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Namespace the struct format
[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
642ec66d
MD		 96static
97rw_dispatch write_dispatch_table[] = {
98 [ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
99 [ CTF_TYPE_FLOAT ] = ctf_text_float_write,
100 [ CTF_TYPE_ENUM ] = ctf_text_enum_write,
101 [ CTF_TYPE_STRING ] = ctf_text_string_write,
102 [ CTF_TYPE_STRUCT ] = ctf_text_struct_write,
103 [ CTF_TYPE_VARIANT ] = ctf_text_variant_write,
104 [ CTF_TYPE_ARRAY ] = ctf_text_array_write,
105 [ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write,
106};
107
108static
37b99bdb 109struct bt_format ctf_text_format = {
642ec66d
MD		 110 .open_trace = ctf_text_open_trace,
111 .close_trace = ctf_text_close_trace,
112};
113
d335f0f7
MD		 114static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN,
115 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END,
116 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED,
117 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE,
118 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE;
119
120static
121void __attribute__((constructor)) init_quarks(void)
122{
123 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN = g_quark_from_static_string("stream.packet.context.timestamp_begin");
124 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END = g_quark_from_static_string("stream.packet.context.timestamp_end");
125 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED = g_quark_from_static_string("stream.packet.context.events_discarded");
126 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE = g_quark_from_static_string("stream.packet.context.content_size");
127 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE = g_quark_from_static_string("stream.packet.context.packet_size");
128}
129
f133896d 130static
c5ff71a3 131struct ctf_callsite_dups *ctf_trace_callsite_lookup(struct ctf_trace *trace,
f133896d
MD		 132 GQuark callsite_name)
133{
134 return g_hash_table_lookup(trace->callsites,
135 (gpointer) (unsigned long) callsite_name);
136}
137
d335f0f7
MD		 138int print_field(struct definition *definition)
139{
140 /* Print all fields in verbose mode */
141 if (babeltrace_verbose)
142 return 1;
143
144 /* Filter out part of the packet context */
145 if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN)
146 return 0;
147 if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END)
148 return 0;
149 if (definition->path == Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED)
150 return 0;
151 if (definition->path == Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE)
152 return 0;
153 if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SIZE)
154 return 0;
155
156 return 1;
157}
158
cba1661c
MD		 159static
160void set_field_names_print(struct ctf_text_stream_pos *pos, enum field_item item)
161{
162 switch (item) {
163 case ITEM_SCOPE:
164 if (opt_all_field_names || opt_scope_field_names)
165 pos->print_names = 1;
166 else
167 pos->print_names = 0;
168 break;
169 case ITEM_HEADER:
170 if (opt_all_field_names || opt_header_field_names)
171 pos->print_names = 1;
172 else
173 pos->print_names = 0;
174 break;
175 case ITEM_CONTEXT:
176 if (opt_all_field_names || opt_context_field_names)
177 pos->print_names = 1;
178 else
179 pos->print_names = 0;
180 break;
181 case ITEM_PAYLOAD:
182 if (opt_all_field_names || opt_payload_field_names)
183 pos->print_names = 1;
184 else
185 pos->print_names = 0;
186
187 break;
188 default:
189 assert(0);
190 }
191}
192
39535929
MD		 193static
194const char *print_loglevel(int value)
195{
196 switch (value) {
197 case -1:
