diff options
Diffstat (limited to 'listen_linux.go')
-rw-r--r-- | listen_linux.go | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/listen_linux.go b/listen_linux.go new file mode 100644 index 0000000..b1220ce --- /dev/null +++ b/listen_linux.go @@ -0,0 +1,34 @@ +package caddy + +import ( + "context" + "net" + "syscall" + "time" + + "go.uber.org/zap" + "golang.org/x/sys/unix" +) + +// ListenTimeout is the same as Listen, but with a configurable keep-alive timeout duration. +func ListenTimeout(network, addr string, keepalivePeriod time.Duration) (net.Listener, error) { + // check to see if plugin provides listener + if ln, err := getListenerFromPlugin(network, addr); err != nil || ln != nil { + return ln, err + } + + config := &net.ListenConfig{Control: reusePort, KeepAlive: keepalivePeriod} + return config.Listen(context.Background(), network, addr) +} + +func reusePort(network, address string, conn syscall.RawConn) error { + return conn.Control(func(descriptor uintptr) { + if err := unix.SetsockoptInt(int(descriptor), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1); err != nil { + Log().Error("setting SO_REUSEPORT", + zap.String("network", network), + zap.String("address", address), + zap.Uintptr("descriptor", descriptor), + zap.Error(err)) + } + }) +} |