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> |
da91b29a | 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 |
5cd6d0e5 | 81 | struct bt_field_class *create_event_payload_fc(void) |
33ec5dfa | 82 | { |
5cd6d0e5 PP |
83 | struct bt_field_class *root_fc = NULL; |
84 | struct bt_field_class *fc = NULL; | |
33ec5dfa PP |
85 | int ret; |
86 | ||
5cd6d0e5 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 | ||
5cd6d0e5 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 | ||
5cd6d0e5 | 99 | ret = bt_field_class_structure_append_member(root_fc, "str", fc); |
33ec5dfa | 100 | if (ret) { |
5cd6d0e5 | 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: | |
65300d60 | 109 | BT_OBJECT_PUT_REF_AND_RESET(root_fc); |
33ec5dfa PP |
110 | |
111 | end: | |
65300d60 | 112 | bt_object_put_ref(fc); |
5cd6d0e5 | 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 | { | |
5cd6d0e5 | 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 | ||
44c440bc | 150 | dmesg_comp->stream_class = bt_stream_class_create(dmesg_comp->trace); |
33ec5dfa | 151 | if (!dmesg_comp->stream_class) { |
44c440bc | 152 | BT_LOGE_STR("Cannot create a stream class object."); |
33ec5dfa PP |
153 | goto error; |
154 | } | |
155 | ||
33ec5dfa | 156 | if (has_ts) { |
44c440bc | 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 | ||
44c440bc PP |
163 | ret = bt_stream_class_set_default_clock_class( |
164 | dmesg_comp->stream_class, dmesg_comp->clock_class); | |
33ec5dfa | 165 | if (ret) { |
44c440bc | 166 | BT_LOGE_STR("Cannot set stream class's default clock class."); |
33ec5dfa PP |
167 | goto error; |
168 | } | |
169 | } | |
170 | ||
44c440bc PP |
171 | dmesg_comp->event_class = bt_event_class_create( |
172 | dmesg_comp->stream_class); | |
33ec5dfa | 173 | if (!dmesg_comp->event_class) { |
44c440bc 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 | ||
5cd6d0e5 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 | ||
5cd6d0e5 | 190 | ret = bt_event_class_set_payload_field_class(dmesg_comp->event_class, fc); |
33ec5dfa | 191 | if (ret) { |
5cd6d0e5 | 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: | |
65300d60 | 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 | ||
07208d85 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", | |
da91b29a | 225 | bt_common_value_type_string( |
707b323a PP |
226 | bt_value_get_type(no_timestamp))); |
227 | goto error; | |
228 | } | |
229 | ||
601b0d3c PP |
230 | dmesg_comp->params.no_timestamp = |
231 | bt_value_bool_get(no_timestamp); | |
707b323a PP |
232 | } |
233 | ||
07208d85 | 234 | path = bt_value_map_borrow_entry_value(params, "path"); |
d8866baa PP |
235 | if (path) { |
236 | if (dmesg_comp->params.read_from_stdin) { | |
33ec5dfa | 237 | BT_LOGE_STR("Cannot specify both `read-from-stdin` and `path` parameters."); |
d8866baa PP |
238 | goto error; |
239 | } | |
240 | ||
241 | if (!bt_value_is_string(path)) { | |
33ec5dfa PP |
242 | BT_LOGE("Expecting a string value for the `path` parameter: " |
243 | "type=%s", | |
da91b29a | 244 | bt_common_value_type_string( |
33ec5dfa | 245 | bt_value_get_type(path))); |
d8866baa PP |
246 | goto error; |
247 | } | |
248 | ||
601b0d3c | 249 | path_str = bt_value_string_get(path); |
d8866baa PP |
250 | g_string_assign(dmesg_comp->params.path, path_str); |
251 | } else { | |
4da23e31 | 252 | dmesg_comp->params.read_from_stdin = true; |
d8866baa PP |
253 | } |
254 | ||
255 | goto end; | |
256 | ||
257 | error: | |
258 | ret = -1; | |
