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" |
3fadfbc0 | 25 | #include <babeltrace2/lib-logging-internal.h> |
5af447e5 | 26 | |
3fadfbc0 MJ |
27 | #include <babeltrace2/compiler-internal.h> |
28 | #include <babeltrace2/trace-ir/clock-class-internal.h> | |
29 | #include <babeltrace2/trace-ir/clock-snapshot-internal.h> | |
30 | #include <babeltrace2/trace-ir/field.h> | |
31 | #include <babeltrace2/trace-ir/event-const.h> | |
32 | #include <babeltrace2/trace-ir/event-internal.h> | |
33 | #include <babeltrace2/trace-ir/packet-const.h> | |
34 | #include <babeltrace2/trace-ir/packet-internal.h> | |
35 | #include <babeltrace2/trace-ir/stream-internal.h> | |
36 | #include <babeltrace2/graph/connection-const.h> | |
37 | #include <babeltrace2/graph/connection-internal.h> | |
38 | #include <babeltrace2/graph/component-const.h> | |
39 | #include <babeltrace2/graph/component-internal.h> | |
40 | #include <babeltrace2/graph/component-source-internal.h> | |
41 | #include <babeltrace2/graph/component-class-internal.h> | |
42 | #include <babeltrace2/graph/component-class-sink-colander-internal.h> | |
43 | #include <babeltrace2/graph/component-sink-const.h> | |
44 | #include <babeltrace2/graph/component-sink-internal.h> | |
45 | #include <babeltrace2/graph/message-const.h> | |
46 | #include <babeltrace2/graph/message-iterator-const.h> | |
47 | #include <babeltrace2/graph/message-iterator-internal.h> | |
48 | #include <babeltrace2/graph/self-component-port-input-message-iterator.h> | |
49 | #include <babeltrace2/graph/port-output-message-iterator.h> | |
50 | #include <babeltrace2/graph/message-internal.h> | |
51 | #include <babeltrace2/graph/message-event-const.h> | |
52 | #include <babeltrace2/graph/message-event-internal.h> | |
53 | #include <babeltrace2/graph/message-packet-beginning-const.h> | |
54 | #include <babeltrace2/graph/message-packet-end-const.h> | |
55 | #include <babeltrace2/graph/message-packet-internal.h> | |
56 | #include <babeltrace2/graph/message-stream-beginning-const.h> | |
57 | #include <babeltrace2/graph/message-stream-end-const.h> | |
58 | #include <babeltrace2/graph/message-stream-internal.h> | |
59 | #include <babeltrace2/graph/message-message-iterator-inactivity-internal.h> | |
60 | #include <babeltrace2/graph/message-discarded-items-internal.h> | |
61 | #include <babeltrace2/graph/message-stream-activity-internal.h> | |
62 | #include <babeltrace2/graph/port-const.h> | |
63 | #include <babeltrace2/graph/graph.h> | |
64 | #include <babeltrace2/graph/graph-const.h> | |
65 | #include <babeltrace2/graph/graph-internal.h> | |
66 | #include <babeltrace2/types.h> | |
67 | #include <babeltrace2/assert-internal.h> | |
68 | #include <babeltrace2/assert-pre-internal.h> | |
fa054faf | 69 | #include <stdint.h> |
2ec84d26 | 70 | #include <inttypes.h> |
0fbb9a9f | 71 | #include <stdlib.h> |
3230ee6b | 72 | |
d4393e08 PP |
73 | /* |
74 | * TODO: Use graph's state (number of active iterators, etc.) and | |
75 | * possibly system specifications to make a better guess than this. | |
76 | */ | |
d6e69534 | 77 | #define MSG_BATCH_SIZE 15 |
d4393e08 | 78 | |
7474e7d3 PP |
79 | #define BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(_iter) \ |
80 | BT_ASSERT_PRE((_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE || \ | |
81 | (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED || \ | |
82 | (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN || \ | |
83 | (_iter)->state == BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR, \ | |
84 | "Message iterator is in the wrong state: %!+i", _iter) | |
47e5a032 | 85 | |
d0fea130 | 86 | static inline |
003e713f | 87 | void set_self_comp_port_input_msg_iterator_state( |
d0fea130 PP |
88 | struct bt_self_component_port_input_message_iterator *iterator, |
89 | enum bt_self_component_port_input_message_iterator_state state) | |
90 | { | |
91 | BT_ASSERT(iterator); | |
7474e7d3 | 92 | BT_LIB_LOGD("Updating message iterator's state: new-state=%s", |
d0fea130 PP |
93 | bt_self_component_port_input_message_iterator_state_string(state)); |
94 | iterator->state = state; | |
95 | } | |
96 | ||
8ed535b5 | 97 | static |
d6e69534 | 98 | void destroy_base_message_iterator(struct bt_object *obj) |
8ed535b5 | 99 | { |
d6e69534 | 100 | struct bt_message_iterator *iterator = (void *) obj; |
d4393e08 PP |
101 | |
102 | BT_ASSERT(iterator); | |
103 | ||
d6e69534 PP |
104 | if (iterator->msgs) { |
105 | g_ptr_array_free(iterator->msgs, TRUE); | |
106 | iterator->msgs = NULL; | |
d4393e08 PP |
107 | } |
108 | ||
109 | g_free(iterator); | |
8ed535b5 PP |
110 | } |
111 | ||
47e5a032 | 112 | static |
d6e69534 | 113 | void bt_self_component_port_input_message_iterator_destroy(struct bt_object *obj) |
47e5a032 | 114 | { |
d6e69534 | 115 | struct bt_self_component_port_input_message_iterator *iterator; |
8738a040 | 116 | |
f6ccaed9 | 117 | BT_ASSERT(obj); |
d3eb6e8f | 118 | |
bd14d768 | 119 | /* |
d6e69534 | 120 | * The message iterator's reference count is 0 if we're |
bd14d768 PP |
121 | * here. Increment it to avoid a double-destroy (possibly |
122 | * infinitely recursive). This could happen for example if the | |
d6e69534 | 123 | * message iterator's finalization function does |
d94d92ac PP |
124 | * bt_object_get_ref() (or anything that causes |
125 | * bt_object_get_ref() to be called) on itself (ref. count goes | |
126 | * from 0 to 1), and then bt_object_put_ref(): the reference | |
127 | * count would go from 1 to 0 again and this function would be | |
128 | * called again. | |
bd14d768 | 129 | */ |
3fea54f6 | 130 | obj->ref_count++; |
07245ac2 | 131 | iterator = (void *) obj; |
d6e69534 | 132 | BT_LIB_LOGD("Destroying self component input port message iterator object: " |
d94d92ac | 133 | "%!+i", iterator); |
d0fea130 | 134 | bt_self_component_port_input_message_iterator_try_finalize(iterator); |
d3eb6e8f | 135 | |
bd14d768 PP |
136 | if (iterator->connection) { |
137 | /* | |
138 | * Remove ourself from the originating connection so | |
139 | * that it does not try to finalize a dangling pointer | |
140 | * later. | |
141 | */ | |
142 | bt_connection_remove_iterator(iterator->connection, iterator); | |
d94d92ac | 143 | iterator->connection = NULL; |
bd14d768 PP |
144 | } |
145 | ||
7474e7d3 | 146 | if (iterator->auto_seek_msgs) { |
5b9e151d PP |
147 | while (!g_queue_is_empty(iterator->auto_seek_msgs)) { |
148 | bt_object_put_no_null_check( | |
149 | g_queue_pop_tail(iterator->auto_seek_msgs)); | |
7474e7d3 PP |
150 | } |
151 | ||
5b9e151d | 152 | g_queue_free(iterator->auto_seek_msgs); |
7474e7d3 PP |
153 | iterator->auto_seek_msgs = NULL; |
154 | } | |
155 | ||
d6e69534 | 156 | destroy_base_message_iterator(obj); |
47e5a032 JG |
157 | } |
158 | ||
bd14d768 | 159 | BT_HIDDEN |
d0fea130 | 160 | void bt_self_component_port_input_message_iterator_try_finalize( |
d6e69534 | 161 | struct bt_self_component_port_input_message_iterator *iterator) |
bd14d768 | 162 | { |
d94d92ac PP |
163 | typedef void (*method_t)(void *); |
164 | ||
bd14d768 | 165 | struct bt_component_class *comp_class = NULL; |
d94d92ac | 166 | method_t method = NULL; |
bd14d768 | 167 | |
f6ccaed9 | 168 | BT_ASSERT(iterator); |
bd14d768 PP |
169 | |
170 | switch (iterator->state) { | |
d6e69534 | 171 | case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_NON_INITIALIZED: |
088d4023 | 172 | /* Skip user finalization if user initialization failed */ |
d6e69534 | 173 | BT_LIB_LOGD("Not finalizing non-initialized message iterator: " |
d94d92ac | 174 | "%!+i", iterator); |
d0fea130 | 175 | goto end; |
d6e69534 | 176 | case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED: |
bd14d768 | 177 | /* Already finalized */ |
d6e69534 | 178 | BT_LIB_LOGD("Not finalizing message iterator: already finalized: " |
d94d92ac | 179 | "%!+i", iterator); |
d0fea130 PP |
180 | goto end; |
