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0777b693 JG |
1 | /* |
2 | * source.c | |
3 | * | |
0d884c50 | 4 | * Babeltrace Source Component |
0777b693 JG |
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 | ||
fd0f910d | 29 | #include <babeltrace/compiler.h> |
0777b693 | 30 | #include <babeltrace/plugin/source-internal.h> |
0d884c50 | 31 | #include <babeltrace/plugin/component-internal.h> |
47e5a032 JG |
32 | #include <babeltrace/plugin/notification/iterator.h> |
33 | #include <babeltrace/plugin/notification/iterator-internal.h> | |
0777b693 JG |
34 | |
35 | static | |
0d884c50 | 36 | void bt_component_source_destroy(struct bt_component *component) |
0777b693 | 37 | { |
0d884c50 | 38 | struct bt_component_source *source; |
0777b693 | 39 | |
0d884c50 | 40 | if (!component) { |
0777b693 JG |
41 | return; |
42 | } | |
43 | ||
0d884c50 | 44 | source = container_of(component, struct bt_component_source, parent); |
0777b693 JG |
45 | g_free(source); |
46 | } | |
47 | ||
8738a040 JG |
48 | BT_HIDDEN |
49 | struct bt_component *bt_component_source_create(const char *name) | |
0777b693 | 50 | { |
0d884c50 JG |
51 | struct bt_component_source *source = NULL; |
52 | enum bt_component_status ret; | |
0d884c50 | 53 | source = g_new0(struct bt_component_source, 1); |
0777b693 JG |
54 | if (!source) { |
55 | goto end; | |
56 | } | |
57 | ||
8738a040 JG |
58 | ret = bt_component_init(&source->parent, name, |
59 | BT_COMPONENT_TYPE_SOURCE, bt_component_source_destroy); | |
0d884c50 | 60 | if (ret != BT_COMPONENT_STATUS_OK) { |
0777b693 JG |
61 | g_free(source); |
62 | source = NULL; | |
63 | goto end; | |
64 | } | |
0777b693 JG |
65 | end: |
66 | return source ? &source->parent : NULL; | |
67 | } | |
47e5a032 JG |
68 | |
69 | struct bt_notification_iterator *bt_plugin_source_create_iterator( | |
70 | struct bt_component *component) | |
71 | { | |
72 | enum bt_component_status ret_component; | |
73 | enum bt_notification_iterator_status ret_iterator; | |
74 | struct bt_component_source *source; | |
75 | struct bt_notification_iterator *iterator = NULL; | |
76 | ||
77 | if (!component) { | |
78 | goto end; | |
79 | } | |
80 | ||
81 | if (bt_component_get_type(component) != BT_COMPONENT_TYPE_SOURCE) { | |
82 | goto end; | |
83 | } | |
84 | ||
85 | iterator = bt_notification_iterator_create(component); | |
86 | if (!iterator) { | |
87 | goto end; | |
88 | } | |
89 | ||
90 | source = container_of(component, struct bt_component_source, parent); | |
91 | assert(source->init_iterator); | |
92 | ret_component = source->init_iterator(component, iterator); | |
93 | if (ret_component != BT_COMPONENT_STATUS_OK) { | |
94 | goto error; | |
95 | } | |
96 | ||
97 | ret_iterator = bt_notification_iterator_validate(iterator); | |
98 | if (ret_iterator != BT_NOTIFICATION_ITERATOR_STATUS_OK) { | |
99 | goto error; | |
100 | } | |
101 | end: | |
102 | return iterator; | |
103 | error: | |
104 | bt_notification_iterator_put(iterator); | |
105 | return NULL; | |
106 | } |