projects / babeltrace.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Implement ctf-metadata output plugin
[babeltrace.git] / formats / ctf-text / ctf-text.c
CommitLineData
642ec66d
MD		 1/*
2 * BabelTrace - Common Trace Format (CTF)
3 *
4 * CTF Text Format registration.
5 *
64fa3fec
MD		 6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
7 *
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
642ec66d
MD		 9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
c462e188
MD		 19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * SOFTWARE.
642ec66d
MD		 27 */
28
29#include <babeltrace/format.h>
30#include <babeltrace/ctf-text/types.h>
31262354 31#include <babeltrace/ctf/metadata.h>
70bd0a12 32#include <babeltrace/babeltrace-internal.h>
e4195791 33#include <babeltrace/ctf/events-internal.h>
642ec66d 34#include <inttypes.h>
642ec66d
MD		 35#include <sys/mman.h>
36#include <errno.h>
37#include <sys/types.h>
38#include <sys/stat.h>
39#include <fcntl.h>
40#include <dirent.h>
41#include <glib.h>
42#include <unistd.h>
43#include <stdlib.h>
44
bfe74b8c
MD		 45#define NSEC_PER_SEC 1000000000ULL
46
cba1661c
MD		 47int opt_all_field_names,
48 opt_scope_field_names,
49 opt_header_field_names,
50 opt_context_field_names,
82662ad4 51 opt_payload_field_names,
359d7456
MD		 52 opt_all_fields,
53 opt_trace_field,
54 opt_trace_domain_field,
55 opt_trace_procname_field,
56 opt_trace_vpid_field,
32cfb8ad 57 opt_trace_hostname_field,
c3815874 58 opt_trace_default_fields = 1,
359d7456 59 opt_loglevel_field,
f6714e20 60 opt_emf_field,
f133896d 61 opt_callsite_field,
7d97fad9 62 opt_delta_field = 1;
cba1661c
MD		 63
64enum field_item {
65 ITEM_SCOPE,
66 ITEM_HEADER,
67 ITEM_CONTEXT,
68 ITEM_PAYLOAD,
69};
b88d6e85 70
39535929
MD		 71enum bt_loglevel {
72 BT_LOGLEVEL_EMERG = 0,
73 BT_LOGLEVEL_ALERT = 1,
74 BT_LOGLEVEL_CRIT = 2,
75 BT_LOGLEVEL_ERR = 3,
76 BT_LOGLEVEL_WARNING = 4,
77 BT_LOGLEVEL_NOTICE = 5,
78 BT_LOGLEVEL_INFO = 6,
79 BT_LOGLEVEL_DEBUG_SYSTEM = 7,
80 BT_LOGLEVEL_DEBUG_PROGRAM = 8,
81 BT_LOGLEVEL_DEBUG_PROCESS = 9,
82 BT_LOGLEVEL_DEBUG_MODULE = 10,
83 BT_LOGLEVEL_DEBUG_UNIT = 11,
84 BT_LOGLEVEL_DEBUG_FUNCTION = 12,
85 BT_LOGLEVEL_DEBUG_LINE = 13,
86 BT_LOGLEVEL_DEBUG = 14,
87};
88
95febab3 89static
1b8455b7 90struct bt_trace_descriptor *ctf_text_open_trace(const char *path, int flags,
1cf393f6 91 void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
ae23d232 92 int whence), FILE *metadata_fp);
95febab3 93static
1b8455b7 94int ctf_text_close_trace(struct bt_trace_descriptor *descriptor);
642ec66d 95
7237592a
MD		 96static
97struct bt_trace_descriptor *ctf_metadata_open_trace(const char *path, int flags,
98 void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
99 int whence), FILE *metadata_fp);
100static
101int ctf_metadata_close_trace(struct bt_trace_descriptor *descriptor);
102
642ec66d
MD		 103static
104rw_dispatch write_dispatch_table[] = {
105 [ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
106 [ CTF_TYPE_FLOAT ] = ctf_text_float_write,
107 [ CTF_TYPE_ENUM ] = ctf_text_enum_write,
108 [ CTF_TYPE_STRING ] = ctf_text_string_write,
109 [ CTF_TYPE_STRUCT ] = ctf_text_struct_write,
110 [ CTF_TYPE_VARIANT ] = ctf_text_variant_write,
