Commit | Line | Data |
---|---|---|
fc93b2bd MD |
1 | /* |
2 | * BabelTrace - Common Trace Format (CTF) | |
3 | * | |
4 | * Format registration. | |
5 | * | |
64fa3fec MD |
6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation |
7 | * | |
8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
fc93b2bd | 9 | * |
ccd7e1c8 MD |
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: | |
fc93b2bd | 16 | * |
ccd7e1c8 MD |
17 | * The above copyright notice and this permission notice shall be included in |
18 | * all copies or substantial portions of the Software. | |
fc93b2bd MD |
19 | */ |
20 | ||
21 | #include <babeltrace/format.h> | |
22 | #include <babeltrace/ctf/types.h> | |
bbefb8dd | 23 | #include <babeltrace/ctf/metadata.h> |
65102a8c | 24 | #include <babeltrace/babeltrace.h> |
0f980a35 | 25 | #include <inttypes.h> |
b4c19c1e | 26 | #include <stdio.h> |
0f980a35 MD |
27 | #include <uuid/uuid.h> |
28 | #include <sys/mman.h> | |
bbefb8dd | 29 | #include <errno.h> |
b4c19c1e | 30 | #include <endian.h> |
bbefb8dd | 31 | #include <sys/types.h> |
65102a8c | 32 | #include <sys/stat.h> |
bbefb8dd | 33 | #include <fcntl.h> |
65102a8c | 34 | #include <dirent.h> |
bbefb8dd | 35 | #include <glib.h> |
65102a8c MD |
36 | #include <unistd.h> |
37 | #include <stdlib.h> | |
38 | ||
65102a8c MD |
39 | #include "metadata/ctf-scanner.h" |
40 | #include "metadata/ctf-parser.h" | |
41 | #include "metadata/ctf-ast.h" | |
42 | ||
0f980a35 MD |
43 | /* |
44 | * We currently simply map a page to read the packet header and packet | |
8c572eba | 45 | * context to get the packet length and content length. (in bits) |
0f980a35 | 46 | */ |
8c572eba MD |
47 | #define MAX_PACKET_HEADER_LEN (getpagesize() * CHAR_BIT) |
48 | #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) | |
0f980a35 MD |
49 | #define UUID_LEN 16 /* uuid by value len */ |
50 | ||
a0fe7d97 MD |
51 | #ifndef min |
52 | #define min(a, b) (((a) < (b)) ? (a) : (b)) | |
53 | #endif | |
54 | ||
65102a8c | 55 | extern int yydebug; |
bbefb8dd | 56 | |
e9378815 | 57 | static |
bbefb8dd | 58 | struct trace_descriptor *ctf_open_trace(const char *path, int flags); |
e9378815 | 59 | static |
bbefb8dd | 60 | void ctf_close_trace(struct trace_descriptor *descriptor); |
fc93b2bd | 61 | |
1ae19169 MD |
62 | static |
63 | rw_dispatch read_dispatch_table[] = { | |
d11e9c49 MD |
64 | [ CTF_TYPE_INTEGER ] = ctf_integer_read, |
65 | [ CTF_TYPE_FLOAT ] = ctf_float_read, | |
66 | [ CTF_TYPE_ENUM ] = ctf_enum_read, | |
67 | [ CTF_TYPE_STRING ] = ctf_string_read, | |
68 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
69 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
70 | [ CTF_TYPE_ARRAY ] = ctf_array_read, |
71 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_read, | |
d11e9c49 MD |
72 | }; |
73 | ||
1ae19169 MD |
74 | static |
75 | rw_dispatch write_dispatch_table[] = { | |
d11e9c49 MD |
76 | [ CTF_TYPE_INTEGER ] = ctf_integer_write, |
77 | [ CTF_TYPE_FLOAT ] = ctf_float_write, | |
78 | [ CTF_TYPE_ENUM ] = ctf_enum_write, | |
79 | [ CTF_TYPE_STRING ] = ctf_string_write, | |
80 | [ CTF_TYPE_STRUCT ] = ctf_struct_rw, | |
81 | [ CTF_TYPE_VARIANT ] = ctf_variant_rw, | |
81dee1bb MD |
82 | [ CTF_TYPE_ARRAY ] = ctf_array_write, |
83 | [ CTF_TYPE_SEQUENCE ] = ctf_sequence_write, | |
d11e9c49 MD |
84 | }; |
85 | ||
1ae19169 | 86 | static |
d11e9c49 | 87 | struct format ctf_format = { |
bbefb8dd MD |
88 | .open_trace = ctf_open_trace, |
89 | .close_trace = ctf_close_trace, | |
fc93b2bd MD |
90 | }; |
91 | ||
2b9a764d MD |
92 | static |
93 | void ctf_update_timestamp(struct ctf_stream *stream, | |
94 | struct definition_integer *integer_definition) | |
95 | { | |
96 | struct declaration_integer *integer_declaration = | |
97 | integer_definition->declaration; | |
98 | uint64_t oldval, newval, updateval; | |
99 | ||
100 | if (integer_declaration->len == 64) { | |
101 | stream->timestamp = integer_definition->value._unsigned; | |
102 | return; | |
103 | } | |
104 | /* keep low bits */ | |
105 | oldval = stream->timestamp; | |
106 | oldval &= (1ULL << integer_declaration->len) - 1; | |
107 | newval = integer_definition->value._unsigned; | |
108 | /* Test for overflow by comparing low bits */ | |
109 | if (newval < oldval) | |
110 | newval += 1ULL << integer_declaration->len; | |
111 | /* updateval contains old high bits, and new low bits (sum) */ | |
112 | updateval = stream->timestamp; | |
113 | updateval &= ~((1ULL << integer_declaration->len) - 1); | |
114 | updateval += newval; | |
115 | stream->timestamp = updateval; | |
116 | } | |
117 | ||
31262354 | 118 | static |
764af3f4 | 119 | int ctf_read_event(struct stream_pos *ppos, struct ctf_stream *stream) |
31262354 MD |
120 | { |
121 | struct ctf_stream_pos *pos = | |
122 | container_of(ppos, struct ctf_stream_pos, parent); | |
764af3f4 | 123 | struct ctf_stream_class *stream_class = stream->stream_class; |
42dc00b7 | 124 | struct ctf_stream_event *event; |
31262354 | 125 | uint64_t id = 0; |
31262354 MD |
126 | int ret; |
127 | ||
128 | if (pos->offset == EOF) | |
129 | return EOF; | |
130 | ||
131 | /* Read event header */ | |
e28d4618 | 132 | if (stream->stream_event_header) { |
a35173fe | 133 | struct definition_integer *integer_definition; |
ccdb988e | 134 | struct definition *variant; |
a35173fe | 135 | |
e28d4618 | 136 | ret = generic_rw(ppos, &stream->stream_event_header->p); |
31262354 MD |
137 | if (ret) |
138 | goto error; | |
139 | /* lookup event id */ | |
e28d4618 | 140 | integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
141 | if (integer_definition) { |
142 | id = integer_definition->value._unsigned; | |
143 | } else { | |
144 | struct definition_enum *enum_definition; | |
145 | ||
e28d4618 | 146 | enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
a35173fe MD |
147 | if (enum_definition) { |
148 | id = enum_definition->integer->value._unsigned; | |
149 | } | |
31262354 | 150 | } |
764af3f4 | 151 | |
e28d4618 | 152 | variant = lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e MD |
153 | if (variant) { |
154 | integer_definition = lookup_integer(variant, "id", FALSE); | |