259 | ||
260 | end: | |
d8866baa PP |
261 | return ret; |
262 | } | |
263 | ||
33ec5dfa PP |
264 | static |
265 | int create_packet_and_stream(struct dmesg_component *dmesg_comp) | |
266 | { | |
267 | int ret = 0; | |
33ec5dfa | 268 | |
44c440bc | 269 | dmesg_comp->stream = bt_stream_create(dmesg_comp->stream_class); |
33ec5dfa PP |
270 | if (!dmesg_comp->stream) { |
271 | BT_LOGE_STR("Cannot create stream object."); | |
272 | goto error; | |
273 | } | |
274 | ||
44c440bc | 275 | dmesg_comp->packet = bt_packet_create(dmesg_comp->stream); |
33ec5dfa PP |
276 | if (!dmesg_comp->packet) { |
277 | BT_LOGE_STR("Cannot create packet object."); | |
278 | goto error; | |
279 | } | |
280 | ||
44c440bc | 281 | ret = bt_trace_make_static(dmesg_comp->trace); |
33ec5dfa PP |
282 | if (ret) { |
283 | BT_LOGE_STR("Cannot make trace static."); | |
284 | goto error; | |
285 | } | |
286 | ||
287 | goto end; | |
288 | ||
289 | error: | |
290 | ret = -1; | |
291 | ||
292 | end: | |
33ec5dfa PP |
293 | return ret; |
294 | } | |
295 | ||
296 | static | |
297 | int try_create_meta_stream_packet(struct dmesg_component *dmesg_comp, | |
298 | bool has_ts) | |
299 | { | |
300 | int ret = 0; | |
301 | ||
302 | if (dmesg_comp->trace) { | |
303 | /* Already created */ | |
304 | goto end; | |
305 | } | |
306 | ||
307 | ret = create_meta(dmesg_comp, has_ts); | |
308 | if (ret) { | |
309 | BT_LOGE("Cannot create metadata objects: dmesg-comp-addr=%p", | |
310 | dmesg_comp); | |
311 | goto error; | |
312 | } | |
313 | ||
314 | ret = create_packet_and_stream(dmesg_comp); | |
315 | if (ret) { | |
316 | BT_LOGE("Cannot create packet and stream objects: " | |
317 | "dmesg-comp-addr=%p", dmesg_comp); | |
318 | goto error; | |
319 | } | |
320 | ||
321 | goto end; | |
322 | ||
323 | error: | |
324 | ret = -1; | |
325 | ||
326 | end: | |
327 | return ret; | |
328 | } | |
d8866baa PP |
329 | |
330 | static | |
331 | void destroy_dmesg_component(struct dmesg_component *dmesg_comp) | |
332 | { | |
333 | if (!dmesg_comp) { | |
334 | return; | |
335 | } | |
336 | ||
337 | if (dmesg_comp->params.path) { | |
338 | g_string_free(dmesg_comp->params.path, TRUE); | |
339 | } | |
340 | ||
65300d60 PP |
341 | bt_object_put_ref(dmesg_comp->packet); |
342 | bt_object_put_ref(dmesg_comp->trace); | |
343 | bt_object_put_ref(dmesg_comp->stream_class); | |
344 | bt_object_put_ref(dmesg_comp->event_class); | |
345 | bt_object_put_ref(dmesg_comp->stream); | |
346 | bt_object_put_ref(dmesg_comp->clock_class); | |
347 | bt_object_put_ref(dmesg_comp->cc_prio_map); | |
d8866baa PP |
348 | g_free(dmesg_comp); |
349 | } | |
350 | ||
33ec5dfa PP |
351 | static |
352 | enum bt_component_status create_port(struct bt_private_component *priv_comp) | |
353 | { | |
354 | return bt_private_component_source_add_output_private_port(priv_comp, | |
355 | "out", NULL, NULL); | |
356 | } | |
357 | ||
d8866baa PP |
358 | BT_HIDDEN |
359 | enum bt_component_status dmesg_init(struct bt_private_component *priv_comp, | |
360 | struct bt_value *params, void *init_method_data) | |
361 | { | |
362 | int ret = 0; | |
363 | struct dmesg_component *dmesg_comp = g_new0(struct dmesg_component, 1); | |
364 | enum bt_component_status status = BT_COMPONENT_STATUS_OK; | |
365 | ||
366 | if (!dmesg_comp) { | |
33ec5dfa | 367 | BT_LOGE_STR("Failed to allocate one dmesg component structure."); |
d8866baa PP |
368 | goto error; |
369 | } | |
370 | ||
371 | dmesg_comp->params.path = g_string_new(NULL); | |
