change project structure

add across nodes ip limit
add user ip recorder
del config file watch

app/dispatcher/stats.go

@@ -0,0 +1,25 @@
+package dispatcher
+
+import (
+	"github.com/xtls/xray-core/common"
+	"github.com/xtls/xray-core/common/buf"
+	"github.com/xtls/xray-core/features/stats"
+)
+
+type SizeStatWriter struct {
+	Counter stats.Counter
+	Writer  buf.Writer
+}
+
+func (w *SizeStatWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
+	w.Counter.Add(int64(mb.Len()))
+	return w.Writer.WriteMultiBuffer(mb)
+}
+
+func (w *SizeStatWriter) Close() error {
+	return common.Close(w.Writer)
+}
+
+func (w *SizeStatWriter) Interrupt() {
+	common.Interrupt(w.Writer)
+}