155 | if (integer_definition) { | |
156 | id = integer_definition->value._unsigned; | |
157 | } | |
158 | } | |
159 | ||
764af3f4 | 160 | /* lookup timestamp */ |
5e2eb0ae | 161 | stream->has_timestamp = 0; |
e28d4618 | 162 | integer_definition = lookup_integer(&stream->stream_event_header->p, "timestamp", FALSE); |
a35173fe | 163 | if (integer_definition) { |
2b9a764d | 164 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 165 | stream->has_timestamp = 1; |
a35173fe | 166 | } else { |
ccdb988e MD |
167 | if (variant) { |
168 | integer_definition = lookup_integer(variant, "timestamp", FALSE); | |
a35173fe | 169 | if (integer_definition) { |
2b9a764d | 170 | ctf_update_timestamp(stream, integer_definition); |
5e2eb0ae | 171 | stream->has_timestamp = 1; |
a35173fe MD |
172 | } |
173 | } | |
764af3f4 | 174 | } |
31262354 MD |
175 | } |
176 | ||
177 | /* Read stream-declared event context */ | |
e28d4618 MD |
178 | if (stream->stream_event_context) { |
179 | ret = generic_rw(ppos, &stream->stream_event_context->p); | |
31262354 MD |
180 | if (ret) |
181 | goto error; | |
182 | } | |
183 | ||
184 | if (id >= stream_class->events_by_id->len) { | |
185 | fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id); | |
186 | return -EINVAL; | |
187 | } | |
e28d4618 MD |
188 | event = g_ptr_array_index(stream->events_by_id, id); |
189 | if (!event) { | |
31262354 MD |
190 | fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id); |
191 | return -EINVAL; | |
192 | } | |
193 | ||
194 | /* Read event-declared event context */ | |
e28d4618 MD |
195 | if (event->event_context) { |
196 | ret = generic_rw(ppos, &event->event_context->p); | |
31262354 MD |
197 | if (ret) |
198 | goto error; | |
199 | } | |
200 | ||
201 | /* Read event payload */ | |
e28d4618 MD |
202 | if (event->event_fields) { |
203 | ret = generic_rw(ppos, &event->event_fields->p); | |
31262354 MD |
204 | if (ret) |
205 | goto error; | |
206 | } | |
207 | ||
208 | return 0; | |
209 | ||
210 | error: | |
211 | fprintf(stdout, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); | |
212 | return ret; | |
213 | } | |
214 | ||
215 | static | |
764af3f4 | 216 | int ctf_write_event(struct stream_pos *pos, struct ctf_stream *stream) |
31262354 | 217 | { |
764af3f4 | 218 | struct ctf_stream_class *stream_class = stream->stream_class; |
42dc00b7 | 219 | struct ctf_stream_event *event; |
31262354 | 220 | uint64_t id = 0; |
31262354 MD |
221 | int ret; |
222 | ||
223 | /* print event header */ | |
e28d4618 | 224 | if (stream->stream_event_header) { |
ccdb988e MD |
225 | struct definition_integer *integer_definition; |
226 | struct definition *variant; | |
227 | ||
31262354 | 228 | /* lookup event id */ |
e28d4618 | 229 | integer_definition = lookup_integer(&stream->stream_event_header->p, "id", FALSE); |
ccdb988e MD |
230 | if (integer_definition) { |
231 | id = integer_definition->value._unsigned; | |
232 | } else { | |
233 | struct definition_enum *enum_definition; | |
234 | ||
e28d4618 | 235 | enum_definition = lookup_enum(&stream->stream_event_header->p, "id", FALSE); |
ccdb988e MD |
236 | if (enum_definition) { |
237 | id = enum_definition->integer->value._unsigned; | |
238 | } | |
239 | } | |
240 | ||
e28d4618 | 241 | variant = lookup_variant(&stream->stream_event_header->p, "v"); |
ccdb988e MD |
242 | if (variant) { |
243 | integer_definition = lookup_integer(variant, "id", FALSE); | |
244 | if (integer_definition) { | |
245 | id = integer_definition->value._unsigned; | |
246 | } | |
31262354 MD |
247 | } |
248 | ||
e28d4618 | 249 | ret = generic_rw(pos, &stream->stream_event_header->p); |
31262354 MD |
250 | if (ret) |
251 | goto error; | |
252 | } | |
253 | ||
254 | /* print stream-declared event context */ | |
e28d4618 MD |
255 | if (stream->stream_event_context) { |
256 | ret = generic_rw(pos, &stream->stream_event_context->p); | |
31262354 MD |
257 | if (ret) |
258 | goto error; | |
259 | } | |
260 | ||
261 | if (id >= stream_class->events_by_id->len) { | |
262 | fprintf(stdout, "[error] Event id %" PRIu64 " is outside range.\n", id); | |
263 | return -EINVAL; | |
264 | } | |
e28d4618 MD |
265 | event = g_ptr_array_index(stream->events_by_id, id); |
266 | if (!event) { | |
31262354 MD |
267 | fprintf(stdout, "[error] Event id %" PRIu64 " is unknown.\n", id); |
268 | return -EINVAL; | |
269 | } | |
270 | ||
271 | /* print event-declared event context */ | |
e28d4618 MD |
272 | if (event->event_context) { |
273 | ret = generic_rw(pos, &event->event_context->p); | |
31262354 MD |
274 | if (ret) |
275 | goto error; | |
276 | } | |
277 | ||
278 | /* Read and print event payload */ | |
e28d4618 MD |
279 | if (event->event_fields) { |
280 | ret = generic_rw(pos, &event->event_fields->p); | |
31262354 MD |
281 | if (ret) |
282 | goto error; | |
283 | } | |
284 | ||
285 | return 0; | |
286 | ||
287 | error: | |
288 | fprintf(stdout, "[error] Unexpected end of stream. Either the trace data stream is corrupted or metadata description does not match data layout.\n"); | |
289 | return ret; | |
290 | } | |
291 | ||
8563e754 | 292 | void ctf_init_pos(struct ctf_stream_pos *pos, int fd, int open_flags) |
8c572eba MD |
293 | { |
294 | pos->fd = fd; | |
295 | pos->mmap_offset = 0; | |
296 | pos->packet_size = 0; | |
297 | pos->content_size = 0; | |
298 | pos->content_size_loc = NULL; | |
299 | pos->base = NULL; | |
300 | pos->offset = 0; | |
301 | pos->dummy = false; | |
8c572eba | 302 | pos->cur_index = 0; |
8563e754 MD |
303 | if (fd >= 0) |
304 | pos->packet_index = g_array_new(FALSE, TRUE, | |
305 | sizeof(struct packet_index)); | |
306 | else | |
307 | pos->packet_index = NULL; | |
8563e754 MD |
308 | switch (open_flags & O_ACCMODE) { |
309 | case O_RDONLY: | |
310 | pos->prot = PROT_READ; | |
311 | pos->flags = MAP_PRIVATE; | |
312 | pos->parent.rw_table = read_dispatch_table; | |
31262354 | 313 | pos->parent.event_cb = ctf_read_event; |
8563e754 | 314 | break; |
8563e754 MD |
315 | case O_RDWR: |
316 | pos->prot = PROT_WRITE; /* Write has priority */ | |
317 | pos->flags = MAP_SHARED; | |
318 | pos->parent.rw_table = write_dispatch_table; | |