181 | case BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING: | |
182 | /* Already finalized */ | |
183 | BT_LIB_LOGF("Message iterator is already being finalized: " | |
184 | "%!+i", iterator); | |
185 | abort(); | |
bd14d768 PP |
186 | default: |
187 | break; | |
188 | } | |
189 | ||
d6e69534 | 190 | BT_LIB_LOGD("Finalizing message iterator: %!+i", iterator); |
d0fea130 PP |
191 | set_self_comp_port_input_msg_iterator_state(iterator, |
192 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZING); | |
f6ccaed9 | 193 | BT_ASSERT(iterator->upstream_component); |
bd14d768 PP |
194 | comp_class = iterator->upstream_component->class; |
195 | ||
196 | /* Call user-defined destroy method */ | |
197 | switch (comp_class->type) { | |
198 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
199 | { | |
d94d92ac PP |
200 | struct bt_component_class_source *src_comp_cls = |
201 | (void *) comp_class; | |
bd14d768 | 202 | |
d6e69534 | 203 | method = (method_t) src_comp_cls->methods.msg_iter_finalize; |
bd14d768 PP |
204 | break; |
205 | } | |
206 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
207 | { | |
d94d92ac PP |
208 | struct bt_component_class_filter *flt_comp_cls = |
209 | (void *) comp_class; | |
bd14d768 | 210 | |
d6e69534 | 211 | method = (method_t) flt_comp_cls->methods.msg_iter_finalize; |
bd14d768 PP |
212 | break; |
213 | } | |
214 | default: | |
215 | /* Unreachable */ | |
0fbb9a9f | 216 | abort(); |
bd14d768 PP |
217 | } |
218 | ||
d94d92ac PP |
219 | if (method) { |
220 | BT_LIB_LOGD("Calling user's finalization method: %!+i", | |
5af447e5 | 221 | iterator); |
d94d92ac | 222 | method(iterator); |
bd14d768 PP |
223 | } |
224 | ||
bd14d768 PP |
225 | iterator->upstream_component = NULL; |
226 | iterator->upstream_port = NULL; | |
d0fea130 PP |
227 | set_self_comp_port_input_msg_iterator_state(iterator, |
228 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_FINALIZED); | |
d6e69534 | 229 | BT_LIB_LOGD("Finalized message iterator: %!+i", iterator); |
d0fea130 PP |
230 | |
231 | end: | |
232 | return; | |
bd14d768 PP |
233 | } |
234 | ||
235 | BT_HIDDEN | |
d6e69534 PP |
236 | void bt_self_component_port_input_message_iterator_set_connection( |
237 | struct bt_self_component_port_input_message_iterator *iterator, | |
bd14d768 PP |
238 | struct bt_connection *connection) |
239 | { | |
f6ccaed9 | 240 | BT_ASSERT(iterator); |
bd14d768 | 241 | iterator->connection = connection; |
d6e69534 | 242 | BT_LIB_LOGV("Set message iterator's connection: " |
d94d92ac | 243 | "%![iter-]+i, %![conn-]+x", iterator, connection); |
bd14d768 PP |
244 | } |
245 | ||
90157d89 | 246 | static |
d6e69534 PP |
247 | int init_message_iterator(struct bt_message_iterator *iterator, |
248 | enum bt_message_iterator_type type, | |
90157d89 PP |
249 | bt_object_release_func destroy) |
250 | { | |
d4393e08 PP |
251 | int ret = 0; |
252 | ||
3fea54f6 | 253 | bt_object_init_shared(&iterator->base, destroy); |
90157d89 | 254 | iterator->type = type; |
d6e69534 PP |
255 | iterator->msgs = g_ptr_array_new(); |
256 | if (!iterator->msgs) { | |
d4393e08 PP |
257 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
258 | ret = -1; | |
259 | goto end; | |
260 | } | |
261 | ||
d6e69534 | 262 | g_ptr_array_set_size(iterator->msgs, MSG_BATCH_SIZE); |
d4393e08 PP |
263 | |
264 | end: | |
265 | return ret; | |
90157d89 PP |
266 | } |
267 | ||
7474e7d3 PP |
268 | static |
269 | bt_bool can_seek_ns_from_origin_true( | |
270 | struct bt_self_component_port_input_message_iterator *iterator, | |
271 | int64_t ns_from_origin) | |
272 | { | |
273 | return BT_TRUE; | |
274 | } | |
275 | ||
276 | static | |
277 | bt_bool can_seek_beginning_true( | |
278 | struct bt_self_component_port_input_message_iterator *iterator) | |
279 | { | |
280 | return BT_TRUE; | |
281 | } | |
282 | ||
d94d92ac | 283 | static |
d6e69534 PP |
284 | struct bt_self_component_port_input_message_iterator * |
285 | bt_self_component_port_input_message_iterator_create_initial( | |
3230ee6b | 286 | struct bt_component *upstream_comp, |
d94d92ac | 287 | struct bt_port *upstream_port) |
47e5a032 | 288 | { |
d4393e08 | 289 | int ret; |
d6e69534 | 290 | struct bt_self_component_port_input_message_iterator *iterator = NULL; |
47e5a032 | 291 | |
f6ccaed9 PP |
292 | BT_ASSERT(upstream_comp); |
293 | BT_ASSERT(upstream_port); | |
f6ccaed9 | 294 | BT_ASSERT(bt_port_is_connected(upstream_port)); |
d6e69534 | 295 | BT_LIB_LOGD("Creating initial message iterator on self component input port: " |
d94d92ac PP |
296 | "%![up-comp-]+c, %![up-port-]+p", upstream_comp, upstream_port); |
297 | BT_ASSERT(bt_component_get_class_type(upstream_comp) == | |
298 | BT_COMPONENT_CLASS_TYPE_SOURCE || | |
299 | bt_component_get_class_type(upstream_comp) == | |
300 | BT_COMPONENT_CLASS_TYPE_FILTER); | |
301 | iterator = g_new0( | |
d6e69534 | 302 | struct bt_self_component_port_input_message_iterator, 1); |
47e5a032 | 303 | if (!iterator) { |
d94d92ac | 304 | BT_LOGE_STR("Failed to allocate one self component input port " |
d6e69534 | 305 | "message iterator."); |
73d5c1ad | 306 | goto end; |
47e5a032 JG |
307 | } |
308 | ||
d6e69534 PP |
309 | ret = init_message_iterator((void *) iterator, |
310 | BT_MESSAGE_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT, | |
311 | bt_self_component_port_input_message_iterator_destroy); | |
d4393e08 | 312 | if (ret) { |
d6e69534 | 313 | /* init_message_iterator() logs errors */ |
d94d92ac | 314 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
d4393e08 PP |
315 | goto end; |
316 | } | |
3230ee6b | 317 | |
5b9e151d | 318 | iterator->auto_seek_msgs = g_queue_new(); |
7474e7d3 | 319 | if (!iterator->auto_seek_msgs) { |
5b9e151d | 320 | BT_LOGE_STR("Failed to allocate a GQueue."); |
7474e7d3 | 321 | ret = -1; |
73d5c1ad | 322 | goto end; |
3230ee6b PP |
323 | } |
324 | ||
bd14d768 PP |
325 | iterator->upstream_component = upstream_comp; |
326 | iterator->upstream_port = upstream_port; | |
d94d92ac | 327 | iterator->connection = iterator->upstream_port->connection; |
5c563278 | 328 | iterator->graph = bt_component_borrow_graph(upstream_comp); |
d0fea130 PP |
329 | set_self_comp_port_input_msg_iterator_state(iterator, |
330 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_NON_INITIALIZED); | |
7474e7d3 PP |
331 | |
332 | switch (iterator->upstream_component->class->type) { | |
333 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
334 | { | |
335 | struct bt_component_class_source *src_comp_cls = | |
336 | (void *) iterator->upstream_component->class; | |
337 | ||
338 | iterator->methods.next = | |
339 | (bt_self_component_port_input_message_iterator_next_method) | |
340 | src_comp_cls->methods.msg_iter_next; | |
341 | iterator->methods.seek_ns_from_origin = | |
342 | (bt_self_component_port_input_message_iterator_seek_ns_from_origin_method) | |
343 | src_comp_cls->methods.msg_iter_seek_ns_from_origin; | |
344 | iterator->methods.seek_beginning = | |
345 | (bt_self_component_port_input_message_iterator_seek_beginning_method) | |
346 | src_comp_cls->methods.msg_iter_seek_beginning; | |
347 | iterator->methods.can_seek_ns_from_origin = | |
348 | (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method) | |
349 | src_comp_cls->methods.msg_iter_can_seek_ns_from_origin; | |
350 | iterator->methods.can_seek_beginning = | |
351 | (bt_self_component_port_input_message_iterator_can_seek_beginning_method) | |
352 | src_comp_cls->methods.msg_iter_can_seek_beginning; | |
353 | break; | |
354 | } | |
355 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
356 | { | |
357 | struct bt_component_class_filter *flt_comp_cls = | |
358 | (void *) iterator->upstream_component->class; | |
359 | ||
360 | iterator->methods.next = | |
361 | (bt_self_component_port_input_message_iterator_next_method) | |
362 | flt_comp_cls->methods.msg_iter_next; | |
