Add callsite support
[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.
19 */
20
21#include <babeltrace/format.h>
22#include <babeltrace/ctf-text/types.h>
31262354 23#include <babeltrace/ctf/metadata.h>
70bd0a12 24#include <babeltrace/babeltrace-internal.h>
e4195791 25#include <babeltrace/ctf/events-internal.h>
642ec66d 26#include <inttypes.h>
642ec66d
MD
27#include <sys/mman.h>
28#include <errno.h>
29#include <sys/types.h>
30#include <sys/stat.h>
31#include <fcntl.h>
32#include <dirent.h>
33#include <glib.h>
34#include <unistd.h>
35#include <stdlib.h>
36
bfe74b8c
MD
37#define NSEC_PER_SEC 1000000000ULL
38
cba1661c
MD
39int opt_all_field_names,
40 opt_scope_field_names,
41 opt_header_field_names,
42 opt_context_field_names,
82662ad4 43 opt_payload_field_names,
359d7456
MD
44 opt_all_fields,
45 opt_trace_field,
46 opt_trace_domain_field,
47 opt_trace_procname_field,
48 opt_trace_vpid_field,
32cfb8ad 49 opt_trace_hostname_field,
c3815874 50 opt_trace_default_fields = 1,
359d7456 51 opt_loglevel_field,
f6714e20 52 opt_emf_field,
f133896d 53 opt_callsite_field,
7d97fad9 54 opt_delta_field = 1;
cba1661c
MD
55
56enum field_item {
57 ITEM_SCOPE,
58 ITEM_HEADER,
59 ITEM_CONTEXT,
60 ITEM_PAYLOAD,
61};
b88d6e85 62
39535929
MD
63enum bt_loglevel {
64 BT_LOGLEVEL_EMERG = 0,
65 BT_LOGLEVEL_ALERT = 1,
66 BT_LOGLEVEL_CRIT = 2,
67 BT_LOGLEVEL_ERR = 3,
68 BT_LOGLEVEL_WARNING = 4,
69 BT_LOGLEVEL_NOTICE = 5,
70 BT_LOGLEVEL_INFO = 6,
71 BT_LOGLEVEL_DEBUG_SYSTEM = 7,
72 BT_LOGLEVEL_DEBUG_PROGRAM = 8,
73 BT_LOGLEVEL_DEBUG_PROCESS = 9,
74 BT_LOGLEVEL_DEBUG_MODULE = 10,
75 BT_LOGLEVEL_DEBUG_UNIT = 11,
76 BT_LOGLEVEL_DEBUG_FUNCTION = 12,
77 BT_LOGLEVEL_DEBUG_LINE = 13,
78 BT_LOGLEVEL_DEBUG = 14,
79};
80
81
5b80ddfb 82struct trace_descriptor *ctf_text_open_trace(const char *path, int flags,
20d0dcf9 83 void (*packet_seek)(struct stream_pos *pos, size_t index,
ae23d232 84 int whence), FILE *metadata_fp);
642ec66d
MD
85void ctf_text_close_trace(struct trace_descriptor *descriptor);
86
642ec66d
MD
87static
88rw_dispatch write_dispatch_table[] = {
89 [ CTF_TYPE_INTEGER ] = ctf_text_integer_write,
90 [ CTF_TYPE_FLOAT ] = ctf_text_float_write,
91 [ CTF_TYPE_ENUM ] = ctf_text_enum_write,
92 [ CTF_TYPE_STRING ] = ctf_text_string_write,
93 [ CTF_TYPE_STRUCT ] = ctf_text_struct_write,
94 [ CTF_TYPE_VARIANT ] = ctf_text_variant_write,
95 [ CTF_TYPE_ARRAY ] = ctf_text_array_write,
96 [ CTF_TYPE_SEQUENCE ] = ctf_text_sequence_write,
97};
98
99static
100struct format ctf_text_format = {
101 .open_trace = ctf_text_open_trace,
102 .close_trace = ctf_text_close_trace,
103};
104
d335f0f7
MD
105static GQuark Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN,
106 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END,
107 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED,
108 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE,
109 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE;
110
111static
112void __attribute__((constructor)) init_quarks(void)
113{
114 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN = g_quark_from_static_string("stream.packet.context.timestamp_begin");