198 return "";
199 case BT_LOGLEVEL_EMERG:
200 return "TRACE_EMERG";
201 case BT_LOGLEVEL_ALERT:
202 return "TRACE_ALERT";
203 case BT_LOGLEVEL_CRIT:
204 return "TRACE_CRIT";
205 case BT_LOGLEVEL_ERR:
206 return "TRACE_ERR";
207 case BT_LOGLEVEL_WARNING:
208 return "TRACE_WARNING";
209 case BT_LOGLEVEL_NOTICE:
210 return "TRACE_NOTICE";
211 case BT_LOGLEVEL_INFO:
212 return "TRACE_INFO";
213 case BT_LOGLEVEL_DEBUG_SYSTEM:
214 return "TRACE_DEBUG_SYSTEM";
215 case BT_LOGLEVEL_DEBUG_PROGRAM:
216 return "TRACE_DEBUG_PROGRAM";
217 case BT_LOGLEVEL_DEBUG_PROCESS:
218 return "TRACE_DEBUG_PROCESS";
219 case BT_LOGLEVEL_DEBUG_MODULE:
220 return "TRACE_DEBUG_MODULE";
221 case BT_LOGLEVEL_DEBUG_UNIT:
222 return "TRACE_DEBUG_UNIT";
223 case BT_LOGLEVEL_DEBUG_FUNCTION:
224 return "TRACE_DEBUG_FUNCTION";
225 case BT_LOGLEVEL_DEBUG_LINE:
226 return "TRACE_DEBUG_LINE";
227 case BT_LOGLEVEL_DEBUG:
228 return "TRACE_DEBUG";
229 default:
230 return "<<UNKNOWN>>";
231 }
232}
233
31262354 234static
1cf393f6 235int ctf_text_write_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream)
e4195791 236
31262354
MD		 237{
238 struct ctf_text_stream_pos *pos =
239 container_of(ppos, struct ctf_text_stream_pos, parent);
f380e105 240 struct ctf_stream_declaration *stream_class = stream->stream_class;
fd3382e8 241 int field_nr_saved;
4716614a 242 struct ctf_event_declaration *event_class;
c716f83b 243 struct ctf_event_definition *event;
c87a8eb2 244 uint64_t id;
31262354 245 int ret;
8c250d87 246 int dom_print = 0;
31262354 247
c87a8eb2 248 id = stream->event_id;
31262354
MD		 249
250 if (id >= stream_class->events_by_id->len) {
3394d22e 251 fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id);
31262354
MD		 252 return -EINVAL;
253 }
e28d4618
MD		 254 event = g_ptr_array_index(stream->events_by_id, id);
255 if (!event) {
3394d22e 256 fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id);
e28d4618
MD		 257 return -EINVAL;
258 }
31262354 259 event_class = g_ptr_array_index(stream_class->events_by_id, id);
9ff2b8ad
FO		 260 if (!event_class) {
261 fprintf(stderr, "[error] Event class id %" PRIu64 " is unknown.\n", id);
31262354
MD		 262 return -EINVAL;
263 }
264
fca04958
MD		 265 /* Print events discarded */
266 if (stream->events_discarded) {
7d97fad9 267 fflush(pos->fp);
4c4ba021 268 fprintf(stderr, "[warning] Tracer discarded %" PRIu64 " events between [",
fca04958 269 stream->events_discarded);
03798a93
JD		 270 if (opt_clock_cycles) {
271 ctf_print_timestamp(stderr, stream,
272 stream->prev_cycles_timestamp);
273 fprintf(stderr, "] and [");
274 ctf_print_timestamp(stderr, stream,
275 stream->prev_cycles_timestamp_end);
276 } else {
277 ctf_print_timestamp(stderr, stream,
278 stream->prev_real_timestamp);
279 fprintf(stderr, "] and [");
280 ctf_print_timestamp(stderr, stream,
281 stream->prev_real_timestamp_end);
282 }
a0b34fbb 283 fprintf(stderr, "]. You should consider recording a new trace with larger buffers or with fewer events enabled.\n");
fca04958
MD		 284 fflush(stderr);
285 stream->events_discarded = 0;
286 }
287
5e2eb0ae 288 if (stream->has_timestamp) {
cba1661c 289 set_field_names_print(pos, ITEM_HEADER);
be60c7fb
MD		 290 if (pos->print_names)
291 fprintf(pos->fp, "timestamp = ");
292 else
293 fprintf(pos->fp, "[");
03798a93
JD		 294 if (opt_clock_cycles) {
295 ctf_print_timestamp(pos->fp, stream, stream->cycles_timestamp);
296 } else {
297 ctf_print_timestamp(pos->fp, stream, stream->real_timestamp);
298 }
be60c7fb
MD		 299 if (!pos->print_names)
300 fprintf(pos->fp, "]");
aa6bffae 301
be60c7fb
MD		 302 if (pos->print_names)
303 fprintf(pos->fp, ", ");
304 else
