Commit | Line | Data |
---|---|---|
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 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; | |
d94d92ac | 48 | struct bt_self_notification_iterator *pc_notif_iter; /* Weak */ |
33ec5dfa PP |
49 | char *linebuf; |
50 | size_t linebuf_len; | |
d8866baa | 51 | FILE *fp; |
e5be10ef | 52 | struct bt_private_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 | ||
e5be10ef PP |
71 | struct bt_private_trace *trace; |
72 | struct bt_private_stream_class *stream_class; | |
73 | struct bt_private_event_class *event_class; | |
74 | struct bt_private_stream *stream; | |
75 | struct bt_private_packet *packet; | |
76 | struct bt_private_clock_class *clock_class; | |
d8866baa PP |
77 | }; |
78 | ||
33ec5dfa | 79 | static |
e5be10ef | 80 | struct bt_private_field_class *create_event_payload_fc(void) |
33ec5dfa | 81 | { |
e5be10ef PP |
82 | struct bt_private_field_class *root_fc = NULL; |
83 | struct bt_private_field_class *fc = NULL; | |
33ec5dfa PP |
84 | int ret; |
85 | ||
e5be10ef | 86 | root_fc = bt_private_field_class_structure_create(); |
5cd6d0e5 PP |
87 | if (!root_fc) { |
88 | BT_LOGE_STR("Cannot create an empty structure field class object."); | |
33ec5dfa PP |
89 | goto error; |
90 | } | |
91 | ||
e5be10ef | 92 | fc = bt_private_field_class_string_create(); |
5cd6d0e5 PP |
93 | if (!fc) { |
94 | BT_LOGE_STR("Cannot create a string field class object."); | |
33ec5dfa PP |
95 | goto error; |
96 | } | |
97 | ||
28e6ca8b | 98 | ret = bt_private_field_class_structure_append_member(root_fc, |
e5be10ef | 99 | "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 | { | |
e5be10ef | 119 | struct bt_private_field_class *fc = NULL; |
33ec5dfa PP |
120 | const char *trace_name = NULL; |
121 | gchar *basename = NULL; | |
d8866baa PP |
122 | int ret = 0; |
123 | ||
e5be10ef | 124 | dmesg_comp->trace = bt_private_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) { | |
e5be10ef | 143 | ret = bt_private_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 | ||
e5be10ef PP |
150 | dmesg_comp->stream_class = bt_private_stream_class_create( |
151 | dmesg_comp->trace); | |
33ec5dfa | 152 | if (!dmesg_comp->stream_class) { |
44c440bc | 153 | BT_LOGE_STR("Cannot create a stream class object."); |
33ec5dfa PP |
154 | goto error; |
155 | } | |
156 | ||
33ec5dfa | 157 | if (has_ts) { |
e5be10ef | 158 | dmesg_comp->clock_class = bt_private_clock_class_create(); |
33ec5dfa PP |
159 | if (!dmesg_comp->clock_class) { |
160 | BT_LOGE_STR("Cannot create clock class."); | |
161 | goto error; | |
162 | } | |
163 | ||
e5be10ef PP |
164 | ret = bt_private_stream_class_set_default_clock_class( |
165 | dmesg_comp->stream_class, | |
707b7d35 | 166 | bt_private_clock_class_as_clock_class( |
e5be10ef | 167 | dmesg_comp->clock_class)); |
33ec5dfa | 168 | if (ret) { |
44c440bc | 169 | BT_LOGE_STR("Cannot set stream class's default clock class."); |
33ec5dfa PP |
170 | goto error; |
171 | } | |
172 | } | |
173 | ||
e5be10ef | 174 | dmesg_comp->event_class = bt_private_event_class_create( |
44c440bc | 175 | dmesg_comp->stream_class); |
33ec5dfa | 176 | if (!dmesg_comp->event_class) { |
44c440bc PP |
177 | BT_LOGE_STR("Cannot create an event class object."); |
178 | goto error; | |
179 | } | |
180 | ||
e5be10ef | 181 | ret = bt_private_event_class_set_name(dmesg_comp->event_class, "string"); |
44c440bc PP |
182 | if (ret) { |
183 | BT_LOGE_STR("Cannot set event class's name."); | |
