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authorChristopher Speller <crspeller@gmail.com>2018-09-28 12:40:17 -0700
committerGitHub <noreply@github.com>2018-09-28 12:40:17 -0700
commita8c01377bce777bf1940850e390e587c290e98e0 (patch)
tree0e176269b5faae110bb402b209d4f192654a435c /vendor/github.com/miekg/dns/listen_go111.go
parent006623e0f737ca7ee5d482fe47c09048a6f3d06a (diff)
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Updating server dependancies. (#9498)
Diffstat (limited to 'vendor/github.com/miekg/dns/listen_go111.go')
-rw-r--r--vendor/github.com/miekg/dns/listen_go111.go43
1 files changed, 43 insertions, 0 deletions
diff --git a/vendor/github.com/miekg/dns/listen_go111.go b/vendor/github.com/miekg/dns/listen_go111.go
new file mode 100644
index 000000000..bd024c893
--- /dev/null
+++ b/vendor/github.com/miekg/dns/listen_go111.go
@@ -0,0 +1,43 @@
+// +build go1.11,!windows
+
+package dns
+
+import (
+ "context"
+ "net"
+ "syscall"
+
+ "golang.org/x/sys/unix"
+)
+
+const supportsReusePort = true
+
+func reuseportControl(network, address string, c syscall.RawConn) error {
+ var opErr error
+ err := c.Control(func(fd uintptr) {
+ opErr = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1)
+ })
+ if err != nil {
+ return err
+ }
+
+ return opErr
+}
+
+func listenTCP(network, addr string, reuseport bool) (net.Listener, error) {
+ var lc net.ListenConfig
+ if reuseport {
+ lc.Control = reuseportControl
+ }
+
+ return lc.Listen(context.Background(), network, addr)
+}
+
+func listenUDP(network, addr string, reuseport bool) (net.PacketConn, error) {
+ var lc net.ListenConfig
+ if reuseport {
+ lc.Control = reuseportControl
+ }
+
+ return lc.ListenPacket(context.Background(), network, addr)
+}