--- libaitrpc/inc/aitrpc.h	2015/01/18 00:03:01	1.25.2.3
+++ libaitrpc/inc/aitrpc.h	2015/01/27 23:50:46	1.26.2.1
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: aitrpc.h,v 1.25.2.3 2015/01/18 00:03:01 misho Exp $
+* $Id: aitrpc.h,v 1.26.2.1 2015/01/27 23:50:46 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -62,7 +62,7 @@ SUCH DAMAGE.
 #include <aitsched.h>
 
 
-#define RPC_VERSION		7
+#define RPC_VERSION		8
 #define RPC_DEFPORT		2611
 
 /* Additional ELWIX RPC supporting protocols */
@@ -83,6 +83,11 @@ SUCH DAMAGE.
 #define RPC_REPLY		0x0
 #define RPC_NOREPLY		0x1
 
+/* RPC call I/O direction */
+
+#define RPC_REQ			0x0
+#define RPC_ACK			0x1
+
 /* RPC builtin registed calls */
 
 #define CALL_TAG_MAX		65535
@@ -154,7 +159,8 @@ struct tagRPCCall {
 	};
 
 	uint16_t	call_tag;
-	uint16_t	call_argc;
+	uint8_t		call_io;
+	uint8_t		call_argc;
 	ait_val_t	call_argv[0];
 } __packed;			/* size == 20 bytes */
 #define RPC_CHK_NOREPLY(x)	(ntohl((u_long) (x)->call_req.flags) & RPC_NOREPLY)
@@ -665,7 +671,7 @@ int rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_se
  *
  * @pkt = Packet buffer
  * @sess = RPC session info, if =NULL don't check session
- * @tag = Function tag
+ * @tag = Function tag, if =CALL_TAG_MAX don't check tag
  * @vars = Function argument array of values, may be NULL
  * @nocrc = Without CRC calculation
  * return: -1 error or != -1 return value from function
@@ -735,6 +741,24 @@ rpc_cli_t *rpc_cli_openClient2(u_char InstID, int netB
  * return: none
  */
 void rpc_cli_closeClient2(rpc_cli_t ** __restrict cli);
+
+
+/*
+ * rpc_cli_openClientExt() - Connect to pipe RPC Server
+ *
+ * @InstID = InstID for RPC session request
+ * @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet)
+ * @fd = File descriptor
+ * return: NULL == error or !=NULL connection to RPC server established
+ */
+rpc_cli_t *rpc_cli_openClientExt(u_char InstID, int netBuf, int fd);
+/*
+ * rpc_cli_closeClientExt() - Close pipe connection to RPC server and free resources
+ *
+ * @cli = RPC Client session
+ * return: none
+ */
+void rpc_cli_closeClientExt(rpc_cli_t ** __restrict cli);
 
 
 #endif