Commit | Line | Data |
---|---|---|
47e5a032 | 1 | /* |
e2f7325d | 2 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
47e5a032 | 3 | * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
47e5a032 JG |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
6 | * of this software and associated documentation files (the "Software"), to deal | |
7 | * in the Software without restriction, including without limitation the rights | |
8 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
9 | * copies of the Software, and to permit persons to whom the Software is | |
10 | * furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
21 | * SOFTWARE. | |
22 | */ | |
23 | ||
d6e69534 | 24 | #define BT_LOG_TAG "MSG-ITER" |
5af447e5 PP |
25 | #include <babeltrace/lib-logging-internal.h> |
26 | ||
3d9990ac | 27 | #include <babeltrace/compiler-internal.h> |
c6bd8523 | 28 | #include <babeltrace/trace-ir/field.h> |
40f4ba76 | 29 | #include <babeltrace/trace-ir/event-const.h> |
56e18c4c | 30 | #include <babeltrace/trace-ir/event-internal.h> |
40f4ba76 | 31 | #include <babeltrace/trace-ir/packet-const.h> |
56e18c4c PP |
32 | #include <babeltrace/trace-ir/packet-internal.h> |
33 | #include <babeltrace/trace-ir/stream-internal.h> | |
0d72b8c3 | 34 | #include <babeltrace/graph/connection-const.h> |
bd14d768 | 35 | #include <babeltrace/graph/connection-internal.h> |
0d72b8c3 | 36 | #include <babeltrace/graph/component-const.h> |
e5be10ef | 37 | #include <babeltrace/graph/component-internal.h> |
b2e0c907 PP |
38 | #include <babeltrace/graph/component-source-internal.h> |
39 | #include <babeltrace/graph/component-class-internal.h> | |
8ed535b5 | 40 | #include <babeltrace/graph/component-class-sink-colander-internal.h> |
0d72b8c3 | 41 | #include <babeltrace/graph/component-sink-const.h> |
7474e7d3 | 42 | #include <babeltrace/graph/component-sink-internal.h> |
d6e69534 | 43 | #include <babeltrace/graph/message-const.h> |
7474e7d3 | 44 | #include <babeltrace/graph/message-iterator-const.h> |
d6e69534 PP |
45 | #include <babeltrace/graph/message-iterator-internal.h> |
46 | #include <babeltrace/graph/self-component-port-input-message-iterator.h> | |
47 | #include <babeltrace/graph/port-output-message-iterator.h> | |
48 | #include <babeltrace/graph/message-internal.h> | |
49 | #include <babeltrace/graph/message-event-const.h> | |
50 | #include <babeltrace/graph/message-event-internal.h> | |
5df26c89 PP |
51 | #include <babeltrace/graph/message-packet-beginning-const.h> |
52 | #include <babeltrace/graph/message-packet-end-const.h> | |
d6e69534 | 53 | #include <babeltrace/graph/message-packet-internal.h> |
5df26c89 PP |
54 | #include <babeltrace/graph/message-stream-beginning-const.h> |
55 | #include <babeltrace/graph/message-stream-end-const.h> | |
d6e69534 | 56 | #include <babeltrace/graph/message-stream-internal.h> |
7474e7d3 | 57 | #include <babeltrace/graph/message-inactivity-internal.h> |
16663a5e PP |
58 | #include <babeltrace/graph/message-discarded-items-internal.h> |
59 | #include <babeltrace/graph/message-stream-activity-internal.h> | |
0d72b8c3 PP |
60 | #include <babeltrace/graph/port-const.h> |
61 | #include <babeltrace/graph/graph.h> | |
62 | #include <babeltrace/graph/graph-const.h> | |
8ed535b5 | 63 | #include <babeltrace/graph/graph-internal.h> |
c55a9f58 | 64 | #include <babeltrace/types.h> |
f6ccaed9 | 65 | #include <babeltrace/assert-internal.h> |
f42867e2 | 66 | #include <babeltrace/assert-pre-internal.h> |
fa054faf | 67 | #include <stdint.h> |
2ec84d26 | 68 | #include <inttypes.h> |
0fbb9a9f | 69 | #include <stdlib.h> |
3230ee6b | 70 | |
d4393e08 PP |
71 | /* |
72 | * TODO: Use graph's state (number of active iterators, etc.) and | |
73 | * possibly system specifications to make a better guess than this. | |
74 | */ | |
d6e69534 | 75 | #define MSG_BATCH_SIZE 15 |
d4393e08 | 76 | |
7474e7d3 PP |
77 | #define BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(_iter) \ |
78 | BT_ASSERT_PRE((_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE || \ | |
79 | (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED || \ | |
80 | (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN || \ | |
81 | (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR, \ | |
82 | "Message iterator is in the wrong state: %!+i", _iter) | |
47e5a032 | 83 | |
d0fea130 PP |
84 | static inline |
85 | void _set_self_comp_port_input_msg_iterator_state( | |
86 | struct bt_self_component_port_input_message_iterator *iterator, | |
87 | enum bt_self_component_port_input_message_iterator_state state) | |
88 | { | |
89 | BT_ASSERT(iterator); | |
7474e7d3 | 90 | BT_LIB_LOGD("Updating message iterator's state: new-state=%s", |
d0fea130 PP |
91 | bt_self_component_port_input_message_iterator_state_string(state)); |
92 | iterator->state = state; | |
93 | } | |
94 | ||
95 | #ifdef BT_DEV_MODE | |
96 | # define set_self_comp_port_input_msg_iterator_state _set_self_comp_port_input_msg_iterator_state | |
97 | #else | |
98 | # define set_self_comp_port_input_msg_iterator_state(_a, _b) | |
99 | #endif | |
100 | ||
8ed535b5 | 101 | static |
d6e69534 | 102 | void destroy_base_message_iterator(struct bt_object *obj) |
8ed535b5 | 103 | { |
d6e69534 | 104 | struct bt_message_iterator *iterator = (void *) obj; |
d4393e08 PP |
105 | |
106 | BT_ASSERT(iterator); | |
107 | ||
d6e69534 PP |
108 | if (iterator->msgs) { |
109 | g_ptr_array_free(iterator->msgs, TRUE); | |
110 | iterator->msgs = NULL; | |
d4393e08 PP |
111 | } |
112 | ||
113 | g_free(iterator); | |
8ed535b5 PP |
114 | } |
115 | ||
47e5a032 | 116 | static |
d6e69534 | 117 | void bt_self_component_port_input_message_iterator_destroy(struct bt_object *obj) |
47e5a032 | 118 | { |
d6e69534 | 119 | struct bt_self_component_port_input_message_iterator *iterator; |
8738a040 | 120 | |
f6ccaed9 | 121 | BT_ASSERT(obj); |
d3eb6e8f | 122 | |
bd14d768 | 123 | /* |
d6e69534 | 124 | * The message iterator's reference count is 0 if we're |
bd14d768 PP |
125 | * here. Increment it to avoid a double-destroy (possibly |
126 | * infinitely recursive). This could happen for example if the | |
d6e69534 | 127 | * message iterator's finalization function does |
d94d92ac PP |
128 | * bt_object_get_ref() (or anything that causes |
129 | * bt_object_get_ref() to be called) on itself (ref. count goes | |
130 | * from 0 to 1), and then bt_object_put_ref(): the reference | |
131 | * count would go from 1 to 0 again and this function would be | |
132 | * called again. | |
bd14d768 | 133 | */ |
3fea54f6 | 134 | obj->ref_count++; |
07245ac2 | 135 | iterator = (void *) obj; |
d6e69534 | 136 | BT_LIB_LOGD("Destroying self component input port message iterator object: " |
d94d92ac | 137 | "%!+i", iterator); |
d0fea130 | 138 | bt_self_component_port_input_message_iterator_try_finalize(iterator); |
d3eb6e8f | 139 | |
bd14d768 PP |
140 | if (iterator->connection) { |
141 | /* | |
142 | * Remove ourself from the originating connection so | |
143 | * that it does not try to finalize a dangling pointer | |
144 | * later. | |
145 | */ | |
146 | bt_connection_remove_iterator(iterator->connection, iterator); | |
d94d92ac | 147 | iterator->connection = NULL; |
bd14d768 PP |
148 | } |
149 | ||
7474e7d3 PP |
150 | if (iterator->auto_seek_msgs) { |
151 | uint64_t i; | |
152 | ||
153 | /* Put any remaining message in the auto-seek array */ | |
154 | for (i = 0; i < iterator->auto_seek_msgs->len; i++) { | |
155 | if (iterator->auto_seek_msgs->pdata[i]) { | |
156 | bt_object_put_no_null_check( | |
157 | iterator->auto_seek_msgs->pdata[i]); | |
158 | } | |
159 | } | |
160 | ||
161 | g_ptr_array_free(iterator->auto_seek_msgs, TRUE); | |
162 | iterator->auto_seek_msgs = NULL; | |
163 | } | |
164 | ||
d6e69534 | 165 | destroy_base_message_iterator(obj); |
47e5a032 JG |
