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 | ||
d6e69534 | 46 | struct dmesg_msg_iter { |
d8866baa | 47 | struct dmesg_component *dmesg_comp; |
d6e69534 | 48 | bt_self_message_iterator *pc_msg_iter; /* Weak */ |
33ec5dfa PP |
49 | char *linebuf; |
50 | size_t linebuf_len; | |
d8866baa | 51 | FILE *fp; |
d6e69534 | 52 | bt_message *tmp_event_msg; |
a6d85d2f | 53 | uint64_t last_clock_value; |
312c056a PP |
54 | |
55 | enum { | |
56 | STATE_EMIT_STREAM_BEGINNING, | |
a59806b7 | 57 | STATE_EMIT_STREAM_ACTIVITY_BEGINNING, |
312c056a PP |
58 | STATE_EMIT_PACKET_BEGINNING, |
59 | STATE_EMIT_EVENT, | |
60 | STATE_EMIT_PACKET_END, | |
a59806b7 | 61 | STATE_EMIT_STREAM_ACTIVITY_END, |
312c056a PP |
62 | STATE_EMIT_STREAM_END, |
63 | STATE_DONE, | |
64 | } state; | |
d8866baa PP |
65 | }; |
66 | ||
67 | struct dmesg_component { | |
68 | struct { | |
69 | GString *path; | |
33ec5dfa | 70 | bt_bool read_from_stdin; |
707b323a | 71 | bt_bool no_timestamp; |
d8866baa PP |
72 | } params; |
73 | ||
41693723 | 74 | bt_self_component_source *self_comp; |
b19ff26f PP |
75 | bt_trace_class *trace_class; |
76 | bt_stream_class *stream_class; | |
77 | bt_event_class *event_class; | |
78 | bt_trace *trace; | |
79 | bt_stream *stream; | |
80 | bt_packet *packet; | |
81 | bt_clock_class *clock_class; | |
d8866baa PP |
82 | }; |
83 | ||
33ec5dfa | 84 | static |
1122a43a | 85 | bt_field_class *create_event_payload_fc(bt_trace_class *trace_class) |
33ec5dfa | 86 | { |
b19ff26f PP |
87 | bt_field_class *root_fc = NULL; |
88 | bt_field_class *fc = NULL; | |
33ec5dfa PP |
89 | int ret; |
90 | ||
1122a43a | 91 | root_fc = bt_field_class_structure_create(trace_class); |
5cd6d0e5 PP |
92 | if (!root_fc) { |
93 | BT_LOGE_STR("Cannot create an empty structure field class object."); | |
33ec5dfa PP |
94 | goto error; |
95 | } | |
96 | ||
1122a43a | 97 | fc = bt_field_class_string_create(trace_class); |
5cd6d0e5 PP |
98 | if (!fc) { |
99 | BT_LOGE_STR("Cannot create a string field class object."); | |
33ec5dfa PP |
100 | goto error; |
101 | } | |
102 | ||
40f4ba76 | 103 | ret = bt_field_class_structure_append_member(root_fc, |
e5be10ef | 104 | "str", fc); |
33ec5dfa | 105 | if (ret) { |
5cd6d0e5 | 106 | BT_LOGE("Cannot add `str` member to structure field class: " |
33ec5dfa PP |
107 | "ret=%d", ret); |
108 | goto error; | |
109 | } | |
110 | ||
111 | goto end; | |
112 | ||
113 | error: | |
c5b9b441 | 114 | BT_FIELD_CLASS_PUT_REF_AND_RESET(root_fc); |
33ec5dfa PP |
115 | |
116 | end: | |
c5b9b441 | 117 | bt_field_class_put_ref(fc); |
5cd6d0e5 | 118 | return root_fc; |
33ec5dfa PP |
119 | } |
120 | ||
33ec5dfa PP |
121 | static |
122 | int create_meta(struct dmesg_component *dmesg_comp, bool has_ts) | |
123 | { | |
b19ff26f | 124 | bt_field_class *fc = NULL; |
d8866baa PP |
125 | int ret = 0; |
126 | ||
41693723 PP |
127 | dmesg_comp->trace_class = bt_trace_class_create( |
128 | bt_self_component_source_as_self_component( | |
129 | dmesg_comp->self_comp)); | |
862ca4ed PP |
130 | if (!dmesg_comp->trace_class) { |
131 | BT_LOGE_STR("Cannot create an empty trace class object."); | |
33ec5dfa PP |
132 | goto error; |
133 | } | |
134 | ||
40f4ba76 | 135 | dmesg_comp->stream_class = bt_stream_class_create( |
862ca4ed | 136 | dmesg_comp->trace_class); |
33ec5dfa | 137 | if (!dmesg_comp->stream_class) { |
44c440bc | 138 | BT_LOGE_STR("Cannot create a stream class object."); |
33ec5dfa PP |
139 | goto error; |
140 | } | |
141 | ||
33ec5dfa | 142 | if (has_ts) { |
0f2d58c9 PP |
143 | dmesg_comp->clock_class = bt_clock_class_create( |
144 | dmesg_comp->trace_class); | |
33ec5dfa PP |
145 | if (!dmesg_comp->clock_class) { |
146 | BT_LOGE_STR("Cannot create clock class."); | |
147 | goto error; | |
148 | } | |
149 | ||
40f4ba76 PP |
150 | ret = bt_stream_class_set_default_clock_class( |