363 | iterator->methods.seek_ns_from_origin = | |
364 | (bt_self_component_port_input_message_iterator_seek_ns_from_origin_method) | |
365 | flt_comp_cls->methods.msg_iter_seek_ns_from_origin; | |
366 | iterator->methods.seek_beginning = | |
367 | (bt_self_component_port_input_message_iterator_seek_beginning_method) | |
368 | flt_comp_cls->methods.msg_iter_seek_beginning; | |
369 | iterator->methods.can_seek_ns_from_origin = | |
370 | (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method) | |
371 | flt_comp_cls->methods.msg_iter_can_seek_ns_from_origin; | |
372 | iterator->methods.can_seek_beginning = | |
373 | (bt_self_component_port_input_message_iterator_can_seek_beginning_method) | |
374 | flt_comp_cls->methods.msg_iter_can_seek_beginning; | |
375 | break; | |
376 | } | |
377 | default: | |
378 | abort(); | |
379 | } | |
380 | ||
381 | if (iterator->methods.seek_ns_from_origin && | |
382 | !iterator->methods.can_seek_ns_from_origin) { | |
383 | iterator->methods.can_seek_ns_from_origin = | |
384 | (bt_self_component_port_input_message_iterator_can_seek_ns_from_origin_method) | |
385 | can_seek_ns_from_origin_true; | |
386 | } | |
387 | ||
388 | if (iterator->methods.seek_beginning && | |
389 | !iterator->methods.can_seek_beginning) { | |
390 | iterator->methods.can_seek_beginning = | |
391 | (bt_self_component_port_input_message_iterator_seek_beginning_method) | |
392 | can_seek_beginning_true; | |
393 | } | |
394 | ||
d6e69534 | 395 | BT_LIB_LOGD("Created initial message iterator on self component input port: " |
d94d92ac PP |
396 | "%![up-port-]+p, %![up-comp-]+c, %![iter-]+i", |
397 | upstream_port, upstream_comp, iterator); | |
3230ee6b | 398 | |
47e5a032 | 399 | end: |
d94d92ac | 400 | return iterator; |
47e5a032 JG |
401 | } |
402 | ||
d6e69534 PP |
403 | struct bt_self_component_port_input_message_iterator * |
404 | bt_self_component_port_input_message_iterator_create( | |
d94d92ac | 405 | struct bt_self_component_port_input *self_port) |
ea8d3e58 | 406 | { |
d6e69534 | 407 | typedef enum bt_self_message_iterator_status (*init_method_t)( |
d94d92ac PP |
408 | void *, void *, void *); |
409 | ||
410 | init_method_t init_method = NULL; | |
d6e69534 | 411 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac PP |
412 | NULL; |
413 | struct bt_port *port = (void *) self_port; | |
414 | struct bt_port *upstream_port; | |
415 | struct bt_component *comp; | |
416 | struct bt_component *upstream_comp; | |
417 | struct bt_component_class *upstream_comp_cls; | |
418 | ||
419 | BT_ASSERT_PRE_NON_NULL(port, "Port"); | |
0d72b8c3 | 420 | comp = bt_port_borrow_component_inline(port); |
d94d92ac PP |
421 | BT_ASSERT_PRE(bt_port_is_connected(port), |
422 | "Port is not connected: %![port-]+p", port); | |
423 | BT_ASSERT_PRE(comp, "Port is not part of a component: %![port-]+p", | |
424 | port); | |
425 | BT_ASSERT_PRE(!bt_component_graph_is_canceled(comp), | |
426 | "Port's component's graph is canceled: " | |
427 | "%![port-]+p, %![comp-]+c", port, comp); | |
428 | BT_ASSERT(port->connection); | |
429 | upstream_port = port->connection->upstream_port; | |
430 | BT_ASSERT(upstream_port); | |
0d72b8c3 | 431 | upstream_comp = bt_port_borrow_component_inline(upstream_port); |
d94d92ac | 432 | BT_ASSERT(upstream_comp); |
5badd463 PP |
433 | BT_ASSERT_PRE( |
434 | bt_component_borrow_graph(upstream_comp)->config_state != | |
435 | BT_GRAPH_CONFIGURATION_STATE_CONFIGURING, | |
436 | "Graph is not configured: %!+g", | |
437 | bt_component_borrow_graph(upstream_comp)); | |
d94d92ac PP |
438 | upstream_comp_cls = upstream_comp->class; |
439 | BT_ASSERT(upstream_comp->class->type == | |
440 | BT_COMPONENT_CLASS_TYPE_SOURCE || | |
441 | upstream_comp->class->type == | |
442 | BT_COMPONENT_CLASS_TYPE_FILTER); | |
d6e69534 | 443 | iterator = bt_self_component_port_input_message_iterator_create_initial( |
d94d92ac PP |
444 | upstream_comp, upstream_port); |
445 | if (!iterator) { | |
446 | BT_LOGW_STR("Cannot create self component input port " | |
d6e69534 | 447 | "message iterator."); |
d94d92ac PP |
448 | goto end; |
449 | } | |
890882ef | 450 | |
d94d92ac PP |
451 | switch (upstream_comp_cls->type) { |
452 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
453 | { | |
454 | struct bt_component_class_source *src_comp_cls = | |
455 | (void *) upstream_comp_cls; | |
456 | ||
457 | init_method = | |
d6e69534 | 458 | (init_method_t) src_comp_cls->methods.msg_iter_init; |
d94d92ac PP |
459 | break; |
460 | } | |
461 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
462 | { | |
463 | struct bt_component_class_filter *flt_comp_cls = | |
464 | (void *) upstream_comp_cls; | |
465 | ||
466 | init_method = | |
d6e69534 | 467 | (init_method_t) flt_comp_cls->methods.msg_iter_init; |
d94d92ac PP |
468 | break; |
469 | } | |
470 | default: | |
471 | /* Unreachable */ | |
472 | abort(); | |
473 | } | |
474 | ||
475 | if (init_method) { | |
476 | int iter_status; | |
477 | ||
478 | BT_LIB_LOGD("Calling user's initialization method: %!+i", iterator); | |
479 | iter_status = init_method(iterator, upstream_comp, | |
480 | upstream_port); | |
481 | BT_LOGD("User method returned: status=%s", | |
d6e69534 PP |
482 | bt_message_iterator_status_string(iter_status)); |
483 | if (iter_status != BT_MESSAGE_ITERATOR_STATUS_OK) { | |
d94d92ac | 484 | BT_LOGW_STR("Initialization method failed."); |
d0fea130 | 485 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
d94d92ac PP |
486 | goto end; |
487 | } | |
488 | } | |
489 | ||
d0fea130 PP |
490 | set_self_comp_port_input_msg_iterator_state(iterator, |
491 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE); | |
d94d92ac | 492 | g_ptr_array_add(port->connection->iterators, iterator); |
d6e69534 | 493 | BT_LIB_LOGD("Created message iterator on self component input port: " |
d94d92ac PP |
494 | "%![up-port-]+p, %![up-comp-]+c, %![iter-]+i", |
495 | upstream_port, upstream_comp, iterator); | |
496 | ||
497 | end: | |
498 | return iterator; | |
ea8d3e58 JG |
499 | } |
500 | ||
d6e69534 PP |
501 | void *bt_self_message_iterator_get_data( |
502 | const struct bt_self_message_iterator *self_iterator) | |
ea8d3e58 | 503 | { |
d6e69534 | 504 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac | 505 | (void *) self_iterator; |
ea8d3e58 | 506 | |
d6e69534 | 507 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac | 508 | return iterator->user_data; |
8738a040 | 509 | } |
413bc2c4 | 510 | |
d6e69534 PP |
511 | void bt_self_message_iterator_set_data( |
512 | struct bt_self_message_iterator *self_iterator, void *data) | |
5c563278 | 513 | { |
d6e69534 | 514 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac | 515 | (void *) self_iterator; |
5c563278 | 516 | |
d6e69534 | 517 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac | 518 | iterator->user_data = data; |
d6e69534 | 519 | BT_LIB_LOGV("Set message iterator's user data: " |
d94d92ac | 520 | "%!+i, user-data-addr=%p", iterator, data); |
5c563278 PP |
521 | } |
522 | ||
d6e69534 PP |
523 | enum bt_message_iterator_status |
524 | bt_self_component_port_input_message_iterator_next( | |
525 | struct bt_self_component_port_input_message_iterator *iterator, | |
526 | bt_message_array_const *msgs, uint64_t *user_count) | |
3230ee6b | 527 | { |
d6e69534 | 528 | int status = BT_MESSAGE_ITERATOR_STATUS_OK; |
d94d92ac | 529 | |
d6e69534 PP |
530 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
531 | BT_ASSERT_PRE_NON_NULL(msgs, "Message array (output)"); | |
532 | BT_ASSERT_PRE_NON_NULL(user_count, "Message count (output)"); | |
f42867e2 | 533 | BT_ASSERT_PRE(iterator->state == |
d6e69534 PP |
534 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE, |
535 | "Message iterator's \"next\" called, but " | |
7474e7d3 | 536 | "message iterator is in the wrong state: %!+i", iterator); |
f42867e2 PP |