166 | } |
167 | ||
bd14d768 | 168 | BT_HIDDEN |
d0fea130 | 169 | void bt_self_component_port_input_message_iterator_try_finalize( |
d6e69534 | 170 | struct bt_self_component_port_input_message_iterator *iterator) |
bd14d768 | 171 | { |
d94d92ac PP |
172 | typedef void (*method_t)(void *); |
173 | ||
bd14d768 | 174 | struct bt_component_class *comp_class = NULL; |
d94d92ac | 175 | method_t method = NULL; |
bd14d768 | 176 | |
f6ccaed9 | 177 | BT_ASSERT(iterator); |
bd14d768 PP |
178 | |
179 | switch (iterator->state) { | |
d6e69534 | 180 | case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_NON_INITIALIZED: |
088d4023 | 181 | /* Skip user finalization if user initialization failed */ |
d6e69534 | 182 | BT_LIB_LOGD("Not finalizing non-initialized message iterator: " |
d94d92ac | 183 | "%!+i", iterator); |
d0fea130 | 184 | goto end; |
d6e69534 | 185 | case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED: |
bd14d768 | 186 | /* Already finalized */ |
d6e69534 | 187 | BT_LIB_LOGD("Not finalizing message iterator: already finalized: " |
d94d92ac | 188 | "%!+i", iterator); |
d0fea130 PP |
189 | goto end; |
190 | case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING: | |
191 | /* Already finalized */ | |
192 | BT_LIB_LOGF("Message iterator is already being finalized: " | |
193 | "%!+i", iterator); | |
194 | abort(); | |
bd14d768 PP |
195 | default: |
196 | break; | |
197 | } | |
198 | ||
d6e69534 | 199 | BT_LIB_LOGD("Finalizing message iterator: %!+i", iterator); |
d0fea130 PP |
200 | set_self_comp_port_input_msg_iterator_state(iterator, |
201 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING); | |
f6ccaed9 | 202 | BT_ASSERT(iterator->upstream_component); |
bd14d768 PP |
203 | comp_class = iterator->upstream_component->class; |
204 | ||
205 | /* Call user-defined destroy method */ | |
206 | switch (comp_class->type) { | |
207 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
208 | { | |
d94d92ac PP |
209 | struct bt_component_class_source *src_comp_cls = |
210 | (void *) comp_class; | |
bd14d768 | 211 | |
d6e69534 | 212 | method = (method_t) src_comp_cls->methods.msg_iter_finalize; |
bd14d768 PP |
213 | break; |
214 | } | |
215 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
216 | { | |
d94d92ac PP |
217 | struct bt_component_class_filter *flt_comp_cls = |
218 | (void *) comp_class; | |
bd14d768 | 219 | |
d6e69534 | 220 | method = (method_t) flt_comp_cls->methods.msg_iter_finalize; |
bd14d768 PP |
221 | break; |
222 | } | |
223 | default: | |
224 | /* Unreachable */ | |
0fbb9a9f | 225 | abort(); |
bd14d768 PP |
226 | } |
227 | ||
d94d92ac PP |
228 | if (method) { |
229 | BT_LIB_LOGD("Calling user's finalization method: %!+i", | |
5af447e5 | 230 | iterator); |
d94d92ac | 231 | method(iterator); |
bd14d768 PP |
232 | } |
233 | ||
bd14d768 PP |
234 | iterator->upstream_component = NULL; |
235 | iterator->upstream_port = NULL; | |
d0fea130 PP |
236 | set_self_comp_port_input_msg_iterator_state(iterator, |
237 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED); | |
d6e69534 | 238 | BT_LIB_LOGD("Finalized message iterator: %!+i", iterator); |
d0fea130 PP |
239 | |
240 | end: | |
241 | return; | |
bd14d768 PP |
242 | } |
243 | ||
244 | BT_HIDDEN | |
d6e69534 PP |
245 | void bt_self_component_port_input_message_iterator_set_connection( |
246 | struct bt_self_component_port_input_message_iterator *iterator, | |
bd14d768 PP |
247 | struct bt_connection *connection) |
248 | { | |
f6ccaed9 | 249 | BT_ASSERT(iterator); |
bd14d768 | 250 | iterator->connection = connection; |
d6e69534 | 251 | BT_LIB_LOGV("Set message iterator's connection: " |
d94d92ac | 252 | "%![iter-]+i, %![conn-]+x", iterator, connection); |
bd14d768 PP |
253 | } |
254 | ||
90157d89 | 255 | static |
d6e69534 PP |
256 | int init_message_iterator(struct bt_message_iterator *iterator, |
257 | enum bt_message_iterator_type type, | |
90157d89 PP |
258 | bt_object_release_func destroy) |
259 | { | |
d4393e08 PP |
260 | int ret = 0; |
261 | ||
3fea54f6 | 262 | bt_object_init_shared(&iterator->base, destroy); |
90157d89 | 263 | iterator->type = type; |
d6e69534 PP |
264 | iterator->msgs = g_ptr_array_new(); |
265 | if (!iterator->msgs) { | |
d4393e08 PP |
266 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
267 | ret = -1; | |
268 | goto end; | |
269 | } | |
270 | ||
d6e69534 | 271 | g_ptr_array_set_size(iterator->msgs, MSG_BATCH_SIZE); |
d4393e08 PP |
272 | |
273 | end: | |
274 | return ret; | |
90157d89 PP |
275 | } |
276 | ||
7474e7d3 PP |
277 | static |
278 | bt_bool can_seek_ns_from_origin_true( | |
279 | struct bt_self_component_port_input_message_iterator *iterator, | |
280 | int64_t ns_from_origin) | |
281 | { | |
282 | return BT_TRUE; | |
283 | } | |
284 | ||
285 | static | |
286 | bt_bool can_seek_beginning_true( | |
287 | struct bt_self_component_port_input_message_iterator *iterator) | |
288 | { | |
289 | return BT_TRUE; | |
290 | } | |
291 | ||
d94d92ac | 292 | static |
d6e69534 PP |
293 | struct bt_self_component_port_input_message_iterator * |
294 | bt_self_component_port_input_message_iterator_create_initial( | |
3230ee6b | 295 | struct bt_component *upstream_comp, |
d94d92ac | 296 | struct bt_port *upstream_port) |
47e5a032 | 297 | { |
d4393e08 | 298 | int ret; |
d6e69534 | 299 | struct bt_self_component_port_input_message_iterator *iterator = NULL; |
47e5a032 | 300 | |
f6ccaed9 PP |
301 | BT_ASSERT(upstream_comp); |
302 | BT_ASSERT(upstream_port); | |
f6ccaed9 | 303 | BT_ASSERT(bt_port_is_connected(upstream_port)); |
d6e69534 | 304 | BT_LIB_LOGD("Creating initial message iterator on self component input port: " |
d94d92ac PP |
305 | "%![up-comp-]+c, %![up-port-]+p", upstream_comp, upstream_port); |
306 | BT_ASSERT(bt_component_get_class_type(upstream_comp) == | |
307 | BT_COMPONENT_CLASS_TYPE_SOURCE || | |
308 | bt_component_get_class_type(upstream_comp) == | |
309 | BT_COMPONENT_CLASS_TYPE_FILTER); | |
310 | iterator = g_new0( | |
d6e69534 | 311 | struct bt_self_component_port_input_message_iterator, 1); |
47e5a032 | 312 | if (!iterator) { |
d94d92ac | 313 | BT_LOGE_STR("Failed to allocate one self component input port " |
d6e69534 | 314 | "message iterator."); |
73d5c1ad | 315 | goto end; |
47e5a032 JG |
316 | } |
317 | ||
d6e69534 PP |
318 | ret = init_message_iterator((void *) iterator, |
319 | BT_MESSAGE_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT, | |
320 | bt_self_component_port_input_message_iterator_destroy); | |
d4393e08 | 321 | if (ret) { |
d6e69534 | 322 | /* init_message_iterator() logs errors */ |
d94d92ac | 323 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
d4393e08 PP |
324 | goto end; |
325 | } | |
3230ee6b | 326 | |
7474e7d3 PP |
327 | iterator->auto_seek_msgs = g_ptr_array_new(); |
328 | if (!iterator->auto_seek_msgs) { | |
329 | BT_LOGE_STR("Failed to allocate a GPtrArray."); | |
330 | ret = -1; | |
73d5c1ad | 331 | goto end; |
3230ee6b PP |
332 | } |
333 | ||
7474e7d3 | 334 | g_ptr_array_set_size(iterator->auto_seek_msgs, MSG_BATCH_SIZE); |
bd14d768 PP |
335 | iterator->upstream_component = upstream_comp; |
336 | iterator->upstream_port = upstream_port; | |
d94d92ac | 337 | iterator->connection = iterator->upstream_port->connection; |
5c563278 | 338 | iterator->graph = bt_component_borrow_graph(upstream_comp); |
d0fea130 PP |
339 | set_self_comp_port_input_msg_iterator_state(iterator, |
340 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_NON_INITIALIZED); | |
7474e7d3 PP |
341 | |
342 | switch (iterator->upstream_component->class->type) { | |
343 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
344 | { | |
345 | struct bt_component_class_source *src_comp_cls = | |
346 | (void *) iterator->upstream_component->class; | |
347 | ||
348 | iterator->methods.next = | |