151 | dmesg_comp->stream_class, dmesg_comp->clock_class); | |
33ec5dfa | 152 | if (ret) { |
44c440bc | 153 | BT_LOGE_STR("Cannot set stream class's default clock class."); |
33ec5dfa PP |
154 | goto error; |
155 | } | |
156 | } | |
157 | ||
40f4ba76 | 158 | dmesg_comp->event_class = bt_event_class_create( |
44c440bc | 159 | dmesg_comp->stream_class); |
33ec5dfa | 160 | if (!dmesg_comp->event_class) { |
44c440bc PP |
161 | BT_LOGE_STR("Cannot create an event class object."); |
162 | goto error; | |
163 | } | |
164 | ||
40f4ba76 | 165 | ret = bt_event_class_set_name(dmesg_comp->event_class, "string"); |
44c440bc PP |
166 | if (ret) { |
167 | BT_LOGE_STR("Cannot set event class's name."); | |
33ec5dfa PP |
168 | goto error; |
169 | } | |
170 | ||
1122a43a | 171 | fc = create_event_payload_fc(dmesg_comp->trace_class); |
5cd6d0e5 PP |
172 | if (!fc) { |
173 | BT_LOGE_STR("Cannot create event payload field class."); | |
d8866baa PP |
174 | goto error; |
175 | } | |
176 | ||
40f4ba76 | 177 | ret = bt_event_class_set_payload_field_class(dmesg_comp->event_class, fc); |
33ec5dfa | 178 | if (ret) { |
5cd6d0e5 | 179 | BT_LOGE_STR("Cannot set event class's event payload field class."); |
33ec5dfa PP |
180 | goto error; |
181 | } | |
182 | ||
33ec5dfa PP |
183 | goto end; |
184 | ||
185 | error: | |
186 | ret = -1; | |
187 | ||
188 | end: | |
c5b9b441 | 189 | bt_field_class_put_ref(fc); |
33ec5dfa PP |
190 | return ret; |
191 | } | |
192 | ||
193 | static | |
05e21286 | 194 | int handle_params(struct dmesg_component *dmesg_comp, |
b19ff26f | 195 | const bt_value *params) |
33ec5dfa | 196 | { |
b19ff26f PP |
197 | const bt_value *no_timestamp = NULL; |
198 | const bt_value *path = NULL; | |
33ec5dfa PP |
199 | const char *path_str; |
200 | int ret = 0; | |
201 | ||
05e21286 | 202 | no_timestamp = bt_value_map_borrow_entry_value_const(params, |
07208d85 | 203 | "no-extract-timestamp"); |
707b323a PP |
204 | if (no_timestamp) { |
205 | if (!bt_value_is_bool(no_timestamp)) { | |
206 | BT_LOGE("Expecting a boolean value for the `no-extract-timestamp` parameter: " | |
207 | "type=%s", | |
da91b29a | 208 | bt_common_value_type_string( |
707b323a PP |
209 | bt_value_get_type(no_timestamp))); |
210 | goto error; | |
211 | } | |
212 | ||
601b0d3c PP |
213 | dmesg_comp->params.no_timestamp = |
214 | bt_value_bool_get(no_timestamp); | |
707b323a PP |
215 | } |
216 | ||
05e21286 | 217 | path = bt_value_map_borrow_entry_value_const(params, "path"); |
d8866baa PP |
218 | if (path) { |
219 | if (dmesg_comp->params.read_from_stdin) { | |
33ec5dfa | 220 | BT_LOGE_STR("Cannot specify both `read-from-stdin` and `path` parameters."); |
d8866baa PP |
221 | goto error; |
222 | } | |
223 | ||
224 | if (!bt_value_is_string(path)) { | |
33ec5dfa PP |
225 | BT_LOGE("Expecting a string value for the `path` parameter: " |
226 | "type=%s", | |
da91b29a | 227 | bt_common_value_type_string( |
33ec5dfa | 228 | bt_value_get_type(path))); |
d8866baa PP |
229 | goto error; |
230 | } | |
231 | ||
601b0d3c | 232 | path_str = bt_value_string_get(path); |
d8866baa PP |
233 | g_string_assign(dmesg_comp->params.path, path_str); |
234 | } else { | |
4da23e31 | 235 | dmesg_comp->params.read_from_stdin = true; |
d8866baa PP |
236 | } |
237 | ||
238 | goto end; | |
239 | ||
240 | error: | |
241 | ret = -1; | |
242 | ||
243 | end: | |
d8866baa PP |
244 | return ret; |
245 | } | |
246 | ||
33ec5dfa | 247 | static |
862ca4ed | 248 | int create_packet_and_stream_and_trace(struct dmesg_component *dmesg_comp) |
33ec5dfa PP |
249 | { |
250 | int ret = 0; | |
e54986cf | 251 | const char *trace_name = NULL; |
862ca4ed PP |
252 | gchar *basename = NULL; |
253 | ||
254 | dmesg_comp->trace = bt_trace_create(dmesg_comp->trace_class); | |
255 | if (!dmesg_comp->trace) { | |
256 | BT_LOGE_STR("Cannot create trace object."); | |
