loopd: make the LND RPC timeout configurable

Author: bhandras

loopd/config.go

@@ -76,6 +76,10 @@ var (
 		defaultLndMacaroon,
 	)
 
+	// DefaultLndRPCTimeout is the default timeout to use when communicating
+	// with lnd.
+	DefaultLndRPCTimeout = time.Minute
+
 	// DefaultTLSCertPath is the default full path of the autogenerated TLS
 	// certificate.
 	DefaultTLSCertPath = filepath.Join(
@@ -118,6 +122,9 @@ type lndConfig struct {
 	MacaroonPath string `long:"macaroonpath" description:"The full path to the single macaroon to use, either the admin.macaroon or a custom baked one. Cannot be specified at the same time as macaroondir. A custom macaroon must contain ALL permissions required for all subservers to work, otherwise permission errors will occur."`
 
 	TLSPath string `long:"tlspath" description:"Path to lnd tls certificate"`
+
+	// RPCTimeout is the timeout to use when communicating with lnd.
+	RPCTimeout time.Duration `long:"rpctimeout" description:"The timeout to use when communicating with lnd"`
 }
 
 type loopServerConfig struct {
@@ -217,6 +224,7 @@ func DefaultConfig() Config {
 		Lnd: &lndConfig{
 			Host:         "localhost:10009",
 			MacaroonPath: DefaultLndMacaroonPath,
+			RPCTimeout:   DefaultLndRPCTimeout,
 		},
 	}
 }

loopd/run.go

@@ -96,6 +96,7 @@ func NewListenerConfig(config *Config, rpcCfg RPCConfig) *ListenerCfg {
 				BlockUntilChainSynced: true,
 				CallerCtx:             callerCtx,
 				BlockUntilUnlocked:    true,
+				RPCTimeout:            cfg.RPCTimeout,
 			}
 
 			// If a custom lnd connection is specified we use that