31262354 | 319 | pos->parent.event_cb = ctf_write_event; |
8563e754 | 320 | if (fd >= 0) |
847bf71a | 321 | ctf_move_pos_slow(pos, 0, SEEK_SET); /* position for write */ |
8563e754 MD |
322 | break; |
323 | default: | |
324 | assert(0); | |
8c572eba MD |
325 | } |
326 | } | |
327 | ||
46322b33 | 328 | void ctf_fini_pos(struct ctf_stream_pos *pos) |
8c572eba MD |
329 | { |
330 | int ret; | |
331 | ||
332 | if (pos->prot == PROT_WRITE && pos->content_size_loc) | |
333 | *pos->content_size_loc = pos->offset; | |
334 | if (pos->base) { | |
335 | /* unmap old base */ | |
336 | ret = munmap(pos->base, pos->packet_size / CHAR_BIT); | |
337 | if (ret) { | |
46322b33 | 338 | fprintf(stdout, "[error] Unable to unmap old base: %s.\n", |
8c572eba MD |
339 | strerror(errno)); |
340 | assert(0); | |
341 | } | |
342 | } | |
343 | (void) g_array_free(pos->packet_index, TRUE); | |
344 | } | |
345 | ||
847bf71a | 346 | void ctf_move_pos_slow(struct ctf_stream_pos *pos, size_t offset, int whence) |
0f980a35 | 347 | { |
75cc2c35 MD |
348 | struct ctf_file_stream *file_stream = |
349 | container_of(pos, struct ctf_file_stream, pos); | |
0f980a35 | 350 | int ret; |
8c572eba MD |
351 | off_t off; |
352 | struct packet_index *index; | |
0f980a35 | 353 | |
8c572eba MD |
354 | if (pos->prot == PROT_WRITE && pos->content_size_loc) |
355 | *pos->content_size_loc = pos->offset; | |
0f980a35 MD |
356 | |
357 | if (pos->base) { | |
358 | /* unmap old base */ | |
8c572eba | 359 | ret = munmap(pos->base, pos->packet_size / CHAR_BIT); |
0f980a35 | 360 | if (ret) { |
46322b33 | 361 | fprintf(stdout, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
362 | strerror(errno)); |
363 | assert(0); | |
364 | } | |
847bf71a | 365 | pos->base = NULL; |
0f980a35 MD |
366 | } |
367 | ||
8c572eba | 368 | /* |
46322b33 | 369 | * The caller should never ask for ctf_move_pos across packets, |
8c572eba MD |
370 | * except to get exactly at the beginning of the next packet. |
371 | */ | |
372 | if (pos->prot == PROT_WRITE) { | |
989c73bc MD |
373 | switch (whence) { |
374 | case SEEK_CUR: | |
375 | /* The writer will add padding */ | |
376 | assert(pos->offset + offset == pos->packet_size); | |
8c572eba | 377 | pos->mmap_offset += WRITE_PACKET_LEN / CHAR_BIT; |
989c73bc MD |
378 | break; |
379 | case SEEK_SET: | |
380 | assert(offset == 0); /* only seek supported for now */ | |
381 | pos->cur_index = 0; | |
382 | break; | |
383 | default: | |
384 | assert(0); | |
385 | } | |
8c572eba MD |
386 | pos->content_size = -1U; /* Unknown at this point */ |
387 | pos->packet_size = WRITE_PACKET_LEN; | |
989c73bc MD |
388 | off = posix_fallocate(pos->fd, pos->mmap_offset, |
389 | pos->packet_size / CHAR_BIT); | |
8c572eba | 390 | assert(off >= 0); |
847bf71a | 391 | pos->offset = 0; |
8c572eba | 392 | } else { |
847bf71a MD |
393 | switch (whence) { |
394 | case SEEK_CUR: | |
395 | /* The reader will expect us to skip padding */ | |
396 | assert(pos->offset + offset == pos->content_size); | |
8c572eba | 397 | ++pos->cur_index; |
847bf71a MD |
398 | break; |
399 | case SEEK_SET: | |
400 | assert(offset == 0); /* only seek supported for now */ | |
401 | pos->cur_index = 0; | |
402 | break; | |
403 | default: | |
404 | assert(0); | |
405 | } | |
406 | if (pos->cur_index >= pos->packet_index->len) { | |
670977d3 | 407 | pos->offset = EOF; |
847bf71a MD |
408 | return; |
409 | } | |
8c572eba MD |
410 | index = &g_array_index(pos->packet_index, struct packet_index, |
411 | pos->cur_index); | |
412 | pos->mmap_offset = index->offset; | |
413 | ||
414 | /* Lookup context/packet size in index */ | |
2d0bea29 | 415 | file_stream->parent.timestamp = index->timestamp_begin; |
8c572eba MD |
416 | pos->content_size = index->content_size; |
417 | pos->packet_size = index->packet_size; | |
2b9a764d | 418 | if (index->data_offset < index->content_size) |
75cc2c35 | 419 | pos->offset = 0; /* will read headers */ |
2b9a764d MD |
420 | else { |
421 | pos->offset = EOF; | |
422 | return; | |
423 | } | |
8c572eba | 424 | } |
0f980a35 | 425 | /* map new base. Need mapping length from header. */ |
8c572eba MD |
426 | pos->base = mmap(NULL, pos->packet_size / CHAR_BIT, pos->prot, |
427 | pos->flags, pos->fd, pos->mmap_offset); | |
847bf71a MD |
428 | if (pos->base == MAP_FAILED) { |
429 | fprintf(stdout, "[error] mmap error %s.\n", | |
430 | strerror(errno)); | |
431 | assert(0); | |
432 | } | |
75cc2c35 MD |
433 | |
434 | /* update trace_packet_header and stream_packet_context */ | |
2d0bea29 | 435 | if (pos->prot != PROT_WRITE && file_stream->parent.trace_packet_header) { |
75cc2c35 | 436 | /* Read packet header */ |
2d0bea29 | 437 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
75cc2c35 MD |
438 | assert(!ret); |
439 | } | |
2d0bea29 | 440 | if (pos->prot != PROT_WRITE && file_stream->parent.stream_packet_context) { |
75cc2c35 | 441 | /* Read packet context */ |
2d0bea29 | 442 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
75cc2c35 MD |
443 | assert(!ret); |
444 | } | |
0f980a35 MD |
445 | } |
446 | ||
b4c19c1e MD |
447 | static |
448 | int packet_metadata(struct ctf_trace *td, FILE *fp) | |
449 | { | |
450 | uint32_t magic; | |
451 | size_t len; | |
452 | int ret = 0; | |
453 | ||
454 | len = fread(&magic, sizeof(magic), 1, fp); | |
a0fe7d97 | 455 | if (len != 1) { |
b4c19c1e MD |
456 | goto end; |
457 | } | |
458 | if (magic == TSDL_MAGIC) { | |
459 | ret = 1; | |
460 | td->byte_order = BYTE_ORDER; | |
461 | } else if (magic == GUINT32_SWAP_LE_BE(TSDL_MAGIC)) { | |
462 | ret = 1; | |
463 | td->byte_order = (BYTE_ORDER == BIG_ENDIAN) ? | |
464 | LITTLE_ENDIAN : BIG_ENDIAN; | |
465 | } | |
a0fe7d97 | 466 | CTF_TRACE_SET_FIELD(td, byte_order); |
b4c19c1e MD |
467 | end: |
468 | rewind(fp); | |
469 | return ret; | |
470 | } | |
471 | ||
472 | static | |
473 | int ctf_open_trace_metadata_packet_read(struct ctf_trace *td, FILE *in, | |
474 | FILE *out) | |
475 | { | |
476 | struct metadata_packet_header header; | |
a0fe7d97 | 477 | size_t readlen, writelen, toread; |
f8254867 | 478 | char buf[4096 + 1]; /* + 1 for debug-mode \0 */ |
