X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=dccp_recv.c;h=07f616657a7db4ca0dfe5b9d318f542c215a18c6;hp=eeb7c57a71a52ea26cdeb1ee8751939a6b2518f7;hb=3e3c069366dbb2bf8f157ad0a406bda67dd51783;hpb=19d9318abf42debb15d833d4e56ab636893285c3

diff --git a/dccp_recv.c b/dccp_recv.c
index eeb7c57a..07f61665 100644
--- a/dccp_recv.c
+++ b/dccp_recv.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006-2008 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -57,17 +57,32 @@ static int dccp_recv_open(struct receiver_node *rn)
 {
 	struct private_dccp_recv_data *pdd;
 	struct dccp_recv_args_info *conf = rn->conf;
-	int ret = makesock(AF_UNSPEC, IPPROTO_DCCP, 0, conf->host_arg, conf->port_arg);
+	int fd, ret = makesock(AF_UNSPEC, IPPROTO_DCCP, 0, conf->host_arg,
+		conf->port_arg);
 
 	if (ret < 0)
 		return ret;
-
+	fd = ret;
+	/*
+	 * Disable unused CCIDs: the receiver does not send any application
+	 * data to the server. By shutting down this unused path we reduce
+	 * internal processing costs, as the unused CCIDs (in the kernel) are
+	 * then bypassed.
+	 */
+	if (shutdown(fd, SHUT_WR) < 0) {
+		ret = -ERRNO_TO_PARA_ERROR(errno);
+		goto err;
+	}
+	ret = mark_fd_nonblocking(fd);
+	if (ret < 0)
+		goto err;
 	rn->buf = para_calloc(DCCP_BUFSIZE);
 	rn->private_data = pdd = para_calloc(sizeof(struct private_dccp_recv_data));
-
-	pdd->fd = ret;
-	mark_fd_nonblocking(pdd->fd);
+	pdd->fd = fd;
 	return 1;
+err:
+	close(fd);
+	return ret;
 }
 
 static void dccp_shutdown(void)