From: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Date: Sun, 26 Jun 2011 08:26:34 +0000 (+1000)
Subject: for UDP sockets, we ONLY wait for pollin events
X-Git-Tag: upstream/1.9.6^2~378
X-Git-Url: https://git.piment-noir.org/?a=commitdiff_plain;h=5911f3e8ab7aafe22da1268116c19f4d1658be48;p=deb_libnfs.git

for UDP sockets, we ONLY wait for pollin events
since upd sockets are always writeable.
they just silently drop packets when congested
---

diff --git a/lib/socket.c b/lib/socket.c
index 7a29134..2c77ef6 100644
--- a/lib/socket.c
+++ b/lib/socket.c
@@ -47,6 +47,11 @@ int rpc_which_events(struct rpc_context *rpc)
 {
 	int events = rpc->is_connected ? POLLIN : POLLOUT;
 
+	if (rpc->is_udp != 0) {
+		/* for udp sockets we only wait for pollin */
+		return POLLIN;
+	}
+
 	if (rpc->outqueue) {
 		events |= POLLOUT;
 	}