Rename Tunnel ID to Channel

tunnel/link.go

@@ -1,10 +1,34 @@
 package tunnel
 
 import (
+	"sync"
+	"time"
+
 	"github.com/google/uuid"
 	"github.com/micro/go-micro/transport"
 )
 
+type link struct {
+	sync.RWMutex
+
+	transport.Socket
+	// unique id of this link e.g uuid
+	// which we define for ourselves
+	id string
+	// whether its a loopback connection
+	// this flag is used by the transport listener
+	// which accepts inbound quic connections
+	loopback bool
+	// whether its actually connected
+	// dialled side sets it to connected
+	// after sending the message. the
+	// listener waits for the connect
+	connected bool
+	// the last time we received a keepalive
+	// on this link from the remote side
+	lastKeepAlive time.Time
+}
+
 func newLink(s transport.Socket) *link {
 	return &link{
 		Socket: s,