537 | BT_ASSERT(iterator->upstream_component); |
538 | BT_ASSERT(iterator->upstream_component->class); | |
5badd463 PP |
539 | BT_ASSERT_PRE( |
540 | bt_component_borrow_graph(iterator->upstream_component)->config_state != | |
541 | BT_GRAPH_CONFIGURATION_STATE_CONFIGURING, | |
4725a201 PP |
542 | "Graph is not configured: %!+g", |
543 | bt_component_borrow_graph(iterator->upstream_component)); | |
d94d92ac | 544 | BT_LIB_LOGD("Getting next self component input port " |
d6e69534 | 545 | "message iterator's messages: %!+i", iterator); |
d3eb6e8f | 546 | |
3230ee6b | 547 | /* |
d6e69534 | 548 | * Call the user's "next" method to get the next messages |
fa054faf | 549 | * and status. |
3230ee6b | 550 | */ |
7474e7d3 | 551 | BT_ASSERT(iterator->methods.next); |
f42867e2 | 552 | BT_LOGD_STR("Calling user's \"next\" method."); |
7474e7d3 PP |
553 | status = iterator->methods.next(iterator, |
554 | (void *) iterator->base.msgs->pdata, MSG_BATCH_SIZE, | |
555 | user_count); | |
f42867e2 | 556 | BT_LOGD("User method returned: status=%s", |
d6e69534 | 557 | bt_message_iterator_status_string(status)); |
d4393e08 | 558 | if (status < 0) { |
f42867e2 | 559 | BT_LOGW_STR("User method failed."); |
f42867e2 PP |
560 | goto end; |
561 | } | |
3230ee6b | 562 | |
d0fea130 PP |
563 | /* |
564 | * There is no way that this iterator could have been finalized | |
565 | * during its "next" method, as the only way to do this is to | |
566 | * put the last iterator's reference, and this can only be done | |
567 | * by its downstream owner. | |
7474e7d3 PP |
568 | * |
569 | * For the same reason, there is no way that this iterator could | |
570 | * have seeked (cannot seek a self message iterator). | |
d0fea130 PP |
571 | */ |
572 | BT_ASSERT(iterator->state == | |
573 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE); | |
8cf27cc5 | 574 | |
d4393e08 | 575 | switch (status) { |
d6e69534 | 576 | case BT_MESSAGE_ITERATOR_STATUS_OK: |
7474e7d3 PP |
577 | BT_ASSERT_PRE(*user_count <= MSG_BATCH_SIZE, |
578 | "Invalid returned message count: greater than " | |
579 | "batch size: count=%" PRIu64 ", batch-size=%u", | |
580 | *user_count, MSG_BATCH_SIZE); | |
d6e69534 | 581 | *msgs = (void *) iterator->base.msgs->pdata; |
d4393e08 | 582 | break; |
d6e69534 | 583 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: |
d4393e08 | 584 | goto end; |
d6e69534 | 585 | case BT_MESSAGE_ITERATOR_STATUS_END: |
d0fea130 PP |
586 | set_self_comp_port_input_msg_iterator_state(iterator, |
587 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED); | |
f42867e2 | 588 | goto end; |
f42867e2 PP |
589 | default: |
590 | /* Unknown non-error status */ | |
591 | abort(); | |
41a2b7ae PP |
592 | } |
593 | ||
594 | end: | |
3230ee6b PP |
595 | return status; |
596 | } | |
597 | ||
d0fea130 | 598 | enum bt_message_iterator_status bt_port_output_message_iterator_next( |
d6e69534 PP |
599 | struct bt_port_output_message_iterator *iterator, |
600 | bt_message_array_const *msgs_to_user, | |
d4393e08 | 601 | uint64_t *count_to_user) |
3230ee6b | 602 | { |
d6e69534 | 603 | enum bt_message_iterator_status status; |
07245ac2 | 604 | enum bt_graph_status graph_status; |
3230ee6b | 605 | |
d6e69534 PP |
606 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
607 | BT_ASSERT_PRE_NON_NULL(msgs_to_user, "Message array (output)"); | |
608 | BT_ASSERT_PRE_NON_NULL(count_to_user, "Message count (output)"); | |
609 | BT_LIB_LOGD("Getting next output port message iterator's messages: " | |
07245ac2 | 610 | "%!+i", iterator); |
d94d92ac PP |
611 | graph_status = bt_graph_consume_sink_no_check(iterator->graph, |
612 | iterator->colander); | |
07245ac2 PP |
613 | switch (graph_status) { |
614 | case BT_GRAPH_STATUS_CANCELED: | |
07245ac2 | 615 | case BT_GRAPH_STATUS_AGAIN: |
07245ac2 | 616 | case BT_GRAPH_STATUS_END: |
07245ac2 | 617 | case BT_GRAPH_STATUS_NOMEM: |
d94d92ac | 618 | status = (int) graph_status; |
07245ac2 PP |
619 | break; |
620 | case BT_GRAPH_STATUS_OK: | |
d6e69534 | 621 | status = BT_MESSAGE_ITERATOR_STATUS_OK; |
d4393e08 PP |
622 | |
623 | /* | |
d6e69534 | 624 | * On success, the colander sink moves the messages |
d4393e08 | 625 | * to this iterator's array and sets this iterator's |
d6e69534 | 626 | * message count: move them to the user. |
d4393e08 | 627 | */ |
d6e69534 | 628 | *msgs_to_user = (void *) iterator->base.msgs->pdata; |
d94d92ac | 629 | *count_to_user = iterator->count; |
90157d89 | 630 | break; |
90157d89 | 631 | default: |
07245ac2 | 632 | /* Other errors */ |
d6e69534 | 633 | status = BT_MESSAGE_ITERATOR_STATUS_ERROR; |
90157d89 | 634 | } |
3230ee6b | 635 | |
3230ee6b | 636 | return status; |
53d45b87 JG |
637 | } |
638 | ||
7474e7d3 PP |
639 | struct bt_component * |
640 | bt_self_component_port_input_message_iterator_borrow_component( | |
d6e69534 | 641 | struct bt_self_component_port_input_message_iterator *iterator) |
d94d92ac | 642 | { |
d6e69534 | 643 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac PP |
644 | return iterator->upstream_component; |
645 | } | |
646 | ||
7474e7d3 PP |
647 | const struct bt_component * |
648 | bt_self_component_port_input_message_iterator_borrow_component_const( | |
649 | const struct bt_self_component_port_input_message_iterator *iterator) | |
650 | { | |
651 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
652 | return iterator->upstream_component; | |
653 | } | |
654 | ||
d6e69534 PP |
655 | struct bt_self_component *bt_self_message_iterator_borrow_component( |
656 | struct bt_self_message_iterator *self_iterator) | |
413bc2c4 | 657 | { |
d6e69534 | 658 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac | 659 | (void *) self_iterator; |
90157d89 | 660 | |
d6e69534 | 661 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac | 662 | return (void *) iterator->upstream_component; |
413bc2c4 JG |
663 | } |
664 | ||
d6e69534 PP |
665 | struct bt_self_port_output *bt_self_message_iterator_borrow_port( |
666 | struct bt_self_message_iterator *self_iterator) | |
91457551 | 667 | { |
d6e69534 | 668 | struct bt_self_component_port_input_message_iterator *iterator = |
d94d92ac PP |
669 | (void *) self_iterator; |
670 | ||
d6e69534 | 671 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); |
d94d92ac | 672 | return (void *) iterator->upstream_port; |
91457551 | 673 | } |
8ed535b5 PP |
674 | |
675 | static | |
d6e69534 | 676 | void bt_port_output_message_iterator_destroy(struct bt_object *obj) |
8ed535b5 | 677 | { |
d6e69534 | 678 | struct bt_port_output_message_iterator *iterator = (void *) obj; |
8ed535b5 | 679 | |
d6e69534 | 680 | BT_LIB_LOGD("Destroying output port message iterator object: %!+i", |
8ed535b5 PP |
681 | iterator); |
682 | BT_LOGD_STR("Putting graph."); | |
d94d92ac | 683 | BT_OBJECT_PUT_REF_AND_RESET(iterator->graph); |
8ed535b5 | 684 | BT_LOGD_STR("Putting colander sink component."); |
d94d92ac | 685 | BT_OBJECT_PUT_REF_AND_RESET(iterator->colander); |
d6e69534 | 686 | destroy_base_message_iterator(obj); |
8ed535b5 PP |
687 | } |
688 | ||
d6e69534 | 689 | struct bt_port_output_message_iterator * |
7474e7d3 | 690 | bt_port_output_message_iterator_create(struct bt_graph *graph, |
0d72b8c3 | 691 | const struct bt_port_output *output_port) |
8ed535b5 | 692 | { |
d6e69534 | 693 | struct bt_port_output_message_iterator *iterator = NULL; |
d94d92ac | 694 | struct bt_component_class_sink *colander_comp_cls = NULL; |
8ed535b5 | 695 | struct bt_component *output_port_comp = NULL; |
d94d92ac | 696 | struct bt_component_sink *colander_comp; |
8ed535b5 | 697 | enum bt_graph_status graph_status; |
d94d92ac | 698 | struct bt_port_input *colander_in_port = NULL; |
8ed535b5 | 699 | struct bt_component_class_sink_colander_data colander_data; |
d4393e08 | 700 | int ret; |
8ed535b5 | 701 | |
d94d92ac | 702 | BT_ASSERT_PRE_NON_NULL(graph, "Graph"); |