111 [ CTF_TYPE_ARRAY ] = ctf_text_array_write,
112 [ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write,
113};
114
115static
37b99bdb 116struct bt_format ctf_text_format = {
642ec66d
MD		 117 .open_trace = ctf_text_open_trace,
118 .close_trace = ctf_text_close_trace,
119};
120
7237592a
MD		 121static
122struct bt_format ctf_metadata_format = {
123 .open_trace = ctf_metadata_open_trace,
124 .close_trace = ctf_metadata_close_trace,
125};
126
d335f0f7
MD		 127static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN,
128 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END,
129 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED,
130 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE,
131 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE;
132
133static
134void __attribute__((constructor)) init_quarks(void)
135{
136 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN = g_quark_from_static_string("stream.packet.context.timestamp_begin");
137 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END = g_quark_from_static_string("stream.packet.context.timestamp_end");
138 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED = g_quark_from_static_string("stream.packet.context.events_discarded");
139 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE = g_quark_from_static_string("stream.packet.context.content_size");
140 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE = g_quark_from_static_string("stream.packet.context.packet_size");
141}
142
f133896d 143static
c5ff71a3 144struct ctf_callsite_dups *ctf_trace_callsite_lookup(struct ctf_trace *trace,
f133896d
MD		 145 GQuark callsite_name)
146{
147 return g_hash_table_lookup(trace->callsites,
148 (gpointer) (unsigned long) callsite_name);
149}
150
0d69b916 151int print_field(struct bt_definition *definition)
d335f0f7
MD		 152{
153 /* Print all fields in verbose mode */
154 if (babeltrace_verbose)
155 return 1;
156
157 /* Filter out part of the packet context */
158 if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN)
159 return 0;
160 if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END)
161 return 0;
162 if (definition->path == Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED)
163 return 0;
164 if (definition->path == Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE)
165 return 0;
166 if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SIZE)
167 return 0;
168
169 return 1;
170}
171
cba1661c
MD		 172static
173void set_field_names_print(struct ctf_text_stream_pos *pos, enum field_item item)
174{
175 switch (item) {
176 case ITEM_SCOPE:
177 if (opt_all_field_names || opt_scope_field_names)
178 pos->print_names = 1;
179 else
180 pos->print_names = 0;
181 break;
182 case ITEM_HEADER:
183 if (opt_all_field_names || opt_header_field_names)
184 pos->print_names = 1;
185 else
186 pos->print_names = 0;
187 break;
188 case ITEM_CONTEXT:
189 if (opt_all_field_names || opt_context_field_names)
190 pos->print_names = 1;
191 else
192 pos->print_names = 0;
193 break;
194 case ITEM_PAYLOAD:
195 if (opt_all_field_names || opt_payload_field_names)
196 pos->print_names = 1;
197 else
198 pos->print_names = 0;
199
200 break;
201 default:
202 assert(0);
203 }
204}
205
