Commit | Line | Data |
---|---|---|
d8866baa PP |
1 | /* |
2 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation | |
3 | * Copyright 2017 Philippe Proulx <jeremie.galarneau@efficios.com> | |
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 | ||
33ec5dfa PP |
24 | #define BT_LOG_TAG "PLUGIN-TEXT-DMESG-SRC" |
25 | #include "logging.h" | |
26 | ||
d8866baa | 27 | #include <stdbool.h> |
33ec5dfa PP |
28 | #include <string.h> |
29 | #include <ctype.h> | |
d8866baa | 30 | #include <stdio.h> |
f6ccaed9 | 31 | #include <babeltrace/assert-internal.h> |
351704a7 | 32 | #include <babeltrace/common-internal.h> |
33ec5dfa PP |
33 | #include <babeltrace/babeltrace.h> |
34 | #include <babeltrace/values-internal.h> | |
35 | #include <babeltrace/compat/utc-internal.h> | |
36 | #include <babeltrace/compat/stdio-internal.h> | |
d8866baa PP |
37 | #include <glib.h> |
38 | ||
33ec5dfa PP |
39 | #define NSEC_PER_USEC 1000UL |
40 | #define NSEC_PER_MSEC 1000000UL | |
41 | #define NSEC_PER_SEC 1000000000ULL | |
42 | #define USEC_PER_SEC 1000000UL | |
43 | ||
d8866baa PP |
44 | struct dmesg_component; |
45 | ||
46 | struct dmesg_notif_iter { | |
47 | struct dmesg_component *dmesg_comp; | |
f0010051 | 48 | struct bt_private_connection_private_notification_iterator *pc_notif_iter; /* Weak */ |
33ec5dfa PP |
49 | char *linebuf; |
50 | size_t linebuf_len; | |
d8866baa | 51 | FILE *fp; |
312c056a PP |
52 | struct bt_notification *tmp_event_notif; |
53 | ||
54 | enum { | |
55 | STATE_EMIT_STREAM_BEGINNING, | |
56 | STATE_EMIT_PACKET_BEGINNING, | |
57 | STATE_EMIT_EVENT, | |
58 | STATE_EMIT_PACKET_END, | |
59 | STATE_EMIT_STREAM_END, | |
60 | STATE_DONE, | |
61 | } state; | |
d8866baa PP |
62 | }; |
63 | ||
64 | struct dmesg_component { | |
65 | struct { | |
66 | GString *path; | |
33ec5dfa | 67 | bt_bool read_from_stdin; |
707b323a | 68 | bt_bool no_timestamp; |
d8866baa PP |
69 | } params; |
70 | ||
50842bdc PP |
71 | struct bt_trace *trace; |
72 | struct bt_stream_class *stream_class; | |
73 | struct bt_event_class *event_class; | |
74 | struct bt_stream *stream; | |
75 | struct bt_packet *packet; | |
76 | struct bt_clock_class *clock_class; | |
d8866baa PP |
77 | struct bt_clock_class_priority_map *cc_prio_map; |
78 | }; | |
79 | ||
33ec5dfa | 80 | static |
c82deff2 | 81 | struct bt_field_class *create_event_payload_fc(void) |
33ec5dfa | 82 | { |
c82deff2 PP |
83 | struct bt_field_class *root_fc = NULL; |
84 | struct bt_field_class *fc = NULL; | |
33ec5dfa PP |
85 | int ret; |
86 | ||
c82deff2 PP |
87 | root_fc = bt_field_class_structure_create(); |
88 | if (!root_fc) { | |
89 | BT_LOGE_STR("Cannot create an empty structure field class object."); | |
33ec5dfa PP |
90 | goto error; |
91 | } | |
92 | ||
c82deff2 PP |
93 | fc = bt_field_class_string_create(); |
94 | if (!fc) { | |
95 | BT_LOGE_STR("Cannot create a string field class object."); | |
33ec5dfa PP |
96 | goto error; |
97 | } | |
98 | ||
c82deff2 | 99 | ret = bt_field_class_structure_append_member(root_fc, "str", fc); |
33ec5dfa | 100 | if (ret) { |
c82deff2 | 101 | BT_LOGE("Cannot add `str` member to structure field class: " |
33ec5dfa PP |
102 | "ret=%d", ret); |
103 | goto error; | |
104 | } | |
105 | ||
106 | goto end; | |
107 | ||
108 | error: | |
e2317362 | 109 | BT_OBJECT_PUT_REF_AND_RESET(root_fc); |
33ec5dfa PP |
110 | |
111 | end: | |
e2317362 | 112 | bt_object_put_ref(fc); |
c82deff2 | 113 | return root_fc; |
33ec5dfa PP |
114 | } |
115 | ||
33ec5dfa PP |
116 | static |
117 | int create_meta(struct dmesg_component *dmesg_comp, bool has_ts) | |
118 | { | |
c82deff2 | 119 | struct bt_field_class *fc = NULL; |
33ec5dfa PP |
120 | const char *trace_name = NULL; |