257 | goto error; | |
258 | } | |
33ec5dfa | 259 | |
862ca4ed PP |
260 | if (dmesg_comp->params.read_from_stdin) { |
261 | trace_name = "STDIN"; | |
262 | } else { | |
263 | basename = g_path_get_basename(dmesg_comp->params.path->str); | |
264 | BT_ASSERT(basename); | |
265 | ||
266 | if (strcmp(basename, G_DIR_SEPARATOR_S) != 0 && | |
267 | strcmp(basename, ".") != 0) { | |
268 | trace_name = basename; | |
269 | } | |
270 | } | |
271 | ||
272 | if (trace_name) { | |
273 | ret = bt_trace_set_name(dmesg_comp->trace, trace_name); | |
274 | if (ret) { | |
275 | BT_LOGE("Cannot set trace's name: name=\"%s\"", | |
276 | trace_name); | |
277 | goto error; | |
278 | } | |
279 | } | |
280 | ||
281 | dmesg_comp->stream = bt_stream_create(dmesg_comp->stream_class, | |
282 | dmesg_comp->trace); | |
33ec5dfa PP |
283 | if (!dmesg_comp->stream) { |
284 | BT_LOGE_STR("Cannot create stream object."); | |
285 | goto error; | |
286 | } | |
287 | ||
40f4ba76 | 288 | dmesg_comp->packet = bt_packet_create(dmesg_comp->stream); |
33ec5dfa PP |
289 | if (!dmesg_comp->packet) { |
290 | BT_LOGE_STR("Cannot create packet object."); | |
291 | goto error; | |
292 | } | |
293 | ||
40f4ba76 | 294 | ret = bt_trace_make_static(dmesg_comp->trace); |
33ec5dfa PP |
295 | if (ret) { |
296 | BT_LOGE_STR("Cannot make trace static."); | |
297 | goto error; | |
298 | } | |
299 | ||
300 | goto end; | |
301 | ||
302 | error: | |
303 | ret = -1; | |
304 | ||
305 | end: | |
862ca4ed PP |
306 | if (basename) { |
307 | g_free(basename); | |
308 | } | |
309 | ||
33ec5dfa PP |
310 | return ret; |
311 | } | |
312 | ||
313 | static | |
314 | int try_create_meta_stream_packet(struct dmesg_component *dmesg_comp, | |
315 | bool has_ts) | |
316 | { | |
317 | int ret = 0; | |
318 | ||
319 | if (dmesg_comp->trace) { | |
320 | /* Already created */ | |
321 | goto end; | |
322 | } | |
323 | ||
324 | ret = create_meta(dmesg_comp, has_ts); | |
325 | if (ret) { | |
326 | BT_LOGE("Cannot create metadata objects: dmesg-comp-addr=%p", | |
327 | dmesg_comp); | |
328 | goto error; | |
329 | } | |
330 | ||
862ca4ed | 331 | ret = create_packet_and_stream_and_trace(dmesg_comp); |
33ec5dfa PP |
332 | if (ret) { |
333 | BT_LOGE("Cannot create packet and stream objects: " | |
334 | "dmesg-comp-addr=%p", dmesg_comp); | |
335 | goto error; | |
336 | } | |
337 | ||
338 | goto end; | |
339 | ||
340 | error: | |
341 | ret = -1; | |
342 | ||
343 | end: | |
344 | return ret; | |
345 | } | |
d8866baa PP |
346 | |
347 | static | |
348 | void destroy_dmesg_component(struct dmesg_component *dmesg_comp) | |
349 | { | |
350 | if (!dmesg_comp) { | |
351 | return; | |
352 | } | |
353 | ||
354 | if (dmesg_comp->params.path) { | |
355 | g_string_free(dmesg_comp->params.path, TRUE); | |
356 | } | |
357 | ||
c5b9b441 PP |
358 | bt_packet_put_ref(dmesg_comp->packet); |
359 | bt_trace_put_ref(dmesg_comp->trace); | |
360 | bt_stream_class_put_ref(dmesg_comp->stream_class); | |
361 | bt_event_class_put_ref(dmesg_comp->event_class); | |
362 | bt_stream_put_ref(dmesg_comp->stream); | |
363 | bt_clock_class_put_ref(dmesg_comp->clock_class); | |
8b5bd70c | 364 | bt_trace_class_put_ref(dmesg_comp->trace_class); |
d8866baa PP |
365 | g_free(dmesg_comp); |
366 | } | |
367 | ||
33ec5dfa | 368 | static |
4cdfc5e8 | 369 | bt_self_component_status create_port( |
b19ff26f | 370 | bt_self_component_source *self_comp) |
33ec5dfa | 371 | { |
d94d92ac | 372 | return bt_self_component_source_add_output_port(self_comp, |
33ec5dfa PP |
373 | "out", NULL, NULL); |
374 | } | |
375 | ||
d8866baa | 376 | BT_HIDDEN |
4cdfc5e8 | 377 | bt_self_component_status dmesg_init( |
b19ff26f PP |
378 | bt_self_component_source *self_comp, |
379 | bt_value *params, void *init_method_data) | |
d8866baa PP |
380 | { |
381 | int ret = 0; | |
