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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> | |
b2e0c907 PP |
24 | #include <babeltrace/graph/component.h> |
25 | #include <babeltrace/graph/private-component.h> | |
b9d103be | 26 | #include <babeltrace/graph/private-component-sink.h> |
b2e0c907 PP |
27 | #include <babeltrace/graph/private-port.h> |
28 | #include <babeltrace/graph/port.h> | |
29 | #include <babeltrace/graph/private-connection.h> | |
30 | #include <babeltrace/graph/component-sink.h> | |
31 | #include <babeltrace/graph/notification-iterator.h> | |
32 | #include <babeltrace/graph/notification.h> | |
0d8b4d8e | 33 | #include <babeltrace/babeltrace-internal.h> |
c2b71c92 | 34 | #include <plugins-common.h> |
e0dfa761 | 35 | #include <assert.h> |
c2b71c92 JG |
36 | #include "dummy.h" |
37 | ||
38 | static | |
39 | void destroy_private_dummy_data(struct dummy *dummy) | |
40 | { | |
41 | if (dummy->iterators) { | |
42 | g_ptr_array_free(dummy->iterators, TRUE); | |
43 | } | |
44 | g_free(dummy); | |
45 | } | |
46 | ||
64cadc66 | 47 | void dummy_finalize(struct bt_private_component *component) |
c2b71c92 JG |
48 | { |
49 | struct dummy *dummy; | |
50 | ||
51 | assert(component); | |
890882ef | 52 | dummy = bt_private_component_get_user_data(component); |
c2b71c92 JG |
53 | assert(dummy); |
54 | destroy_private_dummy_data(dummy); | |
55 | } | |
56 | ||
890882ef | 57 | enum bt_component_status dummy_init(struct bt_private_component *component, |
c2b71c92 JG |
58 | struct bt_value *params, UNUSED_VAR void *init_method_data) |
59 | { | |
60 | enum bt_component_status ret; | |
61 | struct dummy *dummy = g_new0(struct dummy, 1); | |
b9d103be | 62 | void *priv_port; |
c2b71c92 JG |
63 | |
64 | if (!dummy) { | |
65 | ret = BT_COMPONENT_STATUS_NOMEM; | |
66 | goto end; | |
67 | } | |
68 | ||
b9d103be PP |
69 | priv_port = bt_private_component_sink_add_input_private_port(component, |
70 | "in", NULL); | |
71 | if (!priv_port) { | |
72 | ret = BT_COMPONENT_STATUS_NOMEM; | |
73 | goto end; | |
74 | } | |
75 | ||
76 | bt_put(priv_port); | |
c2b71c92 JG |
77 | dummy->iterators = g_ptr_array_new_with_free_func( |
78 | (GDestroyNotify) bt_put); | |
79 | if (!dummy->iterators) { | |
80 | ret = BT_COMPONENT_STATUS_NOMEM; | |
81 | goto end; | |
82 | } | |
83 | ||
890882ef | 84 | ret = bt_private_component_set_user_data(component, dummy); |
c2b71c92 JG |
85 | if (ret != BT_COMPONENT_STATUS_OK) { |
86 | goto error; | |
87 | } | |
88 | end: | |
89 | return ret; | |
90 | error: | |
91 | destroy_private_dummy_data(dummy); | |
92 | return ret; | |
93 | } | |
94 | ||
0d8b4d8e | 95 | void dummy_port_connected( |
890882ef | 96 | struct bt_private_component *component, |
8f4799f7 PP |
97 | struct bt_private_port *self_port, |
98 | struct bt_port *other_port) | |
c2b71c92 | 99 | { |
c2b71c92 JG |
100 | struct dummy *dummy; |
101 | struct bt_notification_iterator *iterator; | |
890882ef | 102 | struct bt_private_connection *connection; |
c2b71c92 | 103 | |
890882ef | 104 | dummy = bt_private_component_get_user_data(component); |
c2b71c92 | 105 | assert(dummy); |
890882ef | 106 | connection = bt_private_port_get_private_connection(self_port); |
72b913fb | 107 | assert(connection); |
890882ef | 108 | iterator = bt_private_connection_create_notification_iterator( |
fa054faf | 109 | connection, NULL); |
c2b71c92 | 110 | if (!iterator) { |
0d8b4d8e | 111 | dummy->error = true; |
c2b71c92 JG |
112 | goto end; |
113 | } | |
114 | ||
115 | g_ptr_array_add(dummy->iterators, iterator); | |
0d8b4d8e | 116 | |
c2b71c92 | 117 | end: |
72b913fb | 118 | bt_put(connection); |
c2b71c92 | 119 | } |
e0dfa761 | 120 | |
890882ef | 121 | enum bt_component_status dummy_consume(struct bt_private_component *component) |
e0dfa761 | 122 | { |
8812600c | 123 | enum bt_component_status ret = BT_COMPONENT_STATUS_OK; |
e0dfa761 | 124 | struct bt_notification *notif = NULL; |
e0dfa761 | 125 | size_t i; |
c2b71c92 | 126 | struct dummy *dummy; |
e0dfa761 | 127 | |
890882ef | 128 | dummy = bt_private_component_get_user_data(component); |
c2b71c92 | 129 | assert(dummy); |
e0dfa761 | 130 | |
0d8b4d8e PP |
131 | if (unlikely(dummy->error)) { |
132 | ret = BT_COMPONENT_STATUS_ERROR; | |
133 | goto end; | |
134 | } | |
135 | ||
c2b71c92 JG |
136 | /* Consume one notification from each iterator. */ |
137 | for (i = 0; i < dummy->iterators->len; i++) { | |
138 | struct bt_notification_iterator *it; | |
e0dfa761 PP |
139 | enum bt_notification_iterator_status it_ret; |
140 | ||
c2b71c92 JG |
141 | it = g_ptr_array_index(dummy->iterators, i); |
142 | ||
e0dfa761 PP |
143 | it_ret = bt_notification_iterator_next(it); |
144 | switch (it_ret) { | |
145 | case BT_NOTIFICATION_ITERATOR_STATUS_ERROR: | |
146 | ret = BT_COMPONENT_STATUS_ERROR; | |
147 | goto end; | |
8812600c PP |
148 | case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN: |
149 | ret = BT_COMPONENT_STATUS_AGAIN; | |
150 | goto end; | |
e0dfa761 | 151 | case BT_NOTIFICATION_ITERATOR_STATUS_END: |
c2b71c92 JG |
152 | g_ptr_array_remove_index(dummy->iterators, i); |
153 | i--; | |
e0dfa761 PP |
154 | continue; |
155 | default: | |
156 | break; | |
157 | } | |
e0dfa761 PP |
158 | } |
159 | ||
c2b71c92 | 160 | if (dummy->iterators->len == 0) { |
e0dfa761 PP |
161 | ret = BT_COMPONENT_STATUS_END; |
162 | } | |
e0dfa761 | 163 | end: |
e0dfa761 PP |
164 | bt_put(notif); |
165 | return ret; | |
166 | } |