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Add empty plug-in hooks to prevent their elimination by the linker
[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>
2748fb3b 34#include <babeltrace/trace-debug-info.h>
642ec66d 35#include <inttypes.h>
642ec66d
MD		 36#include <sys/mman.h>
37#include <errno.h>
38#include <sys/types.h>
39#include <sys/stat.h>
40#include <fcntl.h>
41#include <dirent.h>
42#include <glib.h>
43#include <unistd.h>
44#include <stdlib.h>
45
61cf588b 46#define NSEC_PER_SEC 1000000000LL
bfe74b8c 47
cba1661c
MD		 48int opt_all_field_names,
49 opt_scope_field_names,
50 opt_header_field_names,
51 opt_context_field_names,
82662ad4 52 opt_payload_field_names,
359d7456
MD		 53 opt_all_fields,
54 opt_trace_field,
55 opt_trace_domain_field,
56 opt_trace_procname_field,
57 opt_trace_vpid_field,
32cfb8ad 58 opt_trace_hostname_field,
c3815874 59 opt_trace_default_fields = 1,
359d7456 60 opt_loglevel_field,
f6714e20 61 opt_emf_field,
f133896d 62 opt_callsite_field,
ff9ce920
JG		 63 opt_delta_field = 1,
64 opt_debug_info_full_path;
cba1661c
MD		 65
66enum field_item {
67 ITEM_SCOPE,
68 ITEM_HEADER,
69 ITEM_CONTEXT,
70 ITEM_PAYLOAD,
71};
b88d6e85 72
39535929
MD		 73enum bt_loglevel {
74 BT_LOGLEVEL_EMERG = 0,
75 BT_LOGLEVEL_ALERT = 1,
76 BT_LOGLEVEL_CRIT = 2,
77 BT_LOGLEVEL_ERR = 3,
78 BT_LOGLEVEL_WARNING = 4,
79 BT_LOGLEVEL_NOTICE = 5,
80 BT_LOGLEVEL_INFO = 6,
81 BT_LOGLEVEL_DEBUG_SYSTEM = 7,
82 BT_LOGLEVEL_DEBUG_PROGRAM = 8,
83 BT_LOGLEVEL_DEBUG_PROCESS = 9,
84 BT_LOGLEVEL_DEBUG_MODULE = 10,
85 BT_LOGLEVEL_DEBUG_UNIT = 11,
86 BT_LOGLEVEL_DEBUG_FUNCTION = 12,
87 BT_LOGLEVEL_DEBUG_LINE = 13,
88 BT_LOGLEVEL_DEBUG = 14,
89};
90
95febab3 91static
1b8455b7 92struct bt_trace_descriptor *ctf_text_open_trace(const char *path, int flags,
1cf393f6 93 void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
ae23d232 94 int whence), FILE *metadata_fp);
95febab3 95static
1b8455b7 96int ctf_text_close_trace(struct bt_trace_descriptor *descriptor);
642ec66d 97
642ec66d
MD		 98static
99rw_dispatch write_dispatch_table[] = {
100 [ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
101 [ CTF_TYPE_FLOAT ] = ctf_text_float_write,
102 [ CTF_TYPE_ENUM ] = ctf_text_enum_write,
103 [ CTF_TYPE_STRING ] = ctf_text_string_write,
104 [ CTF_TYPE_STRUCT ] = ctf_text_struct_write,
105 [ CTF_TYPE_VARIANT ] = ctf_text_variant_write,
106 [ CTF_TYPE_ARRAY ] = ctf_text_array_write,
107 [ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write,
108};
109
110static
37b99bdb 111struct bt_format ctf_text_format = {
642ec66d
MD		 112 .open_trace = ctf_text_open_trace,
113 .close_trace = ctf_text_close_trace,
114};
115
d335f0f7
MD		 116static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN,
117 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END,
118 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED,
119 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE,
03d0d7ec
JD		 120 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE,
121 Q_STREAM_PACKET_CONTEXT_PACKET_SEQ_NUM;
d335f0f7
MD		 122
123static
124void __attribute__((constructor)) init_quarks(void)
125{
2ea5cc8b
NL		 126 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN = g_quark_from_string("stream.packet.context.timestamp_begin");
127 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END = g_quark_from_string("stream.packet.context.timestamp_end");
128 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED = g_quark_from_string("stream.packet.context.events_discarded");
129 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE = g_quark_from_string("stream.packet.context.content_size");
130 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE = g_quark_from_string("stream.packet.context.packet_size");
131 Q_STREAM_PACKET_CONTEXT_PACKET_SEQ_NUM = g_quark_from_string("stream.packet.context.packet_seq_num");
d335f0f7
MD		 132}
133
f133896d 134static
c5ff71a3 135struct ctf_callsite_dups *ctf_trace_callsite_lookup(struct ctf_trace *trace,
f133896d
MD		 136 GQuark callsite_name)
137{
138 return g_hash_table_lookup(trace->callsites,
139 (gpointer) (unsigned long) callsite_name);
140}
141
7e3e3582
JG		 142void bt_ctf_text_hook(void)
143{
144 /*
145 * Dummy function to prevent the linker from discarding this format as
146 * "unused" in static builds.