121 | gchar *basename = NULL; | |
d8866baa PP |
122 | int ret = 0; |
123 | ||
50842bdc | 124 | dmesg_comp->trace = bt_trace_create(); |
33ec5dfa PP |
125 | if (!dmesg_comp->trace) { |
126 | BT_LOGE_STR("Cannot create an empty trace object."); | |
127 | goto error; | |
128 | } | |
129 | ||
33ec5dfa PP |
130 | if (dmesg_comp->params.read_from_stdin) { |
131 | trace_name = "STDIN"; | |
132 | } else { | |
133 | basename = g_path_get_basename(dmesg_comp->params.path->str); | |
f6ccaed9 | 134 | BT_ASSERT(basename); |
33ec5dfa PP |
135 | |
136 | if (strcmp(basename, G_DIR_SEPARATOR_S) != 0 && | |
137 | strcmp(basename, ".") != 0) { | |
138 | trace_name = basename; | |
139 | } | |
140 | } | |
141 | ||
142 | if (trace_name) { | |
50842bdc | 143 | ret = bt_trace_set_name(dmesg_comp->trace, trace_name); |
33ec5dfa PP |
144 | if (ret) { |
145 | BT_LOGE("Cannot set trace's name: name=\"%s\"", trace_name); | |
146 | goto error; | |
147 | } | |
148 | } | |
149 | ||
61f59358 | 150 | dmesg_comp->stream_class = bt_stream_class_create(dmesg_comp->trace); |
33ec5dfa | 151 | if (!dmesg_comp->stream_class) { |
61f59358 | 152 | BT_LOGE_STR("Cannot create a stream class object."); |
33ec5dfa PP |
153 | goto error; |
154 | } | |
155 | ||
33ec5dfa | 156 | if (has_ts) { |
61f59358 | 157 | dmesg_comp->clock_class = bt_clock_class_create(); |
33ec5dfa PP |
158 | if (!dmesg_comp->clock_class) { |
159 | BT_LOGE_STR("Cannot create clock class."); | |
160 | goto error; | |
161 | } | |
162 | ||
61f59358 PP |
163 | ret = bt_stream_class_set_default_clock_class( |
164 | dmesg_comp->stream_class, dmesg_comp->clock_class); | |
33ec5dfa | 165 | if (ret) { |
61f59358 | 166 | BT_LOGE_STR("Cannot set stream class's default clock class."); |
33ec5dfa PP |
167 | goto error; |
168 | } | |
169 | } | |
170 | ||
61f59358 PP |
171 | dmesg_comp->event_class = bt_event_class_create( |
172 | dmesg_comp->stream_class); | |
33ec5dfa | 173 | if (!dmesg_comp->event_class) { |
61f59358 PP |
174 | BT_LOGE_STR("Cannot create an event class object."); |
175 | goto error; | |
176 | } | |
177 | ||
178 | ret = bt_event_class_set_name(dmesg_comp->event_class, "string"); | |
179 | if (ret) { | |
180 | BT_LOGE_STR("Cannot set event class's name."); | |
33ec5dfa PP |
181 | goto error; |
182 | } | |
183 | ||
c82deff2 PP |
184 | fc = create_event_payload_fc(); |
185 | if (!fc) { | |
186 | BT_LOGE_STR("Cannot create event payload field class."); | |
d8866baa PP |
187 | goto error; |
188 | } | |
189 | ||
c82deff2 | 190 | ret = bt_event_class_set_payload_field_class(dmesg_comp->event_class, fc); |
33ec5dfa | 191 | if (ret) { |
c82deff2 | 192 | BT_LOGE_STR("Cannot set event class's event payload field class."); |
33ec5dfa PP |
193 | goto error; |
194 | } | |
195 | ||
33ec5dfa PP |
196 | goto end; |
197 | ||
198 | error: | |
199 | ret = -1; | |
200 | ||
201 | end: | |
e2317362 | 202 | bt_object_put_ref(fc); |
33ec5dfa PP |
203 | |
204 | if (basename) { | |
205 | g_free(basename); | |
206 | } | |
207 | ||
208 | return ret; | |
209 | } | |
210 | ||
211 | static | |
212 | int handle_params(struct dmesg_component *dmesg_comp, struct bt_value *params) | |
213 | { | |
707b323a | 214 | struct bt_value *no_timestamp = NULL; |
33ec5dfa PP |
215 | struct bt_value *path = NULL; |
216 | const char *path_str; | |
217 | int ret = 0; | |
218 | ||
7fce1b50 PP |
219 | no_timestamp = bt_value_map_borrow_entry_value(params, |
220 | "no-extract-timestamp"); | |
707b323a PP |
221 | if (no_timestamp) { |
222 | if (!bt_value_is_bool(no_timestamp)) { | |
223 | BT_LOGE("Expecting a boolean value for the `no-extract-timestamp` parameter: " | |
224 | "type=%s", | |
351704a7 | 225 | bt_common_value_type_string( |
