Commit | Line | Data |
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d8866baa PP |
1 | /* |
2 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation | |
d94d92ac | 3 | * Copyright 2017 Philippe Proulx <pproulx@efficios.com> |
d8866baa PP |
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 | 33 | #include <babeltrace/babeltrace.h> |
c6bd8523 | 34 | #include <babeltrace/value-internal.h> |
33ec5dfa PP |
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; | |
b19ff26f | 48 | bt_self_notification_iterator *pc_notif_iter; /* Weak */ |
33ec5dfa PP |
49 | char *linebuf; |
50 | size_t linebuf_len; | |
d8866baa | 51 | FILE *fp; |
b19ff26f | 52 | bt_notification *tmp_event_notif; |
312c056a PP |
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 | ||
b19ff26f PP |
71 | bt_trace_class *trace_class; |
72 | bt_stream_class *stream_class; | |
73 | bt_event_class *event_class; | |
74 | bt_trace *trace; | |
75 | bt_stream *stream; | |
76 | bt_packet *packet; | |
77 | bt_clock_class *clock_class; | |
d8866baa PP |
78 | }; |
79 | ||
33ec5dfa | 80 | static |
b19ff26f | 81 | bt_field_class *create_event_payload_fc(void) |
33ec5dfa | 82 | { |
b19ff26f PP |
83 | bt_field_class *root_fc = NULL; |
84 | bt_field_class *fc = NULL; | |
33ec5dfa PP |
85 | int ret; |
86 | ||
40f4ba76 | 87 | root_fc = bt_field_class_structure_create(); |
5cd6d0e5 PP |
88 | if (!root_fc) { |
89 | BT_LOGE_STR("Cannot create an empty structure field class object."); | |
33ec5dfa PP |
90 | goto error; |
91 | } | |
92 | ||
40f4ba76 | 93 | fc = bt_field_class_string_create(); |
5cd6d0e5 PP |
94 | if (!fc) { |
95 | BT_LOGE_STR("Cannot create a string field class object."); | |
33ec5dfa PP |
96 | goto error; |
97 | } | |
98 | ||
40f4ba76 | 99 | ret = bt_field_class_structure_append_member(root_fc, |
e5be10ef | 100 | "str", fc); |
33ec5dfa | 101 | if (ret) { |
5cd6d0e5 | 102 | BT_LOGE("Cannot add `str` member to structure field class: " |
33ec5dfa PP |
103 | "ret=%d", ret); |
104 | goto error; | |
105 | } | |
106 | ||
107 | goto end; | |
108 | ||
109 | error: | |
c5b9b441 | 110 | BT_FIELD_CLASS_PUT_REF_AND_RESET(root_fc); |
33ec5dfa PP |
111 | |
112 | end: | |
c5b9b441 | 113 | bt_field_class_put_ref(fc); |
5cd6d0e5 | 114 | return root_fc; |
33ec5dfa PP |
115 | } |
116 | ||
33ec5dfa PP |
117 | static |
118 | int create_meta(struct dmesg_component *dmesg_comp, bool has_ts) | |
119 | { | |
b19ff26f | 120 | bt_field_class *fc = NULL; |
d8866baa PP |
121 | int ret = 0; |
122 | ||
862ca4ed PP |
123 | dmesg_comp->trace_class = bt_trace_class_create(); |
124 | if (!dmesg_comp->trace_class) { | |
125 | BT_LOGE_STR("Cannot create an empty trace class object."); | |
33ec5dfa PP |
126 | goto error; |
127 | } | |
128 | ||
40f4ba76 | 129 | dmesg_comp->stream_class = bt_stream_class_create( |
862ca4ed | 130 | dmesg_comp->trace_class); |
33ec5dfa | 131 | if (!dmesg_comp->stream_class) { |
44c440bc | 132 | BT_LOGE_STR("Cannot create a stream class object."); |
33ec5dfa PP |
133 | goto error; |
134 | } | |
135 | ||
33ec5dfa | 136 | if (has_ts) { |
40f4ba76 | 137 | dmesg_comp->clock_class = bt_clock_class_create(); |
33ec5dfa PP |
138 | if (!dmesg_comp->clock_class) { |
139 | BT_LOGE_STR("Cannot create clock class."); | |
140 | goto error; | |
141 | } | |
142 | ||
40f4ba76 PP |
143 | ret = bt_stream_class_set_default_clock_class( |
144 | dmesg_comp->stream_class, dmesg_comp->clock_class); | |
33ec5dfa | 145 | if (ret) { |
44c440bc | 146 | BT_LOGE_STR("Cannot set stream class's default clock class."); |
33ec5dfa PP |
147 | goto error; |
148 | } | |
149 | } | |
150 | ||
40f4ba76 | 151 | dmesg_comp->event_class = bt_event_class_create( |
