text output
[babeltrace.git] / formats / ctf / ctf.c
CommitLineData
fc93b2bd
MD
1/*
2 * BabelTrace - Common Trace Format (CTF)
3 *
4 * Format registration.
5 *
c054553d 6 * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
fc93b2bd 7 *
ccd7e1c8
MD
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
fc93b2bd 14 *
ccd7e1c8
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15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
fc93b2bd
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17 */
18
19#include <babeltrace/format.h>
20#include <babeltrace/ctf/types.h>
bbefb8dd 21#include <babeltrace/ctf/metadata.h>
65102a8c 22#include <babeltrace/babeltrace.h>
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MD
23#include <inttypes.h>
24#include <uuid/uuid.h>
25#include <sys/mman.h>
bbefb8dd 26#include <errno.h>
bbefb8dd 27#include <sys/types.h>
65102a8c 28#include <sys/stat.h>
bbefb8dd 29#include <fcntl.h>
65102a8c 30#include <dirent.h>
bbefb8dd 31#include <glib.h>
65102a8c
MD
32#include <unistd.h>
33#include <stdlib.h>
34
65102a8c
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35#include "metadata/ctf-scanner.h"
36#include "metadata/ctf-parser.h"
37#include "metadata/ctf-ast.h"
38
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39/*
40 * We currently simply map a page to read the packet header and packet
8c572eba 41 * context to get the packet length and content length. (in bits)
0f980a35 42 */
8c572eba
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43#define MAX_PACKET_HEADER_LEN (getpagesize() * CHAR_BIT)
44#define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT)
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45#define UUID_LEN 16 /* uuid by value len */
46
65102a8c 47extern int yydebug;
bbefb8dd 48
bbefb8dd
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49struct trace_descriptor *ctf_open_trace(const char *path, int flags);
50void ctf_close_trace(struct trace_descriptor *descriptor);
fc93b2bd 51
1ae19169
MD
52static
53rw_dispatch read_dispatch_table[] = {
d11e9c49
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54 [ CTF_TYPE_INTEGER ] = ctf_integer_read,
55 [ CTF_TYPE_FLOAT ] = ctf_float_read,
56 [ CTF_TYPE_ENUM ] = ctf_enum_read,
57 [ CTF_TYPE_STRING ] = ctf_string_read,
58 [ CTF_TYPE_STRUCT ] = ctf_struct_rw,
59 [ CTF_TYPE_VARIANT ] = ctf_variant_rw,
60 [ CTF_TYPE_ARRAY ] = ctf_array_rw,
61 [ CTF_TYPE_SEQUENCE ] = ctf_sequence_rw,
62};
63
1ae19169
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64static
65rw_dispatch write_dispatch_table[] = {
d11e9c49
MD
66 [ CTF_TYPE_INTEGER ] = ctf_integer_write,
67 [ CTF_TYPE_FLOAT ] = ctf_float_write,
68 [ CTF_TYPE_ENUM ] = ctf_enum_write,
69 [ CTF_TYPE_STRING ] = ctf_string_write,
70 [ CTF_TYPE_STRUCT ] = ctf_struct_rw,
71 [ CTF_TYPE_VARIANT ] = ctf_variant_rw,
72 [ CTF_TYPE_ARRAY ] = ctf_array_rw,
73 [ CTF_TYPE_SEQUENCE ] = ctf_sequence_rw,
74};
75
1ae19169 76static
d11e9c49 77struct format ctf_format = {
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78 .open_trace = ctf_open_trace,
79 .close_trace = ctf_close_trace,
fc93b2bd
MD
80};
81
8563e754 82void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags)
8c572eba
MD
83{
84 pos->fd = fd;
85 pos->mmap_offset = 0;
86 pos->packet_size = 0;
87 pos->content_size = 0;
88 pos->content_size_loc = NULL;
89 pos->base = NULL;
90 pos->offset = 0;
91 pos->dummy = false;
8c572eba 92 pos->cur_index = 0;
8563e754
MD
93 if (fd >= 0)
94 pos->packet_index = g_array_new(FALSE, TRUE,
95 sizeof(struct packet_index));
96 else
97 pos->packet_index = NULL;
8563e754
MD
98 switch (open_flags & O_ACCMODE) {
99 case O_RDONLY:
