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706a18f9 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 | #define BT_LOG_TAG "COLANDER" | |
24 | #include <babeltrace/lib-logging-internal.h> | |
25 | ||
6f998913 | 26 | #include <babeltrace/object.h> |
9f03ab25 | 27 | #include <babeltrace/graph/component-class-sink.h> |
110ebe2b PP |
28 | #include <babeltrace/graph/self-component-sink.h> |
29 | #include <babeltrace/graph/self-component-port.h> | |
30 | #include <babeltrace/graph/self-component-port-input-notification-iterator.h> | |
31 | #include <babeltrace/graph/self-component.h> | |
8ed535b5 | 32 | #include <babeltrace/graph/component-class-sink-colander-internal.h> |
1d2f35fd | 33 | #include <babeltrace/assert-internal.h> |
706a18f9 | 34 | #include <glib.h> |
706a18f9 PP |
35 | |
36 | static | |
9f03ab25 | 37 | struct bt_component_class_sink *colander_comp_cls; |
706a18f9 PP |
38 | |
39 | struct colander_data { | |
9f03ab25 | 40 | bt_notification_array_const notifs; |
0d6f8bf6 | 41 | uint64_t *count_addr; |
110ebe2b | 42 | struct bt_self_component_port_input_notification_iterator *notif_iter; |
706a18f9 PP |
43 | }; |
44 | ||
45 | static | |
110ebe2b PP |
46 | enum bt_self_component_status colander_init( |
47 | struct bt_self_component_sink *self_comp, | |
600aa0de | 48 | const struct bt_value *params, void *init_method_data) |
706a18f9 | 49 | { |
110ebe2b | 50 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
706a18f9 | 51 | struct colander_data *colander_data = NULL; |
8ed535b5 PP |
52 | struct bt_component_class_sink_colander_data *user_provided_data = |
53 | init_method_data; | |
706a18f9 PP |
54 | |
55 | if (!init_method_data) { | |
56 | BT_LOGW_STR("Component initialization method data is NULL."); | |
110ebe2b | 57 | status = BT_SELF_COMPONENT_STATUS_ERROR; |
706a18f9 PP |
58 | goto end; |
59 | } | |
60 | ||
61 | colander_data = g_new0(struct colander_data, 1); | |
62 | if (!colander_data) { | |
63 | BT_LOGE_STR("Failed to allocate colander data."); | |
110ebe2b | 64 | status = BT_SELF_COMPONENT_STATUS_NOMEM; |
706a18f9 PP |
65 | goto end; |
66 | } | |
67 | ||
0d6f8bf6 PP |
68 | colander_data->notifs = user_provided_data->notifs; |
69 | colander_data->count_addr = user_provided_data->count_addr; | |
110ebe2b PP |
70 | status = bt_self_component_sink_add_input_port(self_comp, "in", |
71 | NULL, NULL); | |
72 | if (status != BT_SELF_COMPONENT_STATUS_OK) { | |
706a18f9 PP |
73 | BT_LOGE_STR("Cannot add input port."); |
74 | goto end; | |
75 | } | |
76 | ||
110ebe2b | 77 | bt_self_component_set_data( |
5bb6a6f1 | 78 | bt_self_component_sink_as_self_component(self_comp), |
110ebe2b | 79 | colander_data); |
706a18f9 PP |
80 | |
81 | end: | |
82 | return status; | |
83 | } | |
84 | ||
85 | static | |
110ebe2b | 86 | void colander_finalize(struct bt_self_component_sink *self_comp) |
706a18f9 PP |
87 | { |
88 | struct colander_data *colander_data = | |
110ebe2b | 89 | bt_self_component_get_data( |
5bb6a6f1 | 90 | bt_self_component_sink_as_self_component(self_comp)); |
706a18f9 PP |
91 | |
92 | if (!colander_data) { | |
93 | return; | |
94 | } | |
95 | ||
110ebe2b | 96 | BT_OBJECT_PUT_REF_AND_RESET(colander_data->notif_iter); |
706a18f9 PP |
97 | g_free(colander_data); |
98 | } | |
99 | ||
100 | static | |
110ebe2b PP |
101 | enum bt_self_component_status colander_input_port_connected( |
102 | struct bt_self_component_sink *self_comp, | |
103 | struct bt_self_component_port_input *self_port, | |
9f03ab25 | 104 | const struct bt_port_output *other_port) |
706a18f9 | 105 | { |
110ebe2b | 106 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
706a18f9 | 107 | struct colander_data *colander_data = |
110ebe2b | 108 | bt_self_component_get_data( |
5bb6a6f1 | 109 | bt_self_component_sink_as_self_component(self_comp)); |
706a18f9 | 110 | |
1d2f35fd | 111 | BT_ASSERT(colander_data); |
