Document libbabeltrace2's C API
[babeltrace.git] / src / lib / graph / message / message.c
1 /*
2 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
3 * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24 #define BT_LOG_TAG "LIB/MSG"
25 #include "lib/logging.h"
26
27 #include "common/assert.h"
28 #include "lib/assert-pre.h"
29 #include "lib/assert-post.h"
30 #include <babeltrace2/graph/message.h>
31 #include "lib/graph/message/message.h"
32 #include "lib/graph/graph.h"
33
34 BT_HIDDEN
35 void bt_message_init(struct bt_message *message,
36 enum bt_message_type type,
37 bt_object_release_func release,
38 struct bt_graph *graph)
39 {
40 message->type = type;
41 bt_object_init_shared(&message->base, release);
42 message->graph = graph;
43
44 if (graph) {
45 bt_graph_add_message(graph, message);
46 }
47 }
48
49 enum bt_message_type bt_message_get_type(
50 const struct bt_message *message)
51 {
52 BT_ASSERT_PRE_DEV_NON_NULL(message, "Message");
53 return message->type;
54 }
55
56 BT_HIDDEN
57 void bt_message_unlink_graph(struct bt_message *msg)
58 {
59 BT_ASSERT(msg);
60 msg->graph = NULL;
61 }
62
63 void bt_message_get_ref(const struct bt_message *message)
64 {
65 bt_object_get_ref(message);
66 }
67
68 void bt_message_put_ref(const struct bt_message *message)
69 {
70 bt_object_put_ref(message);
71 }
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