44c440bc | 152 | dmesg_comp->stream_class); |
33ec5dfa | 153 | if (!dmesg_comp->event_class) { |
44c440bc PP |
154 | BT_LOGE_STR("Cannot create an event class object."); |
155 | goto error; | |
156 | } | |
157 | ||
40f4ba76 | 158 | ret = bt_event_class_set_name(dmesg_comp->event_class, "string"); |
44c440bc PP |
159 | if (ret) { |
160 | BT_LOGE_STR("Cannot set event class's name."); | |
33ec5dfa PP |
161 | goto error; |
162 | } | |
163 | ||
5cd6d0e5 PP |
164 | fc = create_event_payload_fc(); |
165 | if (!fc) { | |
166 | BT_LOGE_STR("Cannot create event payload field class."); | |
d8866baa PP |
167 | goto error; |
168 | } | |
169 | ||
40f4ba76 | 170 | ret = bt_event_class_set_payload_field_class(dmesg_comp->event_class, fc); |
33ec5dfa | 171 | if (ret) { |
5cd6d0e5 | 172 | BT_LOGE_STR("Cannot set event class's event payload field class."); |
33ec5dfa PP |
173 | goto error; |
174 | } | |
175 | ||
33ec5dfa PP |
176 | goto end; |
177 | ||
178 | error: | |
179 | ret = -1; | |
180 | ||
181 | end: | |
c5b9b441 | 182 | bt_field_class_put_ref(fc); |
33ec5dfa PP |
183 | return ret; |
184 | } | |
185 | ||
186 | static | |
05e21286 | 187 | int handle_params(struct dmesg_component *dmesg_comp, |
b19ff26f | 188 | const bt_value *params) |
33ec5dfa | 189 | { |
b19ff26f PP |
190 | const bt_value *no_timestamp = NULL; |
191 | const bt_value *path = NULL; | |
33ec5dfa PP |
192 | const char *path_str; |
193 | int ret = 0; | |
194 | ||
05e21286 | 195 | no_timestamp = bt_value_map_borrow_entry_value_const(params, |
07208d85 | 196 | "no-extract-timestamp"); |
707b323a PP |
197 | if (no_timestamp) { |
198 | if (!bt_value_is_bool(no_timestamp)) { | |
199 | BT_LOGE("Expecting a boolean value for the `no-extract-timestamp` parameter: " | |
200 | "type=%s", | |
da91b29a | 201 | bt_common_value_type_string( |
707b323a PP |
202 | bt_value_get_type(no_timestamp))); |
203 | goto error; | |
204 | } | |
205 | ||
601b0d3c PP |
206 | dmesg_comp->params.no_timestamp = |
207 | bt_value_bool_get(no_timestamp); | |
707b323a PP |
208 | } |
209 | ||
05e21286 | 210 | path = bt_value_map_borrow_entry_value_const(params, "path"); |
d8866baa PP |
211 | if (path) { |
212 | if (dmesg_comp->params.read_from_stdin) { | |
33ec5dfa | 213 | BT_LOGE_STR("Cannot specify both `read-from-stdin` and `path` parameters."); |
d8866baa PP |
214 | goto error; |
215 | } | |
216 | ||
217 | if (!bt_value_is_string(path)) { | |
33ec5dfa PP |
218 | BT_LOGE("Expecting a string value for the `path` parameter: " |
219 | "type=%s", | |
da91b29a | 220 | bt_common_value_type_string( |
33ec5dfa | 221 | bt_value_get_type(path))); |
d8866baa PP |
222 | goto error; |
223 | } | |
224 | ||
601b0d3c | 225 | path_str = bt_value_string_get(path); |
d8866baa PP |
226 | g_string_assign(dmesg_comp->params.path, path_str); |
227 | } else { | |
4da23e31 | 228 | dmesg_comp->params.read_from_stdin = true; |
d8866baa PP |
229 | } |
230 | ||
231 | goto end; | |
232 | ||
233 | error: | |
234 | ret = -1; | |
235 | ||
236 | end: | |
d8866baa PP |
237 | return ret; |
238 | } | |
239 | ||
33ec5dfa | 240 | static |
862ca4ed | 241 | int create_packet_and_stream_and_trace(struct dmesg_component *dmesg_comp) |
33ec5dfa PP |
242 | { |
243 | int ret = 0; | |
862ca4ed PP |
244 | const char *trace_name; |
245 | gchar *basename = NULL; | |
246 | ||
247 | dmesg_comp->trace = bt_trace_create(dmesg_comp->trace_class); | |
248 | if (!dmesg_comp->trace) { | |
249 | BT_LOGE_STR("Cannot create trace object."); | |
250 | goto error; | |
251 | } | |
33ec5dfa | 252 | |
862ca4ed PP |
253 | if (dmesg_comp->params.read_from_stdin) { |
