rdf_mutex());
+
 		if (filename.find(".ingen") != string::npos) {
 			_app.serialiser()->write_bundle(model, filename);
 		} else {
diff --git a/src/gui/ThreadedLoader.hpp b/src/gui/ThreadedLoader.hpp
index 87f1971b..7870761a 100644
--- a/src/gui/ThreadedLoader.hpp
+++ b/src/gui/ThreadedLoader.hpp
@@ -65,6 +65,11 @@ public:
 	SPtr<Parser> parser();
 
 private:
+	void load_graph_event(const Glib::ustring&              document_uri,
+	                      boost::optional<Raul::Path>       engine_parent,
+	                      boost::optional<Raul::Symbol>     engine_symbol,
+	                      boost::optional<Node::Properties> engine_data);
+
 	void save_graph_event(SPtr<const Client::GraphModel> model,
 	                      const std::string&             filename);
 
-- 
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