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706a18f9 | 1 | /* |
e2f7325d | 2 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
706a18f9 PP |
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 | ||
c5b9b441 PP |
26 | #include <babeltrace/assert-internal.h> |
27 | #include <babeltrace/assert-pre-internal.h> | |
28 | #include <babeltrace/object-internal.h> | |
0d72b8c3 | 29 | #include <babeltrace/graph/component-class-sink.h> |
d94d92ac PP |
30 | #include <babeltrace/graph/self-component-sink.h> |
31 | #include <babeltrace/graph/self-component-port.h> | |
d6e69534 | 32 | #include <babeltrace/graph/self-component-port-input-message-iterator.h> |
d94d92ac | 33 | #include <babeltrace/graph/self-component.h> |
8ed535b5 | 34 | #include <babeltrace/graph/component-class-sink-colander-internal.h> |
706a18f9 | 35 | #include <glib.h> |
706a18f9 PP |
36 | |
37 | static | |
0d72b8c3 | 38 | struct bt_component_class_sink *colander_comp_cls; |
706a18f9 PP |
39 | |
40 | struct colander_data { | |
d6e69534 | 41 | bt_message_array_const msgs; |
d4393e08 | 42 | uint64_t *count_addr; |
d6e69534 | 43 | struct bt_self_component_port_input_message_iterator *msg_iter; |
706a18f9 PP |
44 | }; |
45 | ||
46 | static | |
d94d92ac PP |
47 | enum bt_self_component_status colander_init( |
48 | struct bt_self_component_sink *self_comp, | |
05e21286 | 49 | const struct bt_value *params, void *init_method_data) |
706a18f9 | 50 | { |
d94d92ac | 51 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
706a18f9 | 52 | struct colander_data *colander_data = NULL; |
8ed535b5 PP |
53 | struct bt_component_class_sink_colander_data *user_provided_data = |
54 | init_method_data; | |
706a18f9 PP |
55 | |
56 | if (!init_method_data) { | |
57 | BT_LOGW_STR("Component initialization method data is NULL."); | |
d94d92ac | 58 | status = BT_SELF_COMPONENT_STATUS_ERROR; |
706a18f9 PP |
59 | goto end; |
60 | } | |
61 | ||
62 | colander_data = g_new0(struct colander_data, 1); | |
63 | if (!colander_data) { | |
64 | BT_LOGE_STR("Failed to allocate colander data."); | |
d94d92ac | 65 | status = BT_SELF_COMPONENT_STATUS_NOMEM; |
706a18f9 PP |
66 | goto end; |
67 | } | |
68 | ||
d6e69534 | 69 | colander_data->msgs = user_provided_data->msgs; |
d4393e08 | 70 | colander_data->count_addr = user_provided_data->count_addr; |
d94d92ac PP |
71 | status = bt_self_component_sink_add_input_port(self_comp, "in", |
72 | NULL, NULL); | |
73 | if (status != BT_SELF_COMPONENT_STATUS_OK) { | |
706a18f9 PP |
74 | BT_LOGE_STR("Cannot add input port."); |
75 | goto end; | |
76 | } | |
77 | ||
d94d92ac | 78 | bt_self_component_set_data( |
707b7d35 | 79 | bt_self_component_sink_as_self_component(self_comp), |
d94d92ac | 80 | colander_data); |
706a18f9 PP |
81 | |
82 | end: | |
83 | return status; | |
84 | } | |
85 | ||
86 | static | |
d94d92ac | 87 | void colander_finalize(struct bt_self_component_sink *self_comp) |
706a18f9 PP |
88 | { |
89 | struct colander_data *colander_data = | |
d94d92ac | 90 | bt_self_component_get_data( |
707b7d35 | 91 | bt_self_component_sink_as_self_component(self_comp)); |
706a18f9 PP |
92 | |
93 | if (!colander_data) { | |
94 | return; | |
95 | } | |
96 | ||
d6e69534 | 97 | BT_OBJECT_PUT_REF_AND_RESET(colander_data->msg_iter); |
706a18f9 PP |
98 | g_free(colander_data); |
99 | } | |
100 | ||
101 | static | |
d94d92ac PP |
102 | enum bt_self_component_status colander_input_port_connected( |
103 | struct bt_self_component_sink *self_comp, | |
104 | struct bt_self_component_port_input *self_port, | |
0d72b8c3 | 105 | const struct bt_port_output *other_port) |
706a18f9 | 106 | { |
d94d92ac | 107 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
706a18f9 | 108 | struct colander_data *colander_data = |
d94d92ac | 109 | bt_self_component_get_data( |
707b7d35 | 110 | bt_self_component_sink_as_self_component(self_comp)); |
