Add new function slurm_ping().

slurm/slurm.h.in

@@ -832,9 +832,16 @@ extern int slurm_update_partition PARAMS(( update_part_msg_t * part_msg ));
 
 
 /*****************************************************************************\
- *	SLURM RECONFIGURE/SHUTDOWN FUNCTIONS
+ *	SLURM PING/RECONFIGURE/SHUTDOWN FUNCTIONS
 \*****************************************************************************/
 
+/*
+ * slurm_ping - issue RPC to have Slurm controller (slurmctld)
+ * IN controller - 1==primary controller, 2==secondary controller
+ * RET 0 or a slurm error code
+ */
+extern int slurm_ping PARAMS(( int primary ));
+
 /*
  * slurm_reconfigure - issue RPC to have Slurm controller (slurmctld)
  *	reload its configuration file 

src/api/reconfigure.c

@@ -109,6 +109,31 @@ slurm_reconfigure ( void )
         return SLURM_PROTOCOL_SUCCESS ;
 }
 
+/*
+ * slurm_ping - issue RPC to have Slurm controller (slurmctld)
+ * IN controller - 1==primary controller, 2==secondary controller
+ * RET 0 or a slurm error code
+ */
+int
+slurm_ping (int primary)
+{
+	int rc ;
+	slurm_msg_t request_msg ;
+
+	request_msg . msg_type = REQUEST_PING ;
+
+	if (primary == 1)
+		rc = _send_message_controller ( PRIMARY_CONTROLLER,
+						&request_msg );
+	else if (primary == 2)
+		rc = _send_message_controller ( SECONDARY_CONTROLLER,
+						&request_msg );
+	else
+		rc = SLURM_ERROR;
+
+	return rc;
+}
+
 /*
  * slurm_shutdown - issue RPC to have Slurm controller (slurmctld)
  *	cease operations, both the primary and backup controller