Add accept filters

git-svn-id: http://www.varnish-cache.org/svn/trunk@340 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/tcp.c

@@ -5,6 +5,7 @@
 #include <string.h>
 #include <assert.h>
 #include <stdio.h>
+#include <errno.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netdb.h>
@@ -12,6 +13,21 @@
 #include "heritage.h"
 #include "libvarnish.h"
 
+static void
+accept_filter(int fd)
+{
+	struct accept_filter_arg afa;
+	int i;
+
+	bzero(&afa, sizeof(afa));
+	strcpy(afa.af_name, "httpready");
+	errno = 0;
+	i = setsockopt(fd, SOL_SOCKET, SO_ACCEPTFILTER,
+	    &afa, sizeof(afa));
+	printf("Acceptfilter(%d, httpready): %d %s\n",
+	    fd, i, strerror(errno));
+}
+
 static void
 create_listen_socket(const char *addr, const char *port, int *sp, int nsp)
 {
@@ -64,10 +80,14 @@ open_tcp(const char *port)
 	    &heritage.sock_remote[0], HERITAGE_NSOCKS);
 
 	for (u = 0; u < HERITAGE_NSOCKS; u++) {
-		if (heritage.sock_local[u] >= 0)
+		if (heritage.sock_local[u] >= 0) {
 			AZ(listen(heritage.sock_local[u], 16));
-		if (heritage.sock_remote[u] >= 0)
+			accept_filter(heritage.sock_local[u]);
+		}
+		if (heritage.sock_remote[u] >= 0) {
 			AZ(listen(heritage.sock_remote[u], 16));
+			accept_filter(heritage.sock_remote[u]);
+		}
 	}
 	return (0);
 }