707b323a PP |
226 | bt_value_get_type(no_timestamp))); |
227 | goto error; | |
228 | } | |
229 | ||
230 | ret = bt_value_bool_get(no_timestamp, | |
231 | &dmesg_comp->params.no_timestamp); | |
f6ccaed9 | 232 | BT_ASSERT(ret == 0); |
707b323a PP |
233 | } |
234 | ||
7fce1b50 | 235 | path = bt_value_map_borrow_entry_value(params, "path"); |
d8866baa PP |
236 | if (path) { |
237 | if (dmesg_comp->params.read_from_stdin) { | |
33ec5dfa | 238 | BT_LOGE_STR("Cannot specify both `read-from-stdin` and `path` parameters."); |
d8866baa PP |
239 | goto error; |
240 | } | |
241 | ||
242 | if (!bt_value_is_string(path)) { | |
33ec5dfa PP |
243 | BT_LOGE("Expecting a string value for the `path` parameter: " |
244 | "type=%s", | |
351704a7 | 245 | bt_common_value_type_string( |
33ec5dfa | 246 | bt_value_get_type(path))); |
d8866baa PP |
247 | goto error; |
248 | } | |
249 | ||
33ec5dfa | 250 | ret = bt_value_string_get(path, &path_str); |
f6ccaed9 | 251 | BT_ASSERT(ret == 0); |
d8866baa PP |
252 | g_string_assign(dmesg_comp->params.path, path_str); |
253 | } else { | |
4da23e31 | 254 | dmesg_comp->params.read_from_stdin = true; |
d8866baa PP |
255 | } |
256 | ||
257 | goto end; | |
258 | ||
259 | error: | |
260 | ret = -1; | |
261 | ||
262 | end: | |
d8866baa PP |
263 | return ret; |
264 | } | |
265 | ||
33ec5dfa PP |
266 | static |
267 | int create_packet_and_stream(struct dmesg_component *dmesg_comp) | |
268 | { | |
269 | int ret = 0; | |
33ec5dfa | 270 | |
61f59358 | 271 | dmesg_comp->stream = bt_stream_create(dmesg_comp->stream_class); |
33ec5dfa PP |
272 | if (!dmesg_comp->stream) { |
273 | BT_LOGE_STR("Cannot create stream object."); | |
274 | goto error; | |
275 | } | |
276 | ||
61f59358 | 277 | dmesg_comp->packet = bt_packet_create(dmesg_comp->stream); |
33ec5dfa PP |
278 | if (!dmesg_comp->packet) { |
279 | BT_LOGE_STR("Cannot create packet object."); | |
280 | goto error; | |
281 | } | |
282 | ||
61f59358 | 283 | ret = bt_trace_make_static(dmesg_comp->trace); |
33ec5dfa PP |
284 | if (ret) { |
285 | BT_LOGE_STR("Cannot make trace static."); | |
286 | goto error; | |
287 | } | |
288 | ||
289 | goto end; | |
290 | ||
291 | error: | |
292 | ret = -1; | |
293 | ||
294 | end: | |
33ec5dfa PP |
295 | return ret; |
296 | } | |
297 | ||
298 | static | |
299 | int try_create_meta_stream_packet(struct dmesg_component *dmesg_comp, | |
300 | bool has_ts) | |
301 | { | |
302 | int ret = 0; | |
303 | ||
304 | if (dmesg_comp->trace) { | |
305 | /* Already created */ | |
306 | goto end; | |
307 | } | |
308 | ||
309 | ret = create_meta(dmesg_comp, has_ts); | |
310 | if (ret) { | |
311 | BT_LOGE("Cannot create metadata objects: dmesg-comp-addr=%p", | |
312 | dmesg_comp); | |
313 | goto error; | |
314 | } | |
315 | ||
316 | ret = create_packet_and_stream(dmesg_comp); | |
317 | if (ret) { | |
318 | BT_LOGE("Cannot create packet and stream objects: " | |
319 | "dmesg-comp-addr=%p", dmesg_comp); | |
320 | goto error; | |
321 | } | |
322 | ||
323 | goto end; | |
324 | ||
325 | error: | |
326 | ret = -1; | |
327 | ||
328 | end: | |
329 | return ret; | |
330 | } | |
d8866baa PP |
331 | |
332 | static | |
333 | void destroy_dmesg_component(struct dmesg_component *dmesg_comp) | |
334 | { | |
335 | if (!dmesg_comp) { | |
336 | return; | |
337 | } | |
338 | ||
339 | if (dmesg_comp->params.path) { | |
340 | g_string_free(dmesg_comp->params.path, TRUE); | |
341 | } | |
342 | ||
e2317362 PP |
343 | bt_object_put_ref(dmesg_comp->packet); |
344 | bt_object_put_ref(dmesg_comp->trace); | |
345 | bt_object_put_ref(dmesg_comp->stream_class); | |
346 | bt_object_put_ref(dmesg_comp->event_class); | |
347 | bt_object_put_ref(dmesg_comp->stream); | |