33ec5dfa PP |
184 | goto error; |
185 | } | |
186 | ||
5cd6d0e5 PP |
187 | fc = create_event_payload_fc(); |
188 | if (!fc) { | |
189 | BT_LOGE_STR("Cannot create event payload field class."); | |
d8866baa PP |
190 | goto error; |
191 | } | |
192 | ||
28e6ca8b | 193 | ret = bt_private_event_class_set_payload_field_class(dmesg_comp->event_class, fc); |
33ec5dfa | 194 | if (ret) { |
5cd6d0e5 | 195 | BT_LOGE_STR("Cannot set event class's event payload field class."); |
33ec5dfa PP |
196 | goto error; |
197 | } | |
198 | ||
33ec5dfa PP |
199 | goto end; |
200 | ||
201 | error: | |
202 | ret = -1; | |
203 | ||
204 | end: | |
65300d60 | 205 | bt_object_put_ref(fc); |
33ec5dfa PP |
206 | |
207 | if (basename) { | |
208 | g_free(basename); | |
209 | } | |
210 | ||
211 | return ret; | |
212 | } | |
213 | ||
214 | static | |
215 | int handle_params(struct dmesg_component *dmesg_comp, struct bt_value *params) | |
216 | { | |
707b323a | 217 | struct bt_value *no_timestamp = NULL; |
33ec5dfa PP |
218 | struct bt_value *path = NULL; |
219 | const char *path_str; | |
220 | int ret = 0; | |
221 | ||
07208d85 PP |
222 | no_timestamp = bt_value_map_borrow_entry_value(params, |
223 | "no-extract-timestamp"); | |
707b323a PP |
224 | if (no_timestamp) { |
225 | if (!bt_value_is_bool(no_timestamp)) { | |
226 | BT_LOGE("Expecting a boolean value for the `no-extract-timestamp` parameter: " | |
227 | "type=%s", | |
da91b29a | 228 | bt_common_value_type_string( |
707b323a PP |
229 | bt_value_get_type(no_timestamp))); |
230 | goto error; | |
231 | } | |
232 | ||
601b0d3c PP |
233 | dmesg_comp->params.no_timestamp = |
234 | bt_value_bool_get(no_timestamp); | |
707b323a PP |
235 | } |
236 | ||
07208d85 | 237 | path = bt_value_map_borrow_entry_value(params, "path"); |
d8866baa PP |
238 | if (path) { |
239 | if (dmesg_comp->params.read_from_stdin) { | |
33ec5dfa | 240 | BT_LOGE_STR("Cannot specify both `read-from-stdin` and `path` parameters."); |
d8866baa PP |
241 | goto error; |
242 | } | |
243 | ||
244 | if (!bt_value_is_string(path)) { | |
33ec5dfa PP |
245 | BT_LOGE("Expecting a string value for the `path` parameter: " |
246 | "type=%s", | |
da91b29a | 247 | bt_common_value_type_string( |
33ec5dfa | 248 | bt_value_get_type(path))); |
d8866baa PP |
249 | goto error; |
250 | } | |
251 | ||
601b0d3c | 252 | path_str = bt_value_string_get(path); |
d8866baa PP |
253 | g_string_assign(dmesg_comp->params.path, path_str); |
254 | } else { | |
4da23e31 | 255 | dmesg_comp->params.read_from_stdin = true; |
d8866baa PP |
256 | } |
257 | ||
258 | goto end; | |
259 | ||
260 | error: | |
261 | ret = -1; | |
262 | ||
263 | end: | |
d8866baa PP |
264 | return ret; |
265 | } | |
266 | ||
33ec5dfa PP |
267 | static |
268 | int create_packet_and_stream(struct dmesg_component *dmesg_comp) | |
269 | { | |
270 | int ret = 0; | |
33ec5dfa | 271 | |
e5be10ef | 272 | dmesg_comp->stream = bt_private_stream_create(dmesg_comp->stream_class); |
33ec5dfa PP |
273 | if (!dmesg_comp->stream) { |
274 | BT_LOGE_STR("Cannot create stream object."); | |
275 | goto error; | |
276 | } | |
277 | ||
e5be10ef | 278 | dmesg_comp->packet = bt_private_packet_create(dmesg_comp->stream); |
33ec5dfa PP |
279 | if (!dmesg_comp->packet) { |
280 | BT_LOGE_STR("Cannot create packet object."); | |
281 | goto error; | |
282 | } | |
283 | ||
e5be10ef | 284 | ret = bt_private_trace_make_static(dmesg_comp->trace); |
33ec5dfa PP |
285 | if (ret) { |