254 | trace_name = "STDIN"; | |
255 | } else { | |
256 | basename = g_path_get_basename(dmesg_comp->params.path->str); | |
257 | BT_ASSERT(basename); | |
258 | ||
259 | if (strcmp(basename, G_DIR_SEPARATOR_S) != 0 && | |
260 | strcmp(basename, ".") != 0) { | |
261 | trace_name = basename; | |
262 | } | |
263 | } | |
264 | ||
265 | if (trace_name) { | |
266 | ret = bt_trace_set_name(dmesg_comp->trace, trace_name); | |
267 | if (ret) { | |
268 | BT_LOGE("Cannot set trace's name: name=\"%s\"", | |
269 | trace_name); | |
270 | goto error; | |
271 | } | |
272 | } | |
273 | ||
274 | dmesg_comp->stream = bt_stream_create(dmesg_comp->stream_class, | |
275 | dmesg_comp->trace); | |
33ec5dfa PP |
276 | if (!dmesg_comp->stream) { |
277 | BT_LOGE_STR("Cannot create stream object."); | |
278 | goto error; | |
279 | } | |
280 | ||
40f4ba76 | 281 | dmesg_comp->packet = bt_packet_create(dmesg_comp->stream); |
33ec5dfa PP |
282 | if (!dmesg_comp->packet) { |
283 | BT_LOGE_STR("Cannot create packet object."); | |
284 | goto error; | |
285 | } | |
286 | ||
40f4ba76 | 287 | ret = bt_trace_make_static(dmesg_comp->trace); |
33ec5dfa PP |
288 | if (ret) { |
289 | BT_LOGE_STR("Cannot make trace static."); | |
290 | goto error; | |
291 | } | |
292 | ||
293 | goto end; | |
294 | ||
295 | error: | |
296 | ret = -1; | |
297 | ||
298 | end: | |
862ca4ed PP |
299 | if (basename) { |
300 | g_free(basename); | |
301 | } | |
302 | ||
33ec5dfa PP |
303 | return ret; |
304 | } | |
305 | ||
306 | static | |
307 | int try_create_meta_stream_packet(struct dmesg_component *dmesg_comp, | |
308 | bool has_ts) | |
309 | { | |
310 | int ret = 0; | |
311 | ||
312 | if (dmesg_comp->trace) { | |
313 | /* Already created */ | |
314 | goto end; | |
315 | } | |
316 | ||
317 | ret = create_meta(dmesg_comp, has_ts); | |
318 | if (ret) { | |
319 | BT_LOGE("Cannot create metadata objects: dmesg-comp-addr=%p", | |
320 | dmesg_comp); | |
321 | goto error; | |
322 | } | |
323 | ||
862ca4ed | 324 | ret = create_packet_and_stream_and_trace(dmesg_comp); |
33ec5dfa PP |
325 | if (ret) { |
326 | BT_LOGE("Cannot create packet and stream objects: " | |
327 | "dmesg-comp-addr=%p", dmesg_comp); | |
328 | goto error; | |
329 | } | |
330 | ||
331 | goto end; | |
332 | ||
333 | error: | |
334 | ret = -1; | |
335 | ||
336 | end: | |
337 | return ret; | |
338 | } | |
d8866baa PP |
339 | |
340 | static | |
341 | void destroy_dmesg_component(struct dmesg_component *dmesg_comp) | |
342 | { | |
343 | if (!dmesg_comp) { | |
344 | return; | |
345 | } | |
346 | ||
347 | if (dmesg_comp->params.path) { | |
348 | g_string_free(dmesg_comp->params.path, TRUE); | |
349 | } | |
350 | ||
c5b9b441 PP |
351 | bt_packet_put_ref(dmesg_comp->packet); |
352 | bt_trace_put_ref(dmesg_comp->trace); | |
353 | bt_stream_class_put_ref(dmesg_comp->stream_class); | |
354 | bt_event_class_put_ref(dmesg_comp->event_class); | |
355 | bt_stream_put_ref(dmesg_comp->stream); | |
356 | bt_clock_class_put_ref(dmesg_comp->clock_class); | |
d8866baa PP |
357 | g_free(dmesg_comp); |
358 | } | |
359 | ||
33ec5dfa | 360 | static |
d94d92ac | 361 | enum bt_self_component_status create_port( |
b19ff26f | 362 | bt_self_component_source *self_comp) |
33ec5dfa | 363 | { |
d94d92ac | 364 | return bt_self_component_source_add_output_port(self_comp, |
33ec5dfa PP |
365 | "out", NULL, NULL); |
366 | } | |
367 | ||
d8866baa | 368 | BT_HIDDEN |
d94d92ac | 369 | enum bt_self_component_status dmesg_init( |
b19ff26f PP |
370 | bt_self_component_source *self_comp, |
371 | bt_value *params, void *init_method_data) | |
d8866baa PP |
372 | { |
373 | int ret = 0; | |