f42867e2 | 703 | BT_ASSERT_PRE_NON_NULL(output_port, "Output port"); |
0d72b8c3 PP |
704 | output_port_comp = bt_port_borrow_component_inline( |
705 | (const void *) output_port); | |
f42867e2 PP |
706 | BT_ASSERT_PRE(output_port_comp, |
707 | "Output port has no component: %!+p", output_port); | |
d94d92ac PP |
708 | BT_ASSERT_PRE(bt_component_borrow_graph(output_port_comp) == |
709 | (void *) graph, | |
710 | "Output port is not part of graph: %![graph-]+g, %![port-]+p", | |
711 | graph, output_port); | |
2bcba397 PP |
712 | BT_ASSERT_PRE(!graph->has_sink, |
713 | "Graph already has a sink component: %![graph-]+g"); | |
8ed535b5 | 714 | |
d6e69534 PP |
715 | /* Create message iterator */ |
716 | BT_LIB_LOGD("Creating message iterator on output port: " | |
d94d92ac | 717 | "%![port-]+p, %![comp-]+c", output_port, output_port_comp); |
d6e69534 | 718 | iterator = g_new0(struct bt_port_output_message_iterator, 1); |
8ed535b5 | 719 | if (!iterator) { |
d6e69534 | 720 | BT_LOGE_STR("Failed to allocate one output port message iterator."); |
8ed535b5 PP |
721 | goto error; |
722 | } | |
723 | ||
d6e69534 PP |
724 | ret = init_message_iterator((void *) iterator, |
725 | BT_MESSAGE_ITERATOR_TYPE_PORT_OUTPUT, | |
726 | bt_port_output_message_iterator_destroy); | |
d4393e08 | 727 | if (ret) { |
d6e69534 | 728 | /* init_message_iterator() logs errors */ |
65300d60 | 729 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
d4393e08 PP |
730 | goto end; |
731 | } | |
8ed535b5 PP |
732 | |
733 | /* Create colander component */ | |
734 | colander_comp_cls = bt_component_class_sink_colander_get(); | |
735 | if (!colander_comp_cls) { | |
736 | BT_LOGW("Cannot get colander sink component class."); | |
737 | goto error; | |
738 | } | |
739 | ||
398454ed PP |
740 | iterator->graph = graph; |
741 | bt_object_get_no_null_check(iterator->graph); | |
d6e69534 | 742 | colander_data.msgs = (void *) iterator->base.msgs->pdata; |
d4393e08 | 743 | colander_data.count_addr = &iterator->count; |
5fd91d88 PP |
744 | |
745 | /* Hope that nobody uses this very unique name */ | |
d94d92ac | 746 | graph_status = |
0d72b8c3 | 747 | bt_graph_add_sink_component_with_init_method_data( |
5fd91d88 PP |
748 | (void *) graph, colander_comp_cls, |
749 | "colander-36ac3409-b1a8-4d60-ab1f-4fdf341a8fb1", | |
0d72b8c3 | 750 | NULL, &colander_data, (void *) &iterator->colander); |
8ed535b5 | 751 | if (graph_status != BT_GRAPH_STATUS_OK) { |
d94d92ac PP |
752 | BT_LIB_LOGW("Cannot add colander sink component to graph: " |
753 | "%1[graph-]+g, status=%s", graph, | |
8ed535b5 PP |
754 | bt_graph_status_string(graph_status)); |
755 | goto error; | |
756 | } | |
757 | ||
758 | /* | |
759 | * Connect provided output port to the colander component's | |
760 | * input port. | |
761 | */ | |
0d72b8c3 PP |
762 | colander_in_port = |
763 | (void *) bt_component_sink_borrow_input_port_by_index_const( | |
764 | (void *) iterator->colander, 0); | |
f6ccaed9 | 765 | BT_ASSERT(colander_in_port); |
0d72b8c3 | 766 | graph_status = bt_graph_connect_ports(graph, |
8ed535b5 PP |
767 | output_port, colander_in_port, NULL); |
768 | if (graph_status != BT_GRAPH_STATUS_OK) { | |
d94d92ac PP |
769 | BT_LIB_LOGW("Cannot add colander sink component to graph: " |
770 | "%![graph-]+g, %![comp-]+c, status=%s", graph, | |
771 | iterator->colander, | |
8ed535b5 PP |
772 | bt_graph_status_string(graph_status)); |
773 | goto error; | |
774 | } | |
775 | ||
776 | /* | |
777 | * At this point everything went fine. Make the graph | |
d6e69534 | 778 | * nonconsumable forever so that only this message iterator |
8ed535b5 | 779 | * can consume (thanks to bt_graph_consume_sink_no_check()). |
d6e69534 PP |
780 | * This avoids leaking the message created by the colander |
781 | * sink and moved to the message iterator's message | |
07245ac2 | 782 | * member. |
8ed535b5 | 783 | */ |
d94d92ac | 784 | bt_graph_set_can_consume(iterator->graph, false); |
5badd463 | 785 | |
36d1acad SM |
786 | /* Also set the graph as being configured. */ |
787 | graph_status = bt_graph_configure(graph); | |
788 | if (graph_status != BT_GRAPH_STATUS_OK) { | |
789 | BT_LIB_LOGW("Cannot configure graph after having added colander: " | |
790 | "%![graph-]+g, status=%s", graph, | |
791 | bt_graph_status_string(graph_status)); | |
792 | goto error; | |
793 | } | |
8ed535b5 PP |
794 | goto end; |
795 | ||
796 | error: | |
797 | if (iterator && iterator->graph && iterator->colander) { | |
798 | int ret; | |
799 | ||
800 | /* Remove created colander component from graph if any */ | |
801 | colander_comp = iterator->colander; | |
65300d60 | 802 | BT_OBJECT_PUT_REF_AND_RESET(iterator->colander); |
8ed535b5 PP |
803 | |
804 | /* | |
805 | * At this point the colander component's reference | |
806 | * count is 0 because iterator->colander was the only | |
807 | * owner. We also know that it is not connected because | |
808 | * this is the last operation before this function | |
809 | * succeeds. | |
810 | * | |
811 | * Since we honor the preconditions here, | |
812 | * bt_graph_remove_unconnected_component() always | |
813 | * succeeds. | |
814 | */ | |
815 | ret = bt_graph_remove_unconnected_component(iterator->graph, | |
d94d92ac | 816 | (void *) colander_comp); |
f6ccaed9 | 817 | BT_ASSERT(ret == 0); |
8ed535b5 PP |
818 | } |
819 | ||
65300d60 | 820 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
8ed535b5 PP |
821 | |
822 | end: | |
65300d60 | 823 | bt_object_put_ref(colander_comp_cls); |
8ed535b5 PP |
824 | return (void *) iterator; |
825 | } | |
c5b9b441 | 826 | |
7474e7d3 PP |
827 | bt_bool bt_self_component_port_input_message_iterator_can_seek_ns_from_origin( |
828 | struct bt_self_component_port_input_message_iterator *iterator, | |
829 | int64_t ns_from_origin) | |
830 | { | |
831 | bt_bool can = BT_FALSE; | |
832 | ||
833 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
834 | BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator); | |
5badd463 PP |
835 | BT_ASSERT_PRE( |
836 | bt_component_borrow_graph(iterator->upstream_component)->config_state != | |
837 | BT_GRAPH_CONFIGURATION_STATE_CONFIGURING, | |
7474e7d3 PP |
838 | "Graph is not configured: %!+g", |
839 | bt_component_borrow_graph(iterator->upstream_component)); | |
840 | ||
841 | if (iterator->methods.can_seek_ns_from_origin) { | |
842 | can = iterator->methods.can_seek_ns_from_origin(iterator, | |
843 | ns_from_origin); | |
844 | goto end; | |
845 | } | |
846 | ||
847 | /* | |
848 | * Automatic seeking fall back: if we can seek to the beginning, | |
849 | * then we can automatically seek to any message. | |
850 | */ | |
851 | if (iterator->methods.can_seek_beginning) { | |
852 | can = iterator->methods.can_seek_beginning(iterator); | |
853 | } | |
854 | ||
855 | end: | |
856 | return can; | |
857 | } | |
858 | ||
859 | bt_bool bt_self_component_port_input_message_iterator_can_seek_beginning( | |
860 | struct bt_self_component_port_input_message_iterator *iterator) | |
861 | { | |
862 | bt_bool can = BT_FALSE; | |
863 | ||
864 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
865 | BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator); | |
5badd463 PP |
866 | BT_ASSERT_PRE( |
867 | bt_component_borrow_graph(iterator->upstream_component)->config_state != | |
868 | BT_GRAPH_CONFIGURATION_STATE_CONFIGURING, | |
7474e7d3 PP |
869 | "Graph is not configured: %!+g", |
870 | bt_component_borrow_graph(iterator->upstream_component)); | |
871 | ||
872 | if (iterator->methods.can_seek_beginning) { | |
873 | can = iterator->methods.can_seek_beginning(iterator); | |
874 | } | |
875 | ||
876 | return can; | |
877 | } | |
878 | ||
879 | static inline | |
003e713f | 880 | void set_iterator_state_after_seeking( |
7474e7d3 PP |
881 | struct bt_self_component_port_input_message_iterator *iterator, |
882 | enum bt_message_iterator_status status) | |