305 fprintf(pos->fp, " ");
306 }
359d7456 307 if ((opt_delta_field || opt_all_fields) && stream->has_timestamp) {
8d8ed9af
MD		 308 uint64_t delta, delta_sec, delta_nsec;
309
310 set_field_names_print(pos, ITEM_HEADER);
311 if (pos->print_names)
312 fprintf(pos->fp, "delta = ");
313 else
314 fprintf(pos->fp, "(");
03798a93
JD		 315 if (pos->last_real_timestamp != -1ULL) {
316 delta = stream->real_timestamp - pos->last_real_timestamp;
8d8ed9af
MD		 317 delta_sec = delta / NSEC_PER_SEC;
318 delta_nsec = delta % NSEC_PER_SEC;
319 fprintf(pos->fp, "+%" PRIu64 ".%09" PRIu64,
320 delta_sec, delta_nsec);
321 } else {
322 fprintf(pos->fp, "+?.?????????");
323 }
324 if (!pos->print_names)
325 fprintf(pos->fp, ")");
326
327 if (pos->print_names)
328 fprintf(pos->fp, ", ");
329 else
330 fprintf(pos->fp, " ");
03798a93
JD		 331 pos->last_real_timestamp = stream->real_timestamp;
332 pos->last_cycles_timestamp = stream->cycles_timestamp;
8d8ed9af
MD		 333 }
334
359d7456 335 if ((opt_trace_field || opt_all_fields) && stream_class->trace->path[0] != '\0') {
82662ad4 336 set_field_names_print(pos, ITEM_HEADER);
8c250d87 337 if (pos->print_names) {
359d7456 338 fprintf(pos->fp, "trace = ");
8c250d87 339 }
82662ad4 340 fprintf(pos->fp, "%s", stream_class->trace->path);
82662ad4
MD		 341 if (pos->print_names)
342 fprintf(pos->fp, ", ");
343 else
344 fprintf(pos->fp, " ");
345 }
c3815874
MD		 346 if ((opt_trace_hostname_field || opt_all_fields || opt_trace_default_fields)
347 && stream_class->trace->env.hostname[0] != '\0') {
32cfb8ad
MD		 348 set_field_names_print(pos, ITEM_HEADER);
349 if (pos->print_names) {
350 fprintf(pos->fp, "trace:hostname = ");
351 }
352 fprintf(pos->fp, "%s", stream_class->trace->env.hostname);
353 if (pos->print_names)
354 fprintf(pos->fp, ", ");
355 dom_print = 1;
356 }
c3815874 357 if ((opt_trace_domain_field || opt_all_fields) && stream_class->trace->env.domain[0] != '\0') {
8c250d87
MD		 358 set_field_names_print(pos, ITEM_HEADER);
359 if (pos->print_names) {
360 fprintf(pos->fp, "trace:domain = ");
361 }
1842a4c8 362 fprintf(pos->fp, "%s", stream_class->trace->env.domain);
8c250d87
MD		 363 if (pos->print_names)
364 fprintf(pos->fp, ", ");
365 dom_print = 1;
366 }
c3815874
MD		 367 if ((opt_trace_procname_field || opt_all_fields || opt_trace_default_fields)
368 && stream_class->trace->env.procname[0] != '\0') {
8c250d87
MD		 369 set_field_names_print(pos, ITEM_HEADER);
370 if (pos->print_names) {
371 fprintf(pos->fp, "trace:procname = ");
372 } else if (dom_print) {
373 fprintf(pos->fp, ":");
374 }
1842a4c8 375 fprintf(pos->fp, "%s", stream_class->trace->env.procname);
8c250d87
MD		 376 if (pos->print_names)
377 fprintf(pos->fp, ", ");
378 dom_print = 1;
379 }
c3815874
MD		 380 if ((opt_trace_vpid_field || opt_all_fields || opt_trace_default_fields)
381 && stream_class->trace->env.vpid != -1) {
8c250d87
MD		 382 set_field_names_print(pos, ITEM_HEADER);
383 if (pos->print_names) {
384 fprintf(pos->fp, "trace:vpid = ");
385 } else if (dom_print) {
386 fprintf(pos->fp, ":");
387 }
1842a4c8 388 fprintf(pos->fp, "%d", stream_class->trace->env.vpid);
8c250d87
MD		 389 if (pos->print_names)
390 fprintf(pos->fp, ", ");
391 dom_print = 1;
392 }
306eeaa6 393 if ((opt_loglevel_field || opt_all_fields) && event_class->loglevel != -1) {
d86d62f8
MD		 394 set_field_names_print(pos, ITEM_HEADER);
395 if (pos->print_names) {
396 fprintf(pos->fp, "loglevel = ");
397 } else if (dom_print) {
398 fprintf(pos->fp, ":");
399 }
39535929
MD		 400 fprintf(pos->fp, "%s (%d)",
401 print_loglevel(event_class->loglevel),
306eeaa6 402 event_class->loglevel);
d86d62f8