349 | (bt_self_component_port_input_message_iterator_next_method) | |
350 | src_comp_cls->methods.msg_iter_next; | |
351 | iterator->methods.seek_ns_from_origin = | |
352 | (bt_self_component_port_input_message_iterator_seek_ns_from_origin_method) | |
353 | src_comp_cls->methods.msg_iter_seek_ns_from_origin; | |
354 | iterator->methods.seek_beginning = | |
355 | (bt_self_component_port_input_message_iterator_seek_beginning_method) | |
356 | src_comp_cls->methods.msg_iter_seek_beginning; | |
357 | iterator->methods.can_seek_ns_from_origin = | |
358 | (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method) | |
359 | src_comp_cls->methods.msg_iter_can_seek_ns_from_origin; | |
360 | iterator->methods.can_seek_beginning = | |
361 | (bt_self_component_port_input_message_iterator_can_seek_beginning_method) | |
362 | src_comp_cls->methods.msg_iter_can_seek_beginning; | |
363 | break; | |
364 | } | |
365 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
366 | { | |
367 | struct bt_component_class_filter *flt_comp_cls = | |
368 | (void *) iterator->upstream_component->class; | |
369 | ||
370 | iterator->methods.next = | |
371 | (bt_self_component_port_input_message_iterator_next_method) | |
372 | flt_comp_cls->methods.msg_iter_next; | |
373 | iterator->methods.seek_ns_from_origin = | |
374 | (bt_self_component_port_input_message_iterator_seek_ns_from_origin_method) | |
375 | flt_comp_cls->methods.msg_iter_seek_ns_from_origin; | |
376 | iterator->methods.seek_beginning = | |
377 | (bt_self_component_port_input_message_iterator_seek_beginning_method) | |
378 | flt_comp_cls->methods.msg_iter_seek_beginning; | |
379 | iterator->methods.can_seek_ns_from_origin = | |
380 | (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method) | |
381 | flt_comp_cls->methods.msg_iter_can_seek_ns_from_origin; | |
382 | iterator->methods.can_seek_beginning = | |
383 | (bt_self_component_port_input_message_iterator_can_seek_beginning_method) | |
384 | flt_comp_cls->methods.msg_iter_can_seek_beginning; | |
385 | break; | |
386 | } | |
387 | default: | |
388 | abort(); | |
389 | } | |
390 | ||
391 | if (iterator->methods.seek_ns_from_origin && | |
392 | !iterator->methods.can_seek_ns_from_origin) { | |
393 | iterator->methods.can_seek_ns_from_origin = | |
394 | (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method) | |
395 | can_seek_ns_from_origin_true; | |
396 | } | |
397 | ||
398 | if (iterator->methods.seek_beginning && | |
399 | !iterator->methods.can_seek_beginning) { | |
400 | iterator->methods.can_seek_beginning = | |
401 | (bt_self_component_port_input_message_iterator_seek_beginning_method) | |
402 | can_seek_beginning_true; | |
403 | } | |
404 | ||
d6e69534 | 405 | BT_LIB_LOGD("Created initial message iterator on self component input port: " |
d94d92ac PP |
406 | "%![up-port-]+p, %![up-comp-]+c, %![iter-]+i", |
407 | upstream_port, upstream_comp, iterator); | |
3230ee6b | 408 | |
47e5a032 | 409 | end: |
d94d92ac | 410 | return iterator; |
47e5a032 JG |
411 | } |
412 | ||
d6e69534 PP |
413 | struct bt_self_component_port_input_message_iterator * |
414 | bt_self_component_port_input_message_iterator_create( | |
d94d92ac | 415 | struct bt_self_component_port_input *self_port) |
ea8d3e58 | 416 | { |
d6e69534 | 417 | typedef enum bt_self_message_iterator_status (*init_method_t)( |
d94d92ac PP |
418 | void *, void *, void *); |
419 | ||
420 | init_method_t init_method = NULL; | |
d6e69534 | 421 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac PP |
422 | NULL; |
423 | struct bt_port *port = (void *) self_port; | |
424 | struct bt_port *upstream_port; | |
425 | struct bt_component *comp; | |
426 | struct bt_component *upstream_comp; | |
427 | struct bt_component_class *upstream_comp_cls; | |
428 | ||
429 | BT_ASSERT_PRE_NON_NULL(port, "Port"); | |
0d72b8c3 | 430 | comp = bt_port_borrow_component_inline(port); |
d94d92ac PP |
431 | BT_ASSERT_PRE(bt_port_is_connected(port), |
432 | "Port is not connected: %![port-]+p", port); | |
433 | BT_ASSERT_PRE(comp, "Port is not part of a component: %![port-]+p", | |
434 | port); | |
435 | BT_ASSERT_PRE(!bt_component_graph_is_canceled(comp), | |
436 | "Port's component's graph is canceled: " | |
437 | "%![port-]+p, %![comp-]+c", port, comp); | |
438 | BT_ASSERT(port->connection); | |
439 | upstream_port = port->connection->upstream_port; | |
440 | BT_ASSERT(upstream_port); | |
0d72b8c3 | 441 | upstream_comp = bt_port_borrow_component_inline(upstream_port); |
d94d92ac PP |
442 | BT_ASSERT(upstream_comp); |
443 | upstream_comp_cls = upstream_comp->class; | |
444 | BT_ASSERT(upstream_comp->class->type == | |
445 | BT_COMPONENT_CLASS_TYPE_SOURCE || | |
446 | upstream_comp->class->type == | |
447 | BT_COMPONENT_CLASS_TYPE_FILTER); | |
d6e69534 | 448 | iterator = bt_self_component_port_input_message_iterator_create_initial( |
d94d92ac PP |
449 | upstream_comp, upstream_port); |
450 | if (!iterator) { | |
451 | BT_LOGW_STR("Cannot create self component input port " | |
d6e69534 | 452 | "message iterator."); |
d94d92ac PP |
453 | goto end; |
454 | } | |
890882ef | 455 | |
d94d92ac PP |
456 | switch (upstream_comp_cls->type) { |
457 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
458 | { | |
459 | struct bt_component_class_source *src_comp_cls = | |
460 | (void *) upstream_comp_cls; | |
461 | ||
462 | init_method = | |
d6e69534 | 463 | (init_method_t) src_comp_cls->methods.msg_iter_init; |
d94d92ac PP |
464 | break; |
465 | } | |
466 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
467 | { | |
468 | struct bt_component_class_filter *flt_comp_cls = | |
469 | (void *) upstream_comp_cls; | |
470 | ||
471 | init_method = | |
d6e69534 | 472 | (init_method_t) flt_comp_cls->methods.msg_iter_init; |
d94d92ac PP |
473 | break; |
474 | } | |
475 | default: | |
476 | /* Unreachable */ | |
477 | abort(); | |
478 | } | |
479 | ||
480 | if (init_method) { | |
481 | int iter_status; | |
482 | ||
483 | BT_LIB_LOGD("Calling user's initialization method: %!+i", iterator); | |
484 | iter_status = init_method(iterator, upstream_comp, | |
485 | upstream_port); | |
486 | BT_LOGD("User method returned: status=%s", | |
d6e69534 PP |
487 | bt_message_iterator_status_string(iter_status)); |
488 | if (iter_status != BT_MESSAGE_ITERATOR_STATUS_OK) { | |
d94d92ac | 489 | BT_LOGW_STR("Initialization method failed."); |
d0fea130 | 490 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
d94d92ac PP |
491 | goto end; |
492 | } | |
493 | } | |
494 | ||
d0fea130 PP |
495 | set_self_comp_port_input_msg_iterator_state(iterator, |
496 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE); | |
d94d92ac | 497 | g_ptr_array_add(port->connection->iterators, iterator); |
d6e69534 | 498 | BT_LIB_LOGD("Created message iterator on self component input port: " |
d94d92ac PP |
499 | "%![up-port-]+p, %![up-comp-]+c, %![iter-]+i", |
500 | upstream_port, upstream_comp, iterator); | |
501 | ||
502 | end: | |
503 | return iterator; | |
ea8d3e58 JG |
504 | } |
505 | ||
d6e69534 PP |
506 | void *bt_self_message_iterator_get_data( |
507 | const struct bt_self_message_iterator *self_iterator) | |
ea8d3e58 | 508 | { |
d6e69534 | 509 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac | 510 | (void *) self_iterator; |
ea8d3e58 | 511 | |
d6e69534 | 512 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac | 513 | return iterator->user_data; |
8738a040 | 514 | } |
413bc2c4 | 515 | |
d6e69534 PP |
516 | void bt_self_message_iterator_set_data( |
517 | struct bt_self_message_iterator *self_iterator, void *data) | |
5c563278 | 518 | { |
d6e69534 | 519 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac | 520 | (void *) self_iterator; |
5c563278 | 521 | |
d6e69534 | 522 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac | 523 | iterator->user_data = data; |
