- so-reuseport is available on BSDs(such as FreeBSD 10) and OS/X.

git-svn-id: file:///svn/unbound/trunk@3153 be551aaa-1e26-0410-a405-d3ace91eadb9

daemon/daemon.c

@@ -266,7 +266,7 @@ daemon_open_shared_ports(struct daemon* daemon)
 			daemon->ports = NULL;
 		}
 		/* see if we want to reuseport */
-#if defined(__linux__) && defined(SO_REUSEPORT)
+#ifdef SO_REUSEPORT
 		if(daemon->cfg->so_reuseport && daemon->cfg->num_threads > 0)
 			daemon->reuseport = 1;
 #endif
@@ -449,7 +449,7 @@ thread_start(void* arg)
 	tube_close_write(worker->cmd);
 	close_other_pipes(worker->daemon, worker->thread_num);
 #endif
-#if defined(__linux__) && defined(SO_REUSEPORT)
+#ifdef SO_REUSEPORT
 	if(worker->daemon->cfg->so_reuseport)
 		port_num = worker->thread_num;
 	else

doc/Changelog

@@ -1,3 +1,6 @@
+27 June 2014: Wouter
+	- so-reuseport is available on BSDs(such as FreeBSD 10) and OS/X.
+
 26 June 2014: Wouter
 	- unbound-control status reports if so-reuseport was successful.
 	- iana portlist updated.

doc/example.conf.in

@@ -85,7 +85,7 @@ server:
 	# 0 is system default.  Use 4m to handle spikes on very busy servers.
 	# so-sndbuf: 0
 	
-	# on Linux(3.9+) use SO_REUSEPORT to distribute queries over threads.
+	# use SO_REUSEPORT to distribute queries over threads.
 	# so-reuseport: no
 
 	# EDNS reassembly buffer to advertise to UDP peers (the actual buffer

doc/unbound.conf.5.in

@@ -262,8 +262,9 @@ to so\-rcvbuf.
 .B so\-reuseport: \fI<yes or no>
 If yes, then open dedicated listening sockets for incoming queries for each
 thread and try to set the SO_REUSEPORT socket option on each socket.  May
-distribute incoming queries to threads more evenly.  Default is no.  Only
-supported on Linux >= 3.9.  You can enable it (on any platform and kernel),
+distribute incoming queries to threads more evenly.  Default is no.  On Linux
+it is supported in kernels >= 3.9.  On other systems, FreeBSD, OSX it may
+also work.  You can enable it (on any platform and kernel),
 it then attempts to open the port and passes the option if it was available
 at compile time, if that works it is used, if it fails, it continues
 silently (unless verbosity 3) without the option.

services/listen_dnsport.c

@@ -153,8 +153,8 @@ create_udp_sock(int family, int socktype, struct sockaddr* addr,
 #endif
 		}
 #endif /* SO_REUSEADDR */
-#if defined(__linux__) && defined(SO_REUSEPORT)
-		/* Linux specific: try to set SO_REUSEPORT so that incoming
+#ifdef SO_REUSEPORT
+		/* try to set SO_REUSEPORT so that incoming
 		 * queries are distributed evenly among the receiving threads.
 		 * Each thread must have its own socket bound to the same port,
 		 * with SO_REUSEPORT set on each socket.
@@ -172,7 +172,7 @@ create_udp_sock(int family, int socktype, struct sockaddr* addr,
 		}
 #else
 		(void)reuseport;
-#endif /* defined(__linux__) && defined(SO_REUSEPORT) */
+#endif /* defined(SO_REUSEPORT) */
 	}
 	if(rcv) {
 #ifdef SO_RCVBUF
@@ -491,8 +491,8 @@ create_tcp_accept_sock(struct addrinfo *addr, int v6only, int* noproto,
 		return -1;
 	}
 #endif /* SO_REUSEADDR */
-#if defined(__linux__) && defined(SO_REUSEPORT)
-	/* Linux specific: try to set SO_REUSEPORT so that incoming
+#ifdef SO_REUSEPORT
+	/* try to set SO_REUSEPORT so that incoming
 	 * connections are distributed evenly among the receiving threads.
 	 * Each thread must have its own socket bound to the same port,
 	 * with SO_REUSEPORT set on each socket.
@@ -510,7 +510,7 @@ create_tcp_accept_sock(struct addrinfo *addr, int v6only, int* noproto,
 	}
 #else
 	(void)reuseport;
-#endif /* defined(__linux__) && defined(SO_REUSEPORT) */
+#endif /* defined(SO_REUSEPORT) */
 #if defined(IPV6_V6ONLY)
 	if(addr->ai_family == AF_INET6 && v6only) {
 		if(setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,