Better behaviour if config fails to load.

Create a default config if any exception is thrown by ::read, and
tell the UI so that it can pop up a message to say what has happened.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/lib/config.h b/src/lib/config.h
index feaac8390..61c6bfa69 100644
--- a/src/lib/config.h
+++ b/src/lib/config.h
@@ -483,6 +483,10 @@ public:
 
 	void changed (Property p = OTHER);
 	boost::signals2::signal<void (Property)> Changed;
+	/** Emitted if ::read() failed on an existing Config file.  There is nothing
+	    a listener can do about it: this is just for information.
+	*/
+	static boost::signals2::signal<void ()> FailedToLoad;
 
 	void write () const;