d6e69534 | 524 | BT_LIB_LOGV("Set message iterator's user data: " |
d94d92ac | 525 | "%!+i, user-data-addr=%p", iterator, data); |
5c563278 PP |
526 | } |
527 | ||
f42867e2 PP |
528 | BT_ASSERT_PRE_FUNC |
529 | static inline | |
d6e69534 | 530 | void bt_message_borrow_packet_stream(const struct bt_message *msg, |
40f4ba76 PP |
531 | const struct bt_stream **stream, |
532 | const struct bt_packet **packet) | |
fa054faf | 533 | { |
d6e69534 | 534 | BT_ASSERT(msg); |
fa054faf | 535 | |
d6e69534 PP |
536 | switch (msg->type) { |
537 | case BT_MESSAGE_TYPE_EVENT: | |
40f4ba76 | 538 | *packet = bt_event_borrow_packet_const( |
d6e69534 | 539 | bt_message_event_borrow_event_const(msg)); |
40f4ba76 | 540 | *stream = bt_packet_borrow_stream_const(*packet); |
fa054faf | 541 | break; |
d6e69534 PP |
542 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: |
543 | *stream = bt_message_stream_beginning_borrow_stream_const(msg); | |
fa054faf | 544 | break; |
d6e69534 PP |
545 | case BT_MESSAGE_TYPE_STREAM_END: |
546 | *stream = bt_message_stream_end_borrow_stream_const(msg); | |
fa054faf | 547 | break; |
d6e69534 PP |
548 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: |
549 | *packet = bt_message_packet_beginning_borrow_packet_const(msg); | |
40f4ba76 | 550 | *stream = bt_packet_borrow_stream_const(*packet); |
fa054faf | 551 | break; |
d6e69534 PP |
552 | case BT_MESSAGE_TYPE_PACKET_END: |
553 | *packet = bt_message_packet_end_borrow_packet_const(msg); | |
40f4ba76 | 554 | *stream = bt_packet_borrow_stream_const(*packet); |
2ec84d26 | 555 | break; |
fa054faf | 556 | default: |
f42867e2 | 557 | break; |
fa054faf | 558 | } |
fa054faf PP |
559 | } |
560 | ||
d6e69534 PP |
561 | enum bt_message_iterator_status |
562 | bt_self_component_port_input_message_iterator_next( | |
563 | struct bt_self_component_port_input_message_iterator *iterator, | |
564 | bt_message_array_const *msgs, uint64_t *user_count) | |
3230ee6b | 565 | { |
d6e69534 | 566 | int status = BT_MESSAGE_ITERATOR_STATUS_OK; |
d94d92ac | 567 | |
d6e69534 PP |
568 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
569 | BT_ASSERT_PRE_NON_NULL(msgs, "Message array (output)"); | |
570 | BT_ASSERT_PRE_NON_NULL(user_count, "Message count (output)"); | |
f42867e2 | 571 | BT_ASSERT_PRE(iterator->state == |
d6e69534 PP |
572 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE, |
573 | "Message iterator's \"next\" called, but " | |
7474e7d3 | 574 | "message iterator is in the wrong state: %!+i", iterator); |
f42867e2 PP |
575 | BT_ASSERT(iterator->upstream_component); |
576 | BT_ASSERT(iterator->upstream_component->class); | |
4725a201 PP |
577 | BT_ASSERT_PRE(bt_component_borrow_graph(iterator->upstream_component)->is_configured, |
578 | "Graph is not configured: %!+g", | |
579 | bt_component_borrow_graph(iterator->upstream_component)); | |
d94d92ac | 580 | BT_LIB_LOGD("Getting next self component input port " |
d6e69534 | 581 | "message iterator's messages: %!+i", iterator); |
d3eb6e8f | 582 | |
3230ee6b | 583 | /* |
d6e69534 | 584 | * Call the user's "next" method to get the next messages |
fa054faf | 585 | * and status. |
3230ee6b | 586 | */ |
7474e7d3 | 587 | BT_ASSERT(iterator->methods.next); |
f42867e2 | 588 | BT_LOGD_STR("Calling user's \"next\" method."); |
7474e7d3 PP |
589 | status = iterator->methods.next(iterator, |
590 | (void *) iterator->base.msgs->pdata, MSG_BATCH_SIZE, | |
591 | user_count); | |
f42867e2 | 592 | BT_LOGD("User method returned: status=%s", |
d6e69534 | 593 | bt_message_iterator_status_string(status)); |
d4393e08 | 594 | if (status < 0) { |
f42867e2 | 595 | BT_LOGW_STR("User method failed."); |
f42867e2 PP |
596 | goto end; |
597 | } | |
3230ee6b | 598 | |
d0fea130 PP |
599 | #ifdef BT_DEV_MODE |
600 | /* | |
601 | * There is no way that this iterator could have been finalized | |
602 | * during its "next" method, as the only way to do this is to | |
603 | * put the last iterator's reference, and this can only be done | |
604 | * by its downstream owner. | |
7474e7d3 PP |
605 | * |
606 | * For the same reason, there is no way that this iterator could | |
607 | * have seeked (cannot seek a self message iterator). | |
d0fea130 PP |
608 | */ |
609 | BT_ASSERT(iterator->state == | |
610 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE); | |
611 | #endif | |
8cf27cc5 | 612 | |
d4393e08 | 613 | switch (status) { |
d6e69534 | 614 | case BT_MESSAGE_ITERATOR_STATUS_OK: |
7474e7d3 PP |
615 | BT_ASSERT_PRE(*user_count <= MSG_BATCH_SIZE, |
616 | "Invalid returned message count: greater than " | |
617 | "batch size: count=%" PRIu64 ", batch-size=%u", | |
618 | *user_count, MSG_BATCH_SIZE); | |
d6e69534 | 619 | *msgs = (void *) iterator->base.msgs->pdata; |
d4393e08 | 620 | break; |
d6e69534 | 621 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: |
d4393e08 | 622 | goto end; |
d6e69534 | 623 | case BT_MESSAGE_ITERATOR_STATUS_END: |
d0fea130 PP |
624 | set_self_comp_port_input_msg_iterator_state(iterator, |
625 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED); | |
f42867e2 | 626 | goto end; |
f42867e2 PP |
627 | default: |
628 | /* Unknown non-error status */ | |
629 | abort(); | |
41a2b7ae PP |
630 | } |
631 | ||
632 | end: | |
3230ee6b PP |
633 | return status; |
634 | } | |
635 | ||
d0fea130 | 636 | enum bt_message_iterator_status bt_port_output_message_iterator_next( |
d6e69534 PP |
637 | struct bt_port_output_message_iterator *iterator, |
638 | bt_message_array_const *msgs_to_user, | |
d4393e08 | 639 | uint64_t *count_to_user) |
3230ee6b | 640 | { |
d6e69534 | 641 | enum bt_message_iterator_status status; |
07245ac2 | 642 | enum bt_graph_status graph_status; |
3230ee6b | 643 | |
d6e69534 PP |
644 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
645 | BT_ASSERT_PRE_NON_NULL(msgs_to_user, "Message array (output)"); | |
646 | BT_ASSERT_PRE_NON_NULL(count_to_user, "Message count (output)"); | |
647 | BT_LIB_LOGD("Getting next output port message iterator's messages: " | |
07245ac2 | 648 | "%!+i", iterator); |
d4393e08 | 649 | |
4725a201 PP |
650 | /* |
651 | * As soon as the user calls this function, we mark the graph as | |
652 | * being definitely configured. | |
653 | */ | |
654 | bt_graph_set_is_configured(iterator->graph, true); | |
655 | ||
d94d92ac PP |
656 | graph_status = bt_graph_consume_sink_no_check(iterator->graph, |
657 | iterator->colander); | |
07245ac2 PP |
658 | switch (graph_status) { |
659 | case BT_GRAPH_STATUS_CANCELED: | |
07245ac2 | 660 | case BT_GRAPH_STATUS_AGAIN: |
07245ac2 | 661 | case BT_GRAPH_STATUS_END: |
07245ac2 | 662 | case BT_GRAPH_STATUS_NOMEM: |
d94d92ac | 663 | status = (int) graph_status; |
07245ac2 PP |
664 | break; |
665 | case BT_GRAPH_STATUS_OK: | |
d6e69534 | 666 | status = BT_MESSAGE_ITERATOR_STATUS_OK; |
d4393e08 PP |
667 | |
668 | /* | |
d6e69534 | 669 | * On success, the colander sink moves the messages |
d4393e08 | 670 | * to this iterator's array and sets this iterator's |
d6e69534 | 671 | * message count: move them to the user. |
d4393e08 | 672 | */ |
d6e69534 | 673 | *msgs_to_user = (void *) iterator->base.msgs->pdata; |
d94d92ac | 674 | *count_to_user = iterator->count; |
90157d89 | 675 | break; |
90157d89 | 676 | default: |
07245ac2 | 677 | /* Other errors */ |
d6e69534 | 678 | status = BT_MESSAGE_ITERATOR_STATUS_ERROR; |
90157d89 | 679 | } |
3230ee6b | 680 | |
3230ee6b | 681 | return status; |
53d45b87 JG |
682 | } |
683 | ||
7474e7d3 PP |
684 | struct bt_component * |
685 | bt_self_component_port_input_message_iterator_borrow_component( | |
d6e69534 | 686 | struct bt_self_component_port_input_message_iterator *iterator) |
d94d92ac | 687 | { |
d6e69534 | 688 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac PP |
689 | return iterator->upstream_component; |
690 | } | |