374 | struct dmesg_component *dmesg_comp = g_new0(struct dmesg_component, 1); | |
d94d92ac | 375 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
d8866baa PP |
376 | |
377 | if (!dmesg_comp) { | |
33ec5dfa | 378 | BT_LOGE_STR("Failed to allocate one dmesg component structure."); |
d8866baa PP |
379 | goto error; |
380 | } | |
381 | ||
382 | dmesg_comp->params.path = g_string_new(NULL); | |
383 | if (!dmesg_comp->params.path) { | |
33ec5dfa | 384 | BT_LOGE_STR("Failed to allocate a GString."); |
d8866baa PP |
385 | goto error; |
386 | } | |
387 | ||
33ec5dfa | 388 | ret = handle_params(dmesg_comp, params); |
d8866baa | 389 | if (ret) { |
d94d92ac | 390 | BT_LOGE("Invalid parameters: comp-addr=%p", self_comp); |
d8866baa PP |
391 | goto error; |
392 | } | |
393 | ||
33ec5dfa PP |
394 | if (!dmesg_comp->params.read_from_stdin && |
395 | !g_file_test(dmesg_comp->params.path->str, | |
396 | G_FILE_TEST_IS_REGULAR)) { | |
397 | BT_LOGE("Input path is not a regular file: " | |
d94d92ac | 398 | "comp-addr=%p, path=\"%s\"", self_comp, |
33ec5dfa PP |
399 | dmesg_comp->params.path->str); |
400 | goto error; | |
401 | } | |
d8866baa | 402 | |
d94d92ac PP |
403 | status = create_port(self_comp); |
404 | if (status != BT_SELF_COMPONENT_STATUS_OK) { | |
33ec5dfa PP |
405 | goto error; |
406 | } | |
d8866baa | 407 | |
d94d92ac | 408 | bt_self_component_set_data( |
707b7d35 | 409 | bt_self_component_source_as_self_component(self_comp), |
d94d92ac | 410 | dmesg_comp); |
d8866baa PP |
411 | goto end; |
412 | ||
413 | error: | |
414 | destroy_dmesg_component(dmesg_comp); | |
d94d92ac | 415 | bt_self_component_set_data( |
707b7d35 | 416 | bt_self_component_source_as_self_component(self_comp), |
d94d92ac | 417 | NULL); |
33ec5dfa PP |
418 | |
419 | if (status >= 0) { | |
d94d92ac | 420 | status = BT_SELF_COMPONENT_STATUS_ERROR; |
33ec5dfa | 421 | } |
d8866baa PP |
422 | |
423 | end: | |
424 | return status; | |
425 | } | |
426 | ||
427 | BT_HIDDEN | |
b19ff26f | 428 | void dmesg_finalize(bt_self_component_source *self_comp) |
d8866baa | 429 | { |
d94d92ac | 430 | destroy_dmesg_component(bt_self_component_get_data( |
707b7d35 | 431 | bt_self_component_source_as_self_component(self_comp))); |
33ec5dfa PP |
432 | } |
433 | ||
434 | static | |
b19ff26f | 435 | bt_notification *create_init_event_notif_from_line( |
f0010051 | 436 | struct dmesg_notif_iter *notif_iter, |
312c056a | 437 | const char *line, const char **new_start) |
33ec5dfa | 438 | { |
b19ff26f PP |
439 | bt_event *event; |
440 | bt_notification *notif = NULL; | |
33ec5dfa PP |
441 | bool has_timestamp = false; |
442 | unsigned long sec, usec, msec; | |
443 | unsigned int year, mon, mday, hour, min; | |
444 | uint64_t ts = 0; | |
33ec5dfa | 445 | int ret = 0; |
f0010051 | 446 | struct dmesg_component *dmesg_comp = notif_iter->dmesg_comp; |
33ec5dfa | 447 | |
33ec5dfa PP |
448 | *new_start = line; |
449 | ||
707b323a PP |
450 | if (dmesg_comp->params.no_timestamp) { |
451 | goto skip_ts; | |
452 | } | |
453 | ||
33ec5dfa PP |
454 | /* Extract time from input line */ |
455 | if (sscanf(line, "[%lu.%lu] ", &sec, &usec) == 2) { | |
456 | ts = (uint64_t) sec * USEC_PER_SEC + (uint64_t) usec; | |
457 | ||
458 | /* | |
459 | * The clock class we use has a 1 GHz frequency: convert | |
460 | * from µs to ns. | |
461 | */ | |
462 | ts *= NSEC_PER_USEC; | |
463 | has_timestamp = true; | |
464 | } else if (sscanf(line, "[%u-%u-%u %u:%u:%lu.%lu] ", | |
465 | &year, &mon, &mday, &hour, &min, | |
466 | &sec, &msec) == 7) { | |
467 | time_t ep_sec; | |
468 | struct tm ti; | |
469 | ||
470 | memset(&ti, 0, sizeof(ti)); | |