382 | struct dmesg_component *dmesg_comp = g_new0(struct dmesg_component, 1); | |
4cdfc5e8 | 383 | bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
d8866baa PP |
384 | |
385 | if (!dmesg_comp) { | |
33ec5dfa | 386 | BT_LOGE_STR("Failed to allocate one dmesg component structure."); |
d8866baa PP |
387 | goto error; |
388 | } | |
389 | ||
41693723 | 390 | dmesg_comp->self_comp = self_comp; |
d8866baa PP |
391 | dmesg_comp->params.path = g_string_new(NULL); |
392 | if (!dmesg_comp->params.path) { | |
33ec5dfa | 393 | BT_LOGE_STR("Failed to allocate a GString."); |
d8866baa PP |
394 | goto error; |
395 | } | |
396 | ||
33ec5dfa | 397 | ret = handle_params(dmesg_comp, params); |
d8866baa | 398 | if (ret) { |
d94d92ac | 399 | BT_LOGE("Invalid parameters: comp-addr=%p", self_comp); |
d8866baa PP |
400 | goto error; |
401 | } | |
402 | ||
33ec5dfa PP |
403 | if (!dmesg_comp->params.read_from_stdin && |
404 | !g_file_test(dmesg_comp->params.path->str, | |
405 | G_FILE_TEST_IS_REGULAR)) { | |
406 | BT_LOGE("Input path is not a regular file: " | |
d94d92ac | 407 | "comp-addr=%p, path=\"%s\"", self_comp, |
33ec5dfa PP |
408 | dmesg_comp->params.path->str); |
409 | goto error; | |
410 | } | |
d8866baa | 411 | |
d94d92ac PP |
412 | status = create_port(self_comp); |
413 | if (status != BT_SELF_COMPONENT_STATUS_OK) { | |
33ec5dfa PP |
414 | goto error; |
415 | } | |
d8866baa | 416 | |
d94d92ac | 417 | bt_self_component_set_data( |
707b7d35 | 418 | bt_self_component_source_as_self_component(self_comp), |
d94d92ac | 419 | dmesg_comp); |
d8866baa PP |
420 | goto end; |
421 | ||
422 | error: | |
423 | destroy_dmesg_component(dmesg_comp); | |
d94d92ac | 424 | bt_self_component_set_data( |
707b7d35 | 425 | bt_self_component_source_as_self_component(self_comp), |
d94d92ac | 426 | NULL); |
33ec5dfa PP |
427 | |
428 | if (status >= 0) { | |
d94d92ac | 429 | status = BT_SELF_COMPONENT_STATUS_ERROR; |
33ec5dfa | 430 | } |
d8866baa PP |
431 | |
432 | end: | |
433 | return status; | |
434 | } | |
435 | ||
436 | BT_HIDDEN | |
b19ff26f | 437 | void dmesg_finalize(bt_self_component_source *self_comp) |
d8866baa | 438 | { |
d94d92ac | 439 | destroy_dmesg_component(bt_self_component_get_data( |
707b7d35 | 440 | bt_self_component_source_as_self_component(self_comp))); |
33ec5dfa PP |
441 | } |
442 | ||
443 | static | |
d6e69534 PP |
444 | bt_message *create_init_event_msg_from_line( |
445 | struct dmesg_msg_iter *msg_iter, | |
312c056a | 446 | const char *line, const char **new_start) |
33ec5dfa | 447 | { |
b19ff26f | 448 | bt_event *event; |
d6e69534 | 449 | bt_message *msg = NULL; |
33ec5dfa PP |
450 | bool has_timestamp = false; |
451 | unsigned long sec, usec, msec; | |
452 | unsigned int year, mon, mday, hour, min; | |
453 | uint64_t ts = 0; | |
33ec5dfa | 454 | int ret = 0; |
d6e69534 | 455 | struct dmesg_component *dmesg_comp = msg_iter->dmesg_comp; |
33ec5dfa | 456 | |
33ec5dfa PP |
457 | *new_start = line; |
458 | ||
707b323a PP |
459 | if (dmesg_comp->params.no_timestamp) { |
460 | goto skip_ts; | |
461 | } | |
462 | ||
33ec5dfa PP |
463 | /* Extract time from input line */ |
464 | if (sscanf(line, "[%lu.%lu] ", &sec, &usec) == 2) { | |
465 | ts = (uint64_t) sec * USEC_PER_SEC + (uint64_t) usec; | |
466 | ||
467 | /* | |
468 | * The clock class we use has a 1 GHz frequency: convert | |
469 | * from µs to ns. | |
470 | */ | |
471 | ts *= NSEC_PER_USEC; | |
472 | has_timestamp = true; | |
473 | } else if (sscanf(line, "[%u-%u-%u %u:%u:%lu.%lu] ", | |
474 | &year, &mon, &mday, &hour, &min, | |
475 | &sec, &msec) == 7) { | |
476 | time_t ep_sec; | |
477 | struct tm ti; | |
478 | ||
479 | memset(&ti, 0, sizeof(ti)); | |
480 | ti.tm_year = year - 1900; /* From 1900 */ | |
481 | ti.tm_mon = mon - 1; /* 0 to 11 */ | |
482 | ti.tm_mday = mday; | |
483 | ti.tm_hour = hour; | |
