attempt a restart on a connection error (bug #3628)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/v1-0@5090 65c4cc65-6c06-0410-ace0-fbb531ad65f3

CHANGES

@@ -43,6 +43,8 @@ Asterisk 1.0.6
     -- If the server you were using was going down, it had the potential to bring your asterisk
        server down with it. Extra stuff has been added so as to bring in more error/connection
        checking.
+ -- cdr_pgsql:
+    -- This will now attempt to reconnect after a connection problem.
  -- internals
     -- Behavior was changed for 'show codec <number>' to make it more intuitive. (kshumard)
     -- DNS failures and asterisk do not get along too well, this is not totally the case anymore.

cdr/cdr_pgsql.c

@@ -127,6 +127,19 @@ static int pgsql_log(struct ast_cdr *cdr)
                         pgerror = PQresultErrorMessage(result);
 			ast_log(LOG_ERROR,"cdr_pgsql: Failed to insert call detail record into database!\n");
                         ast_log(LOG_ERROR,"cdr_pgsql: Reason: %s\n", pgerror);
+			ast_log(LOG_ERROR,"cdr_pgsql: Connection may have been lost... attempting to reconnect.\n");
+			PQreset(conn);
+			if (PQstatus(conn) == CONNECTION_OK) {
+				ast_log(LOG_ERROR, "cdr_pgsql: Connection reestablished.\n");
+				connected = 1;
+				result = PQexec(conn, sqlcmd);
+				if ( PQresultStatus(result) != PGRES_COMMAND_OK)
+				{
+					pgerror = PQresultErrorMessage(result);
+					ast_log(LOG_ERROR,"cdr_pgsql: HARD ERROR!  Attempted reconnection failed.  DROPPING CALL RECORD!\n");
+					ast_log(LOG_ERROR,"cdr_pgsql: Reason: %s\n", pgerror);
+				}
+			}
 			ast_mutex_unlock(&pgsql_lock);
 			return -1;
 		}
@@ -287,7 +300,7 @@ static int process_my_load_module(struct ast_config *cfg)
 		connected = 1;
 	} else {
                 pgerror = PQerrorMessage(conn);
-		ast_log(LOG_ERROR, "cdr_pgsql: Unable to connect to database server %s.  Calls will not be logged!\n", pghostname);
+		ast_log(LOG_ERROR, "cdr_pgsql: Unable to connect to database server %s.  CALLS WILL NOT BE LOGGED!!\n", pghostname);
                 ast_log(LOG_ERROR, "cdr_pgsql: Reason: %s\n", pgerror);
 		connected = 0;
 	}