471 | ti.tm_year = year - 1900; /* From 1900 */ | |
472 | ti.tm_mon = mon - 1; /* 0 to 11 */ | |
473 | ti.tm_mday = mday; | |
474 | ti.tm_hour = hour; | |
475 | ti.tm_min = min; | |
476 | ti.tm_sec = sec; | |
477 | ||
478 | ep_sec = bt_timegm(&ti); | |
479 | if (ep_sec != (time_t) -1) { | |
480 | ts = (uint64_t) ep_sec * NSEC_PER_SEC | |
481 | + (uint64_t) msec * NSEC_PER_MSEC; | |
482 | } | |
483 | ||
484 | has_timestamp = true; | |
485 | } | |
486 | ||
487 | if (has_timestamp) { | |
488 | /* Set new start for the message portion of the line */ | |
489 | *new_start = strchr(line, ']'); | |
f6ccaed9 | 490 | BT_ASSERT(*new_start); |
33ec5dfa PP |
491 | (*new_start)++; |
492 | ||
493 | if ((*new_start)[0] == ' ') { | |
494 | (*new_start)++; | |
495 | } | |
496 | } | |
497 | ||
707b323a | 498 | skip_ts: |
33ec5dfa PP |
499 | /* |
500 | * At this point, we know if the stream class's event header | |
5cd6d0e5 | 501 | * field class should have a timestamp or not, so we can lazily |
33ec5dfa PP |
502 | * create the metadata, stream, and packet objects. |
503 | */ | |
504 | ret = try_create_meta_stream_packet(dmesg_comp, has_timestamp); | |
505 | if (ret) { | |
506 | /* try_create_meta_stream_packet() logs errors */ | |
507 | goto error; | |
508 | } | |
509 | ||
0d72b8c3 | 510 | notif = bt_notification_event_create(notif_iter->pc_notif_iter, |
e22b45d0 | 511 | dmesg_comp->event_class, dmesg_comp->packet); |
312c056a PP |
512 | if (!notif) { |
513 | BT_LOGE_STR("Cannot create event notification."); | |
514 | goto error; | |
515 | } | |
33ec5dfa | 516 | |
0d72b8c3 | 517 | event = bt_notification_event_borrow_event(notif); |
312c056a | 518 | BT_ASSERT(event); |
33ec5dfa | 519 | |
312c056a | 520 | if (dmesg_comp->clock_class) { |
40f4ba76 | 521 | bt_event_set_default_clock_value(event, ts); |
33ec5dfa PP |
522 | } |
523 | ||
524 | goto end; | |
525 | ||
526 | error: | |
c5b9b441 | 527 | BT_NOTIFICATION_PUT_REF_AND_RESET(notif); |
33ec5dfa PP |
528 | |
529 | end: | |
312c056a | 530 | return notif; |
33ec5dfa PP |
531 | } |
532 | ||
533 | static | |
e5be10ef | 534 | int fill_event_payload_from_line(const char *line, |
b19ff26f | 535 | bt_event *event) |
33ec5dfa | 536 | { |
b19ff26f PP |
537 | bt_field *ep_field = NULL; |
538 | bt_field *str_field = NULL; | |
33ec5dfa PP |
539 | size_t len; |
540 | int ret; | |
541 | ||
40f4ba76 | 542 | ep_field = bt_event_borrow_payload_field(event); |
312c056a | 543 | BT_ASSERT(ep_field); |
40f4ba76 | 544 | str_field = bt_field_structure_borrow_member_field_by_index( |
e5be10ef | 545 | ep_field, 0); |
33ec5dfa | 546 | if (!str_field) { |
312c056a | 547 | BT_LOGE_STR("Cannot borrow `timestamp` field from event payload structure field."); |
33ec5dfa PP |
548 | goto error; |
549 | } | |
550 | ||
551 | len = strlen(line); | |
552 | if (line[len - 1] == '\n') { | |
553 | /* Do not include the newline character in the payload */ | |
554 | len--; | |
555 | } | |
556 | ||
40f4ba76 | 557 | ret = bt_field_string_clear(str_field); |
312c056a PP |
558 | if (ret) { |
559 | BT_LOGE_STR("Cannot clear string field object."); | |
560 | goto error; | |
561 | } | |
562 | ||
40f4ba76 | 563 | ret = bt_field_string_append_with_length(str_field, line, len); |
33ec5dfa PP |
564 | if (ret) { |
565 | BT_LOGE("Cannot append value to string field object: " | |
566 | "len=%zu", len); | |
567 | goto error; | |
568 | } | |
569 | ||
33ec5dfa PP |
570 | goto end; |
571 | ||
572 | error: | |
573 | ret = -1; | |
574 | ||
575 | end: | |
33ec5dfa PP |
576 | return ret; |
577 | } | |
578 | ||
579 | static | |
b19ff26f | 580 | bt_notification *create_notif_from_line( |
