Added support for ping RPC.

src/common/slurm_protocol_defs.h

@@ -109,6 +109,7 @@ typedef enum {
 	REQUEST_SHUTDOWN,
 	REQUEST_SHUTDOWN_IMMEDIATE,
 	RESPONSE_SHUTDOWN,
+	REQUEST_PING,
 
 	REQUEST_BUILD_INFO = 2001,
 	RESPONSE_BUILD_INFO,
@@ -145,7 +146,6 @@ typedef enum {
 	RESPONSE_IMMEDIATE_RESOURCE_ALLOCATION,
 	REQUEST_JOB_WILL_RUN,
 	RESPONSE_JOB_WILL_RUN,
-//      MESSAGE_REVOKE_JOB_CREDENTIAL,
 	REQUEST_REVOKE_JOB_CREDENTIAL,
 	REQUEST_ALLOCATION_AND_RUN_JOB_STEP,
 	RESPONSE_ALLOCATION_AND_RUN_JOB_STEP,

src/common/slurm_protocol_pack.c

@@ -140,6 +140,7 @@ int pack_msg ( slurm_msg_t const * msg , char ** buffer , uint32_t * buf_len )
 		case REQUEST_NODE_REGISTRATION_STATUS :
 		case REQUEST_RECONFIGURE :
 		case REQUEST_SHUTDOWN_IMMEDIATE :
+		case REQUEST_PING :
 			/* Message contains no body/information */
 			break ;
 		case REQUEST_SHUTDOWN :
@@ -290,6 +291,7 @@ int unpack_msg ( slurm_msg_t * msg , char ** buffer , uint32_t * buf_len )
 		case REQUEST_NODE_REGISTRATION_STATUS :
 		case REQUEST_RECONFIGURE :
 		case REQUEST_SHUTDOWN_IMMEDIATE :
+		case REQUEST_PING :
 			/* Message contains no body/information */
 			break ;
 		case REQUEST_SHUTDOWN :