fix set channel in Confirm mode not immediately after creating

consume.go

@@ -62,7 +62,7 @@ func NewConsumer(
 		return nil, errors.New("connection manager can't be nil")
 	}
 
-	chanManager, err := channelmanager.NewChannelManager(conn.connectionManager, options.Logger, conn.connectionManager.ReconnectInterval)
+	chanManager, err := channelmanager.NewChannelManager(conn.connectionManager, false, options.Logger, conn.connectionManager.ReconnectInterval)
 	if err != nil {
 		return nil, err
 	}

internal/channelmanager/channel_manager.go

@@ -21,10 +21,11 @@ type ChannelManager struct {
 	reconnectionCount   uint
 	reconnectionCountMu *sync.Mutex
 	dispatcher          *dispatcher.Dispatcher
+	inConfirmMode       bool
 }
 
 // NewChannelManager creates a new connection manager
-func NewChannelManager(connManager *connectionmanager.ConnectionManager, log logger.Logger, reconnectInterval time.Duration) (*ChannelManager, error) {
+func NewChannelManager(connManager *connectionmanager.ConnectionManager, confirmMode bool, log logger.Logger, reconnectInterval time.Duration) (*ChannelManager, error) {
 	ch, err := getNewChannel(connManager)
 	if err != nil {
 		return nil, err
@@ -39,6 +40,7 @@ func NewChannelManager(connManager *connectionmanager.ConnectionManager, log log
 		reconnectionCount:   0,
 		reconnectionCountMu: &sync.Mutex{},
 		dispatcher:          dispatcher.NewDispatcher(),
+		inConfirmMode:       confirmMode,
 	}
 	go chanManager.startNotifyCancelOrClosed()
 	return &chanManager, nil
@@ -119,6 +121,12 @@ func (chanManager *ChannelManager) reconnect() error {
 	if err != nil {
 		return err
 	}
+	// chaneel creating and setting confirm mode should be in the same mutex Lock interval
+	if chanManager.inConfirmMode {
+		if err = newChannel.Confirm(false); err != nil {
+			return err
+		}
+	}
 
 	if err = chanManager.channel.Close(); err != nil {
 		chanManager.logger.Warnf("error closing channel while reconnecting: %v", err)

publish.go

@@ -78,7 +78,7 @@ func NewPublisher(conn *Conn, optionFuncs ...func(*PublisherOptions)) (*Publishe
 		return nil, errors.New("connection manager can't be nil")
 	}
 
-	chanManager, err := channelmanager.NewChannelManager(conn.connectionManager, options.Logger, conn.connectionManager.ReconnectInterval)
+	chanManager, err := channelmanager.NewChannelManager(conn.connectionManager, options.ConfirmMode, options.Logger, conn.connectionManager.ReconnectInterval)
 	if err != nil {
 		return nil, err
 	}
@@ -272,6 +272,7 @@ func (publisher *Publisher) PublishWithDeferredConfirmWithContext(
 		}
 		deferredConfirmations = append(deferredConfirmations, conf)
 	}
+
 	return deferredConfirmations, nil
 }