summaryrefslogtreecommitdiff
path: root/src/messenger/gnunet-service-messenger_list_messages.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/messenger/gnunet-service-messenger_list_messages.c')
-rw-r--r--src/messenger/gnunet-service-messenger_list_messages.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/messenger/gnunet-service-messenger_list_messages.c b/src/messenger/gnunet-service-messenger_list_messages.c
new file mode 100644
index 000000000..c4f1f7043
--- /dev/null
+++ b/src/messenger/gnunet-service-messenger_list_messages.c
@@ -0,0 +1,76 @@
+/*
+ This file is part of GNUnet.
+ Copyright (C) 2020 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_list_messages.c
+ * @brief GNUnet MESSENGER service
+ */
+
+#include "gnunet-service-messenger_list_messages.h"
+
+void
+init_list_messages (struct GNUNET_MESSENGER_ListMessages *messages)
+{
+ GNUNET_assert(messages);
+
+ messages->head = NULL;
+ messages->tail = NULL;
+}
+
+void
+clear_list_messages (struct GNUNET_MESSENGER_ListMessages *messages)
+{
+ GNUNET_assert(messages);
+
+ while (messages->head)
+ {
+ struct GNUNET_MESSENGER_ListMessage *element = messages->head;
+
+ GNUNET_CONTAINER_DLL_remove(messages->head, messages->tail, element);
+ GNUNET_free(element);
+ }
+
+ messages->head = NULL;
+ messages->tail = NULL;
+}
+
+void
+add_to_list_messages (struct GNUNET_MESSENGER_ListMessages *messages, const struct GNUNET_HashCode *hash)
+{
+ struct GNUNET_MESSENGER_ListMessage *element = GNUNET_new(struct GNUNET_MESSENGER_ListMessage);
+
+ GNUNET_memcpy(&(element->hash), hash, sizeof(struct GNUNET_HashCode));
+
+ GNUNET_CONTAINER_DLL_insert_tail(messages->head, messages->tail, element);
+}
+
+void
+remove_from_list_messages (struct GNUNET_MESSENGER_ListMessages *messages, const struct GNUNET_HashCode *hash)
+{
+ struct GNUNET_MESSENGER_ListMessage *element;
+
+ for (element = messages->head; element; element = element->next)
+ if (0 == GNUNET_CRYPTO_hash_cmp (&(element->hash), hash))
+ {
+ GNUNET_CONTAINER_DLL_remove(messages->head, messages->tail, element);
+ GNUNET_free(element);
+ break;
+ }
+}