115 Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END = g_quark_from_static_string("stream.packet.context.timestamp_end");
116 Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED = g_quark_from_static_string("stream.packet.context.events_discarded");
117 Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE = g_quark_from_static_string("stream.packet.context.content_size");
118 Q_STREAM_PACKET_CONTEXT_PACKET_SIZE = g_quark_from_static_string("stream.packet.context.packet_size");
119}
120
f133896d
MD
121static
122struct ctf_callsite *ctf_trace_callsite_lookup(struct ctf_trace *trace,
123 GQuark callsite_name)
124{
125 return g_hash_table_lookup(trace->callsites,
126 (gpointer) (unsigned long) callsite_name);
127}
128
d335f0f7
MD
129int print_field(struct definition *definition)
130{
131 /* Print all fields in verbose mode */
132 if (babeltrace_verbose)
133 return 1;
134
135 /* Filter out part of the packet context */
136 if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_BEGIN)
137 return 0;
138 if (definition->path == Q_STREAM_PACKET_CONTEXT_TIMESTAMP_END)
139 return 0;
140 if (definition->path == Q_STREAM_PACKET_CONTEXT_EVENTS_DISCARDED)
141 return 0;
142 if (definition->path == Q_STREAM_PACKET_CONTEXT_CONTENT_SIZE)
143 return 0;
144 if (definition->path == Q_STREAM_PACKET_CONTEXT_PACKET_SIZE)
145 return 0;
146
147 return 1;
148}
149
cba1661c
MD
150static
151void set_field_names_print(struct ctf_text_stream_pos *pos, enum field_item item)
152{
153 switch (item) {
154 case ITEM_SCOPE:
155 if (opt_all_field_names || opt_scope_field_names)
156 pos->print_names = 1;
157 else
158 pos->print_names = 0;
159 break;
160 case ITEM_HEADER:
161 if (opt_all_field_names || opt_header_field_names)
162 pos->print_names = 1;
163 else
164 pos->print_names = 0;
165 break;
166 case ITEM_CONTEXT:
167 if (opt_all_field_names || opt_context_field_names)
168 pos->print_names = 1;
169 else
170 pos->print_names = 0;
171 break;
172 case ITEM_PAYLOAD:
173 if (opt_all_field_names || opt_payload_field_names)
174 pos->print_names = 1;
175 else
176 pos->print_names = 0;
177
178 break;
179 default:
180 assert(0);
181 }
182}
183
39535929
MD
184static
185const char *print_loglevel(int value)
186{
187 switch (value) {
188 case -1:
189 return "";
190 case BT_LOGLEVEL_EMERG:
191 return "TRACE_EMERG";
192 case BT_LOGLEVEL_ALERT:
193 return "TRACE_ALERT";
194 case BT_LOGLEVEL_CRIT:
195 return "TRACE_CRIT";
196 case BT_LOGLEVEL_ERR:
197 return "TRACE_ERR";
198 case BT_LOGLEVEL_WARNING:
199 return "TRACE_WARNING";
200 case BT_LOGLEVEL_NOTICE:
201 return "TRACE_NOTICE";
202 case BT_LOGLEVEL_INFO:
203 return "TRACE_INFO";
204 case BT_LOGLEVEL_DEBUG_SYSTEM:
205 return "TRACE_DEBUG_SYSTEM";
206 case BT_LOGLEVEL_DEBUG_PROGRAM:
207 return "TRACE_DEBUG_PROGRAM";
208 case BT_LOGLEVEL_DEBUG_PROCESS:
209 return "TRACE_DEBUG_PROCESS";
210 case BT_LOGLEVEL_DEBUG_MODULE:
211 return "TRACE_DEBUG_MODULE";
212 case BT_LOGLEVEL_DEBUG_UNIT:
213 return "TRACE_DEBUG_UNIT";
214 case BT_LOGLEVEL_DEBUG_FUNCTION:
215 return "TRACE_DEBUG_FUNCTION";
216 case BT_LOGLEVEL_DEBUG_LINE:
217 return "TRACE_DEBUG_LINE";
218 case BT_LOGLEVEL_DEBUG:
