-added core functionality of the messenger service

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

formatting messenger code

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-completed core functionality of messenger service

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-code cleanup and reuse

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

+added structure to memberships of rooms

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-implemented member permission checks and deletion of messages

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-moved solving requests out of updating last messages (also forward before update)

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-reduced complexity of permisson check and changed load/save of rooms

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-added save/load for accessed keys and basement peers of a room

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-implemented save/load for members with their history and session

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-abstracted management of egos and contacts

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fix warning

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-abstracted management of members

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fixed and adjusted test case

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-separated handling of direct and anonymous contacts

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-messenger added member-sessions which fix multiple edge cases, also additional cleanup

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-updated docs and fixed memory leak

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-changed info messages and added protocol version exchange

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-adjusted client api to use contacts from sessions

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-added more logging and fixed wrong session usage

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-adjusted comm0 test case and removed adding members from checking messages

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fixed test-case for peer exchange

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-getting multiple peers connected in test-case with cadet

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fixed wrong assert and added tunnel version check

-simplified handling and forwarding

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fixed merging last messages and cycling info messages

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-automated adding sessions and members

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-corrected use of identity keys and signatures

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-adding local joining on entering external room

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fixed test-case comm0

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-added more test-cases with generic setup

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fixed multiple simultaneous channels blocking each other

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-making test-cases more precise

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-added check of members in test-cases, reduced merge messages

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-unified delayed operations: requests, deletions and merges

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-finished handling of operations

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fixed member session historystorage, added request permission check and padding for transmission

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-improved padding and removed automatic recursive requests

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-implemented filter for sending messages and added private messages to API level

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-wrong setups fixed with proper ego lookups

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-fixed problem with anonymous ego and changed to discrete-level padding

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-added links to replace deleted messages, added local deletion and fixed anonymous id changing

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

-added session completion and removal through completion process

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

1 files changed, 131 insertions, 0 deletions

diff --git a/src/messenger/testing_messenger_barrier.h b/src/messenger/testing_messenger_barrier.h
new file mode 100644
index 000000000..3062a393a
--- /dev/null
+++ b/src/messenger/testing_messenger_barrier.h
@@ -0,0 +1,131 @@
+/*
+   This file is part of GNUnet.
+   Copyright (C) 2021 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
+ */
+/**
+ * @file messenger/testing_messenger_barrier.h
+ * @author Tobias Frisch
+ * @brief Pseudo-barriers for simple event handling
+ */
+
+#ifndef GNUNET_TESTING_MESSENGER_BARRIER_H_
+#define GNUNET_TESTING_MESSENGER_BARRIER_H_
+
+#include "platform.h"
+#include "gnunet_util_lib.h"
+
+/**
+ * Handle for pseudo-barrier
+ */
+struct GNUNET_BarrierHandle;
+
+
+/**
+ * Functions of this type are to be given as callback argument to
+ * GNUNET_init_barrier(). The callback will be called when status
+ * information is available for the pseudo-barrier.
+ *
+ * @param cls the closure given to GNUNET_init_barrier()
+ * @param barrier the pseudo-barrier handle
+ * @param status status of the pseudo-barrier. The pseudo-barrier is removed
+ *          once it has been crossed or an error occurs while processing it.
+ *          Therefore it is invalid to call GNUNET_cancel_barrier() on a
+ *          crossed or errored pseudo-barrier.
+ */
+typedef void
+(*GNUNET_BarrierStatusCallback) (void *cls,
+                                 struct GNUNET_BarrierHandle *barrier,
+                                 int status);
+
+
+/**
+ * Initialise a pseudo-barrier and call the given callback when the required
+ * amount of peers (requirement) reach the pseudo-barrier OR upon error.
+ *
+ * @param requirement the amount of peers that is required to reach the
+ *   pseudo-barrier. Peers signal reaching a pseudo-barrier by calling
+ *   GNUNET_wait_barrier().
+ * @param cb the callback to call when the pseudo-barrier is reached or upon
+ *   error. Can be NULL.
+ * @param cls closure for the above callback
+ * @return pseudo-barrier handle; NULL upon error
+ */
+struct GNUNET_BarrierHandle*
+GNUNET_init_barrier (unsigned int requirement,
+                     GNUNET_BarrierStatusCallback cb,
+                     void *cb_cls);
+
+
+/**
+ * Cancel a pseudo-barrier.
+ *
+ * @param barrier the pseudo-barrier handle
+ */
+void
+GNUNET_cancel_barrier (struct GNUNET_BarrierHandle *barrier);
+
+
+/**
+ * Handle for pseudo-barrier wait
+ */
+struct GNUNET_BarrierWaitHandle;
+
+
+/**
+ * Functions of this type are to be given as acallback argument to
+ * GNUNET_wait_barrier(). The callback will be called when the pseudo-barrier
+ * corresponding given in GNUNET_wait_barrier() is crossed or cancelled.
+ *
+ * @param cls closure pointer given to GNUNET_wait_barrier()
+ * @param waiting the pseudo-barrier wait handle
+ * @param status #GNUNET_SYSERR in case of error while waiting for the
+ *   pseudo-barrier; #GNUNET_OK if the pseudo-barrier is crossed
+ */
+typedef void
+(*GNUNET_BarrierWaitStatusCallback) (void *cls,
+                                     struct GNUNET_BarrierWaitHandle *waiting,
+                                     int status);
+
+
+/**
+ * Wait for a pseudo-barrier to be crossed. This function should be called for
+ * the peers which have been started by the testbed.
+ *
+ * @param barrier the pseudo-barrier handle
+ * @param cb the pseudo-barrier wait callback
+ * @param cls the closure for the above callback
+ * @return pseudo-barrier wait handle which can be used to cancel the waiting
+ *   at anytime before the callback is called. NULL upon error.
+ */
+struct GNUNET_BarrierWaitHandle*
+GNUNET_wait_barrier (struct GNUNET_BarrierHandle *barrier,
+                     GNUNET_BarrierWaitStatusCallback cb,
+                     void *cb_cls);
+
+
+/**
+ * Cancel a pseudo-barrier wait handle. Should not be called in or after the
+ * callback given to GNUNET_wait_barrier() has been called.
+ *
+ * @param waiting the pseudo-barrier wait handle
+ */
+void
+GNUNET_cancel_wait_barrier (struct GNUNET_BarrierWaitHandle *waiting);
+
+
+#endif /* GNUNET_TESTING_MESSENGER_BARRIER_H_ */