b4c19c1e MD |
479 | int ret = 0; |
480 | ||
a91a962e | 481 | readlen = fread(&header, header_sizeof(header), 1, in); |
a0fe7d97 | 482 | if (readlen < 1) |
b4c19c1e MD |
483 | return -EINVAL; |
484 | ||
485 | if (td->byte_order != BYTE_ORDER) { | |
486 | header.magic = GUINT32_SWAP_LE_BE(header.magic); | |
487 | header.checksum = GUINT32_SWAP_LE_BE(header.checksum); | |
488 | header.content_size = GUINT32_SWAP_LE_BE(header.content_size); | |
489 | header.packet_size = GUINT32_SWAP_LE_BE(header.packet_size); | |
490 | } | |
491 | if (header.checksum) | |
492 | fprintf(stdout, "[warning] checksum verification not supported yet.\n"); | |
493 | if (header.compression_scheme) { | |
494 | fprintf(stdout, "[error] compression (%u) not supported yet.\n", | |
495 | header.compression_scheme); | |
496 | return -EINVAL; | |
497 | } | |
498 | if (header.encryption_scheme) { | |
499 | fprintf(stdout, "[error] encryption (%u) not supported yet.\n", | |
500 | header.encryption_scheme); | |
501 | return -EINVAL; | |
502 | } | |
503 | if (header.checksum_scheme) { | |
504 | fprintf(stdout, "[error] checksum (%u) not supported yet.\n", | |
505 | header.checksum_scheme); | |
506 | return -EINVAL; | |
507 | } | |
508 | if (!CTF_TRACE_FIELD_IS_SET(td, uuid)) { | |
509 | memcpy(td->uuid, header.uuid, sizeof(header.uuid)); | |
510 | CTF_TRACE_SET_FIELD(td, uuid); | |
511 | } else { | |
512 | if (uuid_compare(header.uuid, td->uuid)) | |
513 | return -EINVAL; | |
514 | } | |
515 | ||
255b2138 | 516 | toread = (header.content_size / CHAR_BIT) - header_sizeof(header); |
a0fe7d97 MD |
517 | |
518 | for (;;) { | |
f8254867 | 519 | readlen = fread(buf, sizeof(char), min(sizeof(buf) - 1, toread), in); |
b4c19c1e MD |
520 | if (ferror(in)) { |
521 | ret = -EINVAL; | |
522 | break; | |
523 | } | |
4152822b | 524 | if (babeltrace_debug) { |
f8254867 | 525 | buf[readlen] = '\0'; |
4152822b MD |
526 | fprintf(stdout, "[debug] metadata packet read: %s\n", |
527 | buf); | |
528 | } | |
529 | ||
b4c19c1e MD |
530 | writelen = fwrite(buf, sizeof(char), readlen, out); |
531 | if (writelen < readlen) { | |
532 | ret = -EIO; | |
533 | break; | |
534 | } | |
535 | if (ferror(out)) { | |
536 | ret = -EINVAL; | |
537 | break; | |
538 | } | |
a0fe7d97 MD |
539 | toread -= readlen; |
540 | if (!toread) { | |
7f4b5c4d | 541 | ret = 0; /* continue reading next packet */ |
a0fe7d97 MD |
542 | break; |
543 | } | |
b4c19c1e MD |
544 | } |
545 | return ret; | |
546 | } | |
547 | ||
548 | static | |
549 | int ctf_open_trace_metadata_stream_read(struct ctf_trace *td, FILE **fp, | |
550 | char **buf) | |
551 | { | |
552 | FILE *in, *out; | |
553 | size_t size; | |
554 | int ret; | |
555 | ||
556 | in = *fp; | |
c4f5487e MD |
557 | /* |
558 | * Using strlen on *buf instead of size of open_memstream | |
559 | * because its size includes garbage at the end (after final | |
560 | * \0). This is the allocated size, not the actual string size. | |
561 | */ | |
b4c19c1e MD |
562 | out = open_memstream(buf, &size); |
563 | if (out == NULL) | |
564 | return -errno; | |
565 | ||
566 | for (;;) { | |
567 | ret = ctf_open_trace_metadata_packet_read(td, in, out); | |
7f4b5c4d | 568 | if (ret) { |
b4c19c1e | 569 | break; |
7f4b5c4d MD |
570 | } |
571 | if (feof(in)) { | |
572 | ret = 0; | |
b4c19c1e MD |
573 | break; |
574 | } | |
575 | } | |
576 | fclose(out); /* flush the buffer */ | |
577 | fclose(in); | |
578 | /* open for reading */ | |
c4f5487e | 579 | *fp = fmemopen(*buf, strlen(*buf), "rb"); |
b4c19c1e MD |
580 | return 0; |
581 | } | |
582 | ||
65102a8c | 583 | static |
46322b33 | 584 | int ctf_open_trace_metadata_read(struct ctf_trace *td) |
65102a8c MD |
585 | { |
586 | struct ctf_scanner *scanner; | |
2d0bea29 | 587 | struct ctf_file_stream *metadata_stream; |
65102a8c | 588 | FILE *fp; |
b4c19c1e | 589 | char *buf = NULL; |
65102a8c MD |
590 | int ret = 0; |
591 | ||
2d0bea29 MD |
592 | metadata_stream = g_new0(struct ctf_file_stream, 1); |
593 | td->metadata = &metadata_stream->parent; | |
594 | metadata_stream->pos.fd = openat(td->dirfd, "metadata", O_RDONLY); | |
595 | if (metadata_stream->pos.fd < 0) { | |
65102a8c | 596 | fprintf(stdout, "Unable to open metadata.\n"); |
2d0bea29 | 597 | return metadata_stream->pos.fd; |
65102a8c MD |
598 | } |
599 | ||
600 | if (babeltrace_debug) | |
601 | yydebug = 1; | |
602 | ||
2d0bea29 | 603 | fp = fdopen(metadata_stream->pos.fd, "r"); |
65102a8c | 604 | if (!fp) { |
46322b33 | 605 | fprintf(stdout, "[error] Unable to open metadata stream.\n"); |
65102a8c MD |
606 | ret = -errno; |
607 | goto end_stream; | |
608 | } | |
609 | ||
b4c19c1e MD |
610 | if (packet_metadata(td, fp)) { |
611 | ret = ctf_open_trace_metadata_stream_read(td, &fp, &buf); | |
612 | if (ret) | |
613 | goto end_packet_read; | |
614 | } | |
615 | ||
65102a8c MD |
616 | scanner = ctf_scanner_alloc(fp); |
617 | if (!scanner) { | |
46322b33 | 618 | fprintf(stdout, "[error] Error allocating scanner\n"); |
65102a8c MD |
619 | ret = -ENOMEM; |
620 | goto end_scanner_alloc; | |
621 | } | |
622 | ret = ctf_scanner_append_ast(scanner); | |
623 | if (ret) { | |
46322b33 | 624 | fprintf(stdout, "[error] Error creating AST\n"); |
65102a8c MD |
625 | goto end; |
626 | } | |
627 | ||
628 | if (babeltrace_debug) { | |
629 | ret = ctf_visitor_print_xml(stdout, 0, &scanner->ast->root); | |
630 | if (ret) { | |
46322b33 | 631 | fprintf(stdout, "[error] Error visiting AST for XML output\n"); |
65102a8c MD |
632 | goto end; |
633 | } | |
634 | } | |
635 | ||
636 | ret = ctf_visitor_semantic_check(stdout, 0, &scanner->ast->root); | |
637 | if (ret) { | |
46322b33 | 638 | fprintf(stdout, "[error] Error in CTF semantic validation %d\n", ret); |
65102a8c MD |
639 | goto end; |
640 | } | |
641 | ret = ctf_visitor_construct_metadata(stdout, 0, &scanner->ast->root, | |
ac5c6ca0 | 642 | td, td->byte_order); |
65102a8c | 643 | if (ret) { |
46322b33 | 644 | fprintf(stdout, "[error] Error in CTF metadata constructor %d\n", ret); |
65102a8c MD |
645 | goto end; |
646 | } | |
647 | end: | |
648 | ctf_scanner_free(scanner); | |
649 | end_scanner_alloc: | |