39535929
MD		 206static
207const char *print_loglevel(int value)
208{
209 switch (value) {
210 case -1:
211 return "";
212 case BT_LOGLEVEL_EMERG:
213 return "TRACE_EMERG";
214 case BT_LOGLEVEL_ALERT:
215 return "TRACE_ALERT";
216 case BT_LOGLEVEL_CRIT:
217 return "TRACE_CRIT";
218 case BT_LOGLEVEL_ERR:
219 return "TRACE_ERR";
220 case BT_LOGLEVEL_WARNING:
221 return "TRACE_WARNING";
222 case BT_LOGLEVEL_NOTICE:
223 return "TRACE_NOTICE";
224 case BT_LOGLEVEL_INFO:
225 return "TRACE_INFO";
226 case BT_LOGLEVEL_DEBUG_SYSTEM:
227 return "TRACE_DEBUG_SYSTEM";
228 case BT_LOGLEVEL_DEBUG_PROGRAM:
229 return "TRACE_DEBUG_PROGRAM";
230 case BT_LOGLEVEL_DEBUG_PROCESS:
231 return "TRACE_DEBUG_PROCESS";
232 case BT_LOGLEVEL_DEBUG_MODULE:
233 return "TRACE_DEBUG_MODULE";
234 case BT_LOGLEVEL_DEBUG_UNIT:
235 return "TRACE_DEBUG_UNIT";
236 case BT_LOGLEVEL_DEBUG_FUNCTION:
237 return "TRACE_DEBUG_FUNCTION";
238 case BT_LOGLEVEL_DEBUG_LINE:
239 return "TRACE_DEBUG_LINE";
240 case BT_LOGLEVEL_DEBUG:
241 return "TRACE_DEBUG";
242 default:
243 return "<<UNKNOWN>>";
244 }
245}
246
31262354 247static
1cf393f6 248int ctf_text_write_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream)
e4195791 249
31262354
MD		 250{
251 struct ctf_text_stream_pos *pos =
252 container_of(ppos, struct ctf_text_stream_pos, parent);
f380e105 253 struct ctf_stream_declaration *stream_class = stream->stream_class;
fd3382e8 254 int field_nr_saved;
4716614a 255 struct ctf_event_declaration *event_class;
c716f83b 256 struct ctf_event_definition *event;
c87a8eb2 257 uint64_t id;
31262354 258 int ret;
8c250d87 259 int dom_print = 0;
31262354 260
c87a8eb2 261 id = stream->event_id;
31262354
MD		 262
263 if (id >= stream_class->events_by_id->len) {
3394d22e 264 fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id);
31262354
MD		 265 return -EINVAL;
266 }
e28d4618
MD		 267 event = g_ptr_array_index(stream->events_by_id, id);
268 if (!event) {
3394d22e 269 fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id);
e28d4618
MD		 270 return -EINVAL;
271 }
31262354 272 event_class = g_ptr_array_index(stream_class->events_by_id, id);
9ff2b8ad
FO		 273 if (!event_class) {
274 fprintf(stderr, "[error] Event class id %" PRIu64 " is unknown.\n", id);
31262354
MD		 275 return -EINVAL;
276 }
277
fca04958
MD		 278 /* Print events discarded */
279 if (stream->events_discarded) {
7d97fad9 280 fflush(pos->fp);
c829a65c 281 ctf_print_discarded(stderr, stream, 0);
fca04958
MD		 282 stream->events_discarded = 0;
283 }
284
5e2eb0ae 285 if (stream->has_timestamp) {
cba1661c 286 set_field_names_print(pos, ITEM_HEADER);
be60c7fb
MD		 287 if (pos->print_names)
288 fprintf(pos->fp, "timestamp = ");
289 else
290 fprintf(pos->fp, "[");
03798a93
JD		 291 if (opt_clock_cycles) {
292 ctf_print_timestamp(pos->fp, stream, stream->cycles_timestamp);
293 } else {
294 ctf_print_timestamp(pos->fp, stream, stream->real_timestamp);
295 }
be60c7fb
MD		 296 if (!pos->print_names)
297 fprintf(pos->fp, "]");
aa6bffae 298
be60c7fb
MD		 299 if (pos->print_names)
300 fprintf(pos->fp, ", ");
301 else
302 fprintf(pos->fp, " ");
303 }
e4497aa0 304 if (opt_delta_field && stream->has_timestamp) {
8d8ed9af
MD		 305 uint64_t delta, delta_sec, delta_nsec;