372 | if (!dmesg_comp->params.path) { | |
33ec5dfa | 373 | BT_LOGE_STR("Failed to allocate a GString."); |
d8866baa PP |
374 | goto error; |
375 | } | |
376 | ||
33ec5dfa | 377 | ret = handle_params(dmesg_comp, params); |
d8866baa | 378 | if (ret) { |
33ec5dfa | 379 | BT_LOGE("Invalid parameters: comp-addr=%p", priv_comp); |
d8866baa PP |
380 | goto error; |
381 | } | |
382 | ||
33ec5dfa PP |
383 | if (!dmesg_comp->params.read_from_stdin && |
384 | !g_file_test(dmesg_comp->params.path->str, | |
385 | G_FILE_TEST_IS_REGULAR)) { | |
386 | BT_LOGE("Input path is not a regular file: " | |
387 | "comp-addr=%p, path=\"%s\"", priv_comp, | |
388 | dmesg_comp->params.path->str); | |
389 | goto error; | |
390 | } | |
d8866baa | 391 | |
33ec5dfa PP |
392 | status = create_port(priv_comp); |
393 | if (status != BT_COMPONENT_STATUS_OK) { | |
394 | goto error; | |
395 | } | |
d8866baa | 396 | |
33ec5dfa | 397 | (void) bt_private_component_set_user_data(priv_comp, dmesg_comp); |
d8866baa PP |
398 | goto end; |
399 | ||
400 | error: | |
401 | destroy_dmesg_component(dmesg_comp); | |
33ec5dfa PP |
402 | (void) bt_private_component_set_user_data(priv_comp, NULL); |
403 | ||
404 | if (status >= 0) { | |
405 | status = BT_COMPONENT_STATUS_ERROR; | |
406 | } | |
d8866baa PP |
407 | |
408 | end: | |
409 | return status; | |
410 | } | |
411 | ||
412 | BT_HIDDEN | |
413 | void dmesg_finalize(struct bt_private_component *priv_comp) | |
414 | { | |
33ec5dfa PP |
415 | void *data = bt_private_component_get_user_data(priv_comp); |
416 | ||
417 | destroy_dmesg_component(data); | |
418 | } | |
419 | ||
420 | static | |
312c056a | 421 | struct bt_notification *create_init_event_notif_from_line( |
f0010051 | 422 | struct dmesg_notif_iter *notif_iter, |
312c056a | 423 | const char *line, const char **new_start) |
33ec5dfa | 424 | { |
312c056a PP |
425 | struct bt_event *event; |
426 | struct bt_notification *notif = NULL; | |
33ec5dfa PP |
427 | bool has_timestamp = false; |
428 | unsigned long sec, usec, msec; | |
429 | unsigned int year, mon, mday, hour, min; | |
430 | uint64_t ts = 0; | |
33ec5dfa | 431 | int ret = 0; |
f0010051 | 432 | struct dmesg_component *dmesg_comp = notif_iter->dmesg_comp; |
33ec5dfa | 433 | |
33ec5dfa PP |
434 | *new_start = line; |
435 | ||
707b323a PP |
436 | if (dmesg_comp->params.no_timestamp) { |
437 | goto skip_ts; | |
438 | } | |
439 | ||
33ec5dfa PP |
440 | /* Extract time from input line */ |
441 | if (sscanf(line, "[%lu.%lu] ", &sec, &usec) == 2) { | |
442 | ts = (uint64_t) sec * USEC_PER_SEC + (uint64_t) usec; | |
443 | ||
444 | /* | |
445 | * The clock class we use has a 1 GHz frequency: convert | |
446 | * from µs to ns. | |
447 | */ | |
448 | ts *= NSEC_PER_USEC; | |
449 | has_timestamp = true; | |
450 | } else if (sscanf(line, "[%u-%u-%u %u:%u:%lu.%lu] ", | |
451 | &year, &mon, &mday, &hour, &min, | |
452 | &sec, &msec) == 7) { | |
453 | time_t ep_sec; | |
454 | struct tm ti; | |
455 | ||
456 | memset(&ti, 0, sizeof(ti)); | |
457 | ti.tm_year = year - 1900; /* From 1900 */ | |
458 | ti.tm_mon = mon - 1; /* 0 to 11 */ | |
459 | ti.tm_mday = mday; | |
460 | ti.tm_hour = hour; | |
461 | ti.tm_min = min; | |
462 | ti.tm_sec = sec; | |
463 | ||
464 | ep_sec = bt_timegm(&ti); | |
465 | if (ep_sec != (time_t) -1) { | |
466 | ts = (uint64_t) ep_sec * NSEC_PER_SEC | |
467 | + (uint64_t) msec * NSEC_PER_MSEC; | |
468 | } | |
469 | ||
470 | has_timestamp = true; | |
471 | } | |
472 | ||
