revid/senders.go: Utilise HTTPAddress variable in config

This change bumps the required iot tag and adds functional option
variadic parameters to the httpSender constructor so that we can
provide the HTTPAddress config variable and modify the httpSend
destination address. In addition to this, we have added an option
for the report callback.

go.mod

@@ -3,7 +3,7 @@ module bitbucket.org/ausocean/av
 go 1.18
 
 require (
-	bitbucket.org/ausocean/iot v1.3.3
+	bitbucket.org/ausocean/iot v1.4.0
 	bitbucket.org/ausocean/utils v1.3.2
 	github.com/Comcast/gots v0.0.0-20190305015453-8d56e473f0f7
 	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf

go.sum

@@ -1,6 +1,6 @@
 bitbucket.org/ausocean/iot v1.3.0/go.mod h1:rRcWt6SoM/jgIZpP1zrpnKb5BhxIMulAJ+q1xTvLh94=
-bitbucket.org/ausocean/iot v1.3.3 h1:xEu6jrvWEofzFo13154FS66g4i2Ojl94kheoUshFB/A=
-bitbucket.org/ausocean/iot v1.3.3/go.mod h1:NbEg2PvYSHDdUsy5eMmihBySpWfqaHiMdspQDZdDe8o=
+bitbucket.org/ausocean/iot v1.4.0 h1:DzySaszy8dPGv7eb5cdigAfm3d3y582Hr/Sy4nMlvJw=
+bitbucket.org/ausocean/iot v1.4.0/go.mod h1:NbEg2PvYSHDdUsy5eMmihBySpWfqaHiMdspQDZdDe8o=
 bitbucket.org/ausocean/utils v1.2.11/go.mod h1:uXzX9z3PLemyURTMWRhVI8uLhPX4uuvaaO85v2hcob8=
 bitbucket.org/ausocean/utils v1.3.0/go.mod h1:yWsulKjbBgwL17/w55MQ6cIT9jmNeOkwpd2gUIxAcIY=
 bitbucket.org/ausocean/utils v1.3.2 h1:U+jNixVPH1Ih0QpOckI4djhEc/T6FAzt9znADRcJ07s=

revid/pipeline.go

@@ -183,7 +183,10 @@ func (r *Revid) setupPipeline(mtsEnc func(dst io.WriteCloser, rate float64) (io.
 		case config.OutputHTTP:
 			r.cfg.Logger.Debug("using HTTP output")
 			pb := pool.NewBuffer(int(r.cfg.PoolStartElementSize), int(nElements), writeTimeout)
-			hs := newHTTPSender(r.ns, r.cfg.Logger, r.bitrate.Report)
+			hs, err := newHTTPSender(r.ns, r.cfg.Logger, withReportCallback(r.bitrate.Report), withHTTPAddress(r.cfg.HTTPAddress))
+			if err != nil {
+				return fmt.Errorf("coult not create http sender: %w", err)
+			}
 			w = newMTSSender(hs, r.cfg.Logger, pb, r.cfg.ClipDuration)
 			mtsSenders = append(mtsSenders, w)
 

revid/senders.go

@@ -60,29 +60,58 @@ var (
 	adjustedMTSPoolElementSize  int
 )
 
+var errReportCallbackNil = errors.New("report callback is nil")
+
+type httpSenderOption func(s *httpSender) error
+
+// withReportCallback provides a functional option to set the report callback
+// function. This can be used to record the number of bytes sent.
+func withReportCallback(report func(sent int)) httpSenderOption {
+	return func(s *httpSender) error {
+		if report == nil {
+			return errReportCallbackNil
+		}
+		s.report = report
+		return nil
+	}
+}
+
+// withHTTPAddress provides a functional option to set the destination http
+// address.
+func withHTTPAddress(addr string) httpSenderOption {
+	return func(s *httpSender) error {
+		s.addr = addr
+		return nil
+	}
+}
+
 // httpSender provides an implemntation of io.Writer to perform sends to a http
 // destination.
 type httpSender struct {
 	client *netsender.Sender
 	log    logging.Logger
 	report func(sent int)
+	addr   string
 }
 
 // newHttpSender returns a pointer to a new httpSender.
 // report is callback that can be used to report the amount of data sent per write.
 // This can be set to nil.
-func newHTTPSender(ns *netsender.Sender, log logging.Logger, report func(sent int)) *httpSender {
-	return &httpSender{
-		client: ns,
-		log:    log,
-		report: report,
+func newHTTPSender(ns *netsender.Sender, log logging.Logger, opts ...httpSenderOption) (*httpSender, error) {
+	s := &httpSender{client: ns, log: log}
+	for _, opt := range opts {
+		err := opt(s)
+		if err != nil {
+			return nil, err
+		}
 	}
+	return s, nil
 }
 
 // Write implements io.Writer.
 func (s *httpSender) Write(d []byte) (int, error) {
 	s.log.Debug("HTTP sending")
-	err := httpSend(d, s.client, s.log)
+	err := httpSend(d, s.client, s.log, s.addr)
 	if err == nil {
 		s.log.Debug("good send", "len", len(d))
 		if s.report != nil {
@@ -96,7 +125,7 @@ func (s *httpSender) Write(d []byte) (int, error) {
 
 func (s *httpSender) Close() error { return nil }
 
-func httpSend(d []byte, client *netsender.Sender, log logging.Logger) error {
+func httpSend(d []byte, client *netsender.Sender, log logging.Logger, addr string) error {
 	// Only send if "V0" or "S0" are configured as input.
 	send := false
 	ip := client.Param("ip")
@@ -120,9 +149,7 @@ func httpSend(d []byte, client *netsender.Sender, log logging.Logger) error {
 	if !send {
 		return nil
 	}
-	var err error
-	var reply string
-	reply, _, err = client.Send(netsender.RequestRecv, pins)
+	reply, _, err := client.Send(netsender.RequestRecv, pins, netsender.WithRecvAddress(addr))
 	if err != nil {
 		return err
 	}