306
307 set_field_names_print(pos, ITEM_HEADER);
308 if (pos->print_names)
309 fprintf(pos->fp, "delta = ");
310 else
311 fprintf(pos->fp, "(");
03798a93
JD		 312 if (pos->last_real_timestamp != -1ULL) {
313 delta = stream->real_timestamp - pos->last_real_timestamp;
8d8ed9af
MD		 314 delta_sec = delta / NSEC_PER_SEC;
315 delta_nsec = delta % NSEC_PER_SEC;
316 fprintf(pos->fp, "+%" PRIu64 ".%09" PRIu64,
317 delta_sec, delta_nsec);
318 } else {
319 fprintf(pos->fp, "+?.?????????");
320 }
321 if (!pos->print_names)
322 fprintf(pos->fp, ")");
323
324 if (pos->print_names)
325 fprintf(pos->fp, ", ");
326 else
327 fprintf(pos->fp, " ");
03798a93
JD		 328 pos->last_real_timestamp = stream->real_timestamp;
329 pos->last_cycles_timestamp = stream->cycles_timestamp;
8d8ed9af
MD		 330 }
331
359d7456 332 if ((opt_trace_field || opt_all_fields) && stream_class->trace->path[0] != '\0') {
82662ad4 333 set_field_names_print(pos, ITEM_HEADER);
8c250d87 334 if (pos->print_names) {
359d7456 335 fprintf(pos->fp, "trace = ");
8c250d87 336 }
82662ad4 337 fprintf(pos->fp, "%s", stream_class->trace->path);
82662ad4
MD		 338 if (pos->print_names)
339 fprintf(pos->fp, ", ");
340 else
341 fprintf(pos->fp, " ");
342 }
c3815874
MD		 343 if ((opt_trace_hostname_field || opt_all_fields || opt_trace_default_fields)
344 && stream_class->trace->env.hostname[0] != '\0') {
32cfb8ad
MD		 345 set_field_names_print(pos, ITEM_HEADER);
346 if (pos->print_names) {
347 fprintf(pos->fp, "trace:hostname = ");
348 }
349 fprintf(pos->fp, "%s", stream_class->trace->env.hostname);
350 if (pos->print_names)
351 fprintf(pos->fp, ", ");
352 dom_print = 1;
353 }
c3815874 354 if ((opt_trace_domain_field || opt_all_fields) && stream_class->trace->env.domain[0] != '\0') {
8c250d87
MD		 355 set_field_names_print(pos, ITEM_HEADER);
356 if (pos->print_names) {
357 fprintf(pos->fp, "trace:domain = ");
358 }
1842a4c8 359 fprintf(pos->fp, "%s", stream_class->trace->env.domain);
8c250d87
MD		 360 if (pos->print_names)
361 fprintf(pos->fp, ", ");
362 dom_print = 1;
363 }
c3815874
MD		 364 if ((opt_trace_procname_field || opt_all_fields || opt_trace_default_fields)
365 && stream_class->trace->env.procname[0] != '\0') {
8c250d87
MD		 366 set_field_names_print(pos, ITEM_HEADER);
367 if (pos->print_names) {
368 fprintf(pos->fp, "trace:procname = ");
369 } else if (dom_print) {
370 fprintf(pos->fp, ":");
371 }
1842a4c8 372 fprintf(pos->fp, "%s", stream_class->trace->env.procname);
8c250d87
MD		 373 if (pos->print_names)
374 fprintf(pos->fp, ", ");
375 dom_print = 1;
376 }
c3815874
MD		 377 if ((opt_trace_vpid_field || opt_all_fields || opt_trace_default_fields)
378 && stream_class->trace->env.vpid != -1) {
8c250d87
MD		 379 set_field_names_print(pos, ITEM_HEADER);
380 if (pos->print_names) {
381 fprintf(pos->fp, "trace:vpid = ");
382 } else if (dom_print) {
383 fprintf(pos->fp, ":");
384 }
1842a4c8 385 fprintf(pos->fp, "%d", stream_class->trace->env.vpid);
8c250d87
MD		 386 if (pos->print_names)
387 fprintf(pos->fp, ", ");
388 dom_print = 1;
389 }
306eeaa6 390 if ((opt_loglevel_field || opt_all_fields) && event_class->loglevel != -1) {
d86d62f8
MD		 391 set_field_names_print(pos, ITEM_HEADER);
392 if (pos->print_names) {