473 | if (has_timestamp) { | |
474 | /* Set new start for the message portion of the line */ | |
475 | *new_start = strchr(line, ']'); | |
f6ccaed9 | 476 | BT_ASSERT(*new_start); |
33ec5dfa PP |
477 | (*new_start)++; |
478 | ||
479 | if ((*new_start)[0] == ' ') { | |
480 | (*new_start)++; | |
481 | } | |
482 | } | |
483 | ||
707b323a | 484 | skip_ts: |
33ec5dfa PP |
485 | /* |
486 | * At this point, we know if the stream class's event header | |
5cd6d0e5 | 487 | * field class should have a timestamp or not, so we can lazily |
33ec5dfa PP |
488 | * create the metadata, stream, and packet objects. |
489 | */ | |
490 | ret = try_create_meta_stream_packet(dmesg_comp, has_timestamp); | |
491 | if (ret) { | |
492 | /* try_create_meta_stream_packet() logs errors */ | |
493 | goto error; | |
494 | } | |
495 | ||
f0010051 | 496 | notif = bt_notification_event_create(notif_iter->pc_notif_iter, |
e22b45d0 | 497 | dmesg_comp->event_class, dmesg_comp->packet); |
312c056a PP |
498 | if (!notif) { |
499 | BT_LOGE_STR("Cannot create event notification."); | |
500 | goto error; | |
501 | } | |
33ec5dfa | 502 | |
312c056a PP |
503 | event = bt_notification_event_borrow_event(notif); |
504 | BT_ASSERT(event); | |
33ec5dfa | 505 | |
312c056a | 506 | if (dmesg_comp->clock_class) { |
44c440bc | 507 | ret = bt_event_set_default_clock_value(event, ts); |
312c056a | 508 | BT_ASSERT(ret == 0); |
33ec5dfa PP |
509 | } |
510 | ||
511 | goto end; | |
512 | ||
513 | error: | |
65300d60 | 514 | BT_OBJECT_PUT_REF_AND_RESET(notif); |
33ec5dfa PP |
515 | |
516 | end: | |
312c056a | 517 | return notif; |
33ec5dfa PP |
518 | } |
519 | ||
520 | static | |
f0010051 | 521 | int fill_event_payload_from_line(const char *line, struct bt_event *event) |
33ec5dfa | 522 | { |
50842bdc PP |
523 | struct bt_field *ep_field = NULL; |
524 | struct bt_field *str_field = NULL; | |
33ec5dfa PP |
525 | size_t len; |
526 | int ret; | |
527 | ||
44c440bc | 528 | ep_field = bt_event_borrow_payload_field(event); |
312c056a | 529 | BT_ASSERT(ep_field); |
44c440bc PP |
530 | str_field = bt_field_structure_borrow_member_field_by_index(ep_field, |
531 | 0); | |
33ec5dfa | 532 | if (!str_field) { |
312c056a | 533 | BT_LOGE_STR("Cannot borrow `timestamp` field from event payload structure field."); |
33ec5dfa PP |
534 | goto error; |
535 | } | |
536 | ||
537 | len = strlen(line); | |
538 | if (line[len - 1] == '\n') { | |
539 | /* Do not include the newline character in the payload */ | |
540 | len--; | |
541 | } | |
542 | ||
312c056a PP |
543 | ret = bt_field_string_clear(str_field); |
544 | if (ret) { | |
545 | BT_LOGE_STR("Cannot clear string field object."); | |
546 | goto error; | |
547 | } | |
548 | ||
44c440bc | 549 | ret = bt_field_string_append_with_length(str_field, line, len); |
33ec5dfa PP |
550 | if (ret) { |
551 | BT_LOGE("Cannot append value to string field object: " | |
552 | "len=%zu", len); | |
553 | goto error; | |
554 | } | |
555 | ||
33ec5dfa PP |
556 | goto end; |
557 | ||
558 | error: | |
559 | ret = -1; | |
560 | ||
561 | end: | |
33ec5dfa PP |
562 | return ret; |
563 | } | |
564 | ||
565 | static | |
566 | struct bt_notification *create_notif_from_line( | |
f0010051 | 567 | struct dmesg_notif_iter *dmesg_notif_iter, const char *line) |
33ec5dfa | 568 | { |
50842bdc | 569 | struct bt_event *event = NULL; |
33ec5dfa PP |
570 | struct bt_notification *notif = NULL; |
571 | const char *new_start; | |
572 | int ret; | |
573 | ||
f0010051 PP |
