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[babeltrace.git] / plugins / iterator.c
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CommitLineData
1/*
2 * iterator.c
3 *
4 * Babeltrace Notification Iterator
5 *
6 * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
7 *
8 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * SOFTWARE.
27 */
28
29#include <babeltrace/compiler.h>
30#include <babeltrace/plugin/component.h>
31#include <babeltrace/plugin/source-internal.h>
32#include <babeltrace/plugin/notification/iterator.h>
33#include <babeltrace/plugin/notification/iterator-internal.h>
34
35static
36void bt_notification_iterator_destroy(struct bt_notification_iterator *iterator)
37{
38
39}
40
41BT_HIDDEN
42struct bt_notification_iterator *bt_notification_iterator_create(
43 struct bt_component *component)
44{
45 struct bt_notification_iterator *iterator = NULL;
46
47 if (!component || bt_component_get_type(component) != BT_COMPONENT_TYPE_SOURCE) {
48 goto end;
49 }
50
51 iterator = g_new0(struct bt_notification_iterator, 1);
52 if (!iterator) {
53 goto end;
54 }
55
56 bt_ctf_ref_init(&iterator->ref_count);
57end:
58 return iterator;
59}
60
61BT_HIDDEN
62enum bt_notification_iterator_status bt_notification_iterator_validate(
63 struct bt_notification_iterator *iterator)
64{
65 enum bt_notification_iterator_status ret = BT_NOTIFICATION_ITERATOR_STATUS_OK;
66
67 if (!iterator || !iterator->get || !iterator->next) {
68 ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL;
69 goto end;
70 }
71end:
72 return ret;
73}
74
75void bt_notification_iterator_get(struct bt_notification_iterator *iterator)
76{
77 if (!iterator) {
78 return;
79 }
80
81 bt_ctf_ref_get(&iterator->ref_count);
82}
83
84void bt_notification_iterator_put(struct bt_notification_iterator *iterator)
85{
86 if (!iterator) {
87 return;
88 }
89
90 bt_ctf_ref_put(&iterator->ref_count, bt_notification_iterator_destroy);
91}
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