286 | BT_LOGE_STR("Cannot make trace static."); | |
287 | goto error; | |
288 | } | |
289 | ||
290 | goto end; | |
291 | ||
292 | error: | |
293 | ret = -1; | |
294 | ||
295 | end: | |
33ec5dfa PP |
296 | return ret; |
297 | } | |
298 | ||
299 | static | |
300 | int try_create_meta_stream_packet(struct dmesg_component *dmesg_comp, | |
301 | bool has_ts) | |
302 | { | |
303 | int ret = 0; | |
304 | ||
305 | if (dmesg_comp->trace) { | |
306 | /* Already created */ | |
307 | goto end; | |
308 | } | |
309 | ||
310 | ret = create_meta(dmesg_comp, has_ts); | |
311 | if (ret) { | |
312 | BT_LOGE("Cannot create metadata objects: dmesg-comp-addr=%p", | |
313 | dmesg_comp); | |
314 | goto error; | |
315 | } | |
316 | ||
317 | ret = create_packet_and_stream(dmesg_comp); | |
318 | if (ret) { | |
319 | BT_LOGE("Cannot create packet and stream objects: " | |
320 | "dmesg-comp-addr=%p", dmesg_comp); | |
321 | goto error; | |
322 | } | |
323 | ||
324 | goto end; | |
325 | ||
326 | error: | |
327 | ret = -1; | |
328 | ||
329 | end: | |
330 | return ret; | |
331 | } | |
d8866baa PP |
332 | |
333 | static | |
334 | void destroy_dmesg_component(struct dmesg_component *dmesg_comp) | |
335 | { | |
336 | if (!dmesg_comp) { | |
337 | return; | |
338 | } | |
339 | ||
340 | if (dmesg_comp->params.path) { | |
341 | g_string_free(dmesg_comp->params.path, TRUE); | |
342 | } | |
343 | ||
65300d60 PP |
344 | bt_object_put_ref(dmesg_comp->packet); |
345 | bt_object_put_ref(dmesg_comp->trace); | |
346 | bt_object_put_ref(dmesg_comp->stream_class); | |
347 | bt_object_put_ref(dmesg_comp->event_class); | |
348 | bt_object_put_ref(dmesg_comp->stream); | |
349 | bt_object_put_ref(dmesg_comp->clock_class); | |
d8866baa PP |
350 | g_free(dmesg_comp); |
351 | } | |
352 | ||
33ec5dfa | 353 | static |
d94d92ac PP |
354 | enum bt_self_component_status create_port( |
355 | struct bt_self_component_source *self_comp) | |
33ec5dfa | 356 | { |
d94d92ac | 357 | return bt_self_component_source_add_output_port(self_comp, |
33ec5dfa PP |
358 | "out", NULL, NULL); |
359 | } | |
360 | ||
d8866baa | 361 | BT_HIDDEN |
d94d92ac PP |
362 | enum bt_self_component_status dmesg_init( |
363 | struct bt_self_component_source *self_comp, | |
d8866baa PP |
364 | struct bt_value *params, void *init_method_data) |
365 | { | |
366 | int ret = 0; | |
367 | struct dmesg_component *dmesg_comp = g_new0(struct dmesg_component, 1); | |
d94d92ac | 368 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
d8866baa PP |
369 | |
370 | if (!dmesg_comp) { | |
33ec5dfa | 371 | BT_LOGE_STR("Failed to allocate one dmesg component structure."); |
d8866baa PP |
372 | goto error; |
373 | } | |
374 | ||
375 | dmesg_comp->params.path = g_string_new(NULL); | |
376 | if (!dmesg_comp->params.path) { | |
33ec5dfa | 377 | BT_LOGE_STR("Failed to allocate a GString."); |
d8866baa PP |
378 | goto error; |
379 | } | |
380 | ||
33ec5dfa | 381 | ret = handle_params(dmesg_comp, params); |
d8866baa | 382 | if (ret) { |
d94d92ac | 383 | BT_LOGE("Invalid parameters: comp-addr=%p", self_comp); |
d8866baa PP |
384 | goto error; |
385 | } | |
386 | ||
33ec5dfa PP |
387 | if (!dmesg_comp->params.read_from_stdin && |
388 | !g_file_test(dmesg_comp->params.path->str, | |
389 | G_FILE_TEST_IS_REGULAR)) { | |
390 | BT_LOGE("Input path is not a regular file: " | |
d94d92ac | 391 | "comp-addr=%p, path=\"%s\"", self_comp, |
33ec5dfa PP |
392 | dmesg_comp->params.path->str); |
393 | goto error; | |
394 | } | |