219 return "TRACE_DEBUG";
220 default:
221 return "<<UNKNOWN>>";
222 }
223}
224
31262354 225static
9e88d150 226int ctf_text_write_event(struct stream_pos *ppos, struct ctf_stream_definition *stream)
e4195791 227
31262354
MD
228{
229 struct ctf_text_stream_pos *pos =
230 container_of(ppos, struct ctf_text_stream_pos, parent);
f380e105 231 struct ctf_stream_declaration *stream_class = stream->stream_class;
fd3382e8 232 int field_nr_saved;
4716614a 233 struct ctf_event_declaration *event_class;
c716f83b 234 struct ctf_event_definition *event;
c87a8eb2 235 uint64_t id;
31262354 236 int ret;
8c250d87 237 int dom_print = 0;
31262354 238
c87a8eb2 239 id = stream->event_id;
31262354
MD
240
241 if (id >= stream_class->events_by_id->len) {
3394d22e 242 fprintf(stderr, "[error] Event id %" PRIu64 " is outside range.\n", id);
31262354
MD
243 return -EINVAL;
244 }
e28d4618
MD
245 event = g_ptr_array_index(stream->events_by_id, id);
246 if (!event) {
3394d22e 247 fprintf(stderr, "[error] Event id %" PRIu64 " is unknown.\n", id);
e28d4618
MD
248 return -EINVAL;
249 }
31262354 250 event_class = g_ptr_array_index(stream_class->events_by_id, id);
9ff2b8ad
FO
251 if (!event_class) {
252 fprintf(stderr, "[error] Event class id %" PRIu64 " is unknown.\n", id);
31262354
MD
253 return -EINVAL;
254 }
255
fca04958
MD
256 /* Print events discarded */
257 if (stream->events_discarded) {
7d97fad9 258 fflush(pos->fp);
4c4ba021 259 fprintf(stderr, "[warning] Tracer discarded %" PRIu64 " events between [",
fca04958 260 stream->events_discarded);
03798a93
JD
261 if (opt_clock_cycles) {
262 ctf_print_timestamp(stderr, stream,
263 stream->prev_cycles_timestamp);
264 fprintf(stderr, "] and [");
265 ctf_print_timestamp(stderr, stream,
266 stream->prev_cycles_timestamp_end);
267 } else {
268 ctf_print_timestamp(stderr, stream,
269 stream->prev_real_timestamp);
270 fprintf(stderr, "] and [");
271 ctf_print_timestamp(stderr, stream,
272 stream->prev_real_timestamp_end);
273 }
a0b34fbb 274 fprintf(stderr, "]. You should consider recording a new trace with larger buffers or with fewer events enabled.\n");
fca04958
MD
275 fflush(stderr);
276 stream->events_discarded = 0;
277 }
278
5e2eb0ae 279 if (stream->has_timestamp) {
cba1661c 280 set_field_names_print(pos, ITEM_HEADER);
be60c7fb
MD
281 if (pos->print_names)
282 fprintf(pos->fp, "timestamp = ");
283 else
284 fprintf(pos->fp, "[");
03798a93
JD
285 if (opt_clock_cycles) {
286 ctf_print_timestamp(pos->fp, stream, stream->cycles_timestamp);
287 } else {
288 ctf_print_timestamp(pos->fp, stream, stream->real_timestamp);
289 }
be60c7fb
MD
290 if (!pos->print_names)
291 fprintf(pos->fp, "]");
aa6bffae 292
be60c7fb
MD
293 if (pos->print_names)
294 fprintf(pos->fp, ", ");
295 else
296 fprintf(pos->fp, " ");
297 }
359d7456 298 if ((opt_delta_field || opt_all_fields) && stream->has_timestamp) {
8d8ed9af
MD
299 uint64_t delta, delta_sec, delta_nsec;
300
301 set_field_names_print(pos, ITEM_HEADER);
302 if (pos->print_names)
303 fprintf(pos->fp, "delta = ");
304 else
305 fprintf(pos->fp, "(");
03798a93
JD
306 if (pos->last_real_timestamp != -1ULL) {
307 delta = stream->real_timestamp - pos->last_real_timestamp;