147 */
148}
149
0d69b916 150int print_field(struct bt_definition *definition)
d335f0f7
MD		 151{
152 /* Print all fields in verbose mode */
153 if (babeltrace_verbose)
154 return 1;
155
156 /* Filter out part of the packet context */
157 if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN)
158 return 0;
159 if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END)
160 return 0;
161 if (definition->path == Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED)
162 return 0;
163 if (definition->path == Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE)
164 return 0;
165 if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SIZE)
166 return 0;
03d0d7ec
JD		 167 if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SEQ_NUM)
168 return 0;
d335f0f7
MD		 169
170 return 1;
171}
172
cba1661c
MD		 173static
174void set_field_names_print(struct ctf_text_stream_pos *pos, enum field_item item)
175{
176 switch (item) {
177 case ITEM_SCOPE:
178 if (opt_all_field_names || opt_scope_field_names)
179 pos->print_names = 1;
180 else
181 pos->print_names = 0;
182 break;
183 case ITEM_HEADER:
184 if (opt_all_field_names || opt_header_field_names)
185 pos->print_names = 1;
186 else
187 pos->print_names = 0;
188 break;
189 case ITEM_CONTEXT:
190 if (opt_all_field_names || opt_context_field_names)
191 pos->print_names = 1;
192 else
193 pos->print_names = 0;
194 break;
195 case ITEM_PAYLOAD:
196 if (opt_all_field_names || opt_payload_field_names)
197 pos->print_names = 1;
198 else
199 pos->print_names = 0;
200
201 break;
202 default:
203 assert(0);
204 }
205}
206
39535929
MD		 207static
208const char *print_loglevel(int value)
209{
210 switch (value) {
211 case -1:
212 return "";
213 case BT_LOGLEVEL_EMERG:
214 return "TRACE_EMERG";
215 case BT_LOGLEVEL_ALERT:
216 return "TRACE_ALERT";
217 case BT_LOGLEVEL_CRIT:
218 return "TRACE_CRIT";
219 case BT_LOGLEVEL_ERR:
220 return "TRACE_ERR";
221 case BT_LOGLEVEL_WARNING:
222 return "TRACE_WARNING";
223 case BT_LOGLEVEL_NOTICE:
224 return "TRACE_NOTICE";
225 case BT_LOGLEVEL_INFO:
226 return "TRACE_INFO";
227 case BT_LOGLEVEL_DEBUG_SYSTEM:
228 return "TRACE_DEBUG_SYSTEM";
229 case BT_LOGLEVEL_DEBUG_PROGRAM:
230 return "TRACE_DEBUG_PROGRAM";
231 case BT_LOGLEVEL_DEBUG_PROCESS:
232 return "TRACE_DEBUG_PROCESS";
233 case BT_LOGLEVEL_DEBUG_MODULE:
234 return "TRACE_DEBUG_MODULE";
235 case BT_LOGLEVEL_DEBUG_UNIT:
236 return "TRACE_DEBUG_UNIT";
237 case BT_LOGLEVEL_DEBUG_FUNCTION:
238 return "TRACE_DEBUG_FUNCTION";
239 case BT_LOGLEVEL_DEBUG_LINE:
240 return "TRACE_DEBUG_LINE";
241 case BT_LOGLEVEL_DEBUG:
242 return "TRACE_DEBUG";
243 default:
244 return "<<UNKNOWN>>";
245 }
246}
247
31262354 248static
1cf393f6 249int ctf_text_write_event(struct bt_stream_pos *ppos, struct ctf_stream_definition *stream)
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
c40a57e5
AB		 278 handle_debug_info_event(stream_class, event);
279
5e2eb0ae 280 if (stream->has_timestamp) {
