1 files changed, 66 insertions, 0 deletions

diff --git a/src/service/messenger/gnunet-service-messenger_message_state.h b/src/service/messenger/gnunet-service-messenger_message_state.h
new file mode 100644
index 000000000..9723c7654
--- /dev/null
+++ b/src/service/messenger/gnunet-service-messenger_message_state.h
@@ -0,0 +1,66 @@
+/*
+   This file is part of GNUnet.
+   Copyright (C) 2020--2024 GNUnet e.V.
+
+   GNUnet is free software: you can redistribute it and/or modify it
+   under the terms of the GNU Affero General Public License as published
+   by the Free Software Foundation, either version 3 of the License,
+   or (at your option) any later version.
+
+   GNUnet 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
+   Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+   SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/**
+ * @author Tobias Frisch
+ * @file src/messenger/gnunet-service-messenger_message_state.h
+ * @brief GNUnet MESSENGER service
+ */
+
+#ifndef GNUNET_SERVICE_MESSENGER_MESSAGE_STATE_H
+#define GNUNET_SERVICE_MESSENGER_MESSAGE_STATE_H
+
+#include "gnunet_messenger_service.h"
+
+#include "gnunet-service-messenger_list_messages.h"
+
+struct GNUNET_MESSENGER_MessageState
+{
+  struct GNUNET_MESSENGER_ListMessages last_messages;
+};
+
+void
+init_message_state (struct GNUNET_MESSENGER_MessageState *state);
+
+void
+clear_message_state (struct GNUNET_MESSENGER_MessageState *state);
+
+void
+get_message_state_chain_hash (const struct GNUNET_MESSENGER_MessageState *state,
+                              struct GNUNET_HashCode *hash);
+
+const struct GNUNET_HashCode*
+get_message_state_merge_hash (const struct
+                              GNUNET_MESSENGER_MessageState *state);
+
+void
+update_message_state (struct GNUNET_MESSENGER_MessageState *state,
+                      enum GNUNET_GenericReturnValue requested,
+                      const struct GNUNET_MESSENGER_Message *message,
+                      const struct GNUNET_HashCode *hash);
+
+void
+load_message_state (struct GNUNET_MESSENGER_MessageState *state,
+                    const char *path);
+
+void
+save_message_state (const struct GNUNET_MESSENGER_MessageState *state,
+                    const char *path);
+
+#endif //GNUNET_SERVICE_MESSENGER_MESSAGE_STATE_H