MXS-1929: Take ResultSet into use

Replaced the previous RESULTSET with the new implementation. As the new
ResultSet doesn't have a JSON streaming capability, the MaxInfo JSON
interface has been removed. This should not be a big problem as the REST
API offers the same information in a more secure and structured way.

server/core/internal/modules.hh

@@ -21,4 +21,4 @@
  *
  * @return A Result set
  */
-ResultSet *moduleGetList();
+std::unique_ptr<ResultSet> moduleGetList();

server/core/internal/monitor.hh

@@ -20,4 +20,4 @@
 
 #include <maxscale/resultset.hh>
 
-ResultSet *monitor_get_list();
+std::unique_ptr<ResultSet> monitor_get_list();

server/core/internal/poll.hh

@@ -13,15 +13,13 @@
  */
 
 /**
- * @file core/maxscale/poll.h - The private poll interface
+ * The private poll header
  */
 
+#include <maxscale/cppdefs.hh>
 #include <maxscale/poll.h>
-
 #include <maxscale/resultset.hh>
 
-MXS_BEGIN_DECLS
-
 struct mxs_worker;
 
 #define MAX_EVENTS 1000
@@ -42,6 +40,4 @@ void            dShowThreads(DCB *dcb);
 void            dShowEventQ(DCB *dcb);
 void            dShowEventStats(DCB *dcb);
 
-ResultSet       *eventTimesGetList();
-
-MXS_END_DECLS
+std::unique_ptr<ResultSet> eventTimesGetList();

server/core/internal/server.hh

@@ -18,4 +18,4 @@
 
 #include <maxscale/resultset.hh>
 
-ResultSet* serverGetList();
+std::unique_ptr<ResultSet> serverGetList();

server/core/internal/service.hh

@@ -353,5 +353,5 @@ json_t* service_relations_to_server(const SERVER* server, const char* host);
  */
 json_t* service_relations_to_filter(const MXS_FILTER_DEF* filter, const char* host);
 
-ResultSet* serviceGetList(void);
-ResultSet* serviceGetListenerList(void);
+std::unique_ptr<ResultSet> serviceGetList(void);
+std::unique_ptr<ResultSet> serviceGetListenerList(void);

server/core/internal/session.hh

@@ -40,4 +40,4 @@ struct RegistryTraits<MXS_SESSION>
 
 }
 
-ResultSet *sessionGetList();
+std::unique_ptr<ResultSet> sessionGetList();