6f998913 | 112 | BT_OBJECT_PUT_REF_AND_RESET(colander_data->notif_iter); |
110ebe2b PP |
113 | colander_data->notif_iter = |
114 | bt_self_component_port_input_notification_iterator_create( | |
115 | self_port); | |
116 | if (!colander_data->notif_iter) { | |
117 | BT_LIB_LOGE("Cannot create notification iterator on " | |
118 | "self component input port: %![port-]+p", | |
119 | self_port); | |
120 | status = BT_SELF_COMPONENT_STATUS_NOMEM; | |
706a18f9 PP |
121 | goto end; |
122 | } | |
123 | ||
124 | end: | |
1f40c0ec | 125 | return status; |
706a18f9 PP |
126 | } |
127 | ||
128 | static | |
110ebe2b PP |
129 | enum bt_self_component_status colander_consume( |
130 | struct bt_self_component_sink *self_comp) | |
706a18f9 | 131 | { |
110ebe2b | 132 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
706a18f9 | 133 | enum bt_notification_iterator_status notif_iter_status; |
706a18f9 | 134 | struct colander_data *colander_data = |
110ebe2b | 135 | bt_self_component_get_data( |
5bb6a6f1 | 136 | bt_self_component_sink_as_self_component(self_comp)); |
9f03ab25 | 137 | bt_notification_array_const notifs; |
706a18f9 | 138 | |
1d2f35fd | 139 | BT_ASSERT(colander_data); |
706a18f9 PP |
140 | |
141 | if (!colander_data->notif_iter) { | |
110ebe2b PP |
142 | BT_LIB_LOGW("Trying to consume without an " |
143 | "upstream notification iterator: %![comp-]+c", | |
144 | self_comp); | |
706a18f9 PP |
145 | goto end; |
146 | } | |
147 | ||
110ebe2b PP |
148 | notif_iter_status = |
149 | bt_self_component_port_input_notification_iterator_next( | |
150 | colander_data->notif_iter, ¬ifs, | |
151 | colander_data->count_addr); | |
706a18f9 PP |
152 | switch (notif_iter_status) { |
153 | case BT_NOTIFICATION_ITERATOR_STATUS_CANCELED: | |
110ebe2b | 154 | status = BT_SELF_COMPONENT_STATUS_OK; |
706a18f9 PP |
155 | goto end; |
156 | case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN: | |
110ebe2b | 157 | status = BT_SELF_COMPONENT_STATUS_AGAIN; |
706a18f9 PP |
158 | goto end; |
159 | case BT_NOTIFICATION_ITERATOR_STATUS_END: | |
110ebe2b | 160 | status = BT_SELF_COMPONENT_STATUS_END; |
706a18f9 PP |
161 | goto end; |
162 | case BT_NOTIFICATION_ITERATOR_STATUS_OK: | |
0d6f8bf6 PP |
163 | /* Move notifications to user (count already set) */ |
164 | memcpy(colander_data->notifs, notifs, | |
165 | sizeof(*notifs) * *colander_data->count_addr); | |
706a18f9 PP |
166 | break; |
167 | default: | |
110ebe2b | 168 | status = BT_SELF_COMPONENT_STATUS_ERROR; |
706a18f9 PP |
169 | goto end; |
170 | } | |
171 | ||
706a18f9 | 172 | end: |
706a18f9 PP |
173 | return status; |
174 | } | |
175 | ||
110ebe2b | 176 | struct bt_component_class_sink *bt_component_class_sink_colander_get(void) |
706a18f9 PP |
177 | { |
178 | if (colander_comp_cls) { | |
179 | goto end; | |
180 | } | |
181 | ||
9f03ab25 PP |
182 | colander_comp_cls = bt_component_class_sink_create("colander", |
183 | colander_consume); | |
706a18f9 PP |
184 | if (!colander_comp_cls) { |
185 | BT_LOGE_STR("Cannot create sink colander component class."); | |
186 | goto end; | |
187 | } | |
188 | ||
9f03ab25 | 189 | (void) bt_component_class_sink_set_init_method( |
110ebe2b | 190 | colander_comp_cls, colander_init); |
9f03ab25 | 191 | (void) bt_component_class_sink_set_finalize_method( |
110ebe2b | 192 | colander_comp_cls, colander_finalize); |
9f03ab25 | 193 | (void) bt_component_class_sink_set_input_port_connected_method( |
110ebe2b | 194 | colander_comp_cls, colander_input_port_connected); |
706a18f9 PP |
195 | |
196 | end: | |
776bffc4 PP |
197 | bt_object_get_ref(colander_comp_cls); |
198 | return (void *) colander_comp_cls; | |
706a18f9 PP |
199 | } |
200 | ||
201 | __attribute__((destructor)) static | |
202 | void put_colander(void) { | |
6f998913 | 203 | BT_OBJECT_PUT_REF_AND_RESET(colander_comp_cls); |
706a18f9 | 204 | } |