[#787] netmap: Refactor NewEpoch method

Split for user and control methods.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>

pkg/morph/client/netmap/new_epoch.go

@@ -8,15 +8,27 @@ import (
 
 // NewEpoch updates FrostFS epoch number through
 // Netmap contract call.
-// If `force` is true, this call is normally initiated by a control
-// service command and uses a control notary transaction internally
-// to ensure all nodes produce the same transaction with high probability.
-// If vub > 0, vub will be used as valid until block value.
-func (c *Client) NewEpoch(epoch uint64, vub uint32, force bool) (uint32, error) {
+func (c *Client) NewEpoch(epoch uint64) error {
 	prm := client.InvokePrm{}
 	prm.SetMethod(newEpochMethod)
 	prm.SetArgs(epoch)
-	prm.SetControlTX(force)
+
+	_, err := c.client.Invoke(prm)
+	if err != nil {
+		return fmt.Errorf("could not invoke method (%s): %w", newEpochMethod, err)
+	}
+	return nil
+}
+
+// NewEpochControl updates FrostFS epoch number through
+// control notary transaction internally to ensure all
+// nodes produce the same transaction with high probability.
+// If vub > 0, vub will be used as valid until block value.
+func (c *Client) NewEpochControl(epoch uint64, vub uint32) (uint32, error) {
+	prm := client.InvokePrm{}
+	prm.SetMethod(newEpochMethod)
+	prm.SetArgs(epoch)
+	prm.SetControlTX(true)
 	prm.SetVUB(vub)
 
 	res, err := c.client.Invoke(prm)