Add ClientConfig.AlwaysWantConns

client.go

@@ -451,6 +451,9 @@ func (cl *Client) ipIsBlocked(ip net.IP) bool {
 }
 
 func (cl *Client) wantConns() bool {
+	if cl.config.AlwaysWantConns {
+		return true
+	}
 	for _, t := range cl.torrents {
 		if t.wantConns() {
 			return true

config.go

@@ -139,6 +139,9 @@ type ClientConfig struct {
 	DropMutuallyCompletePeers bool
 	// Whether to accept peer connections at all.
 	AcceptPeerConnections bool
+	// Whether a Client should want conns without delegating to any attached Torrents. This is
+	// useful when torrents might be added dynmically in callbacks for example.
+	AlwaysWantConns bool
 
 	// OnQuery hook func
 	DHTOnQuery func(query *krpc.Msg, source net.Addr) (propagate bool)