Add some TODOs

connection.go

@@ -410,6 +410,7 @@ func (cn *connection) writer(keepAliveTimeout time.Duration) {
 			postedKeepalives.Add(1)
 		}
 		if buf.Len() == 0 {
+			// TODO: Minimize wakeups....
 			cn.writerCond.Wait()
 			continue
 		}

global.go

@@ -30,7 +30,7 @@ const (
 	//
 	// Fast Extension ([7]|=0x04):
 	// http://bittorrent.org/beps/bep_0006.html.
-	// Disabled until AllowedFast is implemented.
+	// Disabled until AllowedFast is implemented. TODO
 	//
 	// DHT ([7]|=1):
 	// http://www.bittorrent.org/beps/bep_0005.html

torrent.go

@@ -1476,6 +1476,7 @@ func (t *Torrent) pieceHashed(piece int, correct bool) {
 }
 
 func (t *Torrent) cancelRequestsForPiece(piece int) {
+	// TODO: Make faster
 	for cn := range t.conns {
 		cn.tickleWriter()
 	}