fix windows

lib/mux/sysGetsock_windows.go

@@ -0,0 +1,37 @@
+// +build windows
+
+package mux
+
+import (
+	"errors"
+	"net"
+	"os"
+)
+
+func sysGetSock(fd *os.File) (bufferSize int, err error) {
+	// https://github.com/golang/sys/blob/master/windows/syscall_windows.go#L1184
+	// not support, WTF???
+	// return syscall.GetsockoptInt((syscall.Handle)(unsafe.Pointer(fd.Fd())), syscall.SOL_SOCKET, syscall.SO_RCVBUF)
+	bufferSize = 10 * 1024 * 1024
+	return
+}
+
+func getConnFd(c net.Conn) (fd *os.File, err error) {
+	switch c.(type) {
+	case *net.TCPConn:
+		//fd, err = c.(*net.TCPConn).File()
+		//if err != nil {
+		//	return
+		//}
+		return
+	case *net.UDPConn:
+		//fd, err = c.(*net.UDPConn).File()
+		//if err != nil {
+		//	return
+		//}
+		return
+	default:
+		err = errors.New("mux:unknown conn type, only tcp or kcp")
+		return
+	}
+}