MXS-2271 Move journal_max_age inside settings container

include/maxscale/monitor.hh

@@ -288,6 +288,8 @@ public:
 
     void set_script_timeout(int value);
 
+    void monitor_set_journal_max_age(time_t value);
+
     /**
      * Create a list of running servers
      *
@@ -317,8 +319,6 @@ public:
     MXS_CONFIG_PARAMETER* parameters = nullptr;         /**< Configuration parameters */
     std::vector<MXS_MONITORED_SERVER*> m_servers;       /**< Monitored servers */
 
-    time_t      journal_max_age;    /**< Maximum age of journal file */
-
 protected:
 
     /**
@@ -350,6 +350,8 @@ protected:
         int         script_timeout {0};  /**< Timeout in seconds for the monitor scripts */
         uint64_t    events {0};          /**< Bitfield of events which trigger the script */
 
+        time_t      journal_max_age {0}; /**< Maximum age of journal file */
+
         SERVER::DiskSpaceLimits  disk_space_limits;     /**< Disk space thresholds */
         /**
          * How often should a disk space check be made at most, in milliseconds. Negative values imply
@@ -391,6 +393,8 @@ private:
      * @return Return value of the executed script or -1 on error.
      */
     int launch_command(MXS_MONITORED_SERVER* ptr, EXTERNCMD* cmd);
+
+    bool journal_is_stale();
 };
 
 /**