100 pos->prot = PROT_READ;
101 pos->flags = MAP_PRIVATE;
102 pos->parent.rw_table = read_dispatch_table;
103 break;
104 case O_WRONLY:
105 case O_RDWR:
106 pos->prot = PROT_WRITE; /* Write has priority */
107 pos->flags = MAP_SHARED;
108 pos->parent.rw_table = write_dispatch_table;
109 if (fd >= 0)
46322b33 110 ctf_move_pos_slow(pos, 0); /* position for write */
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111 break;
112 default:
113 assert(0);
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114 }
115}
116
46322b33 117void ctf_fini_pos(struct ctf_stream_pos *pos)
8c572eba
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118{
119 int ret;
120
121 if (pos->prot == PROT_WRITE && pos->content_size_loc)
122 *pos->content_size_loc = pos->offset;
123 if (pos->base) {
124 /* unmap old base */
125 ret = munmap(pos->base, pos->packet_size / CHAR_BIT);
126 if (ret) {
46322b33 127 fprintf(stdout, "[error] Unable to unmap old base: %s.\n",
8c572eba
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128 strerror(errno));
129 assert(0);
130 }
131 }
132 (void) g_array_free(pos->packet_index, TRUE);
133}
134
46322b33 135void ctf_move_pos_slow(struct ctf_stream_pos *pos, size_t offset)
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136{
137 int ret;
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138 off_t off;
139 struct packet_index *index;
0f980a35 140
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141
142 if (pos->prot == PROT_WRITE && pos->content_size_loc)
143 *pos->content_size_loc = pos->offset;
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144
145 if (pos->base) {
146 /* unmap old base */
8c572eba 147 ret = munmap(pos->base, pos->packet_size / CHAR_BIT);
0f980a35 148 if (ret) {
46322b33 149 fprintf(stdout, "[error] Unable to unmap old base: %s.\n",
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150 strerror(errno));
151 assert(0);
152 }
153 }
154
8c572eba 155 /*
46322b33 156 * The caller should never ask for ctf_move_pos across packets,
8c572eba
MD
157 * except to get exactly at the beginning of the next packet.
158 */
159 if (pos->prot == PROT_WRITE) {
160 /* The writer will add padding */
161 assert(pos->offset + offset == pos->packet_size);
162
163 /*
164 * Don't increment for initial stream move (only condition where
165 * pos->offset can be 0.
166 */
167 if (pos->offset)
168 pos->mmap_offset += WRITE_PACKET_LEN / CHAR_BIT;
169 pos->content_size = -1U; /* Unknown at this point */
170 pos->packet_size = WRITE_PACKET_LEN;
171 off = posix_fallocate(pos->fd, pos->mmap_offset, pos->packet_size / CHAR_BIT);
172 assert(off >= 0);
173 } else {
174 /* The reader will expect us to skip padding */
175 assert(pos->offset + offset == pos->content_size);
176
177 /*
178 * Don't increment for initial stream move (only condition where
179 * pos->offset can be 0).
180 */
181 if (pos->offset)
182 ++pos->cur_index;
183 index = &g_array_index(pos->packet_index, struct packet_index,
184 pos->cur_index);
185 pos->mmap_offset = index->offset;
186
187 /* Lookup context/packet size in index */
188 pos->content_size = index->content_size;
189 pos->packet_size = index->packet_size;
190 }
0f980a35 191 /* map new base. Need mapping length from header. */
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192 pos->base = mmap(NULL, pos->packet_size / CHAR_BIT, pos->prot,
193 pos->flags, pos->fd, pos->mmap_offset);
194 pos->offset = 0;
0f980a35
MD
195}
196
65102a8c
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197/*
198 * TODO: for now, we treat the metadata file as a simple text file
199 * (without any header nor packets nor padding).