d8866baa | 395 | |
d94d92ac PP |
396 | status = create_port(self_comp); |
397 | if (status != BT_SELF_COMPONENT_STATUS_OK) { | |
33ec5dfa PP |
398 | goto error; |
399 | } | |
d8866baa | 400 | |
d94d92ac | 401 | bt_self_component_set_data( |
707b7d35 | 402 | bt_self_component_source_as_self_component(self_comp), |
d94d92ac | 403 | dmesg_comp); |
d8866baa PP |
404 | goto end; |
405 | ||
406 | error: | |
407 | destroy_dmesg_component(dmesg_comp); | |
d94d92ac | 408 | bt_self_component_set_data( |
707b7d35 | 409 | bt_self_component_source_as_self_component(self_comp), |
d94d92ac | 410 | NULL); |
33ec5dfa PP |
411 | |
412 | if (status >= 0) { | |
d94d92ac | 413 | status = BT_SELF_COMPONENT_STATUS_ERROR; |
33ec5dfa | 414 | } |
d8866baa PP |
415 | |
416 | end: | |
417 | return status; | |
418 | } | |
419 | ||
420 | BT_HIDDEN | |
d94d92ac | 421 | void dmesg_finalize(struct bt_self_component_source *self_comp) |
d8866baa | 422 | { |
d94d92ac | 423 | destroy_dmesg_component(bt_self_component_get_data( |
707b7d35 | 424 | bt_self_component_source_as_self_component(self_comp))); |
33ec5dfa PP |
425 | } |
426 | ||
427 | static | |
e5be10ef | 428 | struct bt_private_notification *create_init_event_notif_from_line( |
f0010051 | 429 | struct dmesg_notif_iter *notif_iter, |
312c056a | 430 | const char *line, const char **new_start) |
33ec5dfa | 431 | { |
e5be10ef PP |
432 | struct bt_private_event *event; |
433 | struct bt_private_notification *notif = NULL; | |
33ec5dfa PP |
434 | bool has_timestamp = false; |
435 | unsigned long sec, usec, msec; | |
436 | unsigned int year, mon, mday, hour, min; | |
437 | uint64_t ts = 0; | |
33ec5dfa | 438 | int ret = 0; |
f0010051 | 439 | struct dmesg_component *dmesg_comp = notif_iter->dmesg_comp; |
33ec5dfa | 440 | |
33ec5dfa PP |
441 | *new_start = line; |
442 | ||
707b323a PP |
443 | if (dmesg_comp->params.no_timestamp) { |
444 | goto skip_ts; | |
445 | } | |
446 | ||
33ec5dfa PP |
447 | /* Extract time from input line */ |
448 | if (sscanf(line, "[%lu.%lu] ", &sec, &usec) == 2) { | |
449 | ts = (uint64_t) sec * USEC_PER_SEC + (uint64_t) usec; | |
450 | ||
451 | /* | |
452 | * The clock class we use has a 1 GHz frequency: convert | |
453 | * from µs to ns. | |
454 | */ | |
455 | ts *= NSEC_PER_USEC; | |
456 | has_timestamp = true; | |
457 | } else if (sscanf(line, "[%u-%u-%u %u:%u:%lu.%lu] ", | |
458 | &year, &mon, &mday, &hour, &min, | |
459 | &sec, &msec) == 7) { | |
460 | time_t ep_sec; | |
461 | struct tm ti; | |
462 | ||
463 | memset(&ti, 0, sizeof(ti)); | |
464 | ti.tm_year = year - 1900; /* From 1900 */ | |
465 | ti.tm_mon = mon - 1; /* 0 to 11 */ | |
466 | ti.tm_mday = mday; | |
467 | ti.tm_hour = hour; | |
468 | ti.tm_min = min; | |
469 | ti.tm_sec = sec; | |
470 | ||
471 | ep_sec = bt_timegm(&ti); | |
472 | if (ep_sec != (time_t) -1) { | |
473 | ts = (uint64_t) ep_sec * NSEC_PER_SEC | |
474 | + (uint64_t) msec * NSEC_PER_MSEC; | |
475 | } | |
476 | ||
477 | has_timestamp = true; | |
478 | } | |
479 | ||
480 | if (has_timestamp) { | |
481 | /* Set new start for the message portion of the line */ | |
482 | *new_start = strchr(line, ']'); | |
f6ccaed9 | 483 | BT_ASSERT(*new_start); |
33ec5dfa PP |
484 | (*new_start)++; |
485 | ||
486 | if ((*new_start)[0] == ' ') { | |
487 | (*new_start)++; | |
488 | } | |
489 | } | |
490 | ||
707b323a | 491 | skip_ts: |
33ec5dfa PP |
492 | /* |
493 | * At this point, we know if the stream class's event header | |
