From aa75680dcf153eb2d5b06014b37663e15b2755d2 Mon Sep 17 00:00:00 2001
From: Conner Fromknecht <conner@lightning.engineering>
Date: Thu, 3 Jan 2019 18:38:35 -0800
Subject: [PATCH] config: add minbackoff to mirror maxbackoff

---
 config.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/config.go b/config.go
index afef1993..2441f110 100644
--- a/config.go
+++ b/config.go
@@ -53,6 +53,7 @@ const (
 	defaultInactiveChanTimeout = 20 * time.Minute
 	defaultMaxLogFiles         = 3
 	defaultMaxLogFileSize      = 10
+	defaultMinBackoff          = time.Second
 	defaultMaxBackoff          = time.Hour
 
 	defaultTorSOCKSPort            = 9050
@@ -197,6 +198,7 @@ type config struct {
 	ExternalIPs      []net.Addr
 	DisableListen    bool          `long:"nolisten" description:"Disable listening for incoming peer connections"`
 	NAT              bool          `long:"nat" description:"Toggle NAT traversal support (using either UPnP or NAT-PMP) to automatically advertise your external IP address to the network -- NOTE this does not support devices behind multiple NATs"`
+	MinBackoff       time.Duration `long:"minbackoff" description:"Shortest backoff when reconnecting to persistent peers. Valid time units are {s, m, h}."`
 	MaxBackoff       time.Duration `long:"maxbackoff" description:"Longest backoff when reconnecting to persistent peers. Valid time units are {s, m, h}."`
 
 	DebugLevel string `short:"d" long:"debuglevel" description:"Logging level for all subsystems {trace, debug, info, warn, error, critical} -- You may also specify <subsystem>=<level>,<subsystem2>=<level>,... to set the log level for individual subsystems -- Use show to list available subsystems"`
@@ -300,6 +302,7 @@ func loadConfig() (*config, error) {
 		},
 		MaxPendingChannels: defaultMaxPendingChannels,
 		NoSeedBackup:       defaultNoSeedBackup,
+		MinBackoff:         defaultMinBackoff,
 		MaxBackoff:         defaultMaxBackoff,
 		SubRPCServers: &subRPCServerConfigs{
 			SignRPC: &signrpc.Config{},
@@ -959,6 +962,13 @@ func loadConfig() (*config, error) {
 		}
 	}
 
+	// Ensure that the specified minimum backoff is below or equal to the
+	// maximum backoff.
+	if cfg.MinBackoff > cfg.MaxBackoff {
+		return nil, fmt.Errorf("maxbackoff must be greater than " +
+			"minbackoff")
+	}
+
 	// Finally, ensure that the user's color is correctly formatted,
 	// otherwise the server will not be able to start after the unlocking
 	// the wallet.