b4c19c1e | 650 | end_packet_read: |
65102a8c | 651 | fclose(fp); |
b4c19c1e | 652 | free(buf); |
65102a8c | 653 | end_stream: |
2d0bea29 MD |
654 | close(metadata_stream->pos.fd); |
655 | if (ret) | |
656 | g_free(metadata_stream); | |
0f980a35 MD |
657 | return ret; |
658 | } | |
659 | ||
e28d4618 | 660 | static |
42dc00b7 MD |
661 | struct ctf_stream_event *create_event_definitions(struct ctf_trace *td, |
662 | struct ctf_stream *stream, | |
663 | struct ctf_event *event) | |
e28d4618 | 664 | { |
42dc00b7 | 665 | struct ctf_stream_event *stream_event = g_new0(struct ctf_stream_event, 1); |
e28d4618 MD |
666 | |
667 | if (event->context_decl) { | |
668 | struct definition *definition = | |
669 | event->context_decl->p.definition_new(&event->context_decl->p, | |
670 | stream->parent_def_scope, 0, 0, "event.context"); | |
671 | if (!definition) { | |
672 | goto error; | |
673 | } | |
42dc00b7 | 674 | stream_event->event_context = container_of(definition, |
e28d4618 | 675 | struct definition_struct, p); |
42dc00b7 | 676 | stream->parent_def_scope = stream_event->event_context->p.scope; |
e28d4618 MD |
677 | } |
678 | if (event->fields_decl) { | |
679 | struct definition *definition = | |
680 | event->fields_decl->p.definition_new(&event->fields_decl->p, | |
681 | stream->parent_def_scope, 0, 0, "event.fields"); | |
682 | if (!definition) { | |
683 | goto error; | |
684 | } | |
42dc00b7 | 685 | stream_event->event_fields = container_of(definition, |
e28d4618 | 686 | struct definition_struct, p); |
42dc00b7 | 687 | stream->parent_def_scope = stream_event->event_fields->p.scope; |
e28d4618 | 688 | } |
42dc00b7 | 689 | return stream_event; |
e28d4618 MD |
690 | |
691 | error: | |
42dc00b7 MD |
692 | if (stream_event->event_fields) |
693 | definition_unref(&stream_event->event_fields->p); | |
694 | if (stream_event->event_context) | |
695 | definition_unref(&stream_event->event_context->p); | |
e28d4618 MD |
696 | return NULL; |
697 | } | |
698 | ||
699 | static | |
700 | int create_stream_definitions(struct ctf_trace *td, struct ctf_stream *stream) | |
701 | { | |
702 | struct ctf_stream_class *stream_class; | |
703 | int ret; | |
704 | int i; | |
705 | ||
706 | if (stream->stream_definitions_created) | |
707 | return 0; | |
708 | ||
709 | stream_class = stream->stream_class; | |
710 | ||
711 | if (stream_class->packet_context_decl) { | |
712 | struct definition *definition = | |
713 | stream_class->packet_context_decl->p.definition_new(&stream_class->packet_context_decl->p, | |
714 | stream->parent_def_scope, 0, 0, "stream.packet.context"); | |
715 | if (!definition) { | |
716 | ret = -EINVAL; | |
717 | goto error; | |
718 | } | |
719 | stream->stream_packet_context = container_of(definition, | |
720 | struct definition_struct, p); | |
721 | stream->parent_def_scope = stream->stream_packet_context->p.scope; | |
722 | } | |
723 | if (stream_class->event_header_decl) { | |
724 | struct definition *definition = | |
725 | stream_class->event_header_decl->p.definition_new(&stream_class->event_header_decl->p, | |
726 | stream->parent_def_scope, 0, 0, "stream.event.header"); | |
727 | if (!definition) { | |
728 | ret = -EINVAL; | |
729 | goto error; | |
730 | } | |
731 | stream->stream_event_header = | |
732 | container_of(definition, struct definition_struct, p); | |
733 | stream->parent_def_scope = stream->stream_event_header->p.scope; | |
734 | } | |
735 | if (stream_class->event_context_decl) { | |
736 | struct definition *definition = | |
737 | stream_class->event_context_decl->p.definition_new(&stream_class->event_context_decl->p, | |
738 | stream->parent_def_scope, 0, 0, "stream.event.context"); | |
739 | if (!definition) { | |
740 | ret = -EINVAL; | |
741 | goto error; | |
742 | } | |
743 | stream->stream_event_context = | |
744 | container_of(definition, struct definition_struct, p); | |
745 | stream->parent_def_scope = stream->stream_event_context->p.scope; | |
746 | } | |
747 | stream->events_by_id = g_ptr_array_new(); | |
748 | g_ptr_array_set_size(stream->events_by_id, stream_class->events_by_id->len); | |
749 | for (i = 0; i < stream->events_by_id->len; i++) { | |
750 | struct ctf_event *event = g_ptr_array_index(stream_class->events_by_id, i); | |
42dc00b7 | 751 | struct ctf_stream_event *stream_event; |
e28d4618 MD |
752 | |
753 | if (!event) | |
754 | continue; | |
42dc00b7 MD |
755 | stream_event = create_event_definitions(td, stream, event); |
756 | if (!stream_event) | |
e28d4618 | 757 | goto error_event; |
42dc00b7 | 758 | g_ptr_array_index(stream->events_by_id, i) = stream_event; |
e28d4618 MD |
759 | } |
760 | return 0; | |
761 | ||
762 | error_event: | |
763 | for (i = 0; i < stream->events_by_id->len; i++) { | |
42dc00b7 MD |
764 | struct ctf_stream_event *stream_event = g_ptr_array_index(stream->events_by_id, i); |
765 | if (stream_event) | |
766 | g_free(stream_event); | |
e28d4618 MD |
767 | } |
768 | g_ptr_array_free(stream->events_by_id, TRUE); | |
769 | error: | |
770 | if (stream->stream_event_context) | |
771 | definition_unref(&stream->stream_event_context->p); | |
772 | if (stream->stream_event_header) | |
773 | definition_unref(&stream->stream_event_header->p); | |
774 | if (stream->stream_packet_context) | |
775 | definition_unref(&stream->stream_packet_context->p); | |
776 | return ret; | |
777 | } | |
778 | ||
0f980a35 MD |
779 | |
780 | static | |
46322b33 | 781 | int create_stream_packet_index(struct ctf_trace *td, |
0f980a35 MD |
782 | struct ctf_file_stream *file_stream) |
783 | { | |
aa6bffae | 784 | struct ctf_stream_class *stream; |
0f980a35 | 785 | int len_index; |
46322b33 | 786 | struct ctf_stream_pos *pos; |
0f980a35 MD |
787 | struct stat filestats; |
788 | struct packet_index packet_index; | |
789 | int first_packet = 1; | |
790 | int ret; | |
791 | ||
792 | pos = &file_stream->pos; | |
793 | ||
794 | ret = fstat(pos->fd, &filestats); | |
795 | if (ret < 0) | |
796 | return ret; | |
797 | ||
8895362d MD |
798 | if (filestats.st_size < MAX_PACKET_HEADER_LEN / CHAR_BIT) |
799 | return -EINVAL; | |
800 | ||
0f980a35 MD |
