diff options
Diffstat (limited to 'src/service/messenger/messenger_api_queue_messages.c')
-rw-r--r-- | src/service/messenger/messenger_api_queue_messages.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/service/messenger/messenger_api_queue_messages.c b/src/service/messenger/messenger_api_queue_messages.c new file mode 100644 index 000000000..33e591da3 --- /dev/null +++ b/src/service/messenger/messenger_api_queue_messages.c | |||
@@ -0,0 +1,133 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2023--2024 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
10 | GNUnet is distributed in the hope that it will be useful, but | ||
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
13 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | /** | ||
21 | * @author Tobias Frisch | ||
22 | * @file src/messenger/messenger_api_queue_messages.c | ||
23 | * @brief messenger api: client implementation of GNUnet MESSENGER service | ||
24 | */ | ||
25 | |||
26 | #include "messenger_api_queue_messages.h" | ||
27 | |||
28 | #include "gnunet_messenger_service.h" | ||
29 | #include "messenger_api_message.h" | ||
30 | |||
31 | void | ||
32 | init_queue_messages (struct GNUNET_MESSENGER_QueueMessages *messages) | ||
33 | { | ||
34 | GNUNET_assert (messages); | ||
35 | |||
36 | messages->head = NULL; | ||
37 | messages->tail = NULL; | ||
38 | } | ||
39 | |||
40 | |||
41 | void | ||
42 | clear_queue_messages (struct GNUNET_MESSENGER_QueueMessages *messages) | ||
43 | { | ||
44 | GNUNET_assert (messages); | ||
45 | |||
46 | while (messages->head) | ||
47 | { | ||
48 | struct GNUNET_MESSENGER_QueueMessage *element = messages->head; | ||
49 | |||
50 | GNUNET_CONTAINER_DLL_remove (messages->head, messages->tail, element); | ||
51 | |||
52 | if (element->message) | ||
53 | destroy_message (element->message); | ||
54 | |||
55 | if (element->transcript) | ||
56 | destroy_message (element->transcript); | ||
57 | |||
58 | GNUNET_free (element); | ||
59 | } | ||
60 | |||
61 | messages->head = NULL; | ||
62 | messages->tail = NULL; | ||
63 | } | ||
64 | |||
65 | |||
66 | void | ||
67 | enqueue_to_messages (struct GNUNET_MESSENGER_QueueMessages *messages, | ||
68 | const struct GNUNET_CRYPTO_PrivateKey *sender, | ||
69 | struct GNUNET_MESSENGER_Message *message, | ||
70 | struct GNUNET_MESSENGER_Message *transcript, | ||
71 | enum GNUNET_GenericReturnValue priority) | ||
72 | { | ||
73 | GNUNET_assert ((messages) && (sender) && (message)); | ||
74 | |||
75 | struct GNUNET_MESSENGER_QueueMessage *element = GNUNET_new (struct | ||
76 | GNUNET_MESSENGER_QueueMessage); | ||
77 | |||
78 | if (! element) | ||
79 | return; | ||
80 | |||
81 | element->message = message; | ||
82 | element->transcript = transcript; | ||
83 | |||
84 | GNUNET_memcpy (&(element->sender), sender, sizeof (element->sender)); | ||
85 | |||
86 | if (! element->message) | ||
87 | { | ||
88 | if (element->transcript) | ||
89 | destroy_message (element->transcript); | ||
90 | |||
91 | GNUNET_free (element); | ||
92 | return; | ||
93 | } | ||
94 | |||
95 | if (GNUNET_YES == priority) | ||
96 | GNUNET_CONTAINER_DLL_insert (messages->head, messages->tail, element); | ||
97 | else | ||
98 | GNUNET_CONTAINER_DLL_insert_tail (messages->head, messages->tail, element); | ||
99 | } | ||
100 | |||
101 | |||
102 | struct GNUNET_MESSENGER_Message* | ||
103 | dequeue_from_messages (struct GNUNET_MESSENGER_QueueMessages *messages, | ||
104 | struct GNUNET_CRYPTO_PrivateKey *sender, | ||
105 | struct GNUNET_MESSENGER_Message **transcript) | ||
106 | { | ||
107 | GNUNET_assert (messages); | ||
108 | |||
109 | struct GNUNET_MESSENGER_QueueMessage *element = messages->head; | ||
110 | |||
111 | if (! element) | ||
112 | { | ||
113 | if (transcript) | ||
114 | *transcript = NULL; | ||
115 | |||
116 | return NULL; | ||
117 | } | ||
118 | |||
119 | struct GNUNET_MESSENGER_Message *message = element->message; | ||
120 | |||
121 | if (transcript) | ||
122 | *transcript = element->transcript; | ||
123 | else if (element->transcript) | ||
124 | destroy_message (element->transcript); | ||
125 | |||
126 | GNUNET_CONTAINER_DLL_remove (messages->head, messages->tail, element); | ||
127 | |||
128 | if (sender) | ||
129 | GNUNET_memcpy (sender, &(element->sender), sizeof (*sender)); | ||
130 | |||
131 | GNUNET_free (element); | ||
132 | return message; | ||
133 | } | ||