691 | ||
7474e7d3 PP |
692 | const struct bt_component * |
693 | bt_self_component_port_input_message_iterator_borrow_component_const( | |
694 | const struct bt_self_component_port_input_message_iterator *iterator) | |
695 | { | |
696 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
697 | return iterator->upstream_component; | |
698 | } | |
699 | ||
d6e69534 PP |
700 | struct bt_self_component *bt_self_message_iterator_borrow_component( |
701 | struct bt_self_message_iterator *self_iterator) | |
413bc2c4 | 702 | { |
d6e69534 | 703 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac | 704 | (void *) self_iterator; |
90157d89 | 705 | |
d6e69534 | 706 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac | 707 | return (void *) iterator->upstream_component; |
413bc2c4 JG |
708 | } |
709 | ||
d6e69534 PP |
710 | struct bt_self_port_output *bt_self_message_iterator_borrow_port( |
711 | struct bt_self_message_iterator *self_iterator) | |
91457551 | 712 | { |
d6e69534 | 713 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac PP |
714 | (void *) self_iterator; |
715 | ||
d6e69534 | 716 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac | 717 | return (void *) iterator->upstream_port; |
91457551 | 718 | } |
8ed535b5 PP |
719 | |
720 | static | |
d6e69534 | 721 | void bt_port_output_message_iterator_destroy(struct bt_object *obj) |
8ed535b5 | 722 | { |
d6e69534 | 723 | struct bt_port_output_message_iterator *iterator = (void *) obj; |
8ed535b5 | 724 | |
d6e69534 | 725 | BT_LIB_LOGD("Destroying output port message iterator object: %!+i", |
8ed535b5 PP |
726 | iterator); |
727 | BT_LOGD_STR("Putting graph."); | |
d94d92ac | 728 | BT_OBJECT_PUT_REF_AND_RESET(iterator->graph); |
8ed535b5 | 729 | BT_LOGD_STR("Putting colander sink component."); |
d94d92ac | 730 | BT_OBJECT_PUT_REF_AND_RESET(iterator->colander); |
d6e69534 | 731 | destroy_base_message_iterator(obj); |
8ed535b5 PP |
732 | } |
733 | ||
d6e69534 | 734 | struct bt_port_output_message_iterator * |
7474e7d3 | 735 | bt_port_output_message_iterator_create(struct bt_graph *graph, |
0d72b8c3 | 736 | const struct bt_port_output *output_port) |
8ed535b5 | 737 | { |
d6e69534 | 738 | struct bt_port_output_message_iterator *iterator = NULL; |
d94d92ac | 739 | struct bt_component_class_sink *colander_comp_cls = NULL; |
8ed535b5 | 740 | struct bt_component *output_port_comp = NULL; |
d94d92ac | 741 | struct bt_component_sink *colander_comp; |
8ed535b5 | 742 | enum bt_graph_status graph_status; |
d94d92ac | 743 | struct bt_port_input *colander_in_port = NULL; |
8ed535b5 | 744 | struct bt_component_class_sink_colander_data colander_data; |
d4393e08 | 745 | int ret; |
8ed535b5 | 746 | |
d94d92ac | 747 | BT_ASSERT_PRE_NON_NULL(graph, "Graph"); |
f42867e2 | 748 | BT_ASSERT_PRE_NON_NULL(output_port, "Output port"); |
0d72b8c3 PP |
749 | output_port_comp = bt_port_borrow_component_inline( |
750 | (const void *) output_port); | |
f42867e2 PP |
751 | BT_ASSERT_PRE(output_port_comp, |
752 | "Output port has no component: %!+p", output_port); | |
d94d92ac PP |
753 | BT_ASSERT_PRE(bt_component_borrow_graph(output_port_comp) == |
754 | (void *) graph, | |
755 | "Output port is not part of graph: %![graph-]+g, %![port-]+p", | |
756 | graph, output_port); | |
8ed535b5 | 757 | |
d6e69534 PP |
758 | /* Create message iterator */ |
759 | BT_LIB_LOGD("Creating message iterator on output port: " | |
d94d92ac | 760 | "%![port-]+p, %![comp-]+c", output_port, output_port_comp); |
d6e69534 | 761 | iterator = g_new0(struct bt_port_output_message_iterator, 1); |
8ed535b5 | 762 | if (!iterator) { |
d6e69534 | 763 | BT_LOGE_STR("Failed to allocate one output port message iterator."); |
8ed535b5 PP |
764 | goto error; |
765 | } | |
766 | ||
d6e69534 PP |
767 | ret = init_message_iterator((void *) iterator, |
768 | BT_MESSAGE_ITERATOR_TYPE_PORT_OUTPUT, | |
769 | bt_port_output_message_iterator_destroy); | |
d4393e08 | 770 | if (ret) { |
d6e69534 | 771 | /* init_message_iterator() logs errors */ |
65300d60 | 772 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
d4393e08 PP |
773 | goto end; |
774 | } | |
8ed535b5 PP |
775 | |
776 | /* Create colander component */ | |
777 | colander_comp_cls = bt_component_class_sink_colander_get(); | |
778 | if (!colander_comp_cls) { | |
779 | BT_LOGW("Cannot get colander sink component class."); | |
780 | goto error; | |
781 | } | |
782 | ||
398454ed PP |
783 | iterator->graph = graph; |
784 | bt_object_get_no_null_check(iterator->graph); | |
d6e69534 | 785 | colander_data.msgs = (void *) iterator->base.msgs->pdata; |
d4393e08 | 786 | colander_data.count_addr = &iterator->count; |
5fd91d88 PP |
787 | |
788 | /* Hope that nobody uses this very unique name */ | |
d94d92ac | 789 | graph_status = |
0d72b8c3 | 790 | bt_graph_add_sink_component_with_init_method_data( |
5fd91d88 PP |
791 | (void *) graph, colander_comp_cls, |
792 | "colander-36ac3409-b1a8-4d60-ab1f-4fdf341a8fb1", | |
0d72b8c3 | 793 | NULL, &colander_data, (void *) &iterator->colander); |
8ed535b5 | 794 | if (graph_status != BT_GRAPH_STATUS_OK) { |
d94d92ac PP |
795 | BT_LIB_LOGW("Cannot add colander sink component to graph: " |
796 | "%1[graph-]+g, status=%s", graph, | |
8ed535b5 PP |
797 | bt_graph_status_string(graph_status)); |
798 | goto error; | |
799 | } | |
800 | ||
801 | /* | |
802 | * Connect provided output port to the colander component's | |
803 | * input port. | |
804 | */ | |
0d72b8c3 PP |
805 | colander_in_port = |
806 | (void *) bt_component_sink_borrow_input_port_by_index_const( | |
807 | (void *) iterator->colander, 0); | |
f6ccaed9 | 808 | BT_ASSERT(colander_in_port); |
0d72b8c3 | 809 | graph_status = bt_graph_connect_ports(graph, |
8ed535b5 PP |
810 | output_port, colander_in_port, NULL); |
811 | if (graph_status != BT_GRAPH_STATUS_OK) { | |
d94d92ac PP |
812 | BT_LIB_LOGW("Cannot add colander sink component to graph: " |
813 | "%![graph-]+g, %![comp-]+c, status=%s", graph, | |
814 | iterator->colander, | |
8ed535b5 PP |
815 | bt_graph_status_string(graph_status)); |
816 | goto error; | |
817 | } | |
818 | ||
819 | /* | |
820 | * At this point everything went fine. Make the graph | |
d6e69534 | 821 | * nonconsumable forever so that only this message iterator |
8ed535b5 | 822 | * can consume (thanks to bt_graph_consume_sink_no_check()). |
d6e69534 PP |
823 | * This avoids leaking the message created by the colander |
824 | * sink and moved to the message iterator's message | |
07245ac2 | 825 | * member. |
8ed535b5 | 826 | */ |
d94d92ac | 827 | bt_graph_set_can_consume(iterator->graph, false); |
8ed535b5 PP |
828 | goto end; |
829 | ||
830 | error: | |
831 | if (iterator && iterator->graph && iterator->colander) { | |
832 | int ret; | |
833 | ||
834 | /* Remove created colander component from graph if any */ | |
835 | colander_comp = iterator->colander; | |
65300d60 | 836 | BT_OBJECT_PUT_REF_AND_RESET(iterator->colander); |
8ed535b5 PP |
837 | |
838 | /* | |
839 | * At this point the colander component's reference | |
840 | * count is 0 because iterator->colander was the only | |
841 | * owner. We also know that it is not connected because | |
842 | * this is the last operation before this function | |
843 | * succeeds. | |
844 | * | |
845 | * Since we honor the preconditions here, | |
846 | * bt_graph_remove_unconnected_component() always | |
847 | * succeeds. | |
848 | */ | |
849 | ret = bt_graph_remove_unconnected_component(iterator->graph, | |
d94d92ac | 850 | (void *) colander_comp); |
f6ccaed9 | 851 | BT_ASSERT(ret == 0); |
8ed535b5 PP |
852 | } |
853 | ||
65300d60 | 854 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
8ed535b5 PP |
855 | |
856 | end: | |
65300d60 | 857 | bt_object_put_ref(colander_comp_cls); |
8ed535b5 PP |
858 | return (void *) iterator; |
859 | } | |