484 | ti.tm_min = min; | |
485 | ti.tm_sec = sec; | |
486 | ||
487 | ep_sec = bt_timegm(&ti); | |
488 | if (ep_sec != (time_t) -1) { | |
489 | ts = (uint64_t) ep_sec * NSEC_PER_SEC | |
490 | + (uint64_t) msec * NSEC_PER_MSEC; | |
491 | } | |
492 | ||
493 | has_timestamp = true; | |
494 | } | |
495 | ||
496 | if (has_timestamp) { | |
497 | /* Set new start for the message portion of the line */ | |
498 | *new_start = strchr(line, ']'); | |
f6ccaed9 | 499 | BT_ASSERT(*new_start); |
33ec5dfa PP |
500 | (*new_start)++; |
501 | ||
502 | if ((*new_start)[0] == ' ') { | |
503 | (*new_start)++; | |
504 | } | |
505 | } | |
506 | ||
707b323a | 507 | skip_ts: |
33ec5dfa PP |
508 | /* |
509 | * At this point, we know if the stream class's event header | |
5cd6d0e5 | 510 | * field class should have a timestamp or not, so we can lazily |
33ec5dfa PP |
511 | * create the metadata, stream, and packet objects. |
512 | */ | |
513 | ret = try_create_meta_stream_packet(dmesg_comp, has_timestamp); | |
514 | if (ret) { | |
515 | /* try_create_meta_stream_packet() logs errors */ | |
516 | goto error; | |
517 | } | |
518 | ||
d6e69534 | 519 | msg = bt_message_event_create(msg_iter->pc_msg_iter, |
e22b45d0 | 520 | dmesg_comp->event_class, dmesg_comp->packet); |
d6e69534 PP |
521 | if (!msg) { |
522 | BT_LOGE_STR("Cannot create event message."); | |
312c056a PP |
523 | goto error; |
524 | } | |
33ec5dfa | 525 | |
d6e69534 | 526 | event = bt_message_event_borrow_event(msg); |
312c056a | 527 | BT_ASSERT(event); |
33ec5dfa | 528 | |
312c056a | 529 | if (dmesg_comp->clock_class) { |
605e1019 | 530 | bt_event_set_default_clock_snapshot(event, ts); |
a6d85d2f | 531 | msg_iter->last_clock_value = ts; |
33ec5dfa PP |
532 | } |
533 | ||
534 | goto end; | |
535 | ||
536 | error: | |
d6e69534 | 537 | BT_MESSAGE_PUT_REF_AND_RESET(msg); |
33ec5dfa PP |
538 | |
539 | end: | |
d6e69534 | 540 | return msg; |
33ec5dfa PP |
541 | } |
542 | ||
543 | static | |
e5be10ef | 544 | int fill_event_payload_from_line(const char *line, |
b19ff26f | 545 | bt_event *event) |
33ec5dfa | 546 | { |
b19ff26f PP |
547 | bt_field *ep_field = NULL; |
548 | bt_field *str_field = NULL; | |
33ec5dfa PP |
549 | size_t len; |
550 | int ret; | |
551 | ||
40f4ba76 | 552 | ep_field = bt_event_borrow_payload_field(event); |
312c056a | 553 | BT_ASSERT(ep_field); |
40f4ba76 | 554 | str_field = bt_field_structure_borrow_member_field_by_index( |
e5be10ef | 555 | ep_field, 0); |
33ec5dfa | 556 | if (!str_field) { |
312c056a | 557 | BT_LOGE_STR("Cannot borrow `timestamp` field from event payload structure field."); |
33ec5dfa PP |
558 | goto error; |
559 | } | |
560 | ||
561 | len = strlen(line); | |
562 | if (line[len - 1] == '\n') { | |
563 | /* Do not include the newline character in the payload */ | |
564 | len--; | |
565 | } | |
566 | ||
40f4ba76 | 567 | ret = bt_field_string_clear(str_field); |
312c056a PP |
568 | if (ret) { |
569 | BT_LOGE_STR("Cannot clear string field object."); | |
570 | goto error; | |
571 | } | |
572 | ||
40f4ba76 | 573 | ret = bt_field_string_append_with_length(str_field, line, len); |
33ec5dfa PP |
574 | if (ret) { |
575 | BT_LOGE("Cannot append value to string field object: " | |
576 | "len=%zu", len); | |
577 | goto error; | |
578 | } | |
579 | ||
33ec5dfa PP |
580 | goto end; |
581 | ||
582 | error: | |
583 | ret = -1; | |
584 | ||
585 | end: | |
33ec5dfa PP |
586 | return ret; |
587 | } | |
588 | ||
589 | static | |
d6e69534 PP |
590 | bt_message *create_msg_from_line( |
591 | struct dmesg_msg_iter *dmesg_msg_iter, const char *line) | |
33ec5dfa | 592 | { |
b19ff26f | 593 | bt_event *event = NULL; |
d6e69534 | 594 | bt_message *msg = NULL; |
33ec5dfa PP |
595 | const char *new_start; |
596 | int ret; | |
597 | ||
d6e69534 | 598 | msg = create_init_event_msg_from_line(dmesg_msg_iter, |
