From cd7436284aa538d6a8a83811a33b3a3cc32d87a3 Mon Sep 17 00:00:00 2001
From: Simon Ruderich <simon@ruderich.org>
Date: Tue, 18 May 2021 18:36:11 +0200
Subject: [PATCH] frontend: add Loop.HostSyncMsg()

---
 cmd/safcm/sync_sync.go |  6 +-----
 frontend/conn.go       | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/cmd/safcm/sync_sync.go b/cmd/safcm/sync_sync.go
index bc11043..01e712c 100644
--- a/cmd/safcm/sync_sync.go
+++ b/cmd/safcm/sync_sync.go
@@ -35,14 +35,10 @@ func (s *Sync) hostSync(conn *rpc.Conn, detectedGroups []string) error {
 	if err != nil {
 		return err
 	}
-	x, err := s.loop.SendRecv(s, conn, req)
+	resp, err := s.loop.HostSyncMsg(s, conn, req)
 	if err != nil {
 		return err
 	}
-	resp, ok := x.(safcm.MsgSyncResp)
-	if !ok {
-		return fmt.Errorf("unexpected response %v", x)
-	}
 
 	// Display changes
 	c := frontend.Changes{
diff --git a/frontend/conn.go b/frontend/conn.go
index 02dfe8b..01486ff 100644
--- a/frontend/conn.go
+++ b/frontend/conn.go
@@ -64,3 +64,20 @@ func (l *Loop) HostInfoMsg(host Host, conn *rpc.Conn, req safcm.MsgInfoReq) (
 	}
 	return resp, nil
 }
+
+// HostSyncMsg sends a MsgSyncReq for host via conn and returns the resulting
+// MsgSyncResp.
+func (l *Loop) HostSyncMsg(host Host, conn *rpc.Conn, req safcm.MsgSyncReq) (
+	safcm.MsgSyncResp, error) {
+
+	var empty safcm.MsgSyncResp
+	x, err := l.SendRecv(host, conn, req)
+	if err != nil {
+		return empty, err
+	}
+	resp, ok := x.(safcm.MsgSyncResp)
+	if !ok {
+		return empty, fmt.Errorf("unexpected response %v", x)
+	}
+	return resp, nil
+}
-- 
2.43.2