706a18f9 | 111 | |
f6ccaed9 | 112 | BT_ASSERT(colander_data); |
d6e69534 PP |
113 | BT_OBJECT_PUT_REF_AND_RESET(colander_data->msg_iter); |
114 | colander_data->msg_iter = | |
115 | bt_self_component_port_input_message_iterator_create( | |
d94d92ac | 116 | self_port); |
d6e69534 PP |
117 | if (!colander_data->msg_iter) { |
118 | BT_LIB_LOGE("Cannot create message iterator on " | |
d94d92ac PP |
119 | "self component input port: %![port-]+p", |
120 | self_port); | |
121 | status = BT_SELF_COMPONENT_STATUS_NOMEM; | |
706a18f9 PP |
122 | goto end; |
123 | } | |
124 | ||
125 | end: | |
bf55043c | 126 | return status; |
706a18f9 PP |
127 | } |
128 | ||
129 | static | |
d94d92ac PP |
130 | enum bt_self_component_status colander_consume( |
131 | struct bt_self_component_sink *self_comp) | |
706a18f9 | 132 | { |
d94d92ac | 133 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
d6e69534 | 134 | enum bt_message_iterator_status msg_iter_status; |
706a18f9 | 135 | struct colander_data *colander_data = |
d94d92ac | 136 | bt_self_component_get_data( |
707b7d35 | 137 | bt_self_component_sink_as_self_component(self_comp)); |
d6e69534 | 138 | bt_message_array_const msgs; |
706a18f9 | 139 | |
f6ccaed9 | 140 | BT_ASSERT(colander_data); |
706a18f9 | 141 | |
d6e69534 | 142 | if (!colander_data->msg_iter) { |
d94d92ac | 143 | BT_LIB_LOGW("Trying to consume without an " |
d6e69534 | 144 | "upstream message iterator: %![comp-]+c", |
d94d92ac | 145 | self_comp); |
706a18f9 PP |
146 | goto end; |
147 | } | |
148 | ||
d6e69534 PP |
149 | msg_iter_status = |
150 | bt_self_component_port_input_message_iterator_next( | |
151 | colander_data->msg_iter, &msgs, | |
d94d92ac | 152 | colander_data->count_addr); |
d6e69534 PP |
153 | switch (msg_iter_status) { |
154 | case BT_MESSAGE_ITERATOR_STATUS_CANCELED: | |
d94d92ac | 155 | status = BT_SELF_COMPONENT_STATUS_OK; |
706a18f9 | 156 | goto end; |
d6e69534 | 157 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: |
d94d92ac | 158 | status = BT_SELF_COMPONENT_STATUS_AGAIN; |
706a18f9 | 159 | goto end; |
d6e69534 | 160 | case BT_MESSAGE_ITERATOR_STATUS_END: |
d94d92ac | 161 | status = BT_SELF_COMPONENT_STATUS_END; |
706a18f9 | 162 | goto end; |
d6e69534 PP |
163 | case BT_MESSAGE_ITERATOR_STATUS_OK: |
164 | /* Move messages to user (count already set) */ | |
165 | memcpy(colander_data->msgs, msgs, | |
166 | sizeof(*msgs) * *colander_data->count_addr); | |
706a18f9 PP |
167 | break; |
168 | default: | |
d94d92ac | 169 | status = BT_SELF_COMPONENT_STATUS_ERROR; |
706a18f9 PP |
170 | goto end; |
171 | } | |
172 | ||
706a18f9 | 173 | end: |
706a18f9 PP |
174 | return status; |
175 | } | |
176 | ||
d94d92ac | 177 | struct bt_component_class_sink *bt_component_class_sink_colander_get(void) |
706a18f9 PP |
178 | { |
179 | if (colander_comp_cls) { | |
180 | goto end; | |
181 | } | |
182 | ||
0d72b8c3 PP |
183 | colander_comp_cls = bt_component_class_sink_create("colander", |
184 | colander_consume); | |
706a18f9 PP |
185 | if (!colander_comp_cls) { |
186 | BT_LOGE_STR("Cannot create sink colander component class."); | |
187 | goto end; | |
188 | } | |
189 | ||
0d72b8c3 | 190 | (void) bt_component_class_sink_set_init_method( |
d94d92ac | 191 | colander_comp_cls, colander_init); |
0d72b8c3 | 192 | (void) bt_component_class_sink_set_finalize_method( |
d94d92ac | 193 | colander_comp_cls, colander_finalize); |
0d72b8c3 | 194 | (void) bt_component_class_sink_set_input_port_connected_method( |
d94d92ac | 195 | colander_comp_cls, colander_input_port_connected); |
706a18f9 PP |
196 | |
197 | end: | |
398454ed PP |
198 | bt_object_get_ref(colander_comp_cls); |
199 | return (void *) colander_comp_cls; | |
706a18f9 PP |
200 | } |
201 | ||
202 | __attribute__((destructor)) static | |
203 | void put_colander(void) { | |
65300d60 | 204 | BT_OBJECT_PUT_REF_AND_RESET(colander_comp_cls); |
706a18f9 | 205 | } |