574 | notif = create_init_event_notif_from_line(dmesg_notif_iter, |
575 | line, &new_start); | |
312c056a PP |
576 | if (!notif) { |
577 | BT_LOGE_STR("Cannot create and initialize event notification from line."); | |
33ec5dfa PP |
578 | goto error; |
579 | } | |
580 | ||
312c056a PP |
581 | event = bt_notification_event_borrow_event(notif); |
582 | BT_ASSERT(event); | |
f0010051 | 583 | ret = fill_event_payload_from_line(new_start, event); |
33ec5dfa | 584 | if (ret) { |
312c056a | 585 | BT_LOGE("Cannot fill event payload field from line: " |
33ec5dfa PP |
586 | "ret=%d", ret); |
587 | goto error; | |
588 | } | |
589 | ||
33ec5dfa PP |
590 | goto end; |
591 | ||
592 | error: | |
65300d60 | 593 | BT_OBJECT_PUT_REF_AND_RESET(notif); |
33ec5dfa PP |
594 | |
595 | end: | |
33ec5dfa PP |
596 | return notif; |
597 | } | |
598 | ||
599 | static | |
600 | void destroy_dmesg_notif_iter(struct dmesg_notif_iter *dmesg_notif_iter) | |
601 | { | |
602 | if (!dmesg_notif_iter) { | |
603 | return; | |
604 | } | |
605 | ||
606 | if (dmesg_notif_iter->fp && dmesg_notif_iter->fp != stdin) { | |
607 | if (fclose(dmesg_notif_iter->fp)) { | |
608 | BT_LOGE_ERRNO("Cannot close input file", "."); | |
609 | } | |
610 | } | |
d8866baa | 611 | |
65300d60 | 612 | bt_object_put_ref(dmesg_notif_iter->tmp_event_notif); |
33ec5dfa PP |
613 | free(dmesg_notif_iter->linebuf); |
614 | g_free(dmesg_notif_iter); | |
d8866baa PP |
615 | } |
616 | ||
617 | BT_HIDDEN | |
618 | enum bt_notification_iterator_status dmesg_notif_iter_init( | |
90157d89 | 619 | struct bt_private_connection_private_notification_iterator *priv_notif_iter, |
d8866baa PP |
620 | struct bt_private_port *priv_port) |
621 | { | |
33ec5dfa PP |
622 | struct bt_private_component *priv_comp = NULL; |
623 | struct dmesg_component *dmesg_comp; | |
624 | struct dmesg_notif_iter *dmesg_notif_iter = | |
625 | g_new0(struct dmesg_notif_iter, 1); | |
626 | enum bt_notification_iterator_status status = | |
627 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
628 | ||
629 | if (!dmesg_notif_iter) { | |
630 | BT_LOGE_STR("Failed to allocate on dmesg notification iterator structure."); | |
631 | goto error; | |
632 | } | |
633 | ||
90157d89 | 634 | priv_comp = bt_private_connection_private_notification_iterator_get_private_component( |
33ec5dfa | 635 | priv_notif_iter); |
f6ccaed9 | 636 | BT_ASSERT(priv_comp); |
33ec5dfa | 637 | dmesg_comp = bt_private_component_get_user_data(priv_comp); |
f6ccaed9 | 638 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 639 | dmesg_notif_iter->dmesg_comp = dmesg_comp; |
f0010051 | 640 | dmesg_notif_iter->pc_notif_iter = priv_notif_iter; |
d8866baa | 641 | |
33ec5dfa PP |
642 | if (dmesg_comp->params.read_from_stdin) { |
643 | dmesg_notif_iter->fp = stdin; | |
644 | } else { | |
645 | dmesg_notif_iter->fp = fopen(dmesg_comp->params.path->str, "r"); | |
646 | if (!dmesg_notif_iter->fp) { | |
647 | BT_LOGE_ERRNO("Cannot open input file in read mode", ": path=\"%s\"", | |
648 | dmesg_comp->params.path->str); | |
649 | goto error; | |
650 | } | |
651 | } | |
652 | ||
90157d89 | 653 | (void) bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter, |
33ec5dfa PP |
654 | dmesg_notif_iter); |
655 | goto end; | |
656 | ||
657 | error: | |
658 | destroy_dmesg_notif_iter(dmesg_notif_iter); | |
90157d89 | 659 | (void) bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter, |
33ec5dfa PP |
660 | NULL); |
661 | if (status >= 0) { | |