393 fprintf(pos->fp, "loglevel = ");
394 } else if (dom_print) {
395 fprintf(pos->fp, ":");
396 }
39535929
MD		 397 fprintf(pos->fp, "%s (%d)",
398 print_loglevel(event_class->loglevel),
306eeaa6 399 event_class->loglevel);
d86d62f8
MD		 400 if (pos->print_names)
401 fprintf(pos->fp, ", ");
f6714e20
MD		 402 dom_print = 1;
403 }
404 if ((opt_emf_field || opt_all_fields) && event_class->model_emf_uri) {
405 set_field_names_print(pos, ITEM_HEADER);
406 if (pos->print_names) {
407 fprintf(pos->fp, "model.emf.uri = ");
408 } else if (dom_print) {
409 fprintf(pos->fp, ":");
410 }
9b3c1d6f 411 fprintf(pos->fp, "\"%s\"",
f6714e20
MD		 412 g_quark_to_string(event_class->model_emf_uri));
413 if (pos->print_names)
414 fprintf(pos->fp, ", ");
d86d62f8
MD		 415 dom_print = 1;
416 }
f133896d 417 if ((opt_callsite_field || opt_all_fields)) {
c5ff71a3 418 struct ctf_callsite_dups *cs_dups;
f133896d
MD		 419 struct ctf_callsite *callsite;
420
c5ff71a3 421 cs_dups = ctf_trace_callsite_lookup(stream_class->trace,
f133896d 422 event_class->name);
c5ff71a3
MD		 423 if (cs_dups) {
424 int i = 0;
425
f133896d
MD		 426 set_field_names_print(pos, ITEM_HEADER);
427 if (pos->print_names) {
428 fprintf(pos->fp, "callsite = ");
429 } else if (dom_print) {
430 fprintf(pos->fp, ":");
431 }
c5ff71a3
MD		 432 fprintf(pos->fp, "[");
433 bt_list_for_each_entry(callsite, &cs_dups->head, node) {
434 if (i != 0)
435 fprintf(pos->fp, ",");
b448902b
MD		 436 if (CTF_CALLSITE_FIELD_IS_SET(callsite, ip)) {
437 fprintf(pos->fp, "%s@0x%" PRIx64 ":%s:%" PRIu64 "",
438 callsite->func, callsite->ip, callsite->file,
439 callsite->line);
440 } else {
441 fprintf(pos->fp, "%s:%s:%" PRIu64 "",
442 callsite->func, callsite->file,
443 callsite->line);
444 }
c5ff71a3
MD		 445 i++;
446 }
447 fprintf(pos->fp, "]");
f133896d
MD		 448 if (pos->print_names)
449 fprintf(pos->fp, ", ");
450 dom_print = 1;
451 }
452 }
8c250d87
MD		 453 if (dom_print && !pos->print_names)
454 fprintf(pos->fp, " ");
cba1661c 455 set_field_names_print(pos, ITEM_HEADER);
31262354
MD		 456 if (pos->print_names)
457 fprintf(pos->fp, "name = ");
8178fe48
MD		 458 fprintf(pos->fp, "%s", g_quark_to_string(event_class->name));
459 if (pos->print_names)
fd3382e8 460 pos->field_nr++;
8178fe48 461 else
fd3382e8 462 fprintf(pos->fp, ":");
31262354 463
e28d4618
MD		 464 /* print cpuid field from packet context */
465 if (stream->stream_packet_context) {
466 if (pos->field_nr++ != 0)
467 fprintf(pos->fp, ",");
cba1661c 468 set_field_names_print(pos, ITEM_SCOPE);
e28d4618
MD		 469 if (pos->print_names)
470 fprintf(pos->fp, " stream.packet.context =");
471 field_nr_saved = pos->field_nr;
472 pos->field_nr = 0;
cba1661c 473 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618
MD		 474 ret = generic_rw(ppos, &stream->stream_packet_context->p);
475 if (ret)
476 goto error;
477 pos->field_nr = field_nr_saved;
478 }
479
764af3f4 480 /* Only show the event header in verbose mode */
e28d4618 481 if (babeltrace_verbose && stream->stream_event_header) {
fd3382e8
MD		 482 if (pos->field_nr++ != 0)
483 fprintf(pos->fp, ",");
cba1661c 484 set_field_names_print(pos, ITEM_SCOPE);
31262354 485 if (pos->print_names)
fd3382e8
