Temporarily add go-agentx (w/ fixes to lexico ordering)

go-agentx/pdu/reason.go

@@ -0,0 +1,38 @@
+// Copyright 2018 The agentx authors
+// Licensed under the LGPLv3 with static-linking exception.
+// See LICENCE file for details.
+
+package pdu
+
+import "fmt"
+
+// The various pdu packet reasons.
+const (
+	ReasonOther         Reason = 1
+	ReasonParseError    Reason = 2
+	ReasonProtocolError Reason = 3
+	ReasonTimeouts      Reason = 4
+	ReasonShutdown      Reason = 5
+	ReasonByManager     Reason = 6
+)
+
+// Reason defines a reason.
+type Reason byte
+
+func (r Reason) String() string {
+	switch r {
+	case ReasonOther:
+		return "ReasonOther"
+	case ReasonParseError:
+		return "ReasonParseError"
+	case ReasonProtocolError:
+		return "ReasonProtocolError"
+	case ReasonTimeouts:
+		return "ReasonTimeouts"
+	case ReasonShutdown:
+		return "ReasonShutdown"
+	case ReasonByManager:
+		return "ReasonByManager"
+	}
+	return fmt.Sprintf("ReasonUnknown (%d)", r)
+}