+// Frontend: Connection functions for programs using the safcm library
+
+// Copyright (C) 2021 Simon Ruderich
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+package frontend
+
+import (
+ "ruderich.org/simon/safcm"
+ "ruderich.org/simon/safcm/rpc"
+)
+
+// SendRecv sends a message for host over conn and waits for the response. Any
+// MsgLog messages received before the final (non MsgLog) response are passed
+// to l.Log.
+func (l *Loop) SendRecv(host Host, conn *rpc.Conn, msg safcm.Msg) (
+ safcm.Msg, error) {
+
+ err := conn.Send(msg)
+ if err != nil {
+ return nil, err
+ }
+ for {
+ x, err := conn.Recv()
+ if err != nil {
+ return nil, err
+ }
+ log, ok := x.(safcm.MsgLog)
+ if ok {
+ l.Log(host, log.Level, false, log.Text)
+ continue
+ }
+ return x, nil
+ }
+}