f0010051 | 581 | struct dmesg_notif_iter *dmesg_notif_iter, const char *line) |
33ec5dfa | 582 | { |
b19ff26f PP |
583 | bt_event *event = NULL; |
584 | bt_notification *notif = NULL; | |
33ec5dfa PP |
585 | const char *new_start; |
586 | int ret; | |
587 | ||
f0010051 PP |
588 | notif = create_init_event_notif_from_line(dmesg_notif_iter, |
589 | line, &new_start); | |
312c056a PP |
590 | if (!notif) { |
591 | BT_LOGE_STR("Cannot create and initialize event notification from line."); | |
33ec5dfa PP |
592 | goto error; |
593 | } | |
594 | ||
0d72b8c3 | 595 | event = bt_notification_event_borrow_event(notif); |
312c056a | 596 | BT_ASSERT(event); |
f0010051 | 597 | ret = fill_event_payload_from_line(new_start, event); |
33ec5dfa | 598 | if (ret) { |
312c056a | 599 | BT_LOGE("Cannot fill event payload field from line: " |
33ec5dfa PP |
600 | "ret=%d", ret); |
601 | goto error; | |
602 | } | |
603 | ||
33ec5dfa PP |
604 | goto end; |
605 | ||
606 | error: | |
c5b9b441 | 607 | BT_NOTIFICATION_PUT_REF_AND_RESET(notif); |
33ec5dfa PP |
608 | |
609 | end: | |
33ec5dfa PP |
610 | return notif; |
611 | } | |
612 | ||
613 | static | |
614 | void destroy_dmesg_notif_iter(struct dmesg_notif_iter *dmesg_notif_iter) | |
615 | { | |
616 | if (!dmesg_notif_iter) { | |
617 | return; | |
618 | } | |
619 | ||
620 | if (dmesg_notif_iter->fp && dmesg_notif_iter->fp != stdin) { | |
621 | if (fclose(dmesg_notif_iter->fp)) { | |
622 | BT_LOGE_ERRNO("Cannot close input file", "."); | |
623 | } | |
624 | } | |
d8866baa | 625 | |
c5b9b441 | 626 | bt_notification_put_ref(dmesg_notif_iter->tmp_event_notif); |
33ec5dfa PP |
627 | free(dmesg_notif_iter->linebuf); |
628 | g_free(dmesg_notif_iter); | |
d8866baa PP |
629 | } |
630 | ||
631 | BT_HIDDEN | |
d94d92ac | 632 | enum bt_self_notification_iterator_status dmesg_notif_iter_init( |
b19ff26f PP |
633 | bt_self_notification_iterator *self_notif_iter, |
634 | bt_self_component_source *self_comp, | |
635 | bt_self_component_port_output *self_port) | |
d8866baa | 636 | { |
33ec5dfa PP |
637 | struct dmesg_component *dmesg_comp; |
638 | struct dmesg_notif_iter *dmesg_notif_iter = | |
639 | g_new0(struct dmesg_notif_iter, 1); | |
d94d92ac PP |
640 | enum bt_self_notification_iterator_status status = |
641 | BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK; | |
33ec5dfa PP |
642 | |
643 | if (!dmesg_notif_iter) { | |
644 | BT_LOGE_STR("Failed to allocate on dmesg notification iterator structure."); | |
645 | goto error; | |
646 | } | |
647 | ||
d94d92ac | 648 | dmesg_comp = bt_self_component_get_data( |
707b7d35 | 649 | bt_self_component_source_as_self_component(self_comp)); |
f6ccaed9 | 650 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 651 | dmesg_notif_iter->dmesg_comp = dmesg_comp; |
d94d92ac | 652 | dmesg_notif_iter->pc_notif_iter = self_notif_iter; |
d8866baa | 653 | |
33ec5dfa PP |
654 | if (dmesg_comp->params.read_from_stdin) { |
655 | dmesg_notif_iter->fp = stdin; | |
656 | } else { | |
657 | dmesg_notif_iter->fp = fopen(dmesg_comp->params.path->str, "r"); | |
658 | if (!dmesg_notif_iter->fp) { | |
659 | BT_LOGE_ERRNO("Cannot open input file in read mode", ": path=\"%s\"", | |
660 | dmesg_comp->params.path->str); | |
661 | goto error; | |
662 | } | |
663 | } | |
664 | ||
d94d92ac | 665 | bt_self_notification_iterator_set_data(self_notif_iter, |
33ec5dfa PP |
666 | dmesg_notif_iter); |
667 | goto end; | |
668 | ||
669 | error: | |
670 | destroy_dmesg_notif_iter(dmesg_notif_iter); | |
d94d92ac | 671 | bt_self_notification_iterator_set_data(self_notif_iter, NULL); |
33ec5dfa | 672 | if (status >= 0) { |