MD		 403 if (pos->print_names)
404 fprintf(pos->fp, ", ");
f6714e20
MD		 405 dom_print = 1;
406 }
407 if ((opt_emf_field || opt_all_fields) && event_class->model_emf_uri) {
408 set_field_names_print(pos, ITEM_HEADER);
409 if (pos->print_names) {
410 fprintf(pos->fp, "model.emf.uri = ");
411 } else if (dom_print) {
412 fprintf(pos->fp, ":");
413 }
9b3c1d6f 414 fprintf(pos->fp, "\"%s\"",
f6714e20
MD		 415 g_quark_to_string(event_class->model_emf_uri));
416 if (pos->print_names)
417 fprintf(pos->fp, ", ");
d86d62f8
MD		 418 dom_print = 1;
419 }
f133896d 420 if ((opt_callsite_field || opt_all_fields)) {
c5ff71a3 421 struct ctf_callsite_dups *cs_dups;
f133896d
MD		 422 struct ctf_callsite *callsite;
423
c5ff71a3 424 cs_dups = ctf_trace_callsite_lookup(stream_class->trace,
f133896d 425 event_class->name);
c5ff71a3
MD		 426 if (cs_dups) {
427 int i = 0;
428
f133896d
MD		 429 set_field_names_print(pos, ITEM_HEADER);
430 if (pos->print_names) {
431 fprintf(pos->fp, "callsite = ");
432 } else if (dom_print) {
433 fprintf(pos->fp, ":");
434 }
c5ff71a3
MD		 435 fprintf(pos->fp, "[");
436 bt_list_for_each_entry(callsite, &cs_dups->head, node) {
437 if (i != 0)
438 fprintf(pos->fp, ",");
b448902b
MD		 439 if (CTF_CALLSITE_FIELD_IS_SET(callsite, ip)) {
440 fprintf(pos->fp, "%s@0x%" PRIx64 ":%s:%" PRIu64 "",
441 callsite->func, callsite->ip, callsite->file,
442 callsite->line);
443 } else {
444 fprintf(pos->fp, "%s:%s:%" PRIu64 "",
445 callsite->func, callsite->file,
446 callsite->line);
447 }
c5ff71a3
MD		 448 i++;
449 }
450 fprintf(pos->fp, "]");
f133896d
MD		 451 if (pos->print_names)
452 fprintf(pos->fp, ", ");
453 dom_print = 1;
454 }
455 }
8c250d87
MD		 456 if (dom_print && !pos->print_names)
457 fprintf(pos->fp, " ");
cba1661c 458 set_field_names_print(pos, ITEM_HEADER);
31262354
MD		 459 if (pos->print_names)
460 fprintf(pos->fp, "name = ");
8178fe48
MD		 461 fprintf(pos->fp, "%s", g_quark_to_string(event_class->name));
462 if (pos->print_names)
fd3382e8 463 pos->field_nr++;
8178fe48 464 else
fd3382e8 465 fprintf(pos->fp, ":");
31262354 466
e28d4618
MD		 467 /* print cpuid field from packet context */
468 if (stream->stream_packet_context) {
469 if (pos->field_nr++ != 0)
470 fprintf(pos->fp, ",");
cba1661c 471 set_field_names_print(pos, ITEM_SCOPE);
e28d4618
MD		 472 if (pos->print_names)
473 fprintf(pos->fp, " stream.packet.context =");
474 field_nr_saved = pos->field_nr;
475 pos->field_nr = 0;
cba1661c 476 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618
MD		 477 ret = generic_rw(ppos, &stream->stream_packet_context->p);
478 if (ret)
479 goto error;
480 pos->field_nr = field_nr_saved;
481 }
482
764af3f4 483 /* Only show the event header in verbose mode */
e28d4618 484 if (babeltrace_verbose && stream->stream_event_header) {
fd3382e8
MD		 485 if (pos->field_nr++ != 0)
486 fprintf(pos->fp, ",");
cba1661c 487 set_field_names_print(pos, ITEM_SCOPE);
31262354 488 if (pos->print_names)
fd3382e8
MD		 489 fprintf(pos->fp, " stream.event.header =");
490 field_nr_saved = pos->field_nr;
491 pos->field_nr = 0;
cba1661c 492 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 493 ret = generic_rw(ppos, &stream->stream_event_header->p);
31262354
MD		 494 if (ret)
495 goto error;
fd3382e8 496 pos->field_nr = field_nr_saved;
31262354
MD		 497 }
498
499 /* print stream-declared event context */
e28d4618 500 if (stream->stream_event_context) {
fd3382e8
MD		 501 if (pos->field_nr++ != 0)
502 fprintf(pos->fp, ",");
cba1661c 503 set_field_names_print(pos, ITEM_SCOPE);
31262354 504 if (pos->print_names)
fd3382e8
MD		 505 fprintf(pos->fp, " stream.event.context =");
506 field_nr_saved = pos->field_nr;