348 | bt_object_put_ref(dmesg_comp->clock_class); | |
349 | bt_object_put_ref(dmesg_comp->cc_prio_map); | |
d8866baa PP |
350 | g_free(dmesg_comp); |
351 | } | |
352 | ||
33ec5dfa PP |
353 | static |
354 | enum bt_component_status create_port(struct bt_private_component *priv_comp) | |
355 | { | |
356 | return bt_private_component_source_add_output_private_port(priv_comp, | |
357 | "out", NULL, NULL); | |
358 | } | |
359 | ||
d8866baa PP |
360 | BT_HIDDEN |
361 | enum bt_component_status dmesg_init(struct bt_private_component *priv_comp, | |
362 | struct bt_value *params, void *init_method_data) | |
363 | { | |
364 | int ret = 0; | |
365 | struct dmesg_component *dmesg_comp = g_new0(struct dmesg_component, 1); | |
366 | enum bt_component_status status = BT_COMPONENT_STATUS_OK; | |
367 | ||
368 | if (!dmesg_comp) { | |
33ec5dfa | 369 | BT_LOGE_STR("Failed to allocate one dmesg component structure."); |
d8866baa PP |
370 | goto error; |
371 | } | |
372 | ||
373 | dmesg_comp->params.path = g_string_new(NULL); | |
374 | if (!dmesg_comp->params.path) { | |
33ec5dfa | 375 | BT_LOGE_STR("Failed to allocate a GString."); |
d8866baa PP |
376 | goto error; |
377 | } | |
378 | ||
33ec5dfa | 379 | ret = handle_params(dmesg_comp, params); |
d8866baa | 380 | if (ret) { |
33ec5dfa | 381 | BT_LOGE("Invalid parameters: comp-addr=%p", priv_comp); |
d8866baa PP |
382 | goto error; |
383 | } | |
384 | ||
33ec5dfa PP |
385 | if (!dmesg_comp->params.read_from_stdin && |
386 | !g_file_test(dmesg_comp->params.path->str, | |
387 | G_FILE_TEST_IS_REGULAR)) { | |
388 | BT_LOGE("Input path is not a regular file: " | |
389 | "comp-addr=%p, path=\"%s\"", priv_comp, | |
390 | dmesg_comp->params.path->str); | |
391 | goto error; | |
392 | } | |
d8866baa | 393 | |
33ec5dfa PP |
394 | status = create_port(priv_comp); |
395 | if (status != BT_COMPONENT_STATUS_OK) { | |
396 | goto error; | |
397 | } | |
d8866baa | 398 | |
33ec5dfa | 399 | (void) bt_private_component_set_user_data(priv_comp, dmesg_comp); |
d8866baa PP |
400 | goto end; |
401 | ||
402 | error: | |
403 | destroy_dmesg_component(dmesg_comp); | |
33ec5dfa PP |
404 | (void) bt_private_component_set_user_data(priv_comp, NULL); |
405 | ||
406 | if (status >= 0) { | |
407 | status = BT_COMPONENT_STATUS_ERROR; | |
408 | } | |
d8866baa PP |
409 | |
410 | end: | |
411 | return status; | |
412 | } | |
413 | ||
414 | BT_HIDDEN | |
415 | void dmesg_finalize(struct bt_private_component *priv_comp) | |
416 | { | |
33ec5dfa PP |
417 | void *data = bt_private_component_get_user_data(priv_comp); |
418 | ||
419 | destroy_dmesg_component(data); | |
420 | } | |
421 | ||
422 | static | |
312c056a | 423 | struct bt_notification *create_init_event_notif_from_line( |
f0010051 | 424 | struct dmesg_notif_iter *notif_iter, |
312c056a | 425 | const char *line, const char **new_start) |
33ec5dfa | 426 | { |
312c056a PP |
427 | struct bt_event *event; |
428 | struct bt_notification *notif = NULL; | |
33ec5dfa PP |
429 | bool has_timestamp = false; |
430 | unsigned long sec, usec, msec; | |
431 | unsigned int year, mon, mday, hour, min; | |
432 | uint64_t ts = 0; | |
33ec5dfa | 433 | int ret = 0; |
f0010051 | 434 | struct dmesg_component *dmesg_comp = notif_iter->dmesg_comp; |
33ec5dfa | 435 | |
33ec5dfa PP |
436 | *new_start = line; |
437 | ||
707b323a PP |
438 | if (dmesg_comp->params.no_timestamp) { |
439 | goto skip_ts; | |
440 | } | |
441 | ||
33ec5dfa PP |
442 | /* Extract time from input line */ |
443 | if (sscanf(line, "[%lu.%lu] ", &sec, &usec) == 2) { | |
444 | ts = (uint64_t) sec * USEC_PER_SEC + (uint64_t) usec; | |
445 | ||
446 | /* | |
447 | * The clock class we use has a 1 GHz frequency: convert | |