f0010051 | 599 | line, &new_start); |
d6e69534 PP |
600 | if (!msg) { |
601 | BT_LOGE_STR("Cannot create and initialize event message from line."); | |
33ec5dfa PP |
602 | goto error; |
603 | } | |
604 | ||
d6e69534 | 605 | event = bt_message_event_borrow_event(msg); |
312c056a | 606 | BT_ASSERT(event); |
f0010051 | 607 | ret = fill_event_payload_from_line(new_start, event); |
33ec5dfa | 608 | if (ret) { |
312c056a | 609 | BT_LOGE("Cannot fill event payload field from line: " |
33ec5dfa PP |
610 | "ret=%d", ret); |
611 | goto error; | |
612 | } | |
613 | ||
33ec5dfa PP |
614 | goto end; |
615 | ||
616 | error: | |
d6e69534 | 617 | BT_MESSAGE_PUT_REF_AND_RESET(msg); |
33ec5dfa PP |
618 | |
619 | end: | |
d6e69534 | 620 | return msg; |
33ec5dfa PP |
621 | } |
622 | ||
623 | static | |
d6e69534 | 624 | void destroy_dmesg_msg_iter(struct dmesg_msg_iter *dmesg_msg_iter) |
33ec5dfa | 625 | { |
d6e69534 | 626 | if (!dmesg_msg_iter) { |
33ec5dfa PP |
627 | return; |
628 | } | |
629 | ||
d6e69534 PP |
630 | if (dmesg_msg_iter->fp && dmesg_msg_iter->fp != stdin) { |
631 | if (fclose(dmesg_msg_iter->fp)) { | |
33ec5dfa PP |
632 | BT_LOGE_ERRNO("Cannot close input file", "."); |
633 | } | |
634 | } | |
d8866baa | 635 | |
d6e69534 PP |
636 | bt_message_put_ref(dmesg_msg_iter->tmp_event_msg); |
637 | free(dmesg_msg_iter->linebuf); | |
638 | g_free(dmesg_msg_iter); | |
d8866baa PP |
639 | } |
640 | ||
641 | BT_HIDDEN | |
4cdfc5e8 | 642 | bt_self_message_iterator_status dmesg_msg_iter_init( |
d6e69534 | 643 | bt_self_message_iterator *self_msg_iter, |
b19ff26f PP |
644 | bt_self_component_source *self_comp, |
645 | bt_self_component_port_output *self_port) | |
d8866baa | 646 | { |
33ec5dfa | 647 | struct dmesg_component *dmesg_comp; |
d6e69534 PP |
648 | struct dmesg_msg_iter *dmesg_msg_iter = |
649 | g_new0(struct dmesg_msg_iter, 1); | |
4cdfc5e8 | 650 | bt_self_message_iterator_status status = |
d6e69534 | 651 | BT_SELF_MESSAGE_ITERATOR_STATUS_OK; |
33ec5dfa | 652 | |
d6e69534 PP |
653 | if (!dmesg_msg_iter) { |
654 | BT_LOGE_STR("Failed to allocate on dmesg message iterator structure."); | |
33ec5dfa PP |
655 | goto error; |
656 | } | |
657 | ||
d94d92ac | 658 | dmesg_comp = bt_self_component_get_data( |
707b7d35 | 659 | bt_self_component_source_as_self_component(self_comp)); |
f6ccaed9 | 660 | BT_ASSERT(dmesg_comp); |
d6e69534 PP |
661 | dmesg_msg_iter->dmesg_comp = dmesg_comp; |
662 | dmesg_msg_iter->pc_msg_iter = self_msg_iter; | |
d8866baa | 663 | |
33ec5dfa | 664 | if (dmesg_comp->params.read_from_stdin) { |
d6e69534 | 665 | dmesg_msg_iter->fp = stdin; |
33ec5dfa | 666 | } else { |
d6e69534 PP |
667 | dmesg_msg_iter->fp = fopen(dmesg_comp->params.path->str, "r"); |
668 | if (!dmesg_msg_iter->fp) { | |
33ec5dfa PP |
669 | BT_LOGE_ERRNO("Cannot open input file in read mode", ": path=\"%s\"", |
670 | dmesg_comp->params.path->str); | |
671 | goto error; | |
672 | } | |
673 | } | |
674 | ||
d6e69534 PP |
675 | bt_self_message_iterator_set_data(self_msg_iter, |
676 | dmesg_msg_iter); | |
33ec5dfa PP |
677 | goto end; |
678 | ||
679 | error: | |
d6e69534 PP |
680 | destroy_dmesg_msg_iter(dmesg_msg_iter); |
681 | bt_self_message_iterator_set_data(self_msg_iter, NULL); | |
33ec5dfa | 682 | if (status >= 0) { |
d6e69534 | 683 | status = BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR; |
33ec5dfa PP |
684 | } |
685 | ||
686 | end: | |
33ec5dfa | 687 | return status; |
d8866baa PP |
688 | } |
689 | ||
690 | BT_HIDDEN | |
d6e69534 PP |
691 | void dmesg_msg_iter_finalize( |
692 | bt_self_message_iterator *priv_msg_iter) | |
d8866baa | 693 | { |
d6e69534 PP |
694 | destroy_dmesg_msg_iter(bt_self_message_iterator_get_data( |
695 | priv_msg_iter)); | |
d8866baa PP |
696 | } |
697 | ||
d4393e08 | 698 | static |
4cdfc5e8 | 699 | bt_self_message_iterator_status dmesg_msg_iter_next_one( |