cba1661c 281 set_field_names_print(pos, ITEM_HEADER);
be60c7fb
MD		 282 if (pos->print_names)
283 fprintf(pos->fp, "timestamp = ");
284 else
285 fprintf(pos->fp, "[");
03798a93
JD		 286 if (opt_clock_cycles) {
287 ctf_print_timestamp(pos->fp, stream, stream->cycles_timestamp);
288 } else {
289 ctf_print_timestamp(pos->fp, stream, stream->real_timestamp);
290 }
be60c7fb
MD		 291 if (!pos->print_names)
292 fprintf(pos->fp, "]");
aa6bffae 293
be60c7fb
MD		 294 if (pos->print_names)
295 fprintf(pos->fp, ", ");
296 else
297 fprintf(pos->fp, " ");
298 }
e4497aa0 299 if (opt_delta_field && stream->has_timestamp) {
8d8ed9af
MD		 300 uint64_t delta, delta_sec, delta_nsec;
301
302 set_field_names_print(pos, ITEM_HEADER);
303 if (pos->print_names)
304 fprintf(pos->fp, "delta = ");
305 else
306 fprintf(pos->fp, "(");
03798a93
JD		 307 if (pos->last_real_timestamp != -1ULL) {
308 delta = stream->real_timestamp - pos->last_real_timestamp;
8d8ed9af
MD		 309 delta_sec = delta / NSEC_PER_SEC;
310 delta_nsec = delta % NSEC_PER_SEC;
311 fprintf(pos->fp, "+%" PRIu64 ".%09" PRIu64,
312 delta_sec, delta_nsec);
313 } else {
314 fprintf(pos->fp, "+?.?????????");
315 }
316 if (!pos->print_names)
317 fprintf(pos->fp, ")");
318
319 if (pos->print_names)
320 fprintf(pos->fp, ", ");
321 else
322 fprintf(pos->fp, " ");
03798a93
JD		 323 pos->last_real_timestamp = stream->real_timestamp;
324 pos->last_cycles_timestamp = stream->cycles_timestamp;
8d8ed9af
MD		 325 }
326
caf929fa 327 if ((opt_trace_field || opt_all_fields) && stream_class->trace->parent.path[0] != '\0') {
82662ad4 328 set_field_names_print(pos, ITEM_HEADER);
8c250d87 329 if (pos->print_names) {
359d7456 330 fprintf(pos->fp, "trace = ");
8c250d87 331 }
caf929fa 332 fprintf(pos->fp, "%s", stream_class->trace->parent.path);
82662ad4
MD		 333 if (pos->print_names)
334 fprintf(pos->fp, ", ");
335 else
336 fprintf(pos->fp, " ");
337 }
c3815874
MD		 338 if ((opt_trace_hostname_field || opt_all_fields || opt_trace_default_fields)
339 && stream_class->trace->env.hostname[0] != '\0') {
32cfb8ad
MD		 340 set_field_names_print(pos, ITEM_HEADER);
341 if (pos->print_names) {
342 fprintf(pos->fp, "trace:hostname = ");
343 }
344 fprintf(pos->fp, "%s", stream_class->trace->env.hostname);
345 if (pos->print_names)
346 fprintf(pos->fp, ", ");
347 dom_print = 1;
348 }
c3815874 349 if ((opt_trace_domain_field || opt_all_fields) && stream_class->trace->env.domain[0] != '\0') {
8c250d87
MD		 350 set_field_names_print(pos, ITEM_HEADER);
351 if (pos->print_names) {
352 fprintf(pos->fp, "trace:domain = ");
353 }
1842a4c8 354 fprintf(pos->fp, "%s", stream_class->trace->env.domain);
8c250d87
MD		 355 if (pos->print_names)
356 fprintf(pos->fp, ", ");
357 dom_print = 1;
358 }
c3815874
MD		 359 if ((opt_trace_procname_field || opt_all_fields || opt_trace_default_fields)
360 && stream_class->trace->env.procname[0] != '\0') {
8c250d87
MD		 361 set_field_names_print(pos, ITEM_HEADER);