c5b9b441 | 860 | |
7474e7d3 PP |
861 | bt_bool bt_self_component_port_input_message_iterator_can_seek_ns_from_origin( |
862 | struct bt_self_component_port_input_message_iterator *iterator, | |
863 | int64_t ns_from_origin) | |
864 | { | |
865 | bt_bool can = BT_FALSE; | |
866 | ||
867 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
868 | BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator); | |
869 | BT_ASSERT_PRE(bt_component_borrow_graph(iterator->upstream_component)->is_configured, | |
870 | "Graph is not configured: %!+g", | |
871 | bt_component_borrow_graph(iterator->upstream_component)); | |
872 | ||
873 | if (iterator->methods.can_seek_ns_from_origin) { | |
874 | can = iterator->methods.can_seek_ns_from_origin(iterator, | |
875 | ns_from_origin); | |
876 | goto end; | |
877 | } | |
878 | ||
879 | /* | |
880 | * Automatic seeking fall back: if we can seek to the beginning, | |
881 | * then we can automatically seek to any message. | |
882 | */ | |
883 | if (iterator->methods.can_seek_beginning) { | |
884 | can = iterator->methods.can_seek_beginning(iterator); | |
885 | } | |
886 | ||
887 | end: | |
888 | return can; | |
889 | } | |
890 | ||
891 | bt_bool bt_self_component_port_input_message_iterator_can_seek_beginning( | |
892 | struct bt_self_component_port_input_message_iterator *iterator) | |
893 | { | |
894 | bt_bool can = BT_FALSE; | |
895 | ||
896 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
897 | BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator); | |
898 | BT_ASSERT_PRE(bt_component_borrow_graph(iterator->upstream_component)->is_configured, | |
899 | "Graph is not configured: %!+g", | |
900 | bt_component_borrow_graph(iterator->upstream_component)); | |
901 | ||
902 | if (iterator->methods.can_seek_beginning) { | |
903 | can = iterator->methods.can_seek_beginning(iterator); | |
904 | } | |
905 | ||
906 | return can; | |
907 | } | |
908 | ||
909 | static inline | |
910 | void _set_iterator_state_after_seeking( | |
911 | struct bt_self_component_port_input_message_iterator *iterator, | |
912 | enum bt_message_iterator_status status) | |
913 | { | |
914 | enum bt_self_component_port_input_message_iterator_state new_state = 0; | |
915 | ||
916 | /* Set iterator's state depending on seeking status */ | |
917 | switch (status) { | |
918 | case BT_MESSAGE_ITERATOR_STATUS_OK: | |
919 | new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE; | |
920 | break; | |
921 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: | |
922 | new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN; | |
923 | break; | |
924 | case BT_MESSAGE_ITERATOR_STATUS_ERROR: | |
925 | case BT_MESSAGE_ITERATOR_STATUS_NOMEM: | |
926 | new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR; | |
927 | break; | |
928 | case BT_MESSAGE_ITERATOR_STATUS_END: | |
929 | new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED; | |
930 | break; | |
931 | default: | |
932 | abort(); | |
933 | } | |
934 | ||
935 | set_self_comp_port_input_msg_iterator_state(iterator, new_state); | |
936 | } | |
937 | ||
938 | #ifdef BT_DEV_MODE | |
939 | # define set_iterator_state_after_seeking _set_iterator_state_after_seeking | |
940 | #else | |
941 | # define set_iterator_state_after_seeking(_iter, _status) | |
942 | #endif | |
943 | ||
944 | enum bt_message_iterator_status | |
945 | bt_self_component_port_input_message_iterator_seek_beginning( | |
946 | struct bt_self_component_port_input_message_iterator *iterator) | |
947 | { | |
948 | int status; | |
949 | ||
950 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
951 | BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator); | |
952 | BT_ASSERT_PRE(bt_component_borrow_graph(iterator->upstream_component)->is_configured, | |
953 | "Graph is not configured: %!+g", | |
954 | bt_component_borrow_graph(iterator->upstream_component)); | |
955 | BT_ASSERT_PRE( | |
956 | bt_self_component_port_input_message_iterator_can_seek_beginning( | |
957 | iterator), | |
958 | "Message iterator cannot seek beginning: %!+i", iterator); | |
959 | BT_LIB_LOGD("Calling user's \"seek beginning\" method: %!+i", iterator); | |
960 | set_self_comp_port_input_msg_iterator_state(iterator, | |
961 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING); | |
962 | status = iterator->methods.seek_beginning(iterator); | |
963 | BT_LOGD("User method returned: status=%s", | |
964 | bt_message_iterator_status_string(status)); | |
965 | BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK || | |
966 | status == BT_MESSAGE_ITERATOR_STATUS_ERROR || | |
967 | status == BT_MESSAGE_ITERATOR_STATUS_NOMEM || | |
968 | status == BT_MESSAGE_ITERATOR_STATUS_AGAIN, | |
969 | "Unexpected status: %![iter-]+i, status=%s", | |
970 | iterator, bt_self_message_iterator_status_string(status)); | |
971 | set_iterator_state_after_seeking(iterator, status); | |
972 | return status; | |
973 | } | |
974 | ||
975 | static inline | |
976 | int get_message_ns_from_origin(const struct bt_message *msg, | |
977 | int64_t *ns_from_origin, bool *ignore) | |
978 | { | |
979 | const struct bt_clock_snapshot *clk_snapshot = NULL; | |
980 | int ret = 0; | |
981 | ||
982 | switch (msg->type) { | |
983 | case BT_MESSAGE_TYPE_EVENT: | |
984 | { | |
985 | const struct bt_message_event *event_msg = | |
986 | (const void *) msg; | |
987 | ||
988 | clk_snapshot = event_msg->event->default_cs; | |
989 | BT_ASSERT_PRE(clk_snapshot, | |
990 | "Event has no default clock snapshot: %!+e", | |
991 | event_msg->event); | |
992 | break; | |
993 | } | |
994 | case BT_MESSAGE_TYPE_INACTIVITY: | |
995 | { | |
996 | const struct bt_message_inactivity *inactivity_msg = | |
997 | (const void *) msg; | |
998 | ||
7474e7d3 | 999 | clk_snapshot = inactivity_msg->default_cs; |
16663a5e | 1000 | BT_ASSERT(clk_snapshot); |
7474e7d3 PP |
1001 | break; |
1002 | } | |
16663a5e PP |
1003 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: |
1004 | case BT_MESSAGE_TYPE_PACKET_END: | |
7474e7d3 PP |
1005 | /* Ignore */ |
1006 | goto end; | |
16663a5e PP |
1007 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: |
1008 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
7474e7d3 | 1009 | { |
16663a5e | 1010 | const struct bt_message_discarded_items *disc_items_msg = |
7474e7d3 PP |
1011 | (const void *) msg; |
1012 | ||
16663a5e PP |
1013 | clk_snapshot = disc_items_msg->default_begin_cs; |
1014 | BT_ASSERT_PRE(clk_snapshot, | |
1015 | "Discarded events/packets message has no default clock snapshot: %!+n", | |
1016 | msg); | |
7474e7d3 PP |
1017 | break; |
1018 | } | |
16663a5e | 1019 | case BT_MESSAGE_TYPE_STREAM_ACTIVITY_BEGINNING: |
7474e7d3 | 1020 | { |
16663a5e | 1021 | const struct bt_message_stream_activity *stream_act_msg = |
7474e7d3 PP |
1022 | (const void *) msg; |
1023 | ||
16663a5e PP |
1024 | switch (stream_act_msg->default_cs_state) { |
1025 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_UNKNOWN: | |
1026 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_INFINITE: | |
1027 | /* | |
1028 | * -inf is always less than any requested time, | |
1029 | * and we can't assume any specific time for an | |
1030 | * unknown clock snapshot, so skip this. | |
1031 | */ | |
1032 | goto set_ignore; | |
1033 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_KNOWN: | |
1034 | clk_snapshot = stream_act_msg->default_cs; | |
1035 | BT_ASSERT(clk_snapshot); | |
1036 | break; | |
1037 | default: | |
1038 | abort(); | |
1039 | } | |
1040 | ||
7474e7d3 PP |
1041 | break; |
1042 | } | |
16663a5e PP |
1043 | case BT_MESSAGE_TYPE_STREAM_ACTIVITY_END: |
1044 | { | |
1045 | const struct bt_message_stream_activity *stream_act_msg = | |
1046 | (const void *) msg; | |
1047 | ||
1048 | switch (stream_act_msg->default_cs_state) { | |
1049 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_UNKNOWN: | |