200 */
201static
46322b33 202int ctf_open_trace_metadata_read(struct ctf_trace *td)
65102a8c
MD
203{
204 struct ctf_scanner *scanner;
205 FILE *fp;
206 int ret = 0;
207
46322b33
MD
208 td->metadata.pos.fd = openat(td->dirfd, "metadata", O_RDONLY);
209 if (td->metadata.pos.fd < 0) {
65102a8c 210 fprintf(stdout, "Unable to open metadata.\n");
46322b33 211 return td->metadata.pos.fd;
65102a8c
MD
212 }
213
214 if (babeltrace_debug)
215 yydebug = 1;
216
46322b33 217 fp = fdopen(td->metadata.pos.fd, "r");
65102a8c 218 if (!fp) {
46322b33 219 fprintf(stdout, "[error] Unable to open metadata stream.\n");
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MD
220 ret = -errno;
221 goto end_stream;
222 }
223
224 scanner = ctf_scanner_alloc(fp);
225 if (!scanner) {
46322b33 226 fprintf(stdout, "[error] Error allocating scanner\n");
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MD
227 ret = -ENOMEM;
228 goto end_scanner_alloc;
229 }
230 ret = ctf_scanner_append_ast(scanner);
231 if (ret) {
46322b33 232 fprintf(stdout, "[error] Error creating AST\n");
65102a8c
MD
233 goto end;
234 }
235
236 if (babeltrace_debug) {
237 ret = ctf_visitor_print_xml(stdout, 0, &scanner->ast->root);
238 if (ret) {
46322b33 239 fprintf(stdout, "[error] Error visiting AST for XML output\n");
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MD
240 goto end;
241 }
242 }
243
244 ret = ctf_visitor_semantic_check(stdout, 0, &scanner->ast->root);
245 if (ret) {
46322b33 246 fprintf(stdout, "[error] Error in CTF semantic validation %d\n", ret);
65102a8c
MD
247 goto end;
248 }
249 ret = ctf_visitor_construct_metadata(stdout, 0, &scanner->ast->root,
46322b33 250 td, BYTE_ORDER);
65102a8c 251 if (ret) {
46322b33 252 fprintf(stdout, "[error] Error in CTF metadata constructor %d\n", ret);
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MD
253 goto end;
254 }
255end:
256 ctf_scanner_free(scanner);
257end_scanner_alloc:
258 fclose(fp);
259end_stream:
46322b33 260 close(td->metadata.pos.fd);
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261 return ret;
262}
263
264
265static
46322b33 266int create_stream_packet_index(struct ctf_trace *td,
0f980a35
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267 struct ctf_file_stream *file_stream)
268{
269 struct ctf_stream *stream;
270 int len_index;
46322b33 271 struct ctf_stream_pos *pos;
0f980a35
MD
272 struct stat filestats;
273 struct packet_index packet_index;
274 int first_packet = 1;
275 int ret;
276
277 pos = &file_stream->pos;
278
279 ret = fstat(pos->fd, &filestats);
280 if (ret < 0)
281 return ret;
282
283 for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) {
284 uint64_t stream_id = 0;
285
286 if (pos->base) {
287 /* unmap old base */
8c572eba 288 ret = munmap(pos->base, pos->packet_size / CHAR_BIT);
0f980a35 289 if (ret) {
46322b33 290 fprintf(stdout, "[error] Unable to unmap old base: %s.\n",
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MD
291 strerror(errno));
292 return ret;
293 }
8c572eba 294 pos->base = NULL;
0f980a35
MD
295 }
296 /* map new base. Need mapping length from header. */
8c572eba 297 pos->base = mmap(NULL, MAX_PACKET_HEADER_LEN / CHAR_BIT, PROT_READ,
0f980a35 298 MAP_PRIVATE, pos->fd, pos->mmap_offset);
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MD
299 pos->content_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */
300 pos->packet_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */
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301 pos->offset = 0; /* Position of the packet header */
302
8c572eba
MD
303 packet_index.offset = pos->mmap_offset;
304 packet_index.content_size = 0;
305 packet_index.packet_size = 0;
306
0f980a35 307 /* read and check header, set stream id (and check) */
46322b33 308 if (td->packet_header) {
0f980a35 309 /* Read packet header */
d11e9c49 310 generic_rw(&pos->parent, &td->packet_header->p);
0f980a35 311
46322b33 312 len_index = struct_declaration_lookup_field_index(td->packet_header->declaration, g_quark_from_static_string("magic"));