8d8ed9af
MD
308 delta_sec = delta / NSEC_PER_SEC;
309 delta_nsec = delta % NSEC_PER_SEC;
310 fprintf(pos->fp, "+%" PRIu64 ".%09" PRIu64,
311 delta_sec, delta_nsec);
312 } else {
313 fprintf(pos->fp, "+?.?????????");
314 }
315 if (!pos->print_names)
316 fprintf(pos->fp, ")");
317
318 if (pos->print_names)
319 fprintf(pos->fp, ", ");
320 else
321 fprintf(pos->fp, " ");
03798a93
JD
322 pos->last_real_timestamp = stream->real_timestamp;
323 pos->last_cycles_timestamp = stream->cycles_timestamp;
8d8ed9af
MD
324 }
325
359d7456 326 if ((opt_trace_field || opt_all_fields) && stream_class->trace->path[0] != '\0') {
82662ad4 327 set_field_names_print(pos, ITEM_HEADER);
8c250d87 328 if (pos->print_names) {
359d7456 329 fprintf(pos->fp, "trace = ");
8c250d87 330 }
82662ad4 331 fprintf(pos->fp, "%s", stream_class->trace->path);
82662ad4
MD
332 if (pos->print_names)
333 fprintf(pos->fp, ", ");
334 else
335 fprintf(pos->fp, " ");
336 }
c3815874
MD
337 if ((opt_trace_hostname_field || opt_all_fields || opt_trace_default_fields)
338 && stream_class->trace->env.hostname[0] != '\0') {
32cfb8ad
MD
339 set_field_names_print(pos, ITEM_HEADER);
340 if (pos->print_names) {
341 fprintf(pos->fp, "trace:hostname = ");
342 }
343 fprintf(pos->fp, "%s", stream_class->trace->env.hostname);
344 if (pos->print_names)
345 fprintf(pos->fp, ", ");
346 dom_print = 1;
347 }
c3815874 348 if ((opt_trace_domain_field || opt_all_fields) && stream_class->trace->env.domain[0] != '\0') {
8c250d87
MD
349 set_field_names_print(pos, ITEM_HEADER);
350 if (pos->print_names) {
351 fprintf(pos->fp, "trace:domain = ");
352 }
1842a4c8 353 fprintf(pos->fp, "%s", stream_class->trace->env.domain);
8c250d87
MD
354 if (pos->print_names)
355 fprintf(pos->fp, ", ");
356 dom_print = 1;
357 }
c3815874
MD
358 if ((opt_trace_procname_field || opt_all_fields || opt_trace_default_fields)
359 && stream_class->trace->env.procname[0] != '\0') {
8c250d87
MD
360 set_field_names_print(pos, ITEM_HEADER);
361 if (pos->print_names) {
362 fprintf(pos->fp, "trace:procname = ");
363 } else if (dom_print) {
364 fprintf(pos->fp, ":");
365 }
1842a4c8 366 fprintf(pos->fp, "%s", stream_class->trace->env.procname);
8c250d87
MD
367 if (pos->print_names)
368 fprintf(pos->fp, ", ");
369 dom_print = 1;
370 }
c3815874
MD
371 if ((opt_trace_vpid_field || opt_all_fields || opt_trace_default_fields)
372 && stream_class->trace->env.vpid != -1) {
8c250d87
MD
373 set_field_names_print(pos, ITEM_HEADER);
374 if (pos->print_names) {
375 fprintf(pos->fp, "trace:vpid = ");
376 } else if (dom_print) {
377 fprintf(pos->fp, ":");
378 }
1842a4c8 379 fprintf(pos->fp, "%d", stream_class->trace->env.vpid);
8c250d87
MD
380 if (pos->print_names)
381 fprintf(pos->fp, ", ");
382 dom_print = 1;
383 }
306eeaa6 384 if ((opt_loglevel_field || opt_all_fields) && event_class->loglevel != -1) {
d86d62f8
MD
385 set_field_names_print(pos, ITEM_HEADER);
386 if (pos->print_names) {
387 fprintf(pos->fp, "loglevel = ");
388 } else if (dom_print) {
389 fprintf(pos->fp, ":");
390 }
39535929
MD
391 fprintf(pos->fp, "%s (%d)",
392 print_loglevel(event_class->loglevel),