883 | { | |
884 | enum bt_self_component_port_input_message_iterator_state new_state = 0; | |
885 | ||
886 | /* Set iterator's state depending on seeking status */ | |
887 | switch (status) { | |
888 | case BT_MESSAGE_ITERATOR_STATUS_OK: | |
889 | new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE; | |
890 | break; | |
891 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: | |
892 | new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_AGAIN; | |
893 | break; | |
894 | case BT_MESSAGE_ITERATOR_STATUS_ERROR: | |
895 | case BT_MESSAGE_ITERATOR_STATUS_NOMEM: | |
896 | new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_LAST_SEEKING_RETURNED_ERROR; | |
897 | break; | |
898 | case BT_MESSAGE_ITERATOR_STATUS_END: | |
899 | new_state = BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ENDED; | |
900 | break; | |
901 | default: | |
902 | abort(); | |
903 | } | |
904 | ||
905 | set_self_comp_port_input_msg_iterator_state(iterator, new_state); | |
906 | } | |
907 | ||
7474e7d3 PP |
908 | enum bt_message_iterator_status |
909 | bt_self_component_port_input_message_iterator_seek_beginning( | |
910 | struct bt_self_component_port_input_message_iterator *iterator) | |
911 | { | |
912 | int status; | |
913 | ||
914 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
915 | BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator); | |
5badd463 PP |
916 | BT_ASSERT_PRE( |
917 | bt_component_borrow_graph(iterator->upstream_component)->config_state != | |
918 | BT_GRAPH_CONFIGURATION_STATE_CONFIGURING, | |
7474e7d3 PP |
919 | "Graph is not configured: %!+g", |
920 | bt_component_borrow_graph(iterator->upstream_component)); | |
921 | BT_ASSERT_PRE( | |
922 | bt_self_component_port_input_message_iterator_can_seek_beginning( | |
923 | iterator), | |
924 | "Message iterator cannot seek beginning: %!+i", iterator); | |
925 | BT_LIB_LOGD("Calling user's \"seek beginning\" method: %!+i", iterator); | |
926 | set_self_comp_port_input_msg_iterator_state(iterator, | |
927 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING); | |
928 | status = iterator->methods.seek_beginning(iterator); | |
929 | BT_LOGD("User method returned: status=%s", | |
930 | bt_message_iterator_status_string(status)); | |
931 | BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK || | |
932 | status == BT_MESSAGE_ITERATOR_STATUS_ERROR || | |
933 | status == BT_MESSAGE_ITERATOR_STATUS_NOMEM || | |
934 | status == BT_MESSAGE_ITERATOR_STATUS_AGAIN, | |
935 | "Unexpected status: %![iter-]+i, status=%s", | |
bd1a54fe | 936 | iterator, bt_common_self_message_iterator_status_string(status)); |
7474e7d3 PP |
937 | set_iterator_state_after_seeking(iterator, status); |
938 | return status; | |
939 | } | |
940 | ||
941 | static inline | |
5b9e151d PP |
942 | enum bt_message_iterator_status auto_seek_handle_message( |
943 | struct bt_self_component_port_input_message_iterator *iterator, | |
944 | int64_t ns_from_origin, const struct bt_message *msg, | |
945 | bool *got_first) | |
7474e7d3 | 946 | { |
5b9e151d PP |
947 | enum bt_message_iterator_status status = BT_MESSAGE_ITERATOR_STATUS_OK; |
948 | int64_t msg_ns_from_origin; | |
7474e7d3 | 949 | const struct bt_clock_snapshot *clk_snapshot = NULL; |
5b9e151d PP |
950 | int ret; |
951 | ||
952 | BT_ASSERT(msg); | |
953 | BT_ASSERT(got_first); | |
7474e7d3 PP |
954 | |
955 | switch (msg->type) { | |
956 | case BT_MESSAGE_TYPE_EVENT: | |
957 | { | |
958 | const struct bt_message_event *event_msg = | |
959 | (const void *) msg; | |
960 | ||
2c091c04 | 961 | clk_snapshot = event_msg->default_cs; |
7474e7d3 | 962 | BT_ASSERT_PRE(clk_snapshot, |
c7072d5a PP |
963 | "Event message has no default clock snapshot: %!+n", |
964 | event_msg); | |
7474e7d3 PP |
965 | break; |
966 | } | |
b9fd9cbb | 967 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: |
7474e7d3 | 968 | { |
b9fd9cbb | 969 | const struct bt_message_message_iterator_inactivity *inactivity_msg = |
7474e7d3 PP |
970 | (const void *) msg; |
971 | ||
7474e7d3 | 972 | clk_snapshot = inactivity_msg->default_cs; |
16663a5e | 973 | BT_ASSERT(clk_snapshot); |
7474e7d3 PP |
974 | break; |
975 | } | |
16663a5e PP |
976 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: |
977 | case BT_MESSAGE_TYPE_PACKET_END: | |
c7072d5a PP |
978 | { |
979 | const struct bt_message_packet *packet_msg = | |
980 | (const void *) msg; | |
981 | ||
982 | clk_snapshot = packet_msg->default_cs; | |
983 | BT_ASSERT_PRE(clk_snapshot, | |
984 | "Packet message has no default clock snapshot: %!+n", | |
985 | packet_msg); | |
986 | break; | |
987 | } | |
16663a5e PP |
988 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: |
989 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: | |
7474e7d3 | 990 | { |
5b9e151d PP |
991 | struct bt_message_discarded_items *msg_disc_items = |
992 | (void *) msg; | |
993 | ||
994 | BT_ASSERT_PRE(msg_disc_items->default_begin_cs && | |
995 | msg_disc_items->default_end_cs, | |
996 | "Discarded events/packets message has no default clock snapshots: %!+n", | |
997 | msg_disc_items); | |
998 | ret = bt_clock_snapshot_get_ns_from_origin( | |
999 | msg_disc_items->default_begin_cs, | |
1000 | &msg_ns_from_origin); | |
1001 | if (ret) { | |
1002 | status = BT_MESSAGE_ITERATOR_STATUS_ERROR; | |
1003 | goto end; | |
1004 | } | |
7474e7d3 | 1005 | |
5b9e151d PP |
1006 | if (msg_ns_from_origin >= ns_from_origin) { |
1007 | *got_first = true; | |
1008 | goto push_msg; | |
1009 | } | |
1010 | ||
1011 | ret = bt_clock_snapshot_get_ns_from_origin( | |
1012 | msg_disc_items->default_end_cs, | |
1013 | &msg_ns_from_origin); | |
1014 | if (ret) { | |
1015 | status = BT_MESSAGE_ITERATOR_STATUS_ERROR; | |
1016 | goto end; | |
1017 | } | |
1018 | ||
1019 | if (msg_ns_from_origin >= ns_from_origin) { | |
1020 | /* | |
1021 | * The discarded items message's beginning time | |
1022 | * is before the requested seeking time, but its | |
1023 | * end time is after. Modify the message so as | |
1024 | * to set its beginning time to the requested | |
1025 | * seeking time, and make its item count unknown | |
1026 | * as we don't know if items were really | |
1027 | * discarded within the new time range. | |
1028 | */ | |
1029 | uint64_t new_begin_raw_value; | |
1030 | ||
1031 | ret = bt_clock_class_clock_value_from_ns_from_origin( | |
1032 | msg_disc_items->default_end_cs->clock_class, | |
1033 | ns_from_origin, &new_begin_raw_value); | |
1034 | if (ret) { | |
1035 | status = BT_MESSAGE_ITERATOR_STATUS_ERROR; | |
1036 | goto end; | |
1037 | } | |
1038 | ||
1039 | bt_clock_snapshot_set_raw_value( | |
1040 | msg_disc_items->default_begin_cs, | |
1041 | new_begin_raw_value); | |
1042 | msg_disc_items->count.base.avail = | |
1043 | BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE; | |
1044 | ||
1045 | /* | |
1046 | * It is safe to push it because its beginning | |
1047 | * time is exactly the requested seeking time. | |
1048 | */ | |
1049 | goto push_msg; | |
1050 | } else { | |
1051 | goto skip_msg; | |
1052 | } | |
7474e7d3 | 1053 | } |
16663a5e | 1054 | case BT_MESSAGE_TYPE_STREAM_ACTIVITY_BEGINNING: |
7474e7d3 | 1055 | { |
16663a5e | 1056 | const struct bt_message_stream_activity *stream_act_msg = |
7474e7d3 PP |
1057 | (const void *) msg; |
1058 | ||
16663a5e PP |
1059 | switch (stream_act_msg->default_cs_state) { |
1060 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_UNKNOWN: | |
1061 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_INFINITE: | |
1062 | /* | |
1063 | * -inf is always less than any requested time, | |
1064 | * and we can't assume any specific time for an | |
1065 | * unknown clock snapshot, so skip this. | |
1066 | */ | |
5b9e151d | 1067 | goto skip_msg; |
16663a5e PP |
1068 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_KNOWN: |
1069 | clk_snapshot = stream_act_msg->default_cs; | |
