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47e5a032 JG |
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> | |
b8a06801 | 30 | #include <babeltrace/ref.h> |
47e5a032 JG |
31 | #include <babeltrace/plugin/component.h> |
32 | #include <babeltrace/plugin/source-internal.h> | |
33 | #include <babeltrace/plugin/notification/iterator.h> | |
34 | #include <babeltrace/plugin/notification/iterator-internal.h> | |
35 | ||
36 | static | |
b8a06801 | 37 | void bt_notification_iterator_destroy(struct bt_object *obj) |
47e5a032 | 38 | { |
8738a040 JG |
39 | struct bt_notification_iterator *iterator; |
40 | ||
b8a06801 JG |
41 | assert(obj); |
42 | iterator = container_of(obj, struct bt_notification_iterator, | |
43 | base); | |
8738a040 | 44 | assert(iterator->user_destroy || !iterator->user_data); |
512ccb99 JG |
45 | if (iterator->user_destroy) { |
46 | iterator->user_destroy(iterator); | |
47 | } | |
413bc2c4 | 48 | BT_PUT(iterator->component); |
8738a040 | 49 | g_free(iterator); |
47e5a032 JG |
50 | } |
51 | ||
52 | BT_HIDDEN | |
53 | struct bt_notification_iterator *bt_notification_iterator_create( | |
54 | struct bt_component *component) | |
55 | { | |
56 | struct bt_notification_iterator *iterator = NULL; | |
57 | ||
8738a040 JG |
58 | if (!component || |
59 | bt_component_get_type(component) != BT_COMPONENT_TYPE_SOURCE) { | |
47e5a032 JG |
60 | goto end; |
61 | } | |
62 | ||
63 | iterator = g_new0(struct bt_notification_iterator, 1); | |
64 | if (!iterator) { | |
65 | goto end; | |
66 | } | |
67 | ||
413bc2c4 | 68 | iterator->component = bt_get(component); |
b8a06801 | 69 | bt_object_init(iterator, bt_notification_iterator_destroy); |
47e5a032 JG |
70 | end: |
71 | return iterator; | |
72 | } | |
73 | ||
74 | BT_HIDDEN | |
75 | enum bt_notification_iterator_status bt_notification_iterator_validate( | |
76 | struct bt_notification_iterator *iterator) | |
77 | { | |
8738a040 | 78 | enum bt_notification_iterator_status ret = |
ea8d3e58 | 79 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
47e5a032 JG |
80 | |
81 | if (!iterator || !iterator->get || !iterator->next) { | |
82 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL; | |
83 | goto end; | |
84 | } | |
85 | end: | |
86 | return ret; | |
87 | } | |
88 | ||
8738a040 JG |
89 | enum bt_notification_iterator_status bt_notification_iterator_set_get_cb( |
90 | struct bt_notification_iterator *iterator, | |
91 | bt_notification_iterator_get_cb get) | |
92 | { | |
33bceaf8 | 93 | enum bt_notification_iterator_status ret = |
ea8d3e58 | 94 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
8738a040 JG |
95 | |
96 | if (!iterator || !get) { | |
97 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL; | |
98 | goto end; | |
99 | } | |
100 | ||
ea8d3e58 JG |
101 | iterator->get = get; |
102 | end: | |
103 | return ret; | |
104 | } | |
105 | ||
106 | enum bt_notification_iterator_status | |
107 | bt_notification_iterator_set_next_cb(struct bt_notification_iterator *iterator, | |
108 | bt_notification_iterator_next_cb next) | |
109 | { | |
110 | enum bt_notification_iterator_status ret = | |
111 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
112 | ||
113 | if (!iterator || !next) { | |
114 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL; | |
115 | goto end; | |
116 | } | |
117 | ||
118 | iterator->next = next; | |
119 | end: | |
120 | return ret; | |
121 | } | |
122 | ||
123 | enum bt_notification_iterator_status | |
124 | bt_notification_iterator_set_destroy_cb( | |
125 | struct bt_notification_iterator *iterator, | |
126 | bt_notification_iterator_destroy_cb destroy) | |
127 | { | |
128 | enum bt_notification_iterator_status ret = | |
129 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
130 | ||
131 | if (!iterator || !destroy) { | |
132 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL; | |
133 | goto end; | |
134 | } | |
135 | ||
136 | iterator->user_destroy = destroy; | |
137 | end: | |
138 | return ret; | |
139 | } | |
140 | ||
141 | void *bt_notification_iterator_get_private_data( | |
142 | struct bt_notification_iterator *iterator) | |
143 | { | |
144 | return iterator ? iterator->user_data : NULL; | |
145 | } | |
146 | ||
147 | enum bt_notification_iterator_status | |
148 | bt_notification_iterator_set_private_data( | |
149 | struct bt_notification_iterator *iterator, void *data) | |
150 | { | |
151 | enum bt_notification_iterator_status ret = | |
152 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
153 | ||
154 | if (!iterator || !data) { | |
155 | ret = BT_NOTIFICATION_ITERATOR_STATUS_INVAL; | |
156 | goto end; | |
157 | } | |
158 | ||
159 | iterator->user_data = data; | |
8738a040 JG |
160 | end: |
161 | return ret; | |
162 | } | |
413bc2c4 | 163 | |
53d45b87 JG |
164 | struct bt_notification *bt_notification_iterator_get_notification( |
165 | struct bt_notification_iterator *iterator) | |
166 | { | |
167 | assert(iterator); | |
168 | assert(iterator->get); | |
169 | return iterator->get(iterator); | |
170 | } | |
171 | ||
172 | enum bt_notification_iterator_status | |
173 | bt_notification_iterator_next(struct bt_notification_iterator *iterator) | |
174 | { | |
175 | assert(iterator); | |
176 | assert(iterator->next); | |
177 | return iterator->next(iterator); | |
178 | } | |
179 | ||
413bc2c4 JG |
180 | struct bt_component *bt_notification_iterator_get_component( |
181 | struct bt_notification_iterator *iterator) | |
182 | { | |
183 | return bt_get(iterator->component); | |
184 | } | |
185 |