From 74986db9ed33a163416583b0a5750dbd083eb5da Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Thu, 16 Apr 2020 12:00:49 +1000
Subject: [PATCH] Don't try to do conventional dials if we have no dialers

Stops us from consuming all the peers we store for no reason.
---
 client.go  | 5 +++++
 torrent.go | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/client.go b/client.go
index da45ec09..36ad98b4 100644
--- a/client.go
+++ b/client.go
@@ -257,7 +257,12 @@ func (cl *Client) AddDhtServer(d DhtServer) {
 // Adds a Dialer for outgoing connections. All Dialers are used when attempting to connect to a
 // given address for any Torrent.
 func (cl *Client) AddDialer(d Dialer) {
+	cl.lock()
+	defer cl.unlock()
 	cl.dialers = append(cl.dialers, d)
+	for _, t := range cl.torrents {
+		t.openNewConns()
+	}
 }
 
 // Registers a Listener, and starts Accepting on it. You must Close Listeners provided this way
diff --git a/torrent.go b/torrent.go
index 1cd5e257..872c9102 100644
--- a/torrent.go
+++ b/torrent.go
@@ -1065,6 +1065,9 @@ func (t *Torrent) openNewConns() {
 		if len(t.halfOpen) >= t.maxHalfOpen() {
 			return
 		}
+		if len(t.cl.dialers) == 0 {
+			return
+		}
 		p := t.peers.PopMax()
 		t.initiateConn(p)
 	}
-- 
2.50.0