1070 | BT_ASSERT(clk_snapshot); | |
1071 | break; | |
1072 | default: | |
1073 | abort(); | |
1074 | } | |
1075 | ||
7474e7d3 PP |
1076 | break; |
1077 | } | |
16663a5e PP |
1078 | case BT_MESSAGE_TYPE_STREAM_ACTIVITY_END: |
1079 | { | |
1080 | const struct bt_message_stream_activity *stream_act_msg = | |
1081 | (const void *) msg; | |
1082 | ||
1083 | switch (stream_act_msg->default_cs_state) { | |
1084 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_UNKNOWN: | |
1085 | /* | |
1086 | * We can't assume any specific time for an | |
1087 | * unknown clock snapshot, so skip this. | |
1088 | */ | |
5b9e151d | 1089 | goto skip_msg; |
16663a5e PP |
1090 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_INFINITE: |
1091 | /* | |
1092 | * +inf is always greater than any requested | |
1093 | * time. | |
1094 | */ | |
5b9e151d PP |
1095 | *got_first = true; |
1096 | goto push_msg; | |
16663a5e PP |
1097 | case BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_KNOWN: |
1098 | clk_snapshot = stream_act_msg->default_cs; | |
1099 | BT_ASSERT(clk_snapshot); | |
1100 | break; | |
1101 | default: | |
1102 | abort(); | |
1103 | } | |
1104 | ||
1105 | break; | |
1106 | } | |
1107 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: | |
1108 | case BT_MESSAGE_TYPE_STREAM_END: | |
1109 | /* Ignore */ | |
5b9e151d | 1110 | goto skip_msg; |
7474e7d3 PP |
1111 | default: |
1112 | abort(); | |
1113 | } | |
1114 | ||
5b9e151d PP |
1115 | BT_ASSERT(clk_snapshot); |
1116 | ret = bt_clock_snapshot_get_ns_from_origin(clk_snapshot, | |
1117 | &msg_ns_from_origin); | |
1118 | if (ret) { | |
1119 | status = BT_MESSAGE_ITERATOR_STATUS_ERROR; | |
7474e7d3 PP |
1120 | goto end; |
1121 | } | |
1122 | ||
5b9e151d PP |
1123 | if (msg_ns_from_origin >= ns_from_origin) { |
1124 | *got_first = true; | |
1125 | goto push_msg; | |
1126 | } | |
1127 | ||
1128 | skip_msg: | |
1129 | bt_object_put_no_null_check(msg); | |
04c0cec6 | 1130 | msg = NULL; |
5b9e151d PP |
1131 | goto end; |
1132 | ||
1133 | push_msg: | |
1134 | g_queue_push_head(iterator->auto_seek_msgs, (void *) msg); | |
1135 | msg = NULL; | |
7474e7d3 PP |
1136 | |
1137 | end: | |
5b9e151d PP |
1138 | BT_ASSERT(!msg || status != BT_MESSAGE_ITERATOR_STATUS_OK); |
1139 | return status; | |
7474e7d3 PP |
1140 | } |
1141 | ||
1142 | static | |
1143 | enum bt_message_iterator_status find_message_ge_ns_from_origin( | |
1144 | struct bt_self_component_port_input_message_iterator *iterator, | |
1145 | int64_t ns_from_origin) | |
1146 | { | |
1147 | int status; | |
1148 | enum bt_self_component_port_input_message_iterator_state init_state = | |
1149 | iterator->state; | |
1150 | const struct bt_message *messages[MSG_BATCH_SIZE]; | |
1151 | uint64_t user_count = 0; | |
1152 | uint64_t i; | |
5b9e151d | 1153 | bool got_first = false; |
7474e7d3 PP |
1154 | |
1155 | BT_ASSERT(iterator); | |
1156 | memset(&messages[0], 0, sizeof(messages[0]) * MSG_BATCH_SIZE); | |
1157 | ||
1158 | /* | |
1159 | * Make this iterator temporarily active (not seeking) to call | |
1160 | * the "next" method. | |
1161 | */ | |
1162 | set_self_comp_port_input_msg_iterator_state(iterator, | |
1163 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE); | |
1164 | ||
1165 | BT_ASSERT(iterator->methods.next); | |
1166 | ||
e0dade92 | 1167 | while (!got_first) { |
7474e7d3 PP |
1168 | /* |
1169 | * Call the user's "next" method to get the next | |
1170 | * messages and status. | |
1171 | */ | |
1172 | BT_LOGD_STR("Calling user's \"next\" method."); | |
1173 | status = iterator->methods.next(iterator, | |
1174 | &messages[0], MSG_BATCH_SIZE, &user_count); | |
1175 | BT_LOGD("User method returned: status=%s", | |
1176 | bt_message_iterator_status_string(status)); | |
1177 | ||
7474e7d3 PP |
1178 | /* |
1179 | * The user's "next" method must not do any action which | |
1180 | * would change the iterator's state. | |
1181 | */ | |
1182 | BT_ASSERT(iterator->state == | |
1183 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_ACTIVE); | |
7474e7d3 PP |
1184 | |
1185 | switch (status) { | |
1186 | case BT_MESSAGE_ITERATOR_STATUS_OK: | |
1187 | BT_ASSERT_PRE(user_count <= MSG_BATCH_SIZE, | |
1188 | "Invalid returned message count: greater than " | |
1189 | "batch size: count=%" PRIu64 ", batch-size=%u", | |
1190 | user_count, MSG_BATCH_SIZE); | |
1191 | break; | |
1192 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: | |
1193 | case BT_MESSAGE_ITERATOR_STATUS_ERROR: | |
1194 | case BT_MESSAGE_ITERATOR_STATUS_NOMEM: | |
1195 | case BT_MESSAGE_ITERATOR_STATUS_END: | |
1196 | goto end; | |
1197 | default: | |
1198 | abort(); | |
1199 | } | |
1200 | ||
7474e7d3 | 1201 | for (i = 0; i < user_count; i++) { |
5b9e151d PP |
1202 | if (got_first) { |
1203 | g_queue_push_head(iterator->auto_seek_msgs, | |
1204 | (void *) messages[i]); | |
1205 | messages[i] = NULL; | |
7474e7d3 PP |
1206 | continue; |
1207 | } | |
1208 | ||
5b9e151d PP |
1209 | status = auto_seek_handle_message(iterator, |
1210 | ns_from_origin, messages[i], &got_first); | |
1211 | if (status == BT_MESSAGE_ITERATOR_STATUS_OK) { | |
e0dade92 | 1212 | /* Message was either pushed or moved */ |
5b9e151d PP |
1213 | messages[i] = NULL; |
1214 | } else { | |
7474e7d3 PP |
1215 | goto end; |
1216 | } | |
7474e7d3 PP |
1217 | } |
1218 | } | |
1219 | ||
1220 | end: | |
1221 | for (i = 0; i < user_count; i++) { | |
1222 | if (messages[i]) { | |
1223 | bt_object_put_no_null_check(messages[i]); | |
1224 | } | |
1225 | } | |
1226 | ||
1227 | set_self_comp_port_input_msg_iterator_state(iterator, init_state); | |
1228 | return status; | |
1229 | } | |
1230 | ||
1231 | static | |
1232 | enum bt_self_message_iterator_status post_auto_seek_next( | |
1233 | struct bt_self_component_port_input_message_iterator *iterator, | |
1234 | bt_message_array_const msgs, uint64_t capacity, | |
1235 | uint64_t *count) | |
1236 | { | |
5b9e151d PP |
1237 | BT_ASSERT(!g_queue_is_empty(iterator->auto_seek_msgs)); |
1238 | *count = 0; | |
7474e7d3 PP |
1239 | |
1240 | /* | |
1241 | * Move auto-seek messages to the output array (which is this | |
5b9e151d | 1242 | * iterator's base message array). |
7474e7d3 | 1243 | */ |
5b9e151d PP |
1244 | while (capacity > 0 && !g_queue_is_empty(iterator->auto_seek_msgs)) { |
1245 | msgs[*count] = g_queue_pop_tail(iterator->auto_seek_msgs); | |
1246 | capacity--; | |
1247 | (*count)++; | |
7474e7d3 | 1248 | } |
7474e7d3 | 1249 | |
5b9e151d PP |
1250 | BT_ASSERT(*count > 0); |
1251 | ||
1252 | if (g_queue_is_empty(iterator->auto_seek_msgs)) { | |
1253 | /* No more auto-seek messages */ | |
1254 | switch (iterator->upstream_component->class->type) { | |
1255 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
1256 | { | |
1257 | struct bt_component_class_source *src_comp_cls = | |
1258 | (void *) iterator->upstream_component->class; | |
1259 | ||
1260 | iterator->methods.next = | |
1261 | (bt_self_component_port_input_message_iterator_next_method) | |
1262 | src_comp_cls->methods.msg_iter_next; | |
1263 | break; | |
1264 | } | |
1265 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
1266 | { | |
1267 | struct bt_component_class_filter *flt_comp_cls = | |
1268 | (void *) iterator->upstream_component->class; | |
1269 | ||
1270 | iterator->methods.next = | |
1271 | (bt_self_component_port_input_message_iterator_next_method) | |
1272 | flt_comp_cls->methods.msg_iter_next; | |
1273 | break; | |
1274 | } | |
1275 | default: | |
1276 | abort(); | |
1277 | } | |
7474e7d3 PP |
1278 | } |
1279 | ||
1280 | return BT_SELF_MESSAGE_ITERATOR_STATUS_OK; | |
1281 | } | |
1282 | ||
1283 | enum bt_message_iterator_status | |
1284 | bt_self_component_port_input_message_iterator_seek_ns_from_origin( | |
1285 | struct bt_self_component_port_input_message_iterator *iterator, | |
1286 | int64_t ns_from_origin) | |
1287 | { | |