d6e69534 PP |
700 | struct dmesg_msg_iter *dmesg_msg_iter, |
701 | bt_message **msg) | |
d8866baa | 702 | { |
33ec5dfa | 703 | ssize_t len; |
33ec5dfa | 704 | struct dmesg_component *dmesg_comp; |
4cdfc5e8 | 705 | bt_self_message_iterator_status status = |
d6e69534 | 706 | BT_SELF_MESSAGE_ITERATOR_STATUS_OK; |
d8866baa | 707 | |
d6e69534 PP |
708 | BT_ASSERT(dmesg_msg_iter); |
709 | dmesg_comp = dmesg_msg_iter->dmesg_comp; | |
f6ccaed9 | 710 | BT_ASSERT(dmesg_comp); |
33ec5dfa | 711 | |
d6e69534 PP |
712 | if (dmesg_msg_iter->state == STATE_DONE) { |
713 | status = BT_SELF_MESSAGE_ITERATOR_STATUS_END; | |
312c056a PP |
714 | goto end; |
715 | } | |
716 | ||
d6e69534 PP |
717 | if (dmesg_msg_iter->tmp_event_msg || |
718 | dmesg_msg_iter->state == STATE_EMIT_PACKET_END || | |
a59806b7 | 719 | dmesg_msg_iter->state == STATE_EMIT_STREAM_ACTIVITY_END || |
d6e69534 | 720 | dmesg_msg_iter->state == STATE_EMIT_STREAM_END) { |
312c056a PP |
721 | goto handle_state; |
722 | } | |
723 | ||
33ec5dfa PP |
724 | while (true) { |
725 | const char *ch; | |
726 | bool only_spaces = true; | |
727 | ||
d6e69534 PP |
728 | len = bt_getline(&dmesg_msg_iter->linebuf, |
729 | &dmesg_msg_iter->linebuf_len, dmesg_msg_iter->fp); | |
33ec5dfa PP |
730 | if (len < 0) { |
731 | if (errno == EINVAL) { | |
d6e69534 | 732 | status = BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR; |
33ec5dfa | 733 | } else if (errno == ENOMEM) { |
d4393e08 | 734 | status = |
d6e69534 | 735 | BT_SELF_MESSAGE_ITERATOR_STATUS_NOMEM; |
33ec5dfa | 736 | } else { |
d6e69534 | 737 | if (dmesg_msg_iter->state == STATE_EMIT_STREAM_BEGINNING) { |
312c056a | 738 | /* Stream did not even begin */ |
d6e69534 | 739 | status = BT_SELF_MESSAGE_ITERATOR_STATUS_END; |
312c056a PP |
740 | goto end; |
741 | } else { | |
742 | /* End current packet now */ | |
d6e69534 | 743 | dmesg_msg_iter->state = |
312c056a PP |
744 | STATE_EMIT_PACKET_END; |
745 | goto handle_state; | |
746 | } | |
33ec5dfa PP |
747 | } |
748 | ||
749 | goto end; | |
750 | } | |
751 | ||
d6e69534 | 752 | BT_ASSERT(dmesg_msg_iter->linebuf); |
33ec5dfa PP |
753 | |
754 | /* Ignore empty lines, once trimmed */ | |
d6e69534 | 755 | for (ch = dmesg_msg_iter->linebuf; *ch != '\0'; ch++) { |
33ec5dfa PP |
756 | if (!isspace(*ch)) { |
757 | only_spaces = false; | |
758 | break; | |
759 | } | |
760 | } | |
761 | ||
762 | if (!only_spaces) { | |
763 | break; | |
764 | } | |
765 | } | |
766 | ||
d6e69534 PP |
767 | dmesg_msg_iter->tmp_event_msg = create_msg_from_line( |
768 | dmesg_msg_iter, dmesg_msg_iter->linebuf); | |
769 | if (!dmesg_msg_iter->tmp_event_msg) { | |
770 | BT_LOGE("Cannot create event message from line: " | |
33ec5dfa | 771 | "dmesg-comp-addr=%p, line=\"%s\"", dmesg_comp, |
d6e69534 | 772 | dmesg_msg_iter->linebuf); |
312c056a PP |
773 | goto end; |
774 | } | |
775 | ||
776 | handle_state: | |
777 | BT_ASSERT(dmesg_comp->trace); | |
778 | ||
d6e69534 | 779 | switch (dmesg_msg_iter->state) { |
312c056a | 780 | case STATE_EMIT_STREAM_BEGINNING: |
d6e69534 PP |
781 | BT_ASSERT(dmesg_msg_iter->tmp_event_msg); |
782 | *msg = bt_message_stream_beginning_create( | |
783 | dmesg_msg_iter->pc_msg_iter, dmesg_comp->stream); | |
a59806b7 PP |
784 | dmesg_msg_iter->state = STATE_EMIT_STREAM_ACTIVITY_BEGINNING; |
785 | break; | |
786 | case STATE_EMIT_STREAM_ACTIVITY_BEGINNING: | |
787 | BT_ASSERT(dmesg_msg_iter->tmp_event_msg); | |
788 | *msg = bt_message_stream_activity_beginning_create( | |
789 | dmesg_msg_iter->pc_msg_iter, dmesg_comp->stream); | |
d6e69534 | 790 | dmesg_msg_iter->state = STATE_EMIT_PACKET_BEGINNING; |
312c056a PP |
791 | break; |
792 | case STATE_EMIT_PACKET_BEGINNING: | |
d6e69534 | 793 | BT_ASSERT(dmesg_msg_iter->tmp_event_msg); |
a6d85d2f PP |
794 | |
795 | if (dmesg_comp->clock_class) { | |