1050 | /* | |
1051 | * We can't assume any specific time for an | |
1052 | * unknown clock snapshot, so skip this. | |
1053 | */ | |
1054 | goto set_ignore; | |
1055 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_INFINITE: | |
1056 | /* | |
1057 | * +inf is always greater than any requested | |
1058 | * time. | |
1059 | */ | |
1060 | *ns_from_origin = INT64_MAX; | |
1061 | goto end; | |
1062 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_KNOWN: | |
1063 | clk_snapshot = stream_act_msg->default_cs; | |
1064 | BT_ASSERT(clk_snapshot); | |
1065 | break; | |
1066 | default: | |
1067 | abort(); | |
1068 | } | |
1069 | ||
1070 | break; | |
1071 | } | |
1072 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
1073 | case BT_MESSAGE_TYPE_STREAM_END: | |
1074 | /* Ignore */ | |
1075 | break; | |
7474e7d3 PP |
1076 | default: |
1077 | abort(); | |
1078 | } | |
1079 | ||
16663a5e | 1080 | set_ignore: |
7474e7d3 PP |
1081 | if (!clk_snapshot) { |
1082 | *ignore = true; | |
1083 | goto end; | |
1084 | } | |
1085 | ||
1086 | ret = bt_clock_snapshot_get_ns_from_origin(clk_snapshot, | |
1087 | ns_from_origin); | |
1088 | ||
1089 | end: | |
1090 | return ret; | |
1091 | } | |
1092 | ||
1093 | static | |
1094 | enum bt_message_iterator_status find_message_ge_ns_from_origin( | |
1095 | struct bt_self_component_port_input_message_iterator *iterator, | |
1096 | int64_t ns_from_origin) | |
1097 | { | |
1098 | int status; | |
1099 | enum bt_self_component_port_input_message_iterator_state init_state = | |
1100 | iterator->state; | |
1101 | const struct bt_message *messages[MSG_BATCH_SIZE]; | |
1102 | uint64_t user_count = 0; | |
1103 | uint64_t i; | |
1104 | ||
1105 | BT_ASSERT(iterator); | |
1106 | memset(&messages[0], 0, sizeof(messages[0]) * MSG_BATCH_SIZE); | |
1107 | ||
1108 | /* | |
1109 | * Make this iterator temporarily active (not seeking) to call | |
1110 | * the "next" method. | |
1111 | */ | |
1112 | set_self_comp_port_input_msg_iterator_state(iterator, | |
1113 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE); | |
1114 | ||
1115 | BT_ASSERT(iterator->methods.next); | |
1116 | ||
1117 | while (true) { | |
1118 | /* | |
1119 | * Call the user's "next" method to get the next | |
1120 | * messages and status. | |
1121 | */ | |
1122 | BT_LOGD_STR("Calling user's \"next\" method."); | |
1123 | status = iterator->methods.next(iterator, | |
1124 | &messages[0], MSG_BATCH_SIZE, &user_count); | |
1125 | BT_LOGD("User method returned: status=%s", | |
1126 | bt_message_iterator_status_string(status)); | |
1127 | ||
1128 | #ifdef BT_DEV_MODE | |
1129 | /* | |
1130 | * The user's "next" method must not do any action which | |
1131 | * would change the iterator's state. | |
1132 | */ | |
1133 | BT_ASSERT(iterator->state == | |
1134 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE); | |
1135 | #endif | |
1136 | ||
1137 | switch (status) { | |
1138 | case BT_MESSAGE_ITERATOR_STATUS_OK: | |
1139 | BT_ASSERT_PRE(user_count <= MSG_BATCH_SIZE, | |
1140 | "Invalid returned message count: greater than " | |
1141 | "batch size: count=%" PRIu64 ", batch-size=%u", | |
1142 | user_count, MSG_BATCH_SIZE); | |
1143 | break; | |
1144 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: | |
1145 | case BT_MESSAGE_ITERATOR_STATUS_ERROR: | |
1146 | case BT_MESSAGE_ITERATOR_STATUS_NOMEM: | |
1147 | case BT_MESSAGE_ITERATOR_STATUS_END: | |
1148 | goto end; | |
1149 | default: | |
1150 | abort(); | |
1151 | } | |
1152 | ||
1153 | /* | |
1154 | * Find first message which has a default clock snapshot | |
1155 | * that is greater than or equal to the requested value. | |
1156 | * | |
1157 | * For event and inactivity messages, compare with the | |
1158 | * default clock snapshot. | |
1159 | * | |
1160 | * For packet beginning messages, compare with the | |
1161 | * default beginning clock snapshot, if any. | |
1162 | * | |
1163 | * For packet end messages, compare with the default end | |
1164 | * clock snapshot, if any. | |
1165 | * | |
1166 | * For stream beginning, stream end, ignore. | |
1167 | */ | |
1168 | for (i = 0; i < user_count; i++) { | |
1169 | const struct bt_message *msg = messages[i]; | |
1170 | int64_t msg_ns_from_origin; | |
1171 | bool ignore = false; | |
1172 | int ret; | |
1173 | ||
1174 | BT_ASSERT(msg); | |
1175 | ret = get_message_ns_from_origin(msg, &msg_ns_from_origin, | |
1176 | &ignore); | |
1177 | if (ret) { | |
1178 | status = BT_MESSAGE_ITERATOR_STATUS_ERROR; | |
1179 | goto end; | |
1180 | } | |
1181 | ||
1182 | if (ignore) { | |
1183 | /* Skip message without a clock snapshot */ | |
1184 | continue; | |
1185 | } | |
1186 | ||
1187 | if (msg_ns_from_origin >= ns_from_origin) { | |
1188 | /* | |
1189 | * We found it: move this message and | |
1190 | * the following ones to the iterator's | |
1191 | * auto-seek message array. | |
1192 | */ | |
1193 | uint64_t j; | |
1194 | ||
1195 | for (j = i; j < user_count; j++) { | |
1196 | iterator->auto_seek_msgs->pdata[j - i] = | |
1197 | (void *) messages[j]; | |
1198 | messages[j] = NULL; | |
1199 | } | |
1200 | ||
1201 | iterator->auto_seek_msg_count = user_count - i; | |
1202 | goto end; | |
1203 | } | |
1204 | ||
1205 | bt_object_put_no_null_check(msg); | |
1206 | messages[i] = NULL; | |
1207 | } | |
1208 | } | |
1209 | ||
1210 | end: | |
1211 | for (i = 0; i < user_count; i++) { | |
1212 | if (messages[i]) { | |
1213 | bt_object_put_no_null_check(messages[i]); | |
1214 | } | |
1215 | } | |
1216 | ||
1217 | set_self_comp_port_input_msg_iterator_state(iterator, init_state); | |
1218 | return status; | |
1219 | } | |
1220 | ||
1221 | static | |
1222 | enum bt_self_message_iterator_status post_auto_seek_next( | |
1223 | struct bt_self_component_port_input_message_iterator *iterator, | |
1224 | bt_message_array_const msgs, uint64_t capacity, | |
1225 | uint64_t *count) | |
1226 | { | |
1227 | BT_ASSERT(iterator->auto_seek_msg_count <= capacity); | |
1228 | BT_ASSERT(iterator->auto_seek_msg_count > 0); | |
1229 | ||
1230 | /* | |
1231 | * Move auto-seek messages to the output array (which is this | |
1232 | * iterator's base message array. | |
1233 | */ | |
1234 | memcpy(&msgs[0], &iterator->auto_seek_msgs->pdata[0], | |
1235 | sizeof(msgs[0]) * iterator->auto_seek_msg_count); | |
1236 | memset(&iterator->auto_seek_msgs->pdata[0], 0, | |
1237 | sizeof(iterator->auto_seek_msgs->pdata[0]) * | |
1238 | iterator->auto_seek_msg_count); | |
1239 | *count = iterator->auto_seek_msg_count; | |
1240 | ||
1241 | /* Restore real user's "next" method */ | |
1242 | switch (iterator->upstream_component->class->type) { | |
1243 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
1244 | { | |
1245 | struct bt_component_class_source *src_comp_cls = | |
1246 | (void *) iterator->upstream_component->class; | |
1247 | ||
1248 | iterator->methods.next = | |
1249 | (bt_self_component_port_input_message_iterator_next_method) | |
1250 | src_comp_cls->methods.msg_iter_next; | |
1251 | break; | |
1252 | } | |
1253 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
1254 | { | |
1255 | struct bt_component_class_filter *flt_comp_cls = | |
1256 | (void *) iterator->upstream_component->class; | |
1257 | ||
1258 | iterator->methods.next = | |
1259 | (bt_self_component_port_input_message_iterator_next_method) | |
1260 | flt_comp_cls->methods.msg_iter_next; | |
1261 | break; | |
1262 | } | |
1263 | default: | |
1264 | abort(); | |
1265 | } | |
1266 | ||
1267 | return BT_SELF_MESSAGE_ITERATOR_STATUS_OK; | |
1268 | } | |
1269 | ||
1270 | enum bt_message_iterator_status | |
1271 | bt_self_component_port_input_message_iterator_seek_ns_from_origin( | |
1272 | struct bt_self_component_port_input_message_iterator *iterator, | |
1273 | int64_t ns_from_origin) | |
1274 | { | |