0f980a35
MD
313 if (len_index >= 0) {
314 struct definition_integer *defint;
315 struct field *field;
316
46322b33 317 field = struct_definition_get_field_from_index(td->packet_header, len_index);
0f980a35
MD
318 assert(field->definition->declaration->id == CTF_TYPE_INTEGER);
319 defint = container_of(field->definition, struct definition_integer, p);
320 assert(defint->declaration->signedness == FALSE);
321 if (defint->value._unsigned != CTF_MAGIC) {
8c572eba
MD
322 fprintf(stdout, "[error] Invalid magic number %" PRIX64 " at packet %u (file offset %zd).\n",
323 defint->value._unsigned,
324 file_stream->pos.packet_index->len,
325 (ssize_t) pos->mmap_offset);
0f980a35
MD
326 return -EINVAL;
327 }
328 }
329
330 /* check uuid */
46322b33 331 len_index = struct_declaration_lookup_field_index(td->packet_header->declaration, g_quark_from_static_string("trace_uuid"));
0f980a35
MD
332 if (len_index >= 0) {
333 struct definition_array *defarray;
334 struct field *field;
335 uint64_t i;
336 uint8_t uuidval[UUID_LEN];
337
46322b33 338 field = struct_definition_get_field_from_index(td->packet_header, len_index);
0f980a35
MD
339 assert(field->definition->declaration->id == CTF_TYPE_ARRAY);
340 defarray = container_of(field->definition, struct definition_array, p);
3838df27 341 assert(array_len(defarray) == UUID_LEN);
0f980a35
MD
342 assert(defarray->declaration->elem->id == CTF_TYPE_INTEGER);
343
344 for (i = 0; i < UUID_LEN; i++) {
345 struct definition *elem;
346 struct definition_integer *defint;
347
348 elem = array_index(defarray, i);
349 assert(elem);
350 defint = container_of(elem, struct definition_integer, p);
351 uuidval[i] = defint->value._unsigned;
352 }
46322b33 353 ret = uuid_compare(td->uuid, uuidval);
0f980a35
MD
354 if (ret) {
355 fprintf(stdout, "[error] Unique Universal Identifiers do not match.\n");
356 return -EINVAL;
357 }
358 }
359
360
46322b33 361 len_index = struct_declaration_lookup_field_index(td->packet_header->declaration, g_quark_from_static_string("stream_id"));
0f980a35
MD
362 if (len_index >= 0) {
363 struct definition_integer *defint;
364 struct field *field;
365
46322b33 366 field = struct_definition_get_field_from_index(td->packet_header, len_index);
0f980a35
MD
367 assert(field->definition->declaration->id == CTF_TYPE_INTEGER);
368 defint = container_of(field->definition, struct definition_integer, p);
369 assert(defint->declaration->signedness == FALSE);
370 stream_id = defint->value._unsigned;
371 }
372 }
373
374 if (!first_packet && file_stream->stream_id != stream_id) {
375 fprintf(stdout, "[error] Stream ID is changing within a stream.\n");
376 return -EINVAL;
377 }
378 if (first_packet) {
379 file_stream->stream_id = stream_id;
46322b33 380 if (stream_id >= td->streams->len) {
0f980a35
MD
381 fprintf(stdout, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
382 return -EINVAL;
383 }
46322b33 384 stream = g_ptr_array_index(td->streams, stream_id);
0f980a35
MD
385 if (!stream) {
386 fprintf(stdout, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id);
387 return -EINVAL;
388 }
389 file_stream->stream = stream;
390 }
391 first_packet = 0;
392
dc48ecad
MD
393 if (stream->packet_context) {
394 /* Read packet context */
d11e9c49 395 generic_rw(&pos->parent, &stream->packet_context->p);
dc48ecad
MD
396
397 /* read content size from header */
398 len_index = struct_declaration_lookup_field_index(stream->packet_context->declaration, g_quark_from_static_string("content_size"));
399 if (len_index >= 0) {
400 struct definition_integer *defint;
401 struct field *field;
402
403 field = struct_definition_get_field_from_index(stream->packet_context, len_index);
404 assert(field->definition->declaration->id == CTF_TYPE_INTEGER);
405 defint = container_of(field->definition, struct definition_integer, p);
406 assert(defint->declaration->signedness == FALSE);
8c572eba 407 packet_index.content_size = defint->value._unsigned;
dc48ecad
MD
408 } else {
409 /* Use file size for packet size */