d94d92ac | 673 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa PP |
674 | } |
675 | ||
676 | end: | |
33ec5dfa | 677 | return status; |
d8866baa PP |
678 | } |
679 | ||
680 | BT_HIDDEN | |
33ec5dfa | 681 | void dmesg_notif_iter_finalize( |
b19ff26f | 682 | bt_self_notification_iterator *priv_notif_iter) |
d8866baa | 683 | { |
d94d92ac | 684 | destroy_dmesg_notif_iter(bt_self_notification_iterator_get_data( |
33ec5dfa | 685 | priv_notif_iter)); |
d8866baa PP |
686 | } |
687 | ||
d4393e08 | 688 | static |
d94d92ac | 689 | enum bt_self_notification_iterator_status dmesg_notif_iter_next_one( |
d4393e08 | 690 | struct dmesg_notif_iter *dmesg_notif_iter, |
b19ff26f | 691 | bt_notification **notif) |
d8866baa | 692 | { |
33ec5dfa | 693 | ssize_t len; |
33ec5dfa | 694 | struct dmesg_component *dmesg_comp; |
d94d92ac PP |
695 | enum bt_self_notification_iterator_status status = |
696 | BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK; | |
d8866baa | 697 | |
f6ccaed9 | 698 | BT_ASSERT(dmesg_notif_iter); |
33ec5dfa | 699 | dmesg_comp = dmesg_notif_iter->dmesg_comp; |
f6ccaed9 | 700 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 701 | |
312c056a | 702 | if (dmesg_notif_iter->state == STATE_DONE) { |
d94d92ac | 703 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_END; |
312c056a PP |
704 | goto end; |
705 | } | |
706 | ||
707 | if (dmesg_notif_iter->tmp_event_notif || | |
708 | dmesg_notif_iter->state == STATE_EMIT_PACKET_END || | |
709 | dmesg_notif_iter->state == STATE_EMIT_STREAM_END) { | |
710 | goto handle_state; | |
711 | } | |
712 | ||
33ec5dfa PP |
713 | while (true) { |
714 | const char *ch; | |
715 | bool only_spaces = true; | |
716 | ||
717 | len = bt_getline(&dmesg_notif_iter->linebuf, | |
718 | &dmesg_notif_iter->linebuf_len, dmesg_notif_iter->fp); | |
719 | if (len < 0) { | |
720 | if (errno == EINVAL) { | |
d94d92ac | 721 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa | 722 | } else if (errno == ENOMEM) { |
d4393e08 | 723 | status = |
d94d92ac | 724 | BT_SELF_NOTIFICATION_ITERATOR_STATUS_NOMEM; |
33ec5dfa | 725 | } else { |
312c056a PP |
726 | if (dmesg_notif_iter->state == STATE_EMIT_STREAM_BEGINNING) { |
727 | /* Stream did not even begin */ | |
d94d92ac | 728 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_END; |
312c056a PP |
729 | goto end; |
730 | } else { | |
731 | /* End current packet now */ | |
732 | dmesg_notif_iter->state = | |
733 | STATE_EMIT_PACKET_END; | |
734 | goto handle_state; | |
735 | } | |
33ec5dfa PP |
736 | } |
737 | ||
738 | goto end; | |
739 | } | |
740 | ||
f6ccaed9 | 741 | BT_ASSERT(dmesg_notif_iter->linebuf); |
33ec5dfa PP |
742 | |
743 | /* Ignore empty lines, once trimmed */ | |
744 | for (ch = dmesg_notif_iter->linebuf; *ch != '\0'; ch++) { | |
745 | if (!isspace(*ch)) { | |
746 | only_spaces = false; | |
747 | break; | |
748 | } | |
749 | } | |
750 | ||
751 | if (!only_spaces) { | |
752 | break; | |
753 | } | |
754 | } | |
755 | ||
f0010051 PP |
756 | dmesg_notif_iter->tmp_event_notif = create_notif_from_line( |
757 | dmesg_notif_iter, dmesg_notif_iter->linebuf); | |
312c056a | 758 | if (!dmesg_notif_iter->tmp_event_notif) { |
33ec5dfa PP |
759 | BT_LOGE("Cannot create event notification from line: " |
760 | "dmesg-comp-addr=%p, line=\"%s\"", dmesg_comp, | |
761 | dmesg_notif_iter->linebuf); | |
312c056a PP |
762 | goto end; |
763 | } | |
764 | ||
765 | handle_state: | |
766 | BT_ASSERT(dmesg_comp->trace); | |
767 | ||
768 | switch (dmesg_notif_iter->state) { | |
769 | case STATE_EMIT_STREAM_BEGINNING: | |
770 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
