Make repmgrd survive to the failover

To do this it needs to reconnect to the new master

repmgrd.c

@@ -81,6 +81,8 @@ bool	verbose = false;
 bool	monitoring_history = false;
 char	repmgr_schema[MAXLEN];
 
+bool	failover_done = false;
+
 /*
  * should initialize with {0} to be ANSI complaint ? but this raises
  * error with gcc -Wall
@@ -203,6 +205,16 @@ main(int argc, char **argv)
 		exit(ERR_BAD_CONFIG);
 	}
 
+
+	/*
+	 * MAIN LOOP
+	 * This loops cicles once per failover and at startup	
+	 * Requisites:
+	 *   - myLocalConn needs to be already setted with an active connection
+	 *   - no master connection
+ 	 */ 
+	do
+	{
 		/*
 		 * Set my server mode, establish a connection to primary
 		 * and start monitor
@@ -233,13 +245,15 @@ main(int argc, char **argv)
 				}
 	
 				log_info(_("%s Starting continuous primary connection check\n"), progname);
+	
 				/* Check that primary is still alive, and standbies are sending info */
+	
 				/*
 				 * Every SLEEP_MONITOR seconds, do master checks
 				 * XXX
 				 * Check that standbies are sending info
 				 */
-		for (;;)
+				do
 				{
 					if (CheckPrimaryConnection())
 					{
@@ -254,7 +268,7 @@ main(int argc, char **argv)
 						/* XXX
 						 * May we do something more verbose ?
 						 */
-				exit (1);
+						exit(1);
 					}
 	
 					if (got_SIGHUP)
@@ -269,7 +283,7 @@ main(int argc, char **argv)
 						}
 						got_SIGHUP = false;
 					}
-		}
+				} while (!failover_done);
 				break;
 			case WITNESS_MODE:
 			case STANDBY_MODE:
@@ -307,7 +321,7 @@ main(int argc, char **argv)
 					log_info(_("%s Starting continuous standby node monitoring\n"), progname);
 				}
 	
-		for (;;)
+				do
 				{
 					if (myLocalMode == WITNESS_MODE)
 						WitnessMonitor();
@@ -326,12 +340,16 @@ main(int argc, char **argv)
 						}
 						got_SIGHUP = false;
 					}
-		}
+				} while (!failover_done);
 				break;
 			default:
 				log_err(_("%s: Unrecognized mode for node %d\n"), progname, local_options.node);
 		}
 
+		failover_done = false;
+
+	} while (true);
+
 	/* Prevent a double-free */
 	if (primaryConn == myLocalConn)
 		myLocalConn = NULL;
@@ -481,6 +499,7 @@ StandbyMonitor(void)
 			 * a new primaryConn
 			 */
 			do_failover();
+			return;
 		}
 	}
 
@@ -901,6 +920,9 @@ do_failover(void)
 		exit(ERR_FAILOVER_FAIL);
 	}
 
+	/* to force it to re-calculate mode and master node */
+	failover_done = true;
+
 	/* and reconnect to the local database */
 	myLocalConn = establishDBConnection(local_options.conninfo, true);
 }
@@ -1089,6 +1111,7 @@ static void
 handle_sigint(SIGNAL_ARGS)
 {
 	CloseConnections();
+	logger_shutdown();
 	exit(1);
 }