multiprocess: add interfaces::ExternalSigner class

Add interfaces::ExternalSigner to let signer objects be passed between
processes and signer code to run in the original process, without
multiple processes linking and running signer code.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/qt/createwalletdialog.h b/src/qt/createwalletdialog.h
index fc13cc44eb..63a5e012d8 100644
--- a/src/qt/createwalletdialog.h
+++ b/src/qt/createwalletdialog.h
@@ -7,7 +7,12 @@
 
 #include <QDialog>
 
+#include <memory>
+
+namespace interfaces {
 class ExternalSigner;
+} // namespace interfaces
+
 class WalletModel;
 
 namespace Ui {
@@ -24,7 +29,7 @@ public:
     explicit CreateWalletDialog(QWidget* parent);
     virtual ~CreateWalletDialog();
 
-    void setSigners(const std::vector<ExternalSigner>& signers);
+    void setSigners(const std::vector<std::unique_ptr<interfaces::ExternalSigner>>& signers);
 
     QString walletName() const;
     bool isEncryptWalletChecked() const;