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e0dfa761 PP |
1 | /* |
2 | * Copyright 2017 Philippe Proulx <pproulx@efficios.com> | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | * of this software and associated documentation files (the "Software"), to deal | |
6 | * in the Software without restriction, including without limitation the rights | |
7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 | * copies of the Software, and to permit persons to whom the Software is | |
9 | * furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
20 | * SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <babeltrace/plugin/plugin-dev.h> | |
24 | #include <babeltrace/component/component.h> | |
25 | #include <babeltrace/component/component-sink.h> | |
26 | #include <babeltrace/component/notification/iterator.h> | |
27 | #include <babeltrace/component/notification/notification.h> | |
c2b71c92 | 28 | #include <plugins-common.h> |
e0dfa761 | 29 | #include <assert.h> |
c2b71c92 JG |
30 | #include "dummy.h" |
31 | ||
32 | static | |
33 | void destroy_private_dummy_data(struct dummy *dummy) | |
34 | { | |
35 | if (dummy->iterators) { | |
36 | g_ptr_array_free(dummy->iterators, TRUE); | |
37 | } | |
38 | g_free(dummy); | |
39 | } | |
40 | ||
41 | void dummy_destroy(struct bt_component *component) | |
42 | { | |
43 | struct dummy *dummy; | |
44 | ||
45 | assert(component); | |
46 | dummy = bt_component_get_private_data(component); | |
47 | assert(dummy); | |
48 | destroy_private_dummy_data(dummy); | |
49 | } | |
50 | ||
51 | enum bt_component_status dummy_init(struct bt_component *component, | |
52 | struct bt_value *params, UNUSED_VAR void *init_method_data) | |
53 | { | |
54 | enum bt_component_status ret; | |
55 | struct dummy *dummy = g_new0(struct dummy, 1); | |
56 | ||
57 | if (!dummy) { | |
58 | ret = BT_COMPONENT_STATUS_NOMEM; | |
59 | goto end; | |
60 | } | |
61 | ||
62 | dummy->iterators = g_ptr_array_new_with_free_func( | |
63 | (GDestroyNotify) bt_put); | |
64 | if (!dummy->iterators) { | |
65 | ret = BT_COMPONENT_STATUS_NOMEM; | |
66 | goto end; | |
67 | } | |
68 | ||
69 | ret = bt_component_set_private_data(component, dummy); | |
70 | if (ret != BT_COMPONENT_STATUS_OK) { | |
71 | goto error; | |
72 | } | |
73 | end: | |
74 | return ret; | |
75 | error: | |
76 | destroy_private_dummy_data(dummy); | |
77 | return ret; | |
78 | } | |
79 | ||
72b913fb PP |
80 | enum bt_component_status dummy_accept_port_connection(struct bt_component *component, |
81 | struct bt_port *self_port) | |
c2b71c92 JG |
82 | { |
83 | enum bt_component_status ret = BT_COMPONENT_STATUS_OK; | |
c2b71c92 | 84 | struct dummy *dummy; |
72b913fb | 85 | struct bt_connection *connection; |
c2b71c92 JG |
86 | struct bt_notification_iterator *iterator; |
87 | ||
c2b71c92 JG |
88 | dummy = bt_component_get_private_data(component); |
89 | assert(dummy); | |
90 | ||
72b913fb PP |
91 | connection = bt_port_get_connection(self_port); |
92 | assert(connection); | |
93 | ||
c2b71c92 JG |
94 | iterator = bt_connection_create_notification_iterator(connection); |
95 | if (!iterator) { | |
96 | ret = BT_COMPONENT_STATUS_ERROR; | |
97 | goto end; | |
98 | } | |
99 | ||
100 | g_ptr_array_add(dummy->iterators, iterator); | |
101 | end: | |
72b913fb | 102 | bt_put(connection); |
c2b71c92 JG |
103 | return ret; |
104 | } | |
e0dfa761 PP |
105 | |
106 | enum bt_component_status dummy_consume(struct bt_component *component) | |
107 | { | |
108 | enum bt_component_status ret; | |
109 | struct bt_notification *notif = NULL; | |
e0dfa761 | 110 | size_t i; |
c2b71c92 | 111 | struct dummy *dummy; |
e0dfa761 | 112 | |
c2b71c92 JG |
113 | dummy = bt_component_get_private_data(component); |
114 | assert(dummy); | |
e0dfa761 | 115 | |
c2b71c92 JG |
116 | /* Consume one notification from each iterator. */ |
117 | for (i = 0; i < dummy->iterators->len; i++) { | |
118 | struct bt_notification_iterator *it; | |
e0dfa761 PP |
119 | enum bt_notification_iterator_status it_ret; |
120 | ||
c2b71c92 JG |
121 | it = g_ptr_array_index(dummy->iterators, i); |
122 | ||
e0dfa761 PP |
123 | it_ret = bt_notification_iterator_next(it); |
124 | switch (it_ret) { | |
125 | case BT_NOTIFICATION_ITERATOR_STATUS_ERROR: | |
126 | ret = BT_COMPONENT_STATUS_ERROR; | |
127 | goto end; | |
128 | case BT_NOTIFICATION_ITERATOR_STATUS_END: | |
129 | ret = BT_COMPONENT_STATUS_END; | |
c2b71c92 JG |
130 | g_ptr_array_remove_index(dummy->iterators, i); |
131 | i--; | |
e0dfa761 PP |
132 | continue; |
133 | default: | |
134 | break; | |
135 | } | |
136 | ||
137 | notif = bt_notification_iterator_get_notification(it); | |
138 | if (!notif) { | |
139 | ret = BT_COMPONENT_STATUS_ERROR; | |
140 | goto end; | |
141 | } | |
142 | ||
143 | /* | |
144 | * Dummy! I'm doing nothing with this notification, | |
145 | * NOTHING. | |
146 | */ | |
e0dfa761 PP |
147 | BT_PUT(notif); |
148 | } | |
149 | ||
c2b71c92 | 150 | if (dummy->iterators->len == 0) { |
e0dfa761 PP |
151 | ret = BT_COMPONENT_STATUS_END; |
152 | } | |
e0dfa761 | 153 | end: |
e0dfa761 PP |
154 | bt_put(notif); |
155 | return ret; | |
156 | } |