448 | * from µs to ns. | |
449 | */ | |
450 | ts *= NSEC_PER_USEC; | |
451 | has_timestamp = true; | |
452 | } else if (sscanf(line, "[%u-%u-%u %u:%u:%lu.%lu] ", | |
453 | &year, &mon, &mday, &hour, &min, | |
454 | &sec, &msec) == 7) { | |
455 | time_t ep_sec; | |
456 | struct tm ti; | |
457 | ||
458 | memset(&ti, 0, sizeof(ti)); | |
459 | ti.tm_year = year - 1900; /* From 1900 */ | |
460 | ti.tm_mon = mon - 1; /* 0 to 11 */ | |
461 | ti.tm_mday = mday; | |
462 | ti.tm_hour = hour; | |
463 | ti.tm_min = min; | |
464 | ti.tm_sec = sec; | |
465 | ||
466 | ep_sec = bt_timegm(&ti); | |
467 | if (ep_sec != (time_t) -1) { | |
468 | ts = (uint64_t) ep_sec * NSEC_PER_SEC | |
469 | + (uint64_t) msec * NSEC_PER_MSEC; | |
470 | } | |
471 | ||
472 | has_timestamp = true; | |
473 | } | |
474 | ||
475 | if (has_timestamp) { | |
476 | /* Set new start for the message portion of the line */ | |
477 | *new_start = strchr(line, ']'); | |
f6ccaed9 | 478 | BT_ASSERT(*new_start); |
33ec5dfa PP |
479 | (*new_start)++; |
480 | ||
481 | if ((*new_start)[0] == ' ') { | |
482 | (*new_start)++; | |
483 | } | |
484 | } | |
485 | ||
707b323a | 486 | skip_ts: |
33ec5dfa PP |
487 | /* |
488 | * At this point, we know if the stream class's event header | |
c82deff2 | 489 | * field class should have a timestamp or not, so we can lazily |
33ec5dfa PP |
490 | * create the metadata, stream, and packet objects. |
491 | */ | |
492 | ret = try_create_meta_stream_packet(dmesg_comp, has_timestamp); | |
493 | if (ret) { | |
494 | /* try_create_meta_stream_packet() logs errors */ | |
495 | goto error; | |
496 | } | |
497 | ||
f0010051 | 498 | notif = bt_notification_event_create(notif_iter->pc_notif_iter, |
e22b45d0 | 499 | dmesg_comp->event_class, dmesg_comp->packet); |
312c056a PP |
500 | if (!notif) { |
501 | BT_LOGE_STR("Cannot create event notification."); | |
502 | goto error; | |
503 | } | |
33ec5dfa | 504 | |
312c056a PP |
505 | event = bt_notification_event_borrow_event(notif); |
506 | BT_ASSERT(event); | |
33ec5dfa | 507 | |
312c056a | 508 | if (dmesg_comp->clock_class) { |
61f59358 | 509 | ret = bt_event_set_default_clock_value(event, ts); |
312c056a | 510 | BT_ASSERT(ret == 0); |
33ec5dfa PP |
511 | } |
512 | ||
513 | goto end; | |
514 | ||
515 | error: | |
e2317362 | 516 | BT_OBJECT_PUT_REF_AND_RESET(notif); |
33ec5dfa PP |
517 | |
518 | end: | |
312c056a | 519 | return notif; |
33ec5dfa PP |
520 | } |
521 | ||
522 | static | |
f0010051 | 523 | int fill_event_payload_from_line(const char *line, struct bt_event *event) |
33ec5dfa | 524 | { |
50842bdc PP |
525 | struct bt_field *ep_field = NULL; |
526 | struct bt_field *str_field = NULL; | |
33ec5dfa PP |
527 | size_t len; |
528 | int ret; | |
529 | ||
61f59358 | 530 | ep_field = bt_event_borrow_payload_field(event); |
312c056a | 531 | BT_ASSERT(ep_field); |
61f59358 PP |
532 | str_field = bt_field_structure_borrow_member_field_by_index(ep_field, |
533 | 0); | |
33ec5dfa | 534 | if (!str_field) { |
312c056a | 535 | BT_LOGE_STR("Cannot borrow `timestamp` field from event payload structure field."); |
33ec5dfa PP |
536 | goto error; |
537 | } | |
538 | ||
539 | len = strlen(line); | |
540 | if (line[len - 1] == '\n') { | |
541 | /* Do not include the newline character in the payload */ | |
542 | len--; | |
543 | } | |
544 | ||
312c056a PP |
545 | ret = bt_field_string_clear(str_field); |
546 | if (ret) { | |
547 | BT_LOGE_STR("Cannot clear string field object."); | |
548 | goto error; | |
549 | } | |
550 | ||
61f59358 | 551 | ret = bt_field_string_append_with_length(str_field, line, len); |
33ec5dfa PP |
552 | if (ret) { |
553 | BT_LOGE("Cannot append value to string field object: " | |