306eeaa6 393 event_class->loglevel);
d86d62f8
MD
394 if (pos->print_names)
395 fprintf(pos->fp, ", ");
f6714e20
MD
396 dom_print = 1;
397 }
398 if ((opt_emf_field || opt_all_fields) && event_class->model_emf_uri) {
399 set_field_names_print(pos, ITEM_HEADER);
400 if (pos->print_names) {
401 fprintf(pos->fp, "model.emf.uri = ");
402 } else if (dom_print) {
403 fprintf(pos->fp, ":");
404 }
9b3c1d6f 405 fprintf(pos->fp, "\"%s\"",
f6714e20
MD
406 g_quark_to_string(event_class->model_emf_uri));
407 if (pos->print_names)
408 fprintf(pos->fp, ", ");
d86d62f8
MD
409 dom_print = 1;
410 }
f133896d
MD
411 if ((opt_callsite_field || opt_all_fields)) {
412 struct ctf_callsite *callsite;
413
414 callsite = ctf_trace_callsite_lookup(stream_class->trace,
415 event_class->name);
416 if (callsite) {
417 set_field_names_print(pos, ITEM_HEADER);
418 if (pos->print_names) {
419 fprintf(pos->fp, "callsite = ");
420 } else if (dom_print) {
421 fprintf(pos->fp, ":");
422 }
423 fprintf(pos->fp, "[%s@%s:%" PRIu64 "]",
424 callsite->func, callsite->file,
425 callsite->line);
426 if (pos->print_names)
427 fprintf(pos->fp, ", ");
428 dom_print = 1;
429 }
430 }
8c250d87
MD
431 if (dom_print && !pos->print_names)
432 fprintf(pos->fp, " ");
cba1661c 433 set_field_names_print(pos, ITEM_HEADER);
31262354
MD
434 if (pos->print_names)
435 fprintf(pos->fp, "name = ");
8178fe48
MD
436 fprintf(pos->fp, "%s", g_quark_to_string(event_class->name));
437 if (pos->print_names)
fd3382e8 438 pos->field_nr++;
8178fe48 439 else
fd3382e8 440 fprintf(pos->fp, ":");
31262354 441
e28d4618
MD
442 /* print cpuid field from packet context */
443 if (stream->stream_packet_context) {
444 if (pos->field_nr++ != 0)
445 fprintf(pos->fp, ",");
cba1661c 446 set_field_names_print(pos, ITEM_SCOPE);
e28d4618
MD
447 if (pos->print_names)
448 fprintf(pos->fp, " stream.packet.context =");
449 field_nr_saved = pos->field_nr;
450 pos->field_nr = 0;
cba1661c 451 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618
MD
452 ret = generic_rw(ppos, &stream->stream_packet_context->p);
453 if (ret)
454 goto error;
455 pos->field_nr = field_nr_saved;
456 }
457
764af3f4 458 /* Only show the event header in verbose mode */
e28d4618 459 if (babeltrace_verbose && stream->stream_event_header) {
fd3382e8
MD
460 if (pos->field_nr++ != 0)
461 fprintf(pos->fp, ",");
cba1661c 462 set_field_names_print(pos, ITEM_SCOPE);
31262354 463 if (pos->print_names)
fd3382e8
MD
464 fprintf(pos->fp, " stream.event.header =");
465 field_nr_saved = pos->field_nr;
466 pos->field_nr = 0;
cba1661c 467 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 468 ret = generic_rw(ppos, &stream->stream_event_header->p);
31262354
MD
469 if (ret)
470 goto error;
fd3382e8 471 pos->field_nr = field_nr_saved;
31262354
MD
472 }
473
474 /* print stream-declared event context */
e28d4618 475 if (stream->stream_event_context) {
fd3382e8
MD
476 if (pos->field_nr++ != 0)
477 fprintf(pos->fp, ",");
cba1661c 478 set_field_names_print(pos, ITEM_SCOPE);
31262354 479 if (pos->print_names)
fd3382e8
MD
480 fprintf(pos->fp, " stream.event.context =");
481 field_nr_saved = pos->field_nr;
482 pos->field_nr = 0;