5cd6d0e5 | 494 | * field class should have a timestamp or not, so we can lazily |
33ec5dfa PP |
495 | * create the metadata, stream, and packet objects. |
496 | */ | |
497 | ret = try_create_meta_stream_packet(dmesg_comp, has_timestamp); | |
498 | if (ret) { | |
499 | /* try_create_meta_stream_packet() logs errors */ | |
500 | goto error; | |
501 | } | |
502 | ||
e5be10ef | 503 | notif = bt_private_notification_event_create(notif_iter->pc_notif_iter, |
e22b45d0 | 504 | dmesg_comp->event_class, dmesg_comp->packet); |
312c056a PP |
505 | if (!notif) { |
506 | BT_LOGE_STR("Cannot create event notification."); | |
507 | goto error; | |
508 | } | |
33ec5dfa | 509 | |
28e6ca8b | 510 | event = bt_private_notification_event_borrow_event(notif); |
312c056a | 511 | BT_ASSERT(event); |
33ec5dfa | 512 | |
312c056a | 513 | if (dmesg_comp->clock_class) { |
140e6d94 | 514 | bt_private_event_set_default_clock_value(event, ts); |
33ec5dfa PP |
515 | } |
516 | ||
517 | goto end; | |
518 | ||
519 | error: | |
65300d60 | 520 | BT_OBJECT_PUT_REF_AND_RESET(notif); |
33ec5dfa PP |
521 | |
522 | end: | |
312c056a | 523 | return notif; |
33ec5dfa PP |
524 | } |
525 | ||
526 | static | |
e5be10ef PP |
527 | int fill_event_payload_from_line(const char *line, |
528 | struct bt_private_event *event) | |
33ec5dfa | 529 | { |
e5be10ef PP |
530 | struct bt_private_field *ep_field = NULL; |
531 | struct bt_private_field *str_field = NULL; | |
33ec5dfa PP |
532 | size_t len; |
533 | int ret; | |
534 | ||
28e6ca8b | 535 | ep_field = bt_private_event_borrow_payload_field(event); |
312c056a | 536 | BT_ASSERT(ep_field); |
28e6ca8b | 537 | str_field = bt_private_field_structure_borrow_member_field_by_index( |
e5be10ef | 538 | ep_field, 0); |
33ec5dfa | 539 | if (!str_field) { |
312c056a | 540 | BT_LOGE_STR("Cannot borrow `timestamp` field from event payload structure field."); |
33ec5dfa PP |
541 | goto error; |
542 | } | |
543 | ||
544 | len = strlen(line); | |
545 | if (line[len - 1] == '\n') { | |
546 | /* Do not include the newline character in the payload */ | |
547 | len--; | |
548 | } | |
549 | ||
e5be10ef | 550 | ret = bt_private_field_string_clear(str_field); |
312c056a PP |
551 | if (ret) { |
552 | BT_LOGE_STR("Cannot clear string field object."); | |
553 | goto error; | |
554 | } | |
555 | ||
e5be10ef | 556 | ret = bt_private_field_string_append_with_length(str_field, line, len); |
33ec5dfa PP |
557 | if (ret) { |
558 | BT_LOGE("Cannot append value to string field object: " | |
559 | "len=%zu", len); | |
560 | goto error; | |
561 | } | |
562 | ||
33ec5dfa PP |
563 | goto end; |
564 | ||
565 | error: | |
566 | ret = -1; | |
567 | ||
568 | end: | |
33ec5dfa PP |
569 | return ret; |
570 | } | |
571 | ||
572 | static | |
e5be10ef | 573 | struct bt_private_notification *create_notif_from_line( |
f0010051 | 574 | struct dmesg_notif_iter *dmesg_notif_iter, const char *line) |
33ec5dfa | 575 | { |
e5be10ef PP |
576 | struct bt_private_event *event = NULL; |
577 | struct bt_private_notification *notif = NULL; | |
33ec5dfa PP |
578 | const char *new_start; |
579 | int ret; | |
580 | ||
f0010051 PP |
581 | notif = create_init_event_notif_from_line(dmesg_notif_iter, |
582 | line, &new_start); | |
312c056a PP |
583 | if (!notif) { |
584 | BT_LOGE_STR("Cannot create and initialize event notification from line."); | |
33ec5dfa PP |
585 | goto error; |
586 | } | |
587 | ||
28e6ca8b | 588 | event = bt_private_notification_event_borrow_event(notif); |