1275 | int status; | |
1276 | ||
1277 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
1278 | BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator); | |
1279 | BT_ASSERT_PRE(bt_component_borrow_graph(iterator->upstream_component)->is_configured, | |
1280 | "Graph is not configured: %!+g", | |
1281 | bt_component_borrow_graph(iterator->upstream_component)); | |
1282 | BT_ASSERT_PRE( | |
1283 | bt_self_component_port_input_message_iterator_can_seek_ns_from_origin( | |
1284 | iterator, ns_from_origin), | |
1285 | "Message iterator cannot seek nanoseconds from origin: %!+i, " | |
1286 | "ns-from-origin=%" PRId64, iterator, ns_from_origin); | |
1287 | set_self_comp_port_input_msg_iterator_state(iterator, | |
1288 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING); | |
1289 | ||
1290 | if (iterator->methods.seek_ns_from_origin) { | |
1291 | BT_LIB_LOGD("Calling user's \"seek nanoseconds from origin\" method: " | |
1292 | "%![iter-]+i, ns=%" PRId64, iterator, ns_from_origin); | |
1293 | status = iterator->methods.seek_ns_from_origin(iterator, | |
1294 | ns_from_origin); | |
1295 | BT_LOGD("User method returned: status=%s", | |
1296 | bt_message_iterator_status_string(status)); | |
1297 | BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK || | |
1298 | status == BT_MESSAGE_ITERATOR_STATUS_ERROR || | |
1299 | status == BT_MESSAGE_ITERATOR_STATUS_NOMEM || | |
1300 | status == BT_MESSAGE_ITERATOR_STATUS_AGAIN, | |
1301 | "Unexpected status: %![iter-]+i, status=%s", | |
1302 | iterator, | |
1303 | bt_self_message_iterator_status_string(status)); | |
1304 | } else { | |
1305 | /* Start automatic seeking: seek beginning first */ | |
1306 | BT_ASSERT(iterator->methods.can_seek_beginning(iterator)); | |
1307 | BT_ASSERT(iterator->methods.seek_beginning); | |
1308 | BT_LIB_LOGD("Calling user's \"seek beginning\" method: %!+i", | |
1309 | iterator); | |
1310 | status = iterator->methods.seek_beginning(iterator); | |
1311 | BT_LOGD("User method returned: status=%s", | |
1312 | bt_message_iterator_status_string(status)); | |
1313 | BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK || | |
1314 | status == BT_MESSAGE_ITERATOR_STATUS_ERROR || | |
1315 | status == BT_MESSAGE_ITERATOR_STATUS_NOMEM || | |
1316 | status == BT_MESSAGE_ITERATOR_STATUS_AGAIN, | |
1317 | "Unexpected status: %![iter-]+i, status=%s", | |
1318 | iterator, | |
1319 | bt_self_message_iterator_status_string(status)); | |
1320 | switch (status) { | |
1321 | case BT_MESSAGE_ITERATOR_STATUS_OK: | |
1322 | break; | |
1323 | case BT_MESSAGE_ITERATOR_STATUS_ERROR: | |
1324 | case BT_MESSAGE_ITERATOR_STATUS_NOMEM: | |
1325 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: | |
1326 | goto end; | |
1327 | default: | |
1328 | abort(); | |
1329 | } | |
1330 | ||
1331 | /* | |
1332 | * Find the first message which has a default clock | |
1333 | * snapshot greater than or equal to the requested | |
1334 | * nanoseconds from origin, and move the received | |
1335 | * messages from this point in the batch to this | |
1336 | * iterator's auto-seek message array. | |
1337 | */ | |
1338 | status = find_message_ge_ns_from_origin(iterator, | |
1339 | ns_from_origin); | |
1340 | switch (status) { | |
1341 | case BT_MESSAGE_ITERATOR_STATUS_OK: | |
1342 | /* | |
1343 | * Replace the user's "next" method with a | |
1344 | * custom, temporary "next" method which returns | |
1345 | * the messages in the iterator's message array. | |
1346 | */ | |
1347 | iterator->methods.next = | |
1348 | (bt_self_component_port_input_message_iterator_next_method) | |
1349 | post_auto_seek_next; | |
1350 | break; | |
1351 | case BT_MESSAGE_ITERATOR_STATUS_ERROR: | |
1352 | case BT_MESSAGE_ITERATOR_STATUS_NOMEM: | |
1353 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: | |
1354 | goto end; | |
1355 | case BT_MESSAGE_ITERATOR_STATUS_END: | |
1356 | /* | |
1357 | * The iterator reached the end: just return | |
1358 | * `BT_MESSAGE_ITERATOR_STATUS_OK` here, as if | |
1359 | * the seeking operation occured: the next | |
1360 | * "next" method will return | |
1361 | * `BT_MESSAGE_ITERATOR_STATUS_END` itself. | |
1362 | */ | |
1363 | break; | |
1364 | default: | |
1365 | abort(); | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | end: | |
1370 | set_iterator_state_after_seeking(iterator, status); | |
1371 | ||
1372 | if (status == BT_MESSAGE_ITERATOR_STATUS_END) { | |
1373 | status = BT_MESSAGE_ITERATOR_STATUS_OK; | |
1374 | } | |
1375 | ||
1376 | return status; | |
1377 | } | |
1378 | ||
1379 | static inline | |
1380 | bt_self_component_port_input_message_iterator * | |
1381 | borrow_output_port_message_iterator_upstream_iterator( | |
1382 | struct bt_port_output_message_iterator *iterator) | |
1383 | { | |
1384 | struct bt_component_class_sink_colander_priv_data *colander_data; | |
1385 | ||
1386 | BT_ASSERT(iterator); | |
1387 | colander_data = (void *) iterator->colander->parent.user_data; | |
1388 | BT_ASSERT(colander_data); | |
1389 | BT_ASSERT(colander_data->msg_iter); | |
1390 | return colander_data->msg_iter; | |
1391 | } | |
1392 | ||
1393 | bt_bool bt_port_output_message_iterator_can_seek_ns_from_origin( | |
1394 | struct bt_port_output_message_iterator *iterator, | |
1395 | int64_t ns_from_origin) | |
1396 | { | |
1397 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
1398 | return bt_self_component_port_input_message_iterator_can_seek_ns_from_origin( | |
1399 | borrow_output_port_message_iterator_upstream_iterator( | |
1400 | iterator), ns_from_origin); | |
1401 | } | |
1402 | ||
1403 | bt_bool bt_port_output_message_iterator_can_seek_beginning( | |
1404 | struct bt_port_output_message_iterator *iterator) | |
1405 | { | |
1406 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
1407 | return bt_self_component_port_input_message_iterator_can_seek_beginning( | |
1408 | borrow_output_port_message_iterator_upstream_iterator( | |
1409 | iterator)); | |
1410 | } | |
1411 | ||
1412 | enum bt_message_iterator_status bt_port_output_message_iterator_seek_ns_from_origin( | |
1413 | struct bt_port_output_message_iterator *iterator, | |
1414 | int64_t ns_from_origin) | |
1415 | { | |
1416 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
1417 | return bt_self_component_port_input_message_iterator_seek_ns_from_origin( | |
1418 | borrow_output_port_message_iterator_upstream_iterator(iterator), | |
1419 | ns_from_origin); | |
1420 | } | |
1421 | ||
1422 | enum bt_message_iterator_status bt_port_output_message_iterator_seek_beginning( | |
1423 | struct bt_port_output_message_iterator *iterator) | |
1424 | { | |
1425 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
1426 | return bt_self_component_port_input_message_iterator_seek_beginning( | |
1427 | borrow_output_port_message_iterator_upstream_iterator( | |
1428 | iterator)); | |
1429 | } | |
1430 | ||
d6e69534 PP |
1431 | void bt_port_output_message_iterator_get_ref( |
1432 | const struct bt_port_output_message_iterator *iterator) | |
c5b9b441 PP |
1433 | { |
1434 | bt_object_get_ref(iterator); | |
1435 | } | |
1436 | ||
d6e69534 PP |
1437 | void bt_port_output_message_iterator_put_ref( |
1438 | const struct bt_port_output_message_iterator *iterator) | |
c5b9b441 PP |
1439 | { |
1440 | bt_object_put_ref(iterator); | |
1441 | } | |
1442 | ||
d6e69534 PP |
1443 | void bt_self_component_port_input_message_iterator_get_ref( |
1444 | const struct bt_self_component_port_input_message_iterator *iterator) | |
c5b9b441 PP |
1445 | { |
1446 | bt_object_get_ref(iterator); | |
1447 | } | |
1448 | ||
d6e69534 PP |
1449 | void bt_self_component_port_input_message_iterator_put_ref( |
1450 | const struct bt_self_component_port_input_message_iterator *iterator) | |
c5b9b441 PP |
1451 | { |
1452 | bt_object_put_ref(iterator); | |
1453 | } |