1288 | int status; | |
1289 | ||
1290 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
1291 | BT_ASSERT_PRE_ITER_HAS_STATE_TO_SEEK(iterator); | |
5badd463 PP |
1292 | BT_ASSERT_PRE( |
1293 | bt_component_borrow_graph(iterator->upstream_component)->config_state != | |
1294 | BT_GRAPH_CONFIGURATION_STATE_CONFIGURING, | |
7474e7d3 PP |
1295 | "Graph is not configured: %!+g", |
1296 | bt_component_borrow_graph(iterator->upstream_component)); | |
1297 | BT_ASSERT_PRE( | |
1298 | bt_self_component_port_input_message_iterator_can_seek_ns_from_origin( | |
1299 | iterator, ns_from_origin), | |
1300 | "Message iterator cannot seek nanoseconds from origin: %!+i, " | |
1301 | "ns-from-origin=%" PRId64, iterator, ns_from_origin); | |
1302 | set_self_comp_port_input_msg_iterator_state(iterator, | |
1303 | BT_SELF_COMPONENT_PORT_INPUT_MESSAGE_ITERATOR_STATE_SEEKING); | |
1304 | ||
1305 | if (iterator->methods.seek_ns_from_origin) { | |
1306 | BT_LIB_LOGD("Calling user's \"seek nanoseconds from origin\" method: " | |
1307 | "%![iter-]+i, ns=%" PRId64, iterator, ns_from_origin); | |
1308 | status = iterator->methods.seek_ns_from_origin(iterator, | |
1309 | ns_from_origin); | |
1310 | BT_LOGD("User method returned: status=%s", | |
1311 | bt_message_iterator_status_string(status)); | |
1312 | BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK || | |
1313 | status == BT_MESSAGE_ITERATOR_STATUS_ERROR || | |
1314 | status == BT_MESSAGE_ITERATOR_STATUS_NOMEM || | |
1315 | status == BT_MESSAGE_ITERATOR_STATUS_AGAIN, | |
1316 | "Unexpected status: %![iter-]+i, status=%s", | |
1317 | iterator, | |
bd1a54fe | 1318 | bt_common_self_message_iterator_status_string(status)); |
7474e7d3 PP |
1319 | } else { |
1320 | /* Start automatic seeking: seek beginning first */ | |
1321 | BT_ASSERT(iterator->methods.can_seek_beginning(iterator)); | |
1322 | BT_ASSERT(iterator->methods.seek_beginning); | |
1323 | BT_LIB_LOGD("Calling user's \"seek beginning\" method: %!+i", | |
1324 | iterator); | |
1325 | status = iterator->methods.seek_beginning(iterator); | |
1326 | BT_LOGD("User method returned: status=%s", | |
1327 | bt_message_iterator_status_string(status)); | |
1328 | BT_ASSERT_PRE(status == BT_MESSAGE_ITERATOR_STATUS_OK || | |
1329 | status == BT_MESSAGE_ITERATOR_STATUS_ERROR || | |
1330 | status == BT_MESSAGE_ITERATOR_STATUS_NOMEM || | |
1331 | status == BT_MESSAGE_ITERATOR_STATUS_AGAIN, | |
1332 | "Unexpected status: %![iter-]+i, status=%s", | |
1333 | iterator, | |
bd1a54fe | 1334 | bt_common_self_message_iterator_status_string(status)); |
7474e7d3 PP |
1335 | switch (status) { |
1336 | case BT_MESSAGE_ITERATOR_STATUS_OK: | |
1337 | break; | |
1338 | case BT_MESSAGE_ITERATOR_STATUS_ERROR: | |
1339 | case BT_MESSAGE_ITERATOR_STATUS_NOMEM: | |
1340 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: | |
1341 | goto end; | |
1342 | default: | |
1343 | abort(); | |
1344 | } | |
1345 | ||
1346 | /* | |
1347 | * Find the first message which has a default clock | |
1348 | * snapshot greater than or equal to the requested | |
5b9e151d PP |
1349 | * seeking time, and move the received messages from |
1350 | * this point in the batch to this iterator's auto-seek | |
1351 | * message queue. | |
7474e7d3 | 1352 | */ |
5b9e151d PP |
1353 | while (!g_queue_is_empty(iterator->auto_seek_msgs)) { |
1354 | bt_object_put_no_null_check( | |
1355 | g_queue_pop_tail(iterator->auto_seek_msgs)); | |
1356 | } | |
1357 | ||
7474e7d3 PP |
1358 | status = find_message_ge_ns_from_origin(iterator, |
1359 | ns_from_origin); | |
1360 | switch (status) { | |
1361 | case BT_MESSAGE_ITERATOR_STATUS_OK: | |
5b9e151d | 1362 | case BT_MESSAGE_ITERATOR_STATUS_END: |
7474e7d3 | 1363 | /* |
5b9e151d PP |
1364 | * If there are messages in the auto-seek |
1365 | * message queue, replace the user's "next" | |
1366 | * method with a custom, temporary "next" method | |
1367 | * which returns them. | |
7474e7d3 | 1368 | */ |
5b9e151d PP |
1369 | if (!g_queue_is_empty(iterator->auto_seek_msgs)) { |
1370 | iterator->methods.next = | |
1371 | (bt_self_component_port_input_message_iterator_next_method) | |
1372 | post_auto_seek_next; | |
1373 | } | |
1374 | ||
1375 | /* | |
1376 | * `BT_MESSAGE_ITERATOR_STATUS_END` becomes | |
1377 | * `BT_MESSAGE_ITERATOR_STATUS_OK`: the next | |
1378 | * time this iterator's "next" method is called, | |
1379 | * it will return | |
1380 | * `BT_MESSAGE_ITERATOR_STATUS_END`. | |
1381 | */ | |
1382 | status = BT_MESSAGE_ITERATOR_STATUS_OK; | |
7474e7d3 PP |
1383 | break; |
1384 | case BT_MESSAGE_ITERATOR_STATUS_ERROR: | |
1385 | case BT_MESSAGE_ITERATOR_STATUS_NOMEM: | |
1386 | case BT_MESSAGE_ITERATOR_STATUS_AGAIN: | |
1387 | goto end; | |
7474e7d3 PP |
1388 | default: |
1389 | abort(); | |
1390 | } | |
1391 | } | |
1392 | ||
1393 | end: | |
1394 | set_iterator_state_after_seeking(iterator, status); | |
7474e7d3 PP |
1395 | return status; |
1396 | } | |
1397 | ||
1398 | static inline | |
1399 | bt_self_component_port_input_message_iterator * | |
1400 | borrow_output_port_message_iterator_upstream_iterator( | |
1401 | struct bt_port_output_message_iterator *iterator) | |
1402 | { | |
1403 | struct bt_component_class_sink_colander_priv_data *colander_data; | |
1404 | ||
1405 | BT_ASSERT(iterator); | |
1406 | colander_data = (void *) iterator->colander->parent.user_data; | |
1407 | BT_ASSERT(colander_data); | |
1408 | BT_ASSERT(colander_data->msg_iter); | |
1409 | return colander_data->msg_iter; | |
1410 | } | |
1411 | ||
1412 | bt_bool bt_port_output_message_iterator_can_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_can_seek_ns_from_origin( | |
1418 | borrow_output_port_message_iterator_upstream_iterator( | |
1419 | iterator), ns_from_origin); | |
1420 | } | |
1421 | ||
1422 | bt_bool bt_port_output_message_iterator_can_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_can_seek_beginning( | |
1427 | borrow_output_port_message_iterator_upstream_iterator( | |
1428 | iterator)); | |
1429 | } | |
1430 | ||
1431 | enum bt_message_iterator_status bt_port_output_message_iterator_seek_ns_from_origin( | |
1432 | struct bt_port_output_message_iterator *iterator, | |
1433 | int64_t ns_from_origin) | |
1434 | { | |
1435 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
1436 | return bt_self_component_port_input_message_iterator_seek_ns_from_origin( | |
1437 | borrow_output_port_message_iterator_upstream_iterator(iterator), | |
1438 | ns_from_origin); | |
1439 | } | |
1440 | ||
1441 | enum bt_message_iterator_status bt_port_output_message_iterator_seek_beginning( | |
1442 | struct bt_port_output_message_iterator *iterator) | |
1443 | { | |
1444 | BT_ASSERT_PRE_NON_NULL(iterator, "Message iterator"); | |
1445 | return bt_self_component_port_input_message_iterator_seek_beginning( | |
1446 | borrow_output_port_message_iterator_upstream_iterator( | |
1447 | iterator)); | |
1448 | } | |
1449 | ||
d6e69534 PP |
1450 | void bt_port_output_message_iterator_get_ref( |
1451 | const struct bt_port_output_message_iterator *iterator) | |
c5b9b441 PP |
1452 | { |
1453 | bt_object_get_ref(iterator); | |
1454 | } | |
1455 | ||
d6e69534 PP |
1456 | void bt_port_output_message_iterator_put_ref( |
1457 | const struct bt_port_output_message_iterator *iterator) | |
c5b9b441 PP |
1458 | { |
1459 | bt_object_put_ref(iterator); | |
1460 | } | |
1461 | ||
d6e69534 PP |
1462 | void bt_self_component_port_input_message_iterator_get_ref( |
1463 | const struct bt_self_component_port_input_message_iterator *iterator) | |
c5b9b441 PP |
1464 | { |
1465 | bt_object_get_ref(iterator); | |
1466 | } | |
1467 | ||
d6e69534 PP |
1468 | void bt_self_component_port_input_message_iterator_put_ref( |
1469 | const struct bt_self_component_port_input_message_iterator *iterator) | |
c5b9b441 PP |
1470 | { |
1471 | bt_object_put_ref(iterator); | |
1472 | } |