362 if (pos->print_names) {
363 fprintf(pos->fp, "trace:procname = ");
364 } else if (dom_print) {
365 fprintf(pos->fp, ":");
366 }
1842a4c8 367 fprintf(pos->fp, "%s", stream_class->trace->env.procname);
8c250d87
MD		 368 if (pos->print_names)
369 fprintf(pos->fp, ", ");
370 dom_print = 1;
371 }
c3815874
MD		 372 if ((opt_trace_vpid_field || opt_all_fields || opt_trace_default_fields)
373 && stream_class->trace->env.vpid != -1) {
8c250d87
MD		 374 set_field_names_print(pos, ITEM_HEADER);
375 if (pos->print_names) {
376 fprintf(pos->fp, "trace:vpid = ");
377 } else if (dom_print) {
378 fprintf(pos->fp, ":");
379 }
1842a4c8 380 fprintf(pos->fp, "%d", stream_class->trace->env.vpid);
8c250d87
MD		 381 if (pos->print_names)
382 fprintf(pos->fp, ", ");
383 dom_print = 1;
384 }
306eeaa6 385 if ((opt_loglevel_field || opt_all_fields) && event_class->loglevel != -1) {
d86d62f8
MD		 386 set_field_names_print(pos, ITEM_HEADER);
387 if (pos->print_names) {
388 fprintf(pos->fp, "loglevel = ");
389 } else if (dom_print) {
390 fprintf(pos->fp, ":");
391 }
39535929
MD		 392 fprintf(pos->fp, "%s (%d)",
393 print_loglevel(event_class->loglevel),
306eeaa6 394 event_class->loglevel);
d86d62f8
MD		 395 if (pos->print_names)
396 fprintf(pos->fp, ", ");
f6714e20
MD		 397 dom_print = 1;
398 }
399 if ((opt_emf_field || opt_all_fields) && event_class->model_emf_uri) {
400 set_field_names_print(pos, ITEM_HEADER);
401 if (pos->print_names) {
402 fprintf(pos->fp, "model.emf.uri = ");
403 } else if (dom_print) {
404 fprintf(pos->fp, ":");
405 }
9b3c1d6f 406 fprintf(pos->fp, "\"%s\"",
f6714e20
MD		 407 g_quark_to_string(event_class->model_emf_uri));
408 if (pos->print_names)
409 fprintf(pos->fp, ", ");
d86d62f8
MD		 410 dom_print = 1;
411 }
f133896d 412 if ((opt_callsite_field || opt_all_fields)) {
c5ff71a3 413 struct ctf_callsite_dups *cs_dups;
f133896d
MD		 414 struct ctf_callsite *callsite;
415
c5ff71a3 416 cs_dups = ctf_trace_callsite_lookup(stream_class->trace,
f133896d 417 event_class->name);
c5ff71a3
MD		 418 if (cs_dups) {
419 int i = 0;
420
f133896d
MD		 421 set_field_names_print(pos, ITEM_HEADER);
422 if (pos->print_names) {
423 fprintf(pos->fp, "callsite = ");
424 } else if (dom_print) {
425 fprintf(pos->fp, ":");
426 }
c5ff71a3
MD		 427 fprintf(pos->fp, "[");
428 bt_list_for_each_entry(callsite, &cs_dups->head, node) {
429 if (i != 0)
430 fprintf(pos->fp, ",");
b448902b
MD		 431 if (CTF_CALLSITE_FIELD_IS_SET(callsite, ip)) {
432 fprintf(pos->fp, "%s@0x%" PRIx64 ":%s:%" PRIu64 "",
433 callsite->func, callsite->ip, callsite->file,
434 callsite->line);
435 } else {
436 fprintf(pos->fp, "%s:%s:%" PRIu64 "",
437 callsite->func, callsite->file,
438 callsite->line);
439 }
c5ff71a3
MD		 440 i++;
441 }
442 fprintf(pos->fp, "]");
f133896d
MD		 443 if (pos->print_names)
444 fprintf(pos->fp, ", ");
445 dom_print = 1;
446 }
447 }
8c250d87
MD		 448 if (dom_print && !pos->print_names)
449 fprintf(pos->fp, " ");
