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