1 files changed, 28 insertions, 0 deletions
diff --git a/danmaku/dmpkg/operation.go b/danmaku/dmpkg/operation.go
new file mode 100644
index 0000000..d3c13f4
--- /dev/null
+++ b/danmaku/dmpkg/operation.go
@@ -0,0 +1,28 @@
+package dmpkg
+
+type Operation uint32
+
+// Operations
+const (
+	OpHeartbeat    Operation = 2
+	OpHeartbeatAck Operation = 3
+	OpLayer7Data   Operation = 5
+	OpConnect      Operation = 7
+	OpConnectOk    Operation = 8
+)
+
+var opStringMap = map[Operation]string{
+	OpHeartbeat:    "HeartBeat",
+	OpHeartbeatAck: "HeartBeatAck",
+	OpLayer7Data:   "AppData",
+	OpConnect:      "Connect",
+	OpConnectOk:    "ConnectOk",
+}
+
+func (o Operation) String() string {
+	s, exists := opStringMap[o]
+	if !exists {
+		return "<Unknown>"
+	}
+	return s
+}