cba1661c 450 set_field_names_print(pos, ITEM_HEADER);
31262354
MD		 451 if (pos->print_names)
452 fprintf(pos->fp, "name = ");
8178fe48
MD		 453 fprintf(pos->fp, "%s", g_quark_to_string(event_class->name));
454 if (pos->print_names)
fd3382e8 455 pos->field_nr++;
8178fe48 456 else
fd3382e8 457 fprintf(pos->fp, ":");
31262354 458
e28d4618
MD		 459 /* print cpuid field from packet context */
460 if (stream->stream_packet_context) {
461 if (pos->field_nr++ != 0)
462 fprintf(pos->fp, ",");
cba1661c 463 set_field_names_print(pos, ITEM_SCOPE);
e28d4618
MD		 464 if (pos->print_names)
465 fprintf(pos->fp, " stream.packet.context =");
466 field_nr_saved = pos->field_nr;
467 pos->field_nr = 0;
cba1661c 468 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618
MD		 469 ret = generic_rw(ppos, &stream->stream_packet_context->p);
470 if (ret)
471 goto error;
472 pos->field_nr = field_nr_saved;
473 }
474
764af3f4 475 /* Only show the event header in verbose mode */
e28d4618 476 if (babeltrace_verbose && stream->stream_event_header) {
fd3382e8
MD		 477 if (pos->field_nr++ != 0)
478 fprintf(pos->fp, ",");
cba1661c 479 set_field_names_print(pos, ITEM_SCOPE);
31262354 480 if (pos->print_names)
fd3382e8
MD		 481 fprintf(pos->fp, " stream.event.header =");
482 field_nr_saved = pos->field_nr;
483 pos->field_nr = 0;
cba1661c 484 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 485 ret = generic_rw(ppos, &stream->stream_event_header->p);
31262354
MD		 486 if (ret)
487 goto error;
fd3382e8 488 pos->field_nr = field_nr_saved;
31262354
MD		 489 }
490
491 /* print stream-declared event context */
e28d4618 492 if (stream->stream_event_context) {
fd3382e8
MD		 493 if (pos->field_nr++ != 0)
494 fprintf(pos->fp, ",");
cba1661c 495 set_field_names_print(pos, ITEM_SCOPE);
31262354 496 if (pos->print_names)
fd3382e8
MD		 497 fprintf(pos->fp, " stream.event.context =");
498 field_nr_saved = pos->field_nr;
499 pos->field_nr = 0;
cba1661c 500 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 501 ret = generic_rw(ppos, &stream->stream_event_context->p);
31262354
MD		 502 if (ret)
503 goto error;
fd3382e8 504 pos->field_nr = field_nr_saved;
31262354
MD		 505 }
506
507 /* print event-declared event context */
e28d4618 508 if (event->event_context) {
fd3382e8
MD		 509 if (pos->field_nr++ != 0)
510 fprintf(pos->fp, ",");
cba1661c 511 set_field_names_print(pos, ITEM_SCOPE);
31262354 512 if (pos->print_names)
fd3382e8
MD		 513 fprintf(pos->fp, " event.context =");
514 field_nr_saved = pos->field_nr;
515 pos->field_nr = 0;
cba1661c 516 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 517 ret = generic_rw(ppos, &event->event_context->p);
31262354
MD		 518 if (ret)
519 goto error;
fd3382e8 520 pos->field_nr = field_nr_saved;
31262354
MD		 521 }
522
523 /* Read and print event payload */
e28d4618 524 if (event->event_fields) {
fd3382e8
MD		 525 if (pos->field_nr++ != 0)
526 fprintf(pos->fp, ",");