554 | "len=%zu", len); | |
555 | goto error; | |
556 | } | |
557 | ||
33ec5dfa PP |
558 | goto end; |
559 | ||
560 | error: | |
561 | ret = -1; | |
562 | ||
563 | end: | |
33ec5dfa PP |
564 | return ret; |
565 | } | |
566 | ||
567 | static | |
568 | struct bt_notification *create_notif_from_line( | |
f0010051 | 569 | struct dmesg_notif_iter *dmesg_notif_iter, const char *line) |
33ec5dfa | 570 | { |
50842bdc | 571 | struct bt_event *event = NULL; |
33ec5dfa PP |
572 | struct bt_notification *notif = NULL; |
573 | const char *new_start; | |
574 | int ret; | |
575 | ||
f0010051 PP |
576 | notif = create_init_event_notif_from_line(dmesg_notif_iter, |
577 | line, &new_start); | |
312c056a PP |
578 | if (!notif) { |
579 | BT_LOGE_STR("Cannot create and initialize event notification from line."); | |
33ec5dfa PP |
580 | goto error; |
581 | } | |
582 | ||
312c056a PP |
583 | event = bt_notification_event_borrow_event(notif); |
584 | BT_ASSERT(event); | |
f0010051 | 585 | ret = fill_event_payload_from_line(new_start, event); |
33ec5dfa | 586 | if (ret) { |
312c056a | 587 | BT_LOGE("Cannot fill event payload field from line: " |
33ec5dfa PP |
588 | "ret=%d", ret); |
589 | goto error; | |
590 | } | |
591 | ||
33ec5dfa PP |
592 | goto end; |
593 | ||
594 | error: | |
e2317362 | 595 | BT_OBJECT_PUT_REF_AND_RESET(notif); |
33ec5dfa PP |
596 | |
597 | end: | |
33ec5dfa PP |
598 | return notif; |
599 | } | |
600 | ||
601 | static | |
602 | void destroy_dmesg_notif_iter(struct dmesg_notif_iter *dmesg_notif_iter) | |
603 | { | |
604 | if (!dmesg_notif_iter) { | |
605 | return; | |
606 | } | |
607 | ||
608 | if (dmesg_notif_iter->fp && dmesg_notif_iter->fp != stdin) { | |
609 | if (fclose(dmesg_notif_iter->fp)) { | |
610 | BT_LOGE_ERRNO("Cannot close input file", "."); | |
611 | } | |
612 | } | |
d8866baa | 613 | |
e2317362 | 614 | bt_object_put_ref(dmesg_notif_iter->tmp_event_notif); |
33ec5dfa PP |
615 | free(dmesg_notif_iter->linebuf); |
616 | g_free(dmesg_notif_iter); | |
d8866baa PP |
617 | } |
618 | ||
619 | BT_HIDDEN | |
620 | enum bt_notification_iterator_status dmesg_notif_iter_init( | |
90157d89 | 621 | struct bt_private_connection_private_notification_iterator *priv_notif_iter, |
d8866baa PP |
622 | struct bt_private_port *priv_port) |
623 | { | |
33ec5dfa PP |
624 | struct bt_private_component *priv_comp = NULL; |
625 | struct dmesg_component *dmesg_comp; | |
626 | struct dmesg_notif_iter *dmesg_notif_iter = | |
627 | g_new0(struct dmesg_notif_iter, 1); | |
628 | enum bt_notification_iterator_status status = | |
629 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
630 | ||
631 | if (!dmesg_notif_iter) { | |
632 | BT_LOGE_STR("Failed to allocate on dmesg notification iterator structure."); | |
633 | goto error; | |
634 | } | |
635 | ||
90157d89 | 636 | priv_comp = bt_private_connection_private_notification_iterator_get_private_component( |
33ec5dfa | 637 | priv_notif_iter); |
f6ccaed9 | 638 | BT_ASSERT(priv_comp); |
33ec5dfa | 639 | dmesg_comp = bt_private_component_get_user_data(priv_comp); |
f6ccaed9 | 640 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 641 | dmesg_notif_iter->dmesg_comp = dmesg_comp; |
f0010051 | 642 | dmesg_notif_iter->pc_notif_iter = priv_notif_iter; |
d8866baa | 643 | |
33ec5dfa PP |
644 | if (dmesg_comp->params.read_from_stdin) { |
645 | dmesg_notif_iter->fp = stdin; | |
646 | } else { | |
647 | dmesg_notif_iter->fp = fopen(dmesg_comp->params.path->str, "r"); | |
648 | if (!dmesg_notif_iter->fp) { | |
649 | BT_LOGE_ERRNO("Cannot open input file in read mode", ": path=\"%s\"", | |
650 | dmesg_comp->params.path->str); | |
651 | goto error; | |
652 | } | |
