Add stop platform command

experimental/libbox/command_stop.go

@@ -0,0 +1,50 @@
+//go:build darwin
+
+package libbox
+
+import (
+	"encoding/binary"
+	"net"
+	"runtime/debug"
+
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/rw"
+)
+
+func ClientServiceStop(sharedDirectory string) error {
+	conn, err := clientConnect(sharedDirectory)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+	err = binary.Write(conn, binary.BigEndian, uint8(CommandServiceStop))
+	if err != nil {
+		return err
+	}
+	var hasError bool
+	err = binary.Read(conn, binary.BigEndian, &hasError)
+	if err != nil {
+		return err
+	}
+	if hasError {
+		errorMessage, err := rw.ReadVString(conn)
+		if err != nil {
+			return err
+		}
+		return E.New(errorMessage)
+	}
+	return nil
+}
+
+func (s *CommandServer) handleServiceStop(conn net.Conn) error {
+	rErr := s.handler.ServiceStop()
+	err := binary.Write(conn, binary.BigEndian, rErr != nil)
+	if err != nil {
+		return err
+	}
+	if rErr != nil {
+		return rw.WriteVString(conn, rErr.Error())
+	}
+	debug.FreeOSMemory()
+	return nil
+}