cba1661c 527 set_field_names_print(pos, ITEM_SCOPE);
31262354 528 if (pos->print_names)
fd3382e8
MD		 529 fprintf(pos->fp, " event.fields =");
530 field_nr_saved = pos->field_nr;
531 pos->field_nr = 0;
cba1661c 532 set_field_names_print(pos, ITEM_PAYLOAD);
e28d4618 533 ret = generic_rw(ppos, &event->event_fields->p);
31262354
MD		 534 if (ret)
535 goto error;
fd3382e8 536 pos->field_nr = field_nr_saved;
31262354 537 }
fd3382e8 538 /* newline */
31262354 539 fprintf(pos->fp, "\n");
fd3382e8 540 pos->field_nr = 0;
31262354
MD		 541
542 return 0;
543
544error:
3394d22e 545 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		 546 return ret;
547}
548
95febab3 549static
1b8455b7 550struct bt_trace_descriptor *ctf_text_open_trace(const char *path, int flags,
1cf393f6 551 void (*packet_seek)(struct bt_stream_pos *pos, size_t index,
ae23d232 552 int whence), FILE *metadata_fp)
642ec66d
MD		 553{
554 struct ctf_text_stream_pos *pos;
555 FILE *fp;
556
557 pos = g_new0(struct ctf_text_stream_pos, 1);
40af9f9f
JG		 558 if (!pos) {
559 goto error;
560 }
561 init_trace_descriptor(&pos->trace_descriptor);
642ec66d 562
03798a93
JD		 563 pos->last_real_timestamp = -1ULL;
564 pos->last_cycles_timestamp = -1ULL;
642ec66d 565 switch (flags & O_ACCMODE) {
989c73bc 566 case O_RDWR:
b61922b5 567 if (!path)
6cf7957b
MD		 568 fp = stdout;
569 else
570 fp = fopen(path, "w");
642ec66d
MD		 571 if (!fp)
572 goto error;
573 pos->fp = fp;
574 pos->parent.rw_table = write_dispatch_table;
31262354 575 pos->parent.event_cb = ctf_text_write_event;
ca334c72 576 pos->parent.trace = &pos->trace_descriptor;
cba1661c 577 pos->print_names = 0;
2654fe9b 578 babeltrace_ctf_console_output++;
642ec66d
MD		 579 break;
580 case O_RDONLY:
581 default:
3394d22e 582 fprintf(stderr, "[error] Incorrect open flags.\n");
642ec66d
MD		 583 goto error;
584 }
585
586 return &pos->trace_descriptor;
587error:
588 g_free(pos);
589 return NULL;
590}
591
95febab3 592static
1b8455b7 593int ctf_text_close_trace(struct bt_trace_descriptor *td)
642ec66d 594{
f824ae04 595 int ret;
642ec66d
MD		 596 struct ctf_text_stream_pos *pos =
597 container_of(td, struct ctf_text_stream_pos, trace_descriptor);
2654fe9b
MD		 598
599 babeltrace_ctf_console_output--;
9a3bb76a
MD		 600 if (pos->fp != stdout) {
601 ret = fclose(pos->fp);
602 if (ret) {
603 perror("Error on fclose");
604 return -1;
605 }
f824ae04 606 }
642ec66d 607 g_free(pos);
f824ae04 608 return 0;
642ec66d
MD		 609}
610
95febab3 611static
642ec66d
MD		 612void __attribute__((constructor)) ctf_text_init(void)
613{
614 int ret;
615
2ea5cc8b 616 ctf_text_format.name = g_quark_from_string("text");
642ec66d
MD		 617 ret = bt_register_format(&ctf_text_format);
618 assert(!ret);
619}
620
95febab3
MD		 621static
622void __attribute__((destructor)) ctf_text_exit(void)
623{
624 bt_unregister_format(&ctf_text_format);
625}
BabelTrace - Trace Format Babel Tower
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