From 6b2fc5e056974bec870db386c8e1e6be2b89cebd Mon Sep 17 00:00:00 2001
From: Roman Khimov <roman@nspcc.ru>
Date: Fri, 1 Jul 2022 23:07:37 +0300
Subject: [PATCH] rpc/client: add Close method

Allow to close unused network connections and use it during RPC broadcaster
shutdown, because otherwise we leak them.
---
 pkg/rpc/client/client.go                      | 5 +++++
 pkg/services/helpers/rpcbroadcaster/client.go | 1 +
 2 files changed, 6 insertions(+)

diff --git a/pkg/rpc/client/client.go b/pkg/rpc/client/client.go
index fb03f4bd8..a837e5238 100644
--- a/pkg/rpc/client/client.go
+++ b/pkg/rpc/client/client.go
@@ -167,6 +167,11 @@ func (c *Client) Init() error {
 	return nil
 }
 
+// Close closes unused underlying networks connections.
+func (c *Client) Close() {
+	c.cli.CloseIdleConnections()
+}
+
 func (c *Client) performRequest(method string, p request.RawParams, v interface{}) error {
 	var r = request.Raw{
 		JSONRPC:   request.JSONRPCVersion,
diff --git a/pkg/services/helpers/rpcbroadcaster/client.go b/pkg/services/helpers/rpcbroadcaster/client.go
index 1045312b0..33696084f 100644
--- a/pkg/services/helpers/rpcbroadcaster/client.go
+++ b/pkg/services/helpers/rpcbroadcaster/client.go
@@ -66,6 +66,7 @@ run:
 			}
 		}
 	}
+	c.client.Close()
 drain:
 	for {
 		select {