653 | } | |
654 | ||
90157d89 | 655 | (void) bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter, |
33ec5dfa PP |
656 | dmesg_notif_iter); |
657 | goto end; | |
658 | ||
659 | error: | |
660 | destroy_dmesg_notif_iter(dmesg_notif_iter); | |
90157d89 | 661 | (void) bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter, |
33ec5dfa PP |
662 | NULL); |
663 | if (status >= 0) { | |
664 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; | |
665 | } | |
666 | ||
667 | end: | |
e2317362 | 668 | bt_object_put_ref(priv_comp); |
33ec5dfa | 669 | return status; |
d8866baa PP |
670 | } |
671 | ||
672 | BT_HIDDEN | |
33ec5dfa | 673 | void dmesg_notif_iter_finalize( |
90157d89 | 674 | struct bt_private_connection_private_notification_iterator *priv_notif_iter) |
d8866baa | 675 | { |
90157d89 | 676 | destroy_dmesg_notif_iter(bt_private_connection_private_notification_iterator_get_user_data( |
33ec5dfa | 677 | priv_notif_iter)); |
d8866baa PP |
678 | } |
679 | ||
d4393e08 PP |
680 | static |
681 | enum bt_notification_iterator_status dmesg_notif_iter_next_one( | |
682 | struct dmesg_notif_iter *dmesg_notif_iter, | |
683 | struct bt_notification **notif) | |
d8866baa | 684 | { |
33ec5dfa | 685 | ssize_t len; |
33ec5dfa | 686 | struct dmesg_component *dmesg_comp; |
d4393e08 PP |
687 | enum bt_notification_iterator_status status = |
688 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
d8866baa | 689 | |
f6ccaed9 | 690 | BT_ASSERT(dmesg_notif_iter); |
33ec5dfa | 691 | dmesg_comp = dmesg_notif_iter->dmesg_comp; |
f6ccaed9 | 692 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 693 | |
312c056a | 694 | if (dmesg_notif_iter->state == STATE_DONE) { |
d4393e08 | 695 | status = BT_NOTIFICATION_ITERATOR_STATUS_END; |
312c056a PP |
696 | goto end; |
697 | } | |
698 | ||
699 | if (dmesg_notif_iter->tmp_event_notif || | |
700 | dmesg_notif_iter->state == STATE_EMIT_PACKET_END || | |
701 | dmesg_notif_iter->state == STATE_EMIT_STREAM_END) { | |
702 | goto handle_state; | |
703 | } | |
704 | ||
33ec5dfa PP |
705 | while (true) { |
706 | const char *ch; | |
707 | bool only_spaces = true; | |
708 | ||
709 | len = bt_getline(&dmesg_notif_iter->linebuf, | |
710 | &dmesg_notif_iter->linebuf_len, dmesg_notif_iter->fp); | |
711 | if (len < 0) { | |
712 | if (errno == EINVAL) { | |
d4393e08 | 713 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa | 714 | } else if (errno == ENOMEM) { |
d4393e08 | 715 | status = |
33ec5dfa PP |
716 | BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; |
717 | } else { | |
312c056a PP |
718 | if (dmesg_notif_iter->state == STATE_EMIT_STREAM_BEGINNING) { |
719 | /* Stream did not even begin */ | |
d4393e08 | 720 | status = BT_NOTIFICATION_ITERATOR_STATUS_END; |
312c056a PP |
721 | goto end; |
722 | } else { | |
723 | /* End current packet now */ | |
724 | dmesg_notif_iter->state = | |
725 | STATE_EMIT_PACKET_END; | |
726 | goto handle_state; | |
727 | } | |
33ec5dfa PP |
728 | } |
729 | ||
730 | goto end; | |
731 | } | |
732 | ||
f6ccaed9 | 733 | BT_ASSERT(dmesg_notif_iter->linebuf); |
33ec5dfa PP |
734 | |
735 | /* Ignore empty lines, once trimmed */ | |
736 | for (ch = dmesg_notif_iter->linebuf; *ch != '\0'; ch++) { | |
737 | if (!isspace(*ch)) { | |
738 | only_spaces = false; | |
739 | break; | |
740 | } | |
741 | } | |
742 | ||
743 | if (!only_spaces) { | |
744 | break; | |
745 | } | |
746 | } | |
747 | ||
f0010051 PP |
748 | dmesg_notif_iter->tmp_event_notif = create_notif_from_line( |
749 | dmesg_notif_iter, dmesg_notif_iter->linebuf); | |
312c056a | 750 | if (!dmesg_notif_iter->tmp_event_notif) { |
33ec5dfa PP |
751 | BT_LOGE("Cannot create event notification from line: " |
