Add admin panel, manager, node_manager, bandwidth limiter, connection limiter, bonding, failover, vless encryption, mkcp transport

transport/v2raykcp/multi_buffer.go

@@ -0,0 +1,52 @@
+package v2raykcp
+
+import "github.com/sagernet/sing/common/buf"
+
+// MultiBuffer is a list of buf.Buffer. The order of Buffer matters.
+type MultiBuffer []*buf.Buffer
+
+// ReleaseMulti releases all content of the MultiBuffer and returns an empty MultiBuffer.
+func ReleaseMulti(mb MultiBuffer) MultiBuffer {
+	for i := range mb {
+		mb[i].Release()
+		mb[i] = nil
+	}
+	return mb[:0]
+}
+
+// SplitBytes splits the given amount of bytes from the beginning of the MultiBuffer.
+// It returns the new MultiBuffer leftover and number of bytes written into the input byte slice.
+func SplitBytes(mb MultiBuffer, b []byte) (MultiBuffer, int) {
+	totalBytes := 0
+	endIndex := -1
+	for i := range mb {
+		pBuffer := mb[i]
+		nBytes, _ := pBuffer.Read(b)
+		totalBytes += nBytes
+		b = b[nBytes:]
+		if !pBuffer.IsEmpty() {
+			endIndex = i
+			break
+		}
+		pBuffer.Release()
+		mb[i] = nil
+	}
+
+	if endIndex == -1 {
+		mb = mb[:0]
+	} else {
+		mb = mb[endIndex:]
+	}
+
+	return mb, totalBytes
+}
+
+// IsEmpty returns true if the MultiBuffer has no content.
+func (mb MultiBuffer) IsEmpty() bool {
+	for _, b := range mb {
+		if !b.IsEmpty() {
+			return false
+		}
+	}
+	return true
+}