801 | for (pos->mmap_offset = 0; pos->mmap_offset < filestats.st_size; ) { |
802 | uint64_t stream_id = 0; | |
803 | ||
804 | if (pos->base) { | |
805 | /* unmap old base */ | |
8c572eba | 806 | ret = munmap(pos->base, pos->packet_size / CHAR_BIT); |
0f980a35 | 807 | if (ret) { |
46322b33 | 808 | fprintf(stdout, "[error] Unable to unmap old base: %s.\n", |
0f980a35 MD |
809 | strerror(errno)); |
810 | return ret; | |
811 | } | |
8c572eba | 812 | pos->base = NULL; |
0f980a35 MD |
813 | } |
814 | /* map new base. Need mapping length from header. */ | |
8c572eba | 815 | pos->base = mmap(NULL, MAX_PACKET_HEADER_LEN / CHAR_BIT, PROT_READ, |
0f980a35 | 816 | MAP_PRIVATE, pos->fd, pos->mmap_offset); |
dc48ecad MD |
817 | pos->content_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */ |
818 | pos->packet_size = MAX_PACKET_HEADER_LEN; /* Unknown at this point */ | |
0f980a35 MD |
819 | pos->offset = 0; /* Position of the packet header */ |
820 | ||
8c572eba MD |
821 | packet_index.offset = pos->mmap_offset; |
822 | packet_index.content_size = 0; | |
823 | packet_index.packet_size = 0; | |
75cc2c35 MD |
824 | packet_index.timestamp_begin = 0; |
825 | packet_index.timestamp_end = 0; | |
8c572eba | 826 | |
0f980a35 | 827 | /* read and check header, set stream id (and check) */ |
2d0bea29 | 828 | if (file_stream->parent.trace_packet_header) { |
0f980a35 | 829 | /* Read packet header */ |
2d0bea29 | 830 | ret = generic_rw(&pos->parent, &file_stream->parent.trace_packet_header->p); |
c5e74408 MD |
831 | if (ret) |
832 | return ret; | |
2d0bea29 | 833 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("magic")); |
0f980a35 MD |
834 | if (len_index >= 0) { |
835 | struct definition_integer *defint; | |
b1a2f580 | 836 | struct definition *field; |
0f980a35 | 837 | |
2d0bea29 | 838 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
b1a2f580 MD |
839 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
840 | defint = container_of(field, struct definition_integer, p); | |
0f980a35 MD |
841 | assert(defint->declaration->signedness == FALSE); |
842 | if (defint->value._unsigned != CTF_MAGIC) { | |
d8ea2d29 | 843 | fprintf(stdout, "[error] Invalid magic number 0x%" PRIX64 " at packet %u (file offset %zd).\n", |
8c572eba MD |
844 | defint->value._unsigned, |
845 | file_stream->pos.packet_index->len, | |
846 | (ssize_t) pos->mmap_offset); | |
0f980a35 MD |
847 | return -EINVAL; |
848 | } | |
849 | } | |
850 | ||
851 | /* check uuid */ | |
2d0bea29 | 852 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("uuid")); |
0f980a35 MD |
853 | if (len_index >= 0) { |
854 | struct definition_array *defarray; | |
b1a2f580 | 855 | struct definition *field; |
0f980a35 MD |
856 | uint64_t i; |
857 | uint8_t uuidval[UUID_LEN]; | |
858 | ||
2d0bea29 | 859 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
b1a2f580 MD |
860 | assert(field->declaration->id == CTF_TYPE_ARRAY); |
861 | defarray = container_of(field, struct definition_array, p); | |
3838df27 | 862 | assert(array_len(defarray) == UUID_LEN); |
0f980a35 MD |
863 | assert(defarray->declaration->elem->id == CTF_TYPE_INTEGER); |
864 | ||
865 | for (i = 0; i < UUID_LEN; i++) { | |
866 | struct definition *elem; | |
867 | struct definition_integer *defint; | |
868 | ||
869 | elem = array_index(defarray, i); | |
870 | assert(elem); | |
871 | defint = container_of(elem, struct definition_integer, p); | |
872 | uuidval[i] = defint->value._unsigned; | |
873 | } | |
46322b33 | 874 | ret = uuid_compare(td->uuid, uuidval); |
0f980a35 MD |
875 | if (ret) { |
876 | fprintf(stdout, "[error] Unique Universal Identifiers do not match.\n"); | |
877 | return -EINVAL; | |
878 | } | |
879 | } | |
880 | ||
881 | ||
2d0bea29 | 882 | len_index = struct_declaration_lookup_field_index(file_stream->parent.trace_packet_header->declaration, g_quark_from_static_string("stream_id")); |
0f980a35 MD |
883 | if (len_index >= 0) { |
884 | struct definition_integer *defint; | |
b1a2f580 | 885 | struct definition *field; |
0f980a35 | 886 | |
2d0bea29 | 887 | field = struct_definition_get_field_from_index(file_stream->parent.trace_packet_header, len_index); |
b1a2f580 MD |
888 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
889 | defint = container_of(field, struct definition_integer, p); | |
0f980a35 MD |
890 | assert(defint->declaration->signedness == FALSE); |
891 | stream_id = defint->value._unsigned; | |
892 | } | |
893 | } | |
894 | ||
2d0bea29 | 895 | if (!first_packet && file_stream->parent.stream_id != stream_id) { |
0f980a35 MD |
896 | fprintf(stdout, "[error] Stream ID is changing within a stream.\n"); |
897 | return -EINVAL; | |
898 | } | |
899 | if (first_packet) { | |
2d0bea29 | 900 | file_stream->parent.stream_id = stream_id; |
46322b33 | 901 | if (stream_id >= td->streams->len) { |
0f980a35 MD |
902 | fprintf(stdout, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); |
903 | return -EINVAL; | |
904 | } | |
46322b33 | 905 | stream = g_ptr_array_index(td->streams, stream_id); |
0f980a35 MD |
906 | if (!stream) { |
907 | fprintf(stdout, "[error] Stream %" PRIu64 " is not declared in metadata.\n", stream_id); | |
908 | return -EINVAL; | |
909 | } | |
2d0bea29 | 910 | file_stream->parent.stream_class = stream; |
01c76b24 | 911 | ret = create_stream_definitions(td, &file_stream->parent); |
862434ec MD |
912 | if (ret) |
913 | return ret; | |
0f980a35 MD |
914 | } |
915 | first_packet = 0; | |
916 | ||
2d0bea29 | 917 | if (file_stream->parent.stream_packet_context) { |
dc48ecad | 918 | /* Read packet context */ |
2d0bea29 | 919 | ret = generic_rw(&pos->parent, &file_stream->parent.stream_packet_context->p); |
c5e74408 MD |
920 | if (ret) |
921 | return ret; | |
dc48ecad | 922 | /* read content size from header */ |
2d0bea29 | 923 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("content_size")); |
dc48ecad MD |
924 | if (len_index >= 0) { |
925 | struct definition_integer *defint; | |
b1a2f580 | 926 | struct definition *field; |
dc48ecad | 927 | |
2d0bea29 | 928 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
b1a2f580 MD |
929 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