8c572eba 410 packet_index.content_size = filestats.st_size * CHAR_BIT;
dc48ecad
MD
411 }
412
413 /* read packet size from header */
414 len_index = struct_declaration_lookup_field_index(stream->packet_context->declaration, g_quark_from_static_string("packet_size"));
415 if (len_index >= 0) {
416 struct definition_integer *defint;
417 struct field *field;
418
419 field = struct_definition_get_field_from_index(stream->packet_context, len_index);
420 assert(field->definition->declaration->id == CTF_TYPE_INTEGER);
421 defint = container_of(field->definition, struct definition_integer, p);
422 assert(defint->declaration->signedness == FALSE);
8c572eba 423 packet_index.packet_size = defint->value._unsigned;
dc48ecad
MD
424 } else {
425 /* Use content size if non-zero, else file size */
8c572eba 426 packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT;
dc48ecad 427 }
0f980a35
MD
428 } else {
429 /* Use file size for packet size */
8c572eba 430 packet_index.content_size = filestats.st_size * CHAR_BIT;
0f980a35 431 /* Use content size if non-zero, else file size */
8c572eba 432 packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT;
0f980a35
MD
433 }
434
0f980a35
MD
435 /* add index to packet array */
436 g_array_append_val(file_stream->pos.packet_index, packet_index);
437
8c572eba 438 pos->mmap_offset += packet_index.packet_size / CHAR_BIT;
0f980a35
MD
439 }
440
441 return 0;
442}
443
444/*
445 * Note: many file streams can inherit from the same stream class
446 * description (metadata).
447 */
448static
46322b33 449int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags)
0f980a35
MD
450{
451 int ret;
452 struct ctf_file_stream *file_stream;
453
46322b33 454 ret = openat(td->dirfd, path, flags);
0f980a35
MD
455 if (ret < 0)
456 goto error;
457 file_stream = g_new0(struct ctf_file_stream, 1);
8563e754 458 ctf_init_pos(&file_stream->pos, ret, flags);
0f980a35
MD
459 ret = create_stream_packet_index(td, file_stream);
460 if (ret)
461 goto error_index;
462 /* Add stream file to stream class */
463 g_ptr_array_add(file_stream->stream->files, file_stream);
464 return 0;
465
466error_index:
46322b33 467 ctf_fini_pos(&file_stream->pos);
0f980a35
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468 close(file_stream->pos.fd);
469 g_free(file_stream);
470error:
65102a8c
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471 return ret;
472}
473
bbefb8dd 474static
46322b33 475int ctf_open_trace_read(struct ctf_trace *td, const char *path, int flags)
bbefb8dd
MD
476{
477 int ret;
65102a8c
MD
478 struct dirent *dirent;
479 struct dirent *diriter;
480 size_t dirent_len;
bbefb8dd 481
46322b33 482 td->flags = flags;
bbefb8dd
MD
483
484 /* Open trace directory */
46322b33
MD
485 td->dir = opendir(path);
486 if (!td->dir) {
dc48ecad 487 fprintf(stdout, "[error] Unable to open trace directory.\n");
bbefb8dd
MD
488 ret = -ENOENT;
489 goto error;
490 }
491
46322b33
MD
492 td->dirfd = open(path, 0);
493 if (td->dirfd < 0) {
dc48ecad 494 fprintf(stdout, "[error] Unable to open trace directory file descriptor.\n");
65102a8c
MD
495 ret = -ENOENT;
496 goto error_dirfd;
497 }
0f980a35 498
46322b33 499 td->streams = g_ptr_array_new();
0f980a35 500
65102a8c
MD
501 /*
502 * Keep the metadata file separate.
503 */
bbefb8dd 504
65102a8c
MD
505 ret = ctf_open_trace_metadata_read(td);
506 if (ret) {
507 goto error_metadata;
508 }
bbefb8dd
MD
509
510 /*
511 * Open each stream: for each file, try to open, check magic
512 * number, and get the stream ID to add to the right location in
513 * the stream array.
bbefb8dd
MD
514 */
515
65102a8c 516 dirent_len = offsetof(struct dirent, d_name) +
46322b33 517 fpathconf(td->dirfd, _PC_NAME_MAX) + 1;
bbefb8dd 518
65102a8c 519 dirent = malloc(dirent_len);
bbefb8dd 520
65102a8c 521 for (;;) {
46322b33 522 ret = readdir_r(td->dir, dirent, &diriter);
65102a8c 523 if (ret) {
dc48ecad 524 fprintf(stdout, "[error] Readdir error.\n");
65102a8c 525 goto readdir_error;
65102a8c
MD
526 }
527 if (!diriter)
528 break;
529 if (!strcmp(diriter->d_name, ".")