cba1661c 483 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 484 ret = generic_rw(ppos, &stream->stream_event_context->p);
31262354
MD
485 if (ret)
486 goto error;
fd3382e8 487 pos->field_nr = field_nr_saved;
31262354
MD
488 }
489
490 /* print event-declared event context */
e28d4618 491 if (event->event_context) {
fd3382e8
MD
492 if (pos->field_nr++ != 0)
493 fprintf(pos->fp, ",");
cba1661c 494 set_field_names_print(pos, ITEM_SCOPE);
31262354 495 if (pos->print_names)
fd3382e8
MD
496 fprintf(pos->fp, " event.context =");
497 field_nr_saved = pos->field_nr;
498 pos->field_nr = 0;
cba1661c 499 set_field_names_print(pos, ITEM_CONTEXT);
e28d4618 500 ret = generic_rw(ppos, &event->event_context->p);
31262354
MD
501 if (ret)
502 goto error;
fd3382e8 503 pos->field_nr = field_nr_saved;
31262354
MD
504 }
505
506 /* Read and print event payload */
e28d4618 507 if (event->event_fields) {
fd3382e8
MD
508 if (pos->field_nr++ != 0)
509 fprintf(pos->fp, ",");
cba1661c 510 set_field_names_print(pos, ITEM_SCOPE);
31262354 511 if (pos->print_names)
fd3382e8
MD
512 fprintf(pos->fp, " event.fields =");
513 field_nr_saved = pos->field_nr;
514 pos->field_nr = 0;
cba1661c 515 set_field_names_print(pos, ITEM_PAYLOAD);
e28d4618 516 ret = generic_rw(ppos, &event->event_fields->p);
31262354
MD
517 if (ret)
518 goto error;
fd3382e8 519 pos->field_nr = field_nr_saved;
31262354 520 }
fd3382e8 521 /* newline */
31262354 522 fprintf(pos->fp, "\n");
fd3382e8 523 pos->field_nr = 0;
31262354
MD
524
525 return 0;
526
527error:
3394d22e 528 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
529 return ret;
530}
531
532
5b80ddfb 533struct trace_descriptor *ctf_text_open_trace(const char *path, int flags,
20d0dcf9 534 void (*packet_seek)(struct stream_pos *pos, size_t index,
ae23d232 535 int whence), FILE *metadata_fp)
642ec66d
MD
536{
537 struct ctf_text_stream_pos *pos;
538 FILE *fp;
539
540 pos = g_new0(struct ctf_text_stream_pos, 1);
541
03798a93
JD
542 pos->last_real_timestamp = -1ULL;
543 pos->last_cycles_timestamp = -1ULL;
642ec66d 544 switch (flags & O_ACCMODE) {
989c73bc 545 case O_RDWR:
b61922b5 546 if (!path)
6cf7957b
MD
547 fp = stdout;
548 else
549 fp = fopen(path, "w");
642ec66d
MD
550 if (!fp)
551 goto error;
552 pos->fp = fp;
553 pos->parent.rw_table = write_dispatch_table;
31262354 554 pos->parent.event_cb = ctf_text_write_event;
cba1661c 555 pos->print_names = 0;
642ec66d
MD
556 break;
557 case O_RDONLY:
558 default:
3394d22e 559 fprintf(stderr, "[error] Incorrect open flags.\n");
642ec66d
MD
560 goto error;
561 }
562
563 return &pos->trace_descriptor;
564error:
565 g_free(pos);
566 return NULL;
567}
568
569void ctf_text_close_trace(struct trace_descriptor *td)
570{
571 struct ctf_text_stream_pos *pos =
572 container_of(td, struct ctf_text_stream_pos, trace_descriptor);
573 fclose(pos->fp);
574 g_free(pos);
575}
576
577void __attribute__((constructor)) ctf_text_init(void)
578{
579 int ret;
580
581 ctf_text_format.name = g_quark_from_static_string("text");
582 ret = bt_register_format(&ctf_text_format);
583 assert(!ret);
584}
585
586/* TODO: finalize */
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