662 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; | |
663 | } | |
664 | ||
665 | end: | |
65300d60 | 666 | bt_object_put_ref(priv_comp); |
33ec5dfa | 667 | return status; |
d8866baa PP |
668 | } |
669 | ||
670 | BT_HIDDEN | |
33ec5dfa | 671 | void dmesg_notif_iter_finalize( |
90157d89 | 672 | struct bt_private_connection_private_notification_iterator *priv_notif_iter) |
d8866baa | 673 | { |
90157d89 | 674 | destroy_dmesg_notif_iter(bt_private_connection_private_notification_iterator_get_user_data( |
33ec5dfa | 675 | priv_notif_iter)); |
d8866baa PP |
676 | } |
677 | ||
d4393e08 PP |
678 | static |
679 | enum bt_notification_iterator_status dmesg_notif_iter_next_one( | |
680 | struct dmesg_notif_iter *dmesg_notif_iter, | |
681 | struct bt_notification **notif) | |
d8866baa | 682 | { |
33ec5dfa | 683 | ssize_t len; |
33ec5dfa | 684 | struct dmesg_component *dmesg_comp; |
d4393e08 PP |
685 | enum bt_notification_iterator_status status = |
686 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
d8866baa | 687 | |
f6ccaed9 | 688 | BT_ASSERT(dmesg_notif_iter); |
33ec5dfa | 689 | dmesg_comp = dmesg_notif_iter->dmesg_comp; |
f6ccaed9 | 690 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 691 | |
312c056a | 692 | if (dmesg_notif_iter->state == STATE_DONE) { |
d4393e08 | 693 | status = BT_NOTIFICATION_ITERATOR_STATUS_END; |
312c056a PP |
694 | goto end; |
695 | } | |
696 | ||
697 | if (dmesg_notif_iter->tmp_event_notif || | |
698 | dmesg_notif_iter->state == STATE_EMIT_PACKET_END || | |
699 | dmesg_notif_iter->state == STATE_EMIT_STREAM_END) { | |
700 | goto handle_state; | |
701 | } | |
702 | ||
33ec5dfa PP |
703 | while (true) { |
704 | const char *ch; | |
705 | bool only_spaces = true; | |
706 | ||
707 | len = bt_getline(&dmesg_notif_iter->linebuf, | |
708 | &dmesg_notif_iter->linebuf_len, dmesg_notif_iter->fp); | |
709 | if (len < 0) { | |
710 | if (errno == EINVAL) { | |
d4393e08 | 711 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa | 712 | } else if (errno == ENOMEM) { |
d4393e08 | 713 | status = |
33ec5dfa PP |
714 | BT_NOTIFICATION_ITERATOR_STATUS_NOMEM; |
715 | } else { | |
312c056a PP |
716 | if (dmesg_notif_iter->state == STATE_EMIT_STREAM_BEGINNING) { |
717 | /* Stream did not even begin */ | |
d4393e08 | 718 | status = BT_NOTIFICATION_ITERATOR_STATUS_END; |
312c056a PP |
719 | goto end; |
720 | } else { | |
721 | /* End current packet now */ | |
722 | dmesg_notif_iter->state = | |
723 | STATE_EMIT_PACKET_END; | |
724 | goto handle_state; | |
725 | } | |
33ec5dfa PP |
726 | } |
727 | ||
728 | goto end; | |
729 | } | |
730 | ||
f6ccaed9 | 731 | BT_ASSERT(dmesg_notif_iter->linebuf); |
33ec5dfa PP |
732 | |
733 | /* Ignore empty lines, once trimmed */ | |
734 | for (ch = dmesg_notif_iter->linebuf; *ch != '\0'; ch++) { | |
735 | if (!isspace(*ch)) { | |
736 | only_spaces = false; | |
737 | break; | |
738 | } | |
739 | } | |
740 | ||
741 | if (!only_spaces) { | |
742 | break; | |
743 | } | |
744 | } | |
745 | ||
f0010051 PP |
746 | dmesg_notif_iter->tmp_event_notif = create_notif_from_line( |
747 | dmesg_notif_iter, dmesg_notif_iter->linebuf); | |
312c056a | 748 | if (!dmesg_notif_iter->tmp_event_notif) { |
33ec5dfa PP |
749 | BT_LOGE("Cannot create event notification from line: " |
750 | "dmesg-comp-addr=%p, line=\"%s\"", dmesg_comp, | |
751 | dmesg_notif_iter->linebuf); | |
312c056a PP |
752 | goto end; |
753 | } | |
754 | ||
755 | handle_state: | |
756 | BT_ASSERT(dmesg_comp->trace); | |