530 || !strcmp(diriter->d_name, "..")
531 || !strcmp(diriter->d_name, "metadata"))
532 continue;
dc48ecad
MD
533 ret = ctf_open_file_stream_read(td, diriter->d_name, flags);
534 if (ret) {
535 fprintf(stdout, "[error] Open file stream error.\n");
536 goto readdir_error;
537 }
65102a8c 538 }
bbefb8dd 539
65102a8c 540 free(dirent);
bbefb8dd 541 return 0;
65102a8c
MD
542
543readdir_error:
544 free(dirent);
545error_metadata:
46322b33
MD
546 g_ptr_array_free(td->streams, TRUE);
547 close(td->dirfd);
65102a8c 548error_dirfd:
46322b33 549 closedir(td->dir);
bbefb8dd
MD
550error:
551 return ret;
552}
553
554static
46322b33 555int ctf_open_trace_write(struct ctf_trace *td, const char *path, int flags)
bbefb8dd
MD
556{
557 int ret;
558
559 ret = mkdir(path, S_IRWXU|S_IRWXG);
560 if (ret)
561 return ret;
562
65102a8c 563 /* Open trace directory */
46322b33
MD
564 td->dir = opendir(path);
565 if (!td->dir) {
566 fprintf(stdout, "[error] Unable to open trace directory.\n");
65102a8c
MD
567 ret = -ENOENT;
568 goto error;
569 }
570
571
bbefb8dd 572 return 0;
65102a8c
MD
573
574error:
575 return ret;
bbefb8dd
MD
576}
577
578struct trace_descriptor *ctf_open_trace(const char *path, int flags)
579{
46322b33 580 struct ctf_trace *td;
bbefb8dd
MD
581 int ret;
582
46322b33 583 td = g_new0(struct ctf_trace, 1);
bbefb8dd 584
8c572eba 585 switch (flags & O_ACCMODE) {
bbefb8dd
MD
586 case O_RDONLY:
587 ret = ctf_open_trace_read(td, path, flags);
588 if (ret)
589 goto error;
590 break;
591 case O_WRONLY:
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592 fprintf(stdout, "[error] Opening CTF traces for output is not supported yet.\n");
593 goto error;
594#if 0
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595 ret = ctf_open_trace_write(td, path, flags);
596 if (ret)
597 goto error;
46322b33 598#endif //0
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599 break;
600 default:
46322b33 601 fprintf(stdout, "[error] Incorrect open flags.\n");
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602 goto error;
603 }
604
46322b33 605 return &td->parent;
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606error:
607 g_free(td);
608 return NULL;
609}
610
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611static
612void ctf_close_file_stream(struct ctf_file_stream *file_stream)
613{
46322b33 614 ctf_fini_pos(&file_stream->pos);
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615 close(file_stream->pos.fd);
616}
617
46322b33 618void ctf_close_trace(struct trace_descriptor *tdp)
bbefb8dd 619{
46322b33 620 struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent);
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621 int i;
622
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623 if (td->streams) {
624 for (i = 0; i < td->streams->len; i++) {
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625 struct ctf_stream *stream;
626 int j;
46322b33 627 stream = g_ptr_array_index(td->streams, i);
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628 for (j = 0; j < stream->files->len; j++) {
629 struct ctf_file_stream *file_stream;
2c117823 630 file_stream = g_ptr_array_index(stream->files, j);
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631 ctf_close_file_stream(file_stream);
632 }
633
634 }
46322b33 635 g_ptr_array_free(td->streams, TRUE);
0f980a35 636 }
46322b33 637 closedir(td->dir);
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638 g_free(td);
639}
640
7fb21036 641void __attribute__((constructor)) ctf_init(void)
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642{
643 int ret;
644
4c8bfb7e 645 ctf_format.name = g_quark_from_static_string("ctf");
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646 ret = bt_register_format(&ctf_format);
647 assert(!ret);
648}
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649
650/* TODO: finalize */
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