312c056a | 589 | BT_ASSERT(event); |
f0010051 | 590 | ret = fill_event_payload_from_line(new_start, event); |
33ec5dfa | 591 | if (ret) { |
312c056a | 592 | BT_LOGE("Cannot fill event payload field from line: " |
33ec5dfa PP |
593 | "ret=%d", ret); |
594 | goto error; | |
595 | } | |
596 | ||
33ec5dfa PP |
597 | goto end; |
598 | ||
599 | error: | |
65300d60 | 600 | BT_OBJECT_PUT_REF_AND_RESET(notif); |
33ec5dfa PP |
601 | |
602 | end: | |
33ec5dfa PP |
603 | return notif; |
604 | } | |
605 | ||
606 | static | |
607 | void destroy_dmesg_notif_iter(struct dmesg_notif_iter *dmesg_notif_iter) | |
608 | { | |
609 | if (!dmesg_notif_iter) { | |
610 | return; | |
611 | } | |
612 | ||
613 | if (dmesg_notif_iter->fp && dmesg_notif_iter->fp != stdin) { | |
614 | if (fclose(dmesg_notif_iter->fp)) { | |
615 | BT_LOGE_ERRNO("Cannot close input file", "."); | |
616 | } | |
617 | } | |
d8866baa | 618 | |
65300d60 | 619 | bt_object_put_ref(dmesg_notif_iter->tmp_event_notif); |
33ec5dfa PP |
620 | free(dmesg_notif_iter->linebuf); |
621 | g_free(dmesg_notif_iter); | |
d8866baa PP |
622 | } |
623 | ||
624 | BT_HIDDEN | |
d94d92ac PP |
625 | enum bt_self_notification_iterator_status dmesg_notif_iter_init( |
626 | struct bt_self_notification_iterator *self_notif_iter, | |
627 | struct bt_self_component_source *self_comp, | |
628 | struct bt_self_component_port_output *self_port) | |
d8866baa | 629 | { |
33ec5dfa PP |
630 | struct dmesg_component *dmesg_comp; |
631 | struct dmesg_notif_iter *dmesg_notif_iter = | |
632 | g_new0(struct dmesg_notif_iter, 1); | |
d94d92ac PP |
633 | enum bt_self_notification_iterator_status status = |
634 | BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK; | |
33ec5dfa PP |
635 | |
636 | if (!dmesg_notif_iter) { | |
637 | BT_LOGE_STR("Failed to allocate on dmesg notification iterator structure."); | |
638 | goto error; | |
639 | } | |
640 | ||
d94d92ac | 641 | dmesg_comp = bt_self_component_get_data( |
707b7d35 | 642 | bt_self_component_source_as_self_component(self_comp)); |
f6ccaed9 | 643 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 644 | dmesg_notif_iter->dmesg_comp = dmesg_comp; |
d94d92ac | 645 | dmesg_notif_iter->pc_notif_iter = self_notif_iter; |
d8866baa | 646 | |
33ec5dfa PP |
647 | if (dmesg_comp->params.read_from_stdin) { |
648 | dmesg_notif_iter->fp = stdin; | |
649 | } else { | |
650 | dmesg_notif_iter->fp = fopen(dmesg_comp->params.path->str, "r"); | |
651 | if (!dmesg_notif_iter->fp) { | |
652 | BT_LOGE_ERRNO("Cannot open input file in read mode", ": path=\"%s\"", | |
653 | dmesg_comp->params.path->str); | |
654 | goto error; | |
655 | } | |
656 | } | |
657 | ||
d94d92ac | 658 | bt_self_notification_iterator_set_data(self_notif_iter, |
33ec5dfa PP |
659 | dmesg_notif_iter); |
660 | goto end; | |
661 | ||
662 | error: | |
663 | destroy_dmesg_notif_iter(dmesg_notif_iter); | |
d94d92ac | 664 | bt_self_notification_iterator_set_data(self_notif_iter, NULL); |
33ec5dfa | 665 | if (status >= 0) { |
d94d92ac | 666 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa PP |
667 | } |
668 | ||
669 | end: | |
33ec5dfa | 670 | return status; |
d8866baa PP |
671 | } |
672 | ||
673 | BT_HIDDEN | |
33ec5dfa | 674 | void dmesg_notif_iter_finalize( |
d94d92ac | 675 | struct bt_self_notification_iterator *priv_notif_iter) |
d8866baa | 676 | { |
d94d92ac | 677 | destroy_dmesg_notif_iter(bt_self_notification_iterator_get_data( |
33ec5dfa | 678 | priv_notif_iter)); |