796 | *msg = bt_message_packet_beginning_create_with_default_clock_snapshot( | |
797 | dmesg_msg_iter->pc_msg_iter, dmesg_comp->packet, | |
798 | dmesg_msg_iter->last_clock_value); | |
799 | } else { | |
800 | *msg = bt_message_packet_beginning_create( | |
801 | dmesg_msg_iter->pc_msg_iter, dmesg_comp->packet); | |
802 | } | |
803 | ||
d6e69534 | 804 | dmesg_msg_iter->state = STATE_EMIT_EVENT; |
312c056a PP |
805 | break; |
806 | case STATE_EMIT_EVENT: | |
d6e69534 PP |
807 | BT_ASSERT(dmesg_msg_iter->tmp_event_msg); |
808 | *msg = dmesg_msg_iter->tmp_event_msg; | |
809 | dmesg_msg_iter->tmp_event_msg = NULL; | |
312c056a PP |
810 | break; |
811 | case STATE_EMIT_PACKET_END: | |
a6d85d2f PP |
812 | if (dmesg_comp->clock_class) { |
813 | *msg = bt_message_packet_end_create_with_default_clock_snapshot( | |
814 | dmesg_msg_iter->pc_msg_iter, dmesg_comp->packet, | |
815 | dmesg_msg_iter->last_clock_value); | |
816 | } else { | |
817 | *msg = bt_message_packet_end_create( | |
818 | dmesg_msg_iter->pc_msg_iter, dmesg_comp->packet); | |
819 | } | |
820 | ||
a59806b7 PP |
821 | dmesg_msg_iter->state = STATE_EMIT_STREAM_ACTIVITY_END; |
822 | break; | |
823 | case STATE_EMIT_STREAM_ACTIVITY_END: | |
824 | *msg = bt_message_stream_activity_end_create( | |
825 | dmesg_msg_iter->pc_msg_iter, dmesg_comp->stream); | |
d6e69534 | 826 | dmesg_msg_iter->state = STATE_EMIT_STREAM_END; |
312c056a PP |
827 | break; |
828 | case STATE_EMIT_STREAM_END: | |
d6e69534 PP |
829 | *msg = bt_message_stream_end_create( |
830 | dmesg_msg_iter->pc_msg_iter, dmesg_comp->stream); | |
831 | dmesg_msg_iter->state = STATE_DONE; | |
312c056a PP |
832 | break; |
833 | default: | |
834 | break; | |
835 | } | |
836 | ||
d6e69534 PP |
837 | if (!*msg) { |
838 | BT_LOGE("Cannot create message: dmesg-comp-addr=%p", | |
312c056a | 839 | dmesg_comp); |
d6e69534 | 840 | status = BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR; |
33ec5dfa PP |
841 | } |
842 | ||
843 | end: | |
d4393e08 PP |
844 | return status; |
845 | } | |
846 | ||
847 | BT_HIDDEN | |
4cdfc5e8 | 848 | bt_self_message_iterator_status dmesg_msg_iter_next( |
d6e69534 PP |
849 | bt_self_message_iterator *self_msg_iter, |
850 | bt_message_array_const msgs, uint64_t capacity, | |
d4393e08 PP |
851 | uint64_t *count) |
852 | { | |
d6e69534 PP |
853 | struct dmesg_msg_iter *dmesg_msg_iter = |
854 | bt_self_message_iterator_get_data( | |
855 | self_msg_iter); | |
4cdfc5e8 | 856 | bt_self_message_iterator_status status = |
d6e69534 | 857 | BT_SELF_MESSAGE_ITERATOR_STATUS_OK; |
d4393e08 PP |
858 | uint64_t i = 0; |
859 | ||
d94d92ac | 860 | while (i < capacity && |
d6e69534 PP |
861 | status == BT_SELF_MESSAGE_ITERATOR_STATUS_OK) { |
862 | bt_message *priv_msg = NULL; | |
e5be10ef | 863 | |
d6e69534 PP |
864 | status = dmesg_msg_iter_next_one(dmesg_msg_iter, |
865 | &priv_msg); | |
866 | msgs[i] = priv_msg; | |
867 | if (status == BT_SELF_MESSAGE_ITERATOR_STATUS_OK) { | |
d4393e08 PP |
868 | i++; |
869 | } | |
870 | } | |
871 | ||
872 | if (i > 0) { | |
873 | /* | |
d6e69534 | 874 | * Even if dmesg_msg_iter_next_one() returned |
d4393e08 | 875 | * something else than |
d6e69534 PP |
876 | * BT_SELF_MESSAGE_ITERATOR_STATUS_OK, we |
877 | * accumulated message objects in the output | |
878 | * message array, so we need to return | |
879 | * BT_SELF_MESSAGE_ITERATOR_STATUS_OK so that they | |
d94d92ac | 880 | * are transfered to downstream. This other status |
d6e69534 | 881 | * occurs again the next time muxer_msg_iter_do_next() |
d94d92ac | 882 | * is called, possibly without any accumulated |
d6e69534 | 883 | * message, in which case we'll return it. |
d4393e08 PP |
884 | */ |
885 | *count = i; | |
d6e69534 | 886 | status = BT_SELF_MESSAGE_ITERATOR_STATUS_OK; |
d4393e08 PP |
887 | } |
888 | ||
889 | return status; | |
d8866baa | 890 | } |