930 | defint = container_of(field, struct definition_integer, p); | |
dc48ecad | 931 | assert(defint->declaration->signedness == FALSE); |
8c572eba | 932 | packet_index.content_size = defint->value._unsigned; |
dc48ecad MD |
933 | } else { |
934 | /* Use file size for packet size */ | |
8c572eba | 935 | packet_index.content_size = filestats.st_size * CHAR_BIT; |
dc48ecad MD |
936 | } |
937 | ||
938 | /* read packet size from header */ | |
2d0bea29 | 939 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("packet_size")); |
dc48ecad MD |
940 | if (len_index >= 0) { |
941 | struct definition_integer *defint; | |
b1a2f580 | 942 | struct definition *field; |
dc48ecad | 943 | |
2d0bea29 | 944 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
b1a2f580 MD |
945 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
946 | defint = container_of(field, struct definition_integer, p); | |
dc48ecad | 947 | assert(defint->declaration->signedness == FALSE); |
8c572eba | 948 | packet_index.packet_size = defint->value._unsigned; |
dc48ecad MD |
949 | } else { |
950 | /* Use content size if non-zero, else file size */ | |
8c572eba | 951 | packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT; |
dc48ecad | 952 | } |
75cc2c35 MD |
953 | |
954 | /* read timestamp begin from header */ | |
2d0bea29 | 955 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_begin")); |
75cc2c35 MD |
956 | if (len_index >= 0) { |
957 | struct definition_integer *defint; | |
958 | struct definition *field; | |
959 | ||
2d0bea29 | 960 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
75cc2c35 MD |
961 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
962 | defint = container_of(field, struct definition_integer, p); | |
963 | assert(defint->declaration->signedness == FALSE); | |
964 | packet_index.timestamp_begin = defint->value._unsigned; | |
965 | } | |
966 | ||
967 | /* read timestamp end from header */ | |
2d0bea29 | 968 | len_index = struct_declaration_lookup_field_index(file_stream->parent.stream_packet_context->declaration, g_quark_from_static_string("timestamp_end")); |
75cc2c35 MD |
969 | if (len_index >= 0) { |
970 | struct definition_integer *defint; | |
971 | struct definition *field; | |
972 | ||
2d0bea29 | 973 | field = struct_definition_get_field_from_index(file_stream->parent.stream_packet_context, len_index); |
75cc2c35 MD |
974 | assert(field->declaration->id == CTF_TYPE_INTEGER); |
975 | defint = container_of(field, struct definition_integer, p); | |
976 | assert(defint->declaration->signedness == FALSE); | |
977 | packet_index.timestamp_end = defint->value._unsigned; | |
978 | } | |
0f980a35 MD |
979 | } else { |
980 | /* Use file size for packet size */ | |
8c572eba | 981 | packet_index.content_size = filestats.st_size * CHAR_BIT; |
0f980a35 | 982 | /* Use content size if non-zero, else file size */ |
8c572eba | 983 | packet_index.packet_size = packet_index.content_size ? : filestats.st_size * CHAR_BIT; |
0f980a35 | 984 | } |
546293fa MD |
985 | |
986 | /* Validate content size and packet size values */ | |
987 | if (packet_index.content_size > packet_index.packet_size) { | |
988 | fprintf(stdout, "[error] Content size (%zu bits) is larger than packet size (%zu bits).\n", | |
989 | packet_index.content_size, packet_index.packet_size); | |
990 | return -EINVAL; | |
991 | } | |
992 | ||
58b0b883 MD |
993 | if (packet_index.packet_size > (filestats.st_size - packet_index.offset) * CHAR_BIT) { |
994 | fprintf(stdout, "[error] Packet size (%zu bits) is larger than remaining file size (%zu bits).\n", | |
5aebb2ee | 995 | packet_index.content_size, (size_t) (filestats.st_size - packet_index.offset) * CHAR_BIT); |
546293fa MD |
996 | return -EINVAL; |
997 | } | |
998 | ||
847bf71a MD |
999 | /* Save position after header and context */ |
1000 | packet_index.data_offset = pos->offset; | |
0f980a35 | 1001 | |
0f980a35 MD |
1002 | /* add index to packet array */ |
1003 | g_array_append_val(file_stream->pos.packet_index, packet_index); | |
1004 | ||
8c572eba | 1005 | pos->mmap_offset += packet_index.packet_size / CHAR_BIT; |
0f980a35 MD |
1006 | } |
1007 | ||
847bf71a MD |
1008 | /* Move pos back to beginning of file */ |
1009 | ctf_move_pos_slow(pos, 0, SEEK_SET); /* position for write */ | |
1010 | ||
0f980a35 MD |
1011 | return 0; |
1012 | } | |
1013 | ||
e28d4618 MD |
1014 | static |
1015 | int create_trace_definitions(struct ctf_trace *td, struct ctf_stream *stream) | |
1016 | { | |
1017 | int ret; | |
1018 | ||
1019 | if (td->packet_header_decl) { | |
1020 | struct definition *definition = | |
1021 | td->packet_header_decl->p.definition_new(&td->packet_header_decl->p, | |
1022 | stream->parent_def_scope, 0, 0, "trace.packet.header"); | |
1023 | if (!definition) { | |
1024 | ret = -EINVAL; | |
1025 | goto error; | |
1026 | } | |
1027 | stream->trace_packet_header = | |
1028 | container_of(definition, struct definition_struct, p); | |
1029 | stream->parent_def_scope = stream->trace_packet_header->p.scope; | |
1030 | } | |
1031 | ||
1032 | return 0; | |
1033 | ||
1034 | error: | |
1035 | return ret; | |
1036 | } | |
1037 | ||
0f980a35 MD |
1038 | /* |
1039 | * Note: many file streams can inherit from the same stream class | |
1040 | * description (metadata). | |
1041 | */ | |
1042 | static | |
46322b33 | 1043 | int ctf_open_file_stream_read(struct ctf_trace *td, const char *path, int flags) |
0f980a35 MD |
1044 | { |
1045 | int ret; | |
1046 | struct ctf_file_stream *file_stream; | |
1047 | ||
46322b33 | 1048 | ret = openat(td->dirfd, path, flags); |
0f980a35 MD |
1049 | if (ret < 0) |
1050 | goto error; | |
1051 | file_stream = g_new0(struct ctf_file_stream, 1); | |
8563e754 | 1052 | ctf_init_pos(&file_stream->pos, ret, flags); |
2d0bea29 | 1053 | ret = create_trace_definitions(td, &file_stream->parent); |
e28d4618 MD |
1054 | if (ret) |
1055 | goto error_def; | |
0f980a35 MD |
1056 | ret = create_stream_packet_index(td, file_stream); |
1057 | if (ret) | |
1058 | goto error_index; | |
1059 | /* Add stream file to stream class */ | |
2d0bea29 MD |