507 pos->field_nr = 0;
cba1661c 508 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 509 ret = generic_rw(ppos, &stream->stream_event_context->p);
31262354
MD		 510 if (ret)
511 goto error;
fd3382e8 512 pos->field_nr = field_nr_saved;
31262354
MD		 513 }
514
515 /* print event-declared event context */
e28d4618 516 if (event->event_context) {
fd3382e8
MD		 517 if (pos->field_nr++ != 0)
518 fprintf(pos->fp, ",");
cba1661c 519 set_field_names_print(pos, ITEM_SCOPE);
31262354 520 if (pos->print_names)
fd3382e8
MD		 521 fprintf(pos->fp, " event.context =");
522 field_nr_saved = pos->field_nr;
523 pos->field_nr = 0;
cba1661c 524 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 525 ret = generic_rw(ppos, &event->event_context->p);
31262354
MD		 526 if (ret)
527 goto error;
fd3382e8 528 pos->field_nr = field_nr_saved;
31262354
MD		 529 }
530
531 /* Read and print event payload */
e28d4618 532 if (event->event_fields) {
fd3382e8
MD		 533 if (pos->field_nr++ != 0)
534 fprintf(pos->fp, ",");
cba1661c 535 set_field_names_print(pos, ITEM_SCOPE);
31262354 536 if (pos->print_names)
fd3382e8
MD		 537 fprintf(pos->fp, " event.fields =");
538 field_nr_saved = pos->field_nr;
539 pos->field_nr = 0;
cba1661c 540 set_field_names_print(pos, ITEM_PAYLOAD);
e28d4618 541 ret = generic_rw(ppos, &event->event_fields->p);
31262354
MD		 542 if (ret)
543 goto error;
fd3382e8 544 pos->field_nr = field_nr_saved;
31262354 545 }
fd3382e8 546 /* newline */
31262354 547 fprintf(pos->fp, "\n");
fd3382e8 548 pos->field_nr = 0;
31262354
MD		 549
550 return 0;
551
552error:
3394d22e 553 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		 554 return ret;
555}
556
95febab3 557static
1b8455b7 558struct bt_trace_descriptor *ctf_text_open_trace(const char *path, int flags,
1cf393f6 559 void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
ae23d232 560 int whence), FILE *metadata_fp)
642ec66d
MD		 561{
562 struct ctf_text_stream_pos *pos;
563 FILE *fp;
564
565 pos = g_new0(struct ctf_text_stream_pos, 1);
566
03798a93
JD		 567 pos->last_real_timestamp = -1ULL;
568 pos->last_cycles_timestamp = -1ULL;
642ec66d 569 switch (flags & O_ACCMODE) {
989c73bc 570 case O_RDWR:
b61922b5 571 if (!path)
6cf7957b
MD		 572 fp = stdout;
573 else
574 fp = fopen(path, "w");
642ec66d
MD		 575 if (!fp)
576 goto error;
577 pos->fp = fp;
578 pos->parent.rw_table = write_dispatch_table;
31262354 579 pos->parent.event_cb = ctf_text_write_event;
cba1661c 580 pos->print_names = 0;
642ec66d
MD		 581 break;
582 case O_RDONLY:
583 default:
3394d22e 584 fprintf(stderr, "[error] Incorrect open flags.\n");
642ec66d
MD		 585 goto error;
586 }
587
588 return &pos->trace_descriptor;
589error:
590 g_free(pos);
591 return NULL;
592}
593
95febab3 594static
1b8455b7 595int ctf_text_close_trace(struct bt_trace_descriptor *td)
642ec66d 596{
f824ae04 597 int ret;
642ec66d
MD		 598 struct ctf_text_stream_pos *pos =
599 container_of(td, struct ctf_text_stream_pos, trace_descriptor);
f824ae04
MD		 600 ret = fclose(pos->fp);
601 if (ret) {
602 perror("Error on fclose");
603 return -1;
604 }
642ec66d 605 g_free(pos);
f824ae04 606 return 0;
642ec66d
MD		 607}
608
95febab3 609static
642ec66d
MD		 610void __attribute__((constructor)) ctf_text_init(void)
611{
612 int ret;
613
614 ctf_text_format.name = g_quark_from_static_string("text");
615 ret = bt_register_format(&ctf_text_format);
616 assert(!ret);
617}
618
95febab3
MD		 619static
620void __attribute__((destructor)) ctf_text_exit(void)
621{
622 bt_unregister_format(&ctf_text_format);
623}
BabelTrace - Trace Format Babel Tower
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