757 | ||
758 | switch (dmesg_notif_iter->state) { | |
759 | case STATE_EMIT_STREAM_BEGINNING: | |
760 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
d4393e08 | 761 | *notif = bt_notification_stream_begin_create( |
f0010051 | 762 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->stream); |
312c056a PP |
763 | dmesg_notif_iter->state = STATE_EMIT_PACKET_BEGINNING; |
764 | break; | |
765 | case STATE_EMIT_PACKET_BEGINNING: | |
766 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
d4393e08 | 767 | *notif = bt_notification_packet_begin_create( |
f0010051 | 768 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->packet); |
312c056a PP |
769 | dmesg_notif_iter->state = STATE_EMIT_EVENT; |
770 | break; | |
771 | case STATE_EMIT_EVENT: | |
772 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
d4393e08 PP |
773 | *notif = dmesg_notif_iter->tmp_event_notif; |
774 | dmesg_notif_iter->tmp_event_notif = NULL; | |
312c056a PP |
775 | break; |
776 | case STATE_EMIT_PACKET_END: | |
d4393e08 | 777 | *notif = bt_notification_packet_end_create( |
f0010051 | 778 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->packet); |
312c056a PP |
779 | dmesg_notif_iter->state = STATE_EMIT_STREAM_END; |
780 | break; | |
781 | case STATE_EMIT_STREAM_END: | |
d4393e08 | 782 | *notif = bt_notification_stream_end_create( |
f0010051 | 783 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->stream); |
312c056a PP |
784 | dmesg_notif_iter->state = STATE_DONE; |
785 | break; | |
786 | default: | |
787 | break; | |
788 | } | |
789 | ||
d4393e08 | 790 | if (!*notif) { |
312c056a PP |
791 | BT_LOGE("Cannot create notification: dmesg-comp-addr=%p", |
792 | dmesg_comp); | |
d4393e08 | 793 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa PP |
794 | } |
795 | ||
796 | end: | |
d4393e08 PP |
797 | return status; |
798 | } | |
799 | ||
800 | BT_HIDDEN | |
801 | enum bt_notification_iterator_status dmesg_notif_iter_next( | |
802 | struct bt_private_connection_private_notification_iterator *priv_notif_iter, | |
803 | bt_notification_array notifs, uint64_t capacity, | |
804 | uint64_t *count) | |
805 | { | |
806 | struct dmesg_notif_iter *dmesg_notif_iter = | |
807 | bt_private_connection_private_notification_iterator_get_user_data( | |
808 | priv_notif_iter); | |
809 | enum bt_notification_iterator_status status = | |
810 | BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
811 | uint64_t i = 0; | |
812 | ||
813 | while (i < capacity && status == BT_NOTIFICATION_ITERATOR_STATUS_OK) { | |
814 | status = dmesg_notif_iter_next_one(dmesg_notif_iter, ¬ifs[i]); | |
815 | if (status == BT_NOTIFICATION_ITERATOR_STATUS_OK) { | |
816 | i++; | |
817 | } | |
818 | } | |
819 | ||
820 | if (i > 0) { | |
821 | /* | |
822 | * Even if dmesg_notif_iter_next_one() returned | |
823 | * something else than | |
824 | * BT_NOTIFICATION_ITERATOR_STATUS_OK, we accumulated | |
825 | * notification objects in the output notification | |
826 | * array, so we need to return | |
827 | * BT_NOTIFICATION_ITERATOR_STATUS_OK so that they are | |
828 | * transfered to downstream. This other status occurs | |
829 | * again the next time muxer_notif_iter_do_next() is | |
830 | * called, possibly without any accumulated | |
831 | * notification, in which case we'll return it. | |
832 | */ | |
833 | *count = i; | |
834 | status = BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
835 | } | |
836 | ||
837 | return status; | |
d8866baa | 838 | } |