1060 | g_ptr_array_add(file_stream->parent.stream_class->streams, |
1061 | &file_stream->parent); | |
0f980a35 MD |
1062 | return 0; |
1063 | ||
1064 | error_index: | |
2d0bea29 MD |
1065 | if (file_stream->parent.trace_packet_header) |
1066 | definition_unref(&file_stream->parent.trace_packet_header->p); | |
e28d4618 | 1067 | error_def: |
46322b33 | 1068 | ctf_fini_pos(&file_stream->pos); |
0f980a35 MD |
1069 | close(file_stream->pos.fd); |
1070 | g_free(file_stream); | |
1071 | error: | |
65102a8c MD |
1072 | return ret; |
1073 | } | |
1074 | ||
bbefb8dd | 1075 | static |
46322b33 | 1076 | int ctf_open_trace_read(struct ctf_trace *td, const char *path, int flags) |
bbefb8dd MD |
1077 | { |
1078 | int ret; | |
65102a8c MD |
1079 | struct dirent *dirent; |
1080 | struct dirent *diriter; | |
1081 | size_t dirent_len; | |
bbefb8dd | 1082 | |
46322b33 | 1083 | td->flags = flags; |
bbefb8dd MD |
1084 | |
1085 | /* Open trace directory */ | |
46322b33 MD |
1086 | td->dir = opendir(path); |
1087 | if (!td->dir) { | |
dc48ecad | 1088 | fprintf(stdout, "[error] Unable to open trace directory.\n"); |
bbefb8dd MD |
1089 | ret = -ENOENT; |
1090 | goto error; | |
1091 | } | |
1092 | ||
46322b33 MD |
1093 | td->dirfd = open(path, 0); |
1094 | if (td->dirfd < 0) { | |
dc48ecad | 1095 | fprintf(stdout, "[error] Unable to open trace directory file descriptor.\n"); |
65102a8c MD |
1096 | ret = -ENOENT; |
1097 | goto error_dirfd; | |
1098 | } | |
0f980a35 | 1099 | |
65102a8c MD |
1100 | /* |
1101 | * Keep the metadata file separate. | |
1102 | */ | |
bbefb8dd | 1103 | |
65102a8c MD |
1104 | ret = ctf_open_trace_metadata_read(td); |
1105 | if (ret) { | |
1106 | goto error_metadata; | |
1107 | } | |
bbefb8dd MD |
1108 | |
1109 | /* | |
1110 | * Open each stream: for each file, try to open, check magic | |
1111 | * number, and get the stream ID to add to the right location in | |
1112 | * the stream array. | |
bbefb8dd MD |
1113 | */ |
1114 | ||
65102a8c | 1115 | dirent_len = offsetof(struct dirent, d_name) + |
46322b33 | 1116 | fpathconf(td->dirfd, _PC_NAME_MAX) + 1; |
bbefb8dd | 1117 | |
65102a8c | 1118 | dirent = malloc(dirent_len); |
bbefb8dd | 1119 | |
65102a8c | 1120 | for (;;) { |
46322b33 | 1121 | ret = readdir_r(td->dir, dirent, &diriter); |
65102a8c | 1122 | if (ret) { |
dc48ecad | 1123 | fprintf(stdout, "[error] Readdir error.\n"); |
65102a8c | 1124 | goto readdir_error; |
65102a8c MD |
1125 | } |
1126 | if (!diriter) | |
1127 | break; | |
d8ea2d29 MD |
1128 | /* Ignore hidden files, ., .. and metadata. */ |
1129 | if (!strncmp(diriter->d_name, ".", 1) | |
65102a8c MD |
1130 | || !strcmp(diriter->d_name, "..") |
1131 | || !strcmp(diriter->d_name, "metadata")) | |
1132 | continue; | |
dc48ecad MD |
1133 | ret = ctf_open_file_stream_read(td, diriter->d_name, flags); |
1134 | if (ret) { | |
1135 | fprintf(stdout, "[error] Open file stream error.\n"); | |
1136 | goto readdir_error; | |
1137 | } | |
65102a8c | 1138 | } |
bbefb8dd | 1139 | |
65102a8c | 1140 | free(dirent); |
bbefb8dd | 1141 | return 0; |
65102a8c MD |
1142 | |
1143 | readdir_error: | |
1144 | free(dirent); | |
1145 | error_metadata: | |
46322b33 | 1146 | close(td->dirfd); |
65102a8c | 1147 | error_dirfd: |
46322b33 | 1148 | closedir(td->dir); |
bbefb8dd MD |
1149 | error: |
1150 | return ret; | |
1151 | } | |
1152 | ||
e9378815 | 1153 | static |
bbefb8dd MD |
1154 | struct trace_descriptor *ctf_open_trace(const char *path, int flags) |
1155 | { | |
46322b33 | 1156 | struct ctf_trace *td; |
bbefb8dd MD |
1157 | int ret; |
1158 | ||
46322b33 | 1159 | td = g_new0(struct ctf_trace, 1); |
bbefb8dd | 1160 | |
8c572eba | 1161 | switch (flags & O_ACCMODE) { |
bbefb8dd | 1162 | case O_RDONLY: |
b61922b5 MD |
1163 | if (!path) { |
1164 | fprintf(stdout, "[error] Path missing for input CTF trace.\n"); | |
1165 | goto error; | |
1166 | } | |
bbefb8dd MD |
1167 | ret = ctf_open_trace_read(td, path, flags); |
1168 | if (ret) | |
1169 | goto error; | |
1170 | break; | |
989c73bc | 1171 | case O_RDWR: |
46322b33 MD |
1172 | fprintf(stdout, "[error] Opening CTF traces for output is not supported yet.\n"); |
1173 | goto error; | |
bbefb8dd | 1174 | default: |
46322b33 | 1175 | fprintf(stdout, "[error] Incorrect open flags.\n"); |
bbefb8dd MD |
1176 | goto error; |
1177 | } | |
1178 | ||
46322b33 | 1179 | return &td->parent; |
bbefb8dd MD |
1180 | error: |
1181 | g_free(td); | |
1182 | return NULL; | |
1183 | } | |
1184 | ||
0f980a35 MD |
1185 | static |
1186 | void ctf_close_file_stream(struct ctf_file_stream *file_stream) | |
1187 | { | |
46322b33 | 1188 | ctf_fini_pos(&file_stream->pos); |
0f980a35 MD |
1189 | close(file_stream->pos.fd); |
1190 | } | |
1191 | ||
e9378815 | 1192 | static |
46322b33 | 1193 | void ctf_close_trace(struct trace_descriptor *tdp) |
bbefb8dd | 1194 | { |
46322b33 | 1195 | struct ctf_trace *td = container_of(tdp, struct ctf_trace, parent); |
0f980a35 MD |
1196 | int i; |
1197 | ||
46322b33 MD |
1198 | if (td->streams) { |
1199 | for (i = 0; i < td->streams->len; i++) { | |
aa6bffae | 1200 | struct ctf_stream_class *stream; |
0f980a35 | 1201 | int j; |
e9378815 | 1202 | |
46322b33 | 1203 | stream = g_ptr_array_index(td->streams, i); |
e9378815 MD |
1204 | if (!stream) |
1205 | continue; | |
2d0bea29 | 1206 | for (j = 0; j < stream->streams->len; j++) { |
0f980a35 | 1207 | struct ctf_file_stream *file_stream; |
2d0bea29 | 1208 | file_stream = container_of(g_ptr_array_index(stream->streams, j), struct ctf_file_stream, parent); |
0f980a35 MD |
1209 | ctf_close_file_stream(file_stream); |
1210 | } | |
1211 | ||
1212 | } | |
46322b33 | 1213 | g_ptr_array_free(td->streams, TRUE); |
0f980a35 | 1214 | } |
46322b33 | 1215 | closedir(td->dir); |
bbefb8dd MD |
1216 | g_free(td); |
1217 | } | |
1218 | ||
7fb21036 | 1219 | void __attribute__((constructor)) ctf_init(void) |
fc93b2bd MD |
1220 | { |
1221 | int ret; | |
1222 | ||
4c8bfb7e | 1223 | ctf_format.name = g_quark_from_static_string("ctf"); |
fc93b2bd MD |
1224 | ret = bt_register_format(&ctf_format); |
1225 | assert(!ret); | |
1226 | } | |
698f0fe4 MD |
1227 | |
1228 | /* TODO: finalize */ |