MD		 486 fprintf(pos->fp, " stream.event.header =");
487 field_nr_saved = pos->field_nr;
488 pos->field_nr = 0;
cba1661c 489 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 490 ret = generic_rw(ppos, &stream->stream_event_header->p);
31262354
MD		 491 if (ret)
492 goto error;
fd3382e8 493 pos->field_nr = field_nr_saved;
31262354
MD		 494 }
495
496 /* print stream-declared event context */
e28d4618 497 if (stream->stream_event_context) {
fd3382e8
MD		 498 if (pos->field_nr++ != 0)
499 fprintf(pos->fp, ",");
cba1661c 500 set_field_names_print(pos, ITEM_SCOPE);
31262354 501 if (pos->print_names)
fd3382e8
MD		 502 fprintf(pos->fp, " stream.event.context =");
503 field_nr_saved = pos->field_nr;
504 pos->field_nr = 0;
cba1661c 505 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 506 ret = generic_rw(ppos, &stream->stream_event_context->p);
31262354
MD		 507 if (ret)
508 goto error;
fd3382e8 509 pos->field_nr = field_nr_saved;
31262354
MD		 510 }
511
512 /* print event-declared event context */
e28d4618 513 if (event->event_context) {
fd3382e8
MD		 514 if (pos->field_nr++ != 0)
515 fprintf(pos->fp, ",");
cba1661c 516 set_field_names_print(pos, ITEM_SCOPE);
31262354 517 if (pos->print_names)
fd3382e8
MD		 518 fprintf(pos->fp, " event.context =");
519 field_nr_saved = pos->field_nr;
520 pos->field_nr = 0;
cba1661c 521 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 522 ret = generic_rw(ppos, &event->event_context->p);
31262354
MD		 523 if (ret)
524 goto error;
fd3382e8 525 pos->field_nr = field_nr_saved;
31262354
MD		 526 }
527
528 /* Read and print event payload */
e28d4618 529 if (event->event_fields) {
fd3382e8
MD		 530 if (pos->field_nr++ != 0)
531 fprintf(pos->fp, ",");
cba1661c 532 set_field_names_print(pos, ITEM_SCOPE);
31262354 533 if (pos->print_names)
fd3382e8
MD		 534 fprintf(pos->fp, " event.fields =");
535 field_nr_saved = pos->field_nr;
536 pos->field_nr = 0;
cba1661c 537 set_field_names_print(pos, ITEM_PAYLOAD);
e28d4618 538 ret = generic_rw(ppos, &event->event_fields->p);
31262354
MD		 539 if (ret)
540 goto error;
fd3382e8 541 pos->field_nr = field_nr_saved;
31262354 542 }
fd3382e8 543 /* newline */
31262354 544 fprintf(pos->fp, "\n");
fd3382e8 545 pos->field_nr = 0;
31262354
MD		 546
547 return 0;
548
549error:
3394d22e 550 fprintf(stderr, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n");
31262354
MD		 551 return ret;
552}
553
95febab3 554static
1b8455b7 555struct bt_trace_descriptor *ctf_text_open_trace(const char *path, int flags,
1cf393f6 556 void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
ae23d232 557 int whence), FILE *metadata_fp)
642ec66d
MD		 558{
559 struct ctf_text_stream_pos *pos;
560 FILE *fp;
561
562 pos = g_new0(struct ctf_text_stream_pos, 1);
563
03798a93
JD		 564 pos->last_real_timestamp = -1ULL;
565 pos->last_cycles_timestamp = -1ULL;
642ec66d 566 switch (flags & O_ACCMODE) {
989c73bc 567 case O_RDWR:
b61922b5 568 if (!path)
6cf7957b
MD		 569 fp = stdout;
570 else
571 fp = fopen(path, "w");
642ec66d
MD		 572 if (!fp)
573 goto error;
574 pos->fp = fp;
575 pos->parent.rw_table = write_dispatch_table;
31262354 576 pos->parent.event_cb = ctf_text_write_event;
cba1661c 577 pos->print_names = 0;
642ec66d
MD		 578 break;
