From: Marek Vavruša <marek.vavrusa@nic.cz>
Date: Wed, 15 Jul 2015 15:19:43 +0000 (+0200)
Subject: daemon/io: use recvmmsg for master sockets, recvmsg otherwise
X-Git-Tag: v1.0.0-beta1~77^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3600b073e1bb2c71a509dd0cdf1a70254efc49e7;p=thirdparty%2Fknot-resolver.git

daemon/io: use recvmmsg for master sockets, recvmsg otherwise

this applies for Linux with recvmmsg() support only
---

diff --git a/daemon/io.c b/daemon/io.c
index 4457f456e..f4073fba1 100644
--- a/daemon/io.c
+++ b/daemon/io.c
@@ -41,7 +41,11 @@ static void handle_getbuf(uv_handle_t* handle, size_t suggested_size, uv_buf_t*
 	uv_loop_t *loop = handle->loop;
 	struct worker_ctx *worker = loop->data;
 	buf->base = (char *)worker->wire_buf;
-	buf->len = sizeof(worker->wire_buf);
+	/* Use recvmmsg() on master sockets if possible. */
+	if (handle->data)
+		buf->len = suggested_size;
+	else
+		buf->len = sizeof(worker->wire_buf);
 }
 
 void udp_recv(uv_udp_t *handle, ssize_t nread, const uv_buf_t *buf,