From 6a66bb69d8fdb43f0abb58fd74566461f0e96633 Mon Sep 17 00:00:00 2001
From: chip <chip>
Date: Mon, 13 Mar 2000 22:23:26 +0000
Subject: [PATCH 1/1] Conserve sockets: Reuse RPC transports.

---
 ChangeLog             |  7 ++++++-
 support/nfs/rpcmisc.c | 34 ++++++++++++++++++++++++++--------
 2 files changed, 32 insertions(+), 9 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 0daf977..753a073 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,9 @@
-2000-03-13 H.J. Lu <hjl@lucon.org>
+2000-03-12  Chip Salzenberg  <chip@valinux.com>
+	    Neil Brown  <neilb@cse.unsw.edu.au>
+
+	* support/nfs/rpcmisc.c (rpc_init): Share transports.
+
+Wed Mar  8 09:42:43 EST 2000 Neil Brown <neilb@cse.unsw.edu.au>
 
 	* etc/redhat/nfsd.init: Updated.
 
diff --git a/support/nfs/rpcmisc.c b/support/nfs/rpcmisc.c
index 7b182fd..b994fb1 100644
--- a/support/nfs/rpcmisc.c
+++ b/support/nfs/rpcmisc.c
@@ -65,35 +65,53 @@ rpc_init(char *name, int prog, int vers, void (*dispatch)(), int defport,
 	}
 
 	if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_DGRAM)) {
-		if (_rpcfdtype == 0 && defport != 0 &&
-		    ((sock = makesock(defport, IPPROTO_UDP, bufsiz)) < 0)) {
-			xlog(L_FATAL, "%s: could not make a UDP socket\n",
-					name);
+		static SVCXPRT *last_transp = NULL;
+ 
+		if (_rpcfdtype == 0 && defport != 0) {
+			if (last_transp && last_transp->xp_port == defport) {
+				transp = last_transp;
+				goto udp_transport;
+			}
+			if ((sock = makesock(defport, IPPROTO_UDP, bufsiz)) < 0) {
+				xlog(L_FATAL, "%s: cannot make a UDP socket\n",
+						name);
+			}
 		}
 		transp = svcudp_create(sock);
 		if (transp == NULL) {
 			xlog(L_FATAL, "cannot create udp service.");
 		}
+      udp_transport:
 		if (!svc_register(transp, prog, vers, dispatch, IPPROTO_UDP)) {
 			xlog(L_FATAL, "unable to register (%s, %d, udp).",
 					name, vers);
 		}
+		last_transp = transp;
 	}
 
 	if ((_rpcfdtype == 0) || (_rpcfdtype == SOCK_STREAM)) {
-		if (_rpcfdtype == 0 && defport != 0 &&
-		    ((sock = makesock(defport, IPPROTO_TCP, bufsiz)) < 0)) {
-			xlog(L_FATAL, "%s: could not make a TCP socket\n",
-					name);
+		static SVCXPRT *last_transp = NULL;
+
+		if (_rpcfdtype == 0 && defport != 0) {
+			if (last_transp && last_transp->xp_port == defport) {
+				transp = last_transp;
+				goto tcp_transport;
+			}
+			if ((sock = makesock(defport, IPPROTO_TCP, bufsiz)) < 0) {
+				xlog(L_FATAL, "%s: cannot make a TCP socket\n",
+						name);
+			}
 		}
 		transp = svctcp_create(sock, 0, 0);
 		if (transp == NULL) {
 			xlog(L_FATAL, "cannot create tcp service.");
 		}
+      tcp_transport:
 		if (!svc_register(transp, prog, vers, dispatch, IPPROTO_TCP)) {
 			xlog(L_FATAL, "unable to register (%s, %d, tcp).",
 					name, vers);
 		}
+		last_transp = transp;
 	}
 
 	if (_rpcpmstart) {
-- 
2.39.2