579 case O_RDONLY:
580 default:
3394d22e 581 fprintf(stderr, "[error] Incorrect open flags.\n");
642ec66d
MD		 582 goto error;
583 }
584
585 return &pos->trace_descriptor;
586error:
587 g_free(pos);
588 return NULL;
589}
590
95febab3 591static
1b8455b7 592int ctf_text_close_trace(struct bt_trace_descriptor *td)
642ec66d 593{
f824ae04 594 int ret;
642ec66d
MD		 595 struct ctf_text_stream_pos *pos =
596 container_of(td, struct ctf_text_stream_pos, trace_descriptor);
9a3bb76a
MD		 597 if (pos->fp != stdout) {
598 ret = fclose(pos->fp);
599 if (ret) {
600 perror("Error on fclose");
601 return -1;
602 }
f824ae04 603 }
642ec66d 604 g_free(pos);
f824ae04 605 return 0;
642ec66d
MD		 606}
607
7237592a
MD		 608static
609int ctf_metadata_trace_pre_handler(struct bt_stream_pos *ppos,
610 struct bt_trace_descriptor *td)
611{
612 struct ctf_text_stream_pos *pos =
613 container_of(ppos, struct ctf_text_stream_pos, parent);
614 struct ctf_trace *trace;
615
616 trace = container_of(td, struct ctf_trace, parent);
617 if (!trace->metadata_string)
618 return -EINVAL;
619 if (trace->metadata_packetized) {
620 fprintf(pos->fp, "/* CTF %u.%u */\n",
621 BT_CTF_MAJOR, BT_CTF_MINOR);
622 }
623 fprintf(pos->fp, "%s", trace->metadata_string);
624 return 0;
625}
626
627static
628struct bt_trace_descriptor *ctf_metadata_open_trace(const char *path, int flags,
629 void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
630 int whence), FILE *metadata_fp)
631{
632 struct ctf_text_stream_pos *pos;
633 FILE *fp;
634
635 pos = g_new0(struct ctf_text_stream_pos, 1);
636
637 pos->last_real_timestamp = -1ULL;
638 pos->last_cycles_timestamp = -1ULL;
639 switch (flags & O_ACCMODE) {
640 case O_RDWR:
641 if (!path)
642 fp = stdout;
643 else
644 fp = fopen(path, "w");
645 if (!fp)
646 goto error;
647 pos->fp = fp;
648 pos->parent.pre_trace_cb = ctf_metadata_trace_pre_handler;
649 pos->print_names = 0;
650 break;
651 case O_RDONLY:
652 default:
653 fprintf(stderr, "[error] Incorrect open flags.\n");
654 goto error;
655 }
656
657 return &pos->trace_descriptor;
658error:
659 g_free(pos);
660 return NULL;
661}
662
663static
664int ctf_metadata_close_trace(struct bt_trace_descriptor *td)
665{
666 int ret;
667 struct ctf_text_stream_pos *pos =
668 container_of(td, struct ctf_text_stream_pos, trace_descriptor);
669 if (pos->fp != stdout) {
670 ret = fclose(pos->fp);
671 if (ret) {
672 perror("Error on fclose");
673 return -1;
674 }
675 }
676 g_free(pos);
677 return 0;
678}
679
95febab3 680static
642ec66d
MD		 681void __attribute__((constructor)) ctf_text_init(void)
682{
683 int ret;
684
685 ctf_text_format.name = g_quark_from_static_string("text");
686 ret = bt_register_format(&ctf_text_format);
687 assert(!ret);
7237592a
MD		 688 ctf_metadata_format.name = g_quark_from_static_string("ctf-metadata");
689 ret = bt_register_format(&ctf_metadata_format);
690 assert(!ret);
642ec66d
MD		 691}
692
95febab3
MD		 693static
694void __attribute__((destructor)) ctf_text_exit(void)
695{
7237592a 696 bt_unregister_format(&ctf_metadata_format);
95febab3
MD		 697 bt_unregister_format(&ctf_text_format);
698}
BabelTrace - Trace Format Babel Tower
This page took 0.059883 seconds and 4 git commands to generate.