752 | "dmesg-comp-addr=%p, line=\"%s\"", dmesg_comp, | |
753 | dmesg_notif_iter->linebuf); | |
312c056a PP |
754 | goto end; |
755 | } | |
756 | ||
757 | handle_state: | |
758 | BT_ASSERT(dmesg_comp->trace); | |
759 | ||
760 | switch (dmesg_notif_iter->state) { | |
761 | case STATE_EMIT_STREAM_BEGINNING: | |
762 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
d4393e08 | 763 | *notif = bt_notification_stream_begin_create( |
f0010051 | 764 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->stream); |
312c056a PP |
765 | dmesg_notif_iter->state = STATE_EMIT_PACKET_BEGINNING; |
766 | break; | |
767 | case STATE_EMIT_PACKET_BEGINNING: | |
768 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
d4393e08 | 769 | *notif = bt_notification_packet_begin_create( |
f0010051 | 770 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->packet); |
312c056a PP |
771 | dmesg_notif_iter->state = STATE_EMIT_EVENT; |
772 | break; | |
773 | case STATE_EMIT_EVENT: | |
774 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
d4393e08 PP |
775 | *notif = dmesg_notif_iter->tmp_event_notif; |
776 | dmesg_notif_iter->tmp_event_notif = NULL; | |
312c056a PP |
777 | break; |
778 | case STATE_EMIT_PACKET_END: | |
d4393e08 | 779 | *notif = bt_notification_packet_end_create( |
f0010051 | 780 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->packet); |
312c056a PP |
781 | dmesg_notif_iter->state = STATE_EMIT_STREAM_END; |
782 | break; | |
783 | case STATE_EMIT_STREAM_END: | |
d4393e08 | 784 | *notif = bt_notification_stream_end_create( |
f0010051 | 785 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->stream); |
312c056a PP |
786 | dmesg_notif_iter->state = STATE_DONE; |
787 | break; | |
788 | default: | |
789 | break; | |
790 | } | |
791 | ||
d4393e08 | 792 | if (!*notif) { |
312c056a PP |
793 | BT_LOGE("Cannot create notification: dmesg-comp-addr=%p", |
794 | dmesg_comp); | |
d4393e08 | 795 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa PP |
796 | } |
797 | ||
798 | end: | |
d4393e08 PP |
799 | return status; |
800 | } | |
801 | ||
802 | BT_HIDDEN | |
803 | enum bt_notification_iterator_status dmesg_notif_iter_next( | |
804 | struct bt_private_connection_private_notification_iterator *priv_notif_iter, | |
805 | bt_notification_array notifs, uint64_t capacity, | |
806 | uint64_t *count) | |
807 | { | |
808 | struct dmesg_notif_iter *dmesg_notif_iter = | |
809 | bt_private_connection_private_notification_iterator_get_user_data( | |
810 | priv_notif_iter); | |
811 | enum bt_notification_iterator_status status = | |
812 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
813 | uint64_t i = 0; | |
814 | ||
815 | while (i < capacity && status == BT_NOTIFICATION_ITERATOR_STATUS_OK) { | |
816 | status = dmesg_notif_iter_next_one(dmesg_notif_iter, ¬ifs[i]); | |
817 | if (status == BT_NOTIFICATION_ITERATOR_STATUS_OK) { | |
818 | i++; | |
819 | } | |
820 | } | |
821 | ||
822 | if (i > 0) { | |
823 | /* | |
824 | * Even if dmesg_notif_iter_next_one() returned | |
825 | * something else than | |
826 | * BT_NOTIFICATION_ITERATOR_STATUS_OK, we accumulated | |
827 | * notification objects in the output notification | |
828 | * array, so we need to return | |
829 | * BT_NOTIFICATION_ITERATOR_STATUS_OK so that they are | |
830 | * transfered to downstream. This other status occurs | |
831 | * again the next time muxer_notif_iter_do_next() is | |
832 | * called, possibly without any accumulated | |
833 | * notification, in which case we'll return it. | |
834 | */ | |
835 | *count = i; | |
836 | status = BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
837 | } | |
838 | ||
839 | return status; | |
d8866baa | 840 | } |