d8866baa PP |
679 | } |
680 | ||
d4393e08 | 681 | static |
d94d92ac | 682 | enum bt_self_notification_iterator_status dmesg_notif_iter_next_one( |
d4393e08 | 683 | struct dmesg_notif_iter *dmesg_notif_iter, |
e5be10ef | 684 | struct bt_private_notification **notif) |
d8866baa | 685 | { |
33ec5dfa | 686 | ssize_t len; |
33ec5dfa | 687 | struct dmesg_component *dmesg_comp; |
d94d92ac PP |
688 | enum bt_self_notification_iterator_status status = |
689 | BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK; | |
d8866baa | 690 | |
f6ccaed9 | 691 | BT_ASSERT(dmesg_notif_iter); |
33ec5dfa | 692 | dmesg_comp = dmesg_notif_iter->dmesg_comp; |
f6ccaed9 | 693 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 694 | |
312c056a | 695 | if (dmesg_notif_iter->state == STATE_DONE) { |
d94d92ac | 696 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_END; |
312c056a PP |
697 | goto end; |
698 | } | |
699 | ||
700 | if (dmesg_notif_iter->tmp_event_notif || | |
701 | dmesg_notif_iter->state == STATE_EMIT_PACKET_END || | |
702 | dmesg_notif_iter->state == STATE_EMIT_STREAM_END) { | |
703 | goto handle_state; | |
704 | } | |
705 | ||
33ec5dfa PP |
706 | while (true) { |
707 | const char *ch; | |
708 | bool only_spaces = true; | |
709 | ||
710 | len = bt_getline(&dmesg_notif_iter->linebuf, | |
711 | &dmesg_notif_iter->linebuf_len, dmesg_notif_iter->fp); | |
712 | if (len < 0) { | |
713 | if (errno == EINVAL) { | |
d94d92ac | 714 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa | 715 | } else if (errno == ENOMEM) { |
d4393e08 | 716 | status = |
d94d92ac | 717 | BT_SELF_NOTIFICATION_ITERATOR_STATUS_NOMEM; |
33ec5dfa | 718 | } else { |
312c056a PP |
719 | if (dmesg_notif_iter->state == STATE_EMIT_STREAM_BEGINNING) { |
720 | /* Stream did not even begin */ | |
d94d92ac | 721 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_END; |
312c056a PP |
722 | goto end; |
723 | } else { | |
724 | /* End current packet now */ | |
725 | dmesg_notif_iter->state = | |
726 | STATE_EMIT_PACKET_END; | |
727 | goto handle_state; | |
728 | } | |
33ec5dfa PP |
729 | } |
730 | ||
731 | goto end; | |
732 | } | |
733 | ||
f6ccaed9 | 734 | BT_ASSERT(dmesg_notif_iter->linebuf); |
33ec5dfa PP |
735 | |
736 | /* Ignore empty lines, once trimmed */ | |
737 | for (ch = dmesg_notif_iter->linebuf; *ch != '\0'; ch++) { | |
738 | if (!isspace(*ch)) { | |
739 | only_spaces = false; | |
740 | break; | |
741 | } | |
742 | } | |
743 | ||
744 | if (!only_spaces) { | |
745 | break; | |
746 | } | |
747 | } | |
748 | ||
f0010051 PP |
749 | dmesg_notif_iter->tmp_event_notif = create_notif_from_line( |
750 | dmesg_notif_iter, dmesg_notif_iter->linebuf); | |
312c056a | 751 | if (!dmesg_notif_iter->tmp_event_notif) { |
33ec5dfa PP |
752 | BT_LOGE("Cannot create event notification from line: " |
753 | "dmesg-comp-addr=%p, line=\"%s\"", dmesg_comp, | |
754 | dmesg_notif_iter->linebuf); | |
312c056a PP |
755 | goto end; |
756 | } | |
757 | ||
758 | handle_state: | |
759 | BT_ASSERT(dmesg_comp->trace); | |
760 | ||
761 | switch (dmesg_notif_iter->state) { | |
762 | case STATE_EMIT_STREAM_BEGINNING: | |
763 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
e5be10ef | 764 | *notif = bt_private_notification_stream_begin_create( |
f0010051 | 765 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->stream); |
312c056a PP |
766 | dmesg_notif_iter->state = STATE_EMIT_PACKET_BEGINNING; |
767 | break; | |
