share MessageEngine instance

Share MessageEngine instance among clients in the
same process using a common socket (same url).

- add MessageEngineFactory class;
- extend std::unordered_map<> to use QString as
key;
- use std::shared_ptr<MessageEngine> to share
ownership among MessageEngineFactory and the
engine clients;
- force MessagEngine parent object null to avoid
life cycle dependency on a parent;
- protect insertions & deletions in m_calls map;

Also, not directly related but as part of testing
these changes: cleanup on voice to remove
superflous model sorting (there's just one voice
model for alexa voice agent).

Bug-AGL: SPEC-3112
Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
Change-Id: Ie2304453dc37723dac13d256286eeb85f84ca2ab

1 files changed, 1 insertions, 1 deletions

diff --git a/hvac/hvac.h b/hvac/hvac.h
index 81378e4..858fddf 100644
--- a/hvac/hvac.h
+++ b/hvac/hvac.h
@@ -45,7 +45,7 @@ class HVAC : public QObject
         void languageChanged(QString language);
 
     private:
-        MessageEngine *m_mloop;
+        std::shared_ptr<MessageEngine> m_mloop;
 
         int m_fanspeed;
         int m_temp_left_zone;