Use a queryrunner to execute queries.

The queryrunner is responsible for running queries and keeping them
up to date. This is required for self-updating queries.

To get this to work properly the ResultProvider/emitter had to be fixed.
The emitter now only lives as long as the client holds a reference to
it, allowing the provider to detect when it is no longer necessary to
keep the query alive (because noone is listening).

In the process various lifetime issues have been fixed, that we're
caused by lambdas capturing smartpointers, that then extended the
lifetime of the associated objects unpredictably.

1 files changed, 20 insertions, 0 deletions

diff --git a/common/facade.cpp b/common/facade.cpp
new file mode 100644
index 0000000..e51b32a
--- /dev/null
+++ b/common/facade.cpp
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2015 Christian Mollekopf <chrigi_1@fastmail.fm>
+ *
+ *   This program 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.
+ *
+ *   This program 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 more 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 Street, Fifth Floor, Boston, MA  02110-1301  USA.
+ */
+
+#include "facade.h"