768 | case STATE_EMIT_PACKET_BEGINNING: | |
769 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
e5be10ef | 770 | *notif = bt_private_notification_packet_begin_create( |
f0010051 | 771 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->packet); |
312c056a PP |
772 | dmesg_notif_iter->state = STATE_EMIT_EVENT; |
773 | break; | |
774 | case STATE_EMIT_EVENT: | |
775 | BT_ASSERT(dmesg_notif_iter->tmp_event_notif); | |
d4393e08 PP |
776 | *notif = dmesg_notif_iter->tmp_event_notif; |
777 | dmesg_notif_iter->tmp_event_notif = NULL; | |
312c056a PP |
778 | break; |
779 | case STATE_EMIT_PACKET_END: | |
e5be10ef | 780 | *notif = bt_private_notification_packet_end_create( |
f0010051 | 781 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->packet); |
312c056a PP |
782 | dmesg_notif_iter->state = STATE_EMIT_STREAM_END; |
783 | break; | |
784 | case STATE_EMIT_STREAM_END: | |
e5be10ef | 785 | *notif = bt_private_notification_stream_end_create( |
f0010051 | 786 | dmesg_notif_iter->pc_notif_iter, dmesg_comp->stream); |
312c056a PP |
787 | dmesg_notif_iter->state = STATE_DONE; |
788 | break; | |
789 | default: | |
790 | break; | |
791 | } | |
792 | ||
d4393e08 | 793 | if (!*notif) { |
312c056a PP |
794 | BT_LOGE("Cannot create notification: dmesg-comp-addr=%p", |
795 | dmesg_comp); | |
d94d92ac | 796 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_ERROR; |
33ec5dfa PP |
797 | } |
798 | ||
799 | end: | |
d4393e08 PP |
800 | return status; |
801 | } | |
802 | ||
803 | BT_HIDDEN | |
d94d92ac PP |
804 | enum bt_self_notification_iterator_status dmesg_notif_iter_next( |
805 | struct bt_self_notification_iterator *self_notif_iter, | |
d4393e08 PP |
806 | bt_notification_array notifs, uint64_t capacity, |
807 | uint64_t *count) | |
808 | { | |
809 | struct dmesg_notif_iter *dmesg_notif_iter = | |
d94d92ac PP |
810 | bt_self_notification_iterator_get_data( |
811 | self_notif_iter); | |
812 | enum bt_self_notification_iterator_status status = | |
813 | BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK; | |
d4393e08 PP |
814 | uint64_t i = 0; |
815 | ||
d94d92ac PP |
816 | while (i < capacity && |
817 | status == BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK) { | |
818 | struct bt_private_notification *priv_notif = NULL; | |
e5be10ef PP |
819 | |
820 | status = dmesg_notif_iter_next_one(dmesg_notif_iter, | |
821 | &priv_notif); | |
707b7d35 | 822 | notifs[i] = bt_private_notification_as_notification( |
d94d92ac PP |
823 | priv_notif); |
824 | if (status == BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK) { | |
d4393e08 PP |
825 | i++; |
826 | } | |
827 | } | |
828 | ||
829 | if (i > 0) { | |
830 | /* | |
831 | * Even if dmesg_notif_iter_next_one() returned | |
832 | * something else than | |
d94d92ac PP |
833 | * BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK, we |
834 | * accumulated notification objects in the output | |
835 | * notification array, so we need to return | |
836 | * BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK so that they | |
837 | * are transfered to downstream. This other status | |
838 | * occurs again the next time muxer_notif_iter_do_next() | |
839 | * is called, possibly without any accumulated | |
d4393e08 PP |
840 | * notification, in which case we'll return it. |
841 | */ | |
842 | *count = i; | |
d94d92ac | 843 | status = BT_SELF_NOTIFICATION_ITERATOR_STATUS_OK; |
d4393e08 PP |
844 | } |
845 | ||
846 | return status; | |
d8866baa | 847 | } |