bb5bb160 | 771 | *notif = bt_notification_stream_beginning_create( |
f0010051 | 772 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->stream); |
312c056a PP |
773 | dmesg_notif_iter->state = STATE_EMIT_PACKET_BEGINNING; |
774 | break; | |
775 | case STATE_EMIT_PACKET_BEGINNING: | |
776 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
bb5bb160 | 777 | *notif = bt_notification_packet_beginning_create( |
f0010051 | 778 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->packet); |
312c056a PP |
779 | dmesg_notif_iter->state = STATE_EMIT_EVENT; |
780 | break; | |
781 | case STATE_EMIT_EVENT: | |
782 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
d4393e08 PP |
783 | *notif = dmesg_notif_iter->tmp_event_notif; |
784 | dmesg_notif_iter->tmp_event_notif = NULL; | |
312c056a PP |
785 | break; |
786 | case STATE_EMIT_PACKET_END: | |
0d72b8c3 | 787 | *notif = bt_notification_packet_end_create( |
f0010051 | 788 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->packet); |
312c056a PP |
789 | dmesg_notif_iter->state = STATE_EMIT_STREAM_END; |
790 | break; | |
791 | case STATE_EMIT_STREAM_END: | |
0d72b8c3 | 792 | *notif = bt_notification_stream_end_create( |
f0010051 | 793 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->stream); |
312c056a PP |
794 | dmesg_notif_iter->state = STATE_DONE; |
795 | break; | |
796 | default: | |
797 | break; | |
798 | } | |
799 | ||
d4393e08 | 800 | if (!*notif) { |
312c056a PP |
801 | BT_LOGE("Cannot create notification: dmesg-comp-addr=%p", |
802 | dmesg_comp); | |
d94d92ac | 803 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa PP |
804 | } |
805 | ||
806 | end: | |
d4393e08 PP |
807 | return status; |
808 | } | |
809 | ||
810 | BT_HIDDEN | |
d94d92ac | 811 | enum bt_self_notification_iterator_status dmesg_notif_iter_next( |
b19ff26f | 812 | bt_self_notification_iterator *self_notif_iter, |
0d72b8c3 | 813 | bt_notification_array_const notifs, uint64_t capacity, |
d4393e08 PP |
814 | uint64_t *count) |
815 | { | |
816 | struct dmesg_notif_iter *dmesg_notif_iter = | |
d94d92ac PP |
817 | bt_self_notification_iterator_get_data( |
818 | self_notif_iter); | |
819 | enum bt_self_notification_iterator_status status = | |
820 | BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK; | |
d4393e08 PP |
821 | uint64_t i = 0; |
822 | ||
d94d92ac PP |
823 | while (i < capacity && |
824 | status == BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK) { | |
b19ff26f | 825 | bt_notification *priv_notif = NULL; |
e5be10ef PP |
826 | |
827 | status = dmesg_notif_iter_next_one(dmesg_notif_iter, | |
828 | &priv_notif); | |
0d72b8c3 | 829 | notifs[i] = priv_notif; |
d94d92ac | 830 | if (status == BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK) { |
d4393e08 PP |
831 | i++; |
832 | } | |
833 | } | |
834 | ||
835 | if (i > 0) { | |
836 | /* | |
837 | * Even if dmesg_notif_iter_next_one() returned | |
838 | * something else than | |
d94d92ac PP |
839 | * BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK, we |
840 | * accumulated notification objects in the output | |
841 | * notification array, so we need to return | |
842 | * BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK so that they | |
843 | * are transfered to downstream. This other status | |
844 | * occurs again the next time muxer_notif_iter_do_next() | |
845 | * is called, possibly without any accumulated | |
d4393e08 PP |
846 | * notification, in which case we'll return it. |
847 | */ | |
848 | *count = i; | |
d94d92ac | 849 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK; |
d4393e08 PP |
850 | } |
851 | ||
852 | return status; | |
d8866baa | 853 | } |