Commit | Line | Data |
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e98a2d6e | 1 | /* |
0235b0db | 2 | * SPDX-License-Identifier: MIT |
e98a2d6e | 3 | * |
0235b0db MJ |
4 | * Copyright 2016-2017 Philippe Proulx <pproulx@efficios.com> |
5 | * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation | |
e98a2d6e PP |
7 | */ |
8 | ||
2e42d046 SM |
9 | #define BT_COMP_LOG_SELF_COMP (self_comp) |
10 | #define BT_LOG_OUTPUT_LEVEL (log_level) | |
98903a3e | 11 | #define BT_LOG_TAG "PLUGIN/SRC.CTF.FS/DS" |
d9c39b0a | 12 | #include "logging/comp-logging.h" |
98903a3e | 13 | |
0fbb9a9f | 14 | #include <stdlib.h> |
e98a2d6e PP |
15 | #include <stdio.h> |
16 | #include <stdint.h> | |
17 | #include <stdlib.h> | |
e98a2d6e PP |
18 | #include <glib.h> |
19 | #include <inttypes.h> | |
578e048b MJ |
20 | #include "compat/mman.h" |
21 | #include "compat/endian.h" | |
3fadfbc0 | 22 | #include <babeltrace2/babeltrace.h> |
578e048b | 23 | #include "common/common.h" |
78586d8a JG |
24 | #include "file.h" |
25 | #include "metadata.h" | |
d6e69534 | 26 | #include "../common/msg-iter/msg-iter.h" |
578e048b | 27 | #include "common/assert.h" |
94cf822e | 28 | #include "data-stream-file.h" |
e9383dfd | 29 | #include <string.h> |
e98a2d6e | 30 | |
4f1f88a6 | 31 | static inline |
94cf822e | 32 | size_t remaining_mmap_bytes(struct ctf_fs_ds_file *ds_file) |
e98a2d6e | 33 | { |
e9bfbfe0 SM |
34 | BT_ASSERT_DBG(ds_file->mmap_len >= ds_file->request_offset_in_mapping); |
35 | return ds_file->mmap_len - ds_file->request_offset_in_mapping; | |
e98a2d6e PP |
36 | } |
37 | ||
127e2341 SM |
38 | /* |
39 | * Return true if `offset_in_file` is in the current mapping. | |
40 | */ | |
41 | ||
42 | static | |
43 | bool offset_ist_mapped(struct ctf_fs_ds_file *ds_file, off_t offset_in_file) | |
44 | { | |
45 | return offset_in_file >= ds_file->mmap_offset_in_file && | |
46 | offset_in_file < (ds_file->mmap_offset_in_file + ds_file->mmap_len); | |
47 | } | |
48 | ||
5b29e799 | 49 | static |
887a9995 SM |
50 | enum ctf_msg_iter_medium_status ds_file_munmap( |
51 | struct ctf_fs_ds_file *ds_file) | |
e98a2d6e | 52 | { |
887a9995 | 53 | enum ctf_msg_iter_medium_status status; |
2e42d046 SM |
54 | bt_self_component *self_comp = ds_file->self_comp; |
55 | bt_logging_level log_level = ds_file->log_level; | |
e98a2d6e | 56 | |
9f5571db SM |
57 | BT_ASSERT(ds_file); |
58 | ||
59 | if (!ds_file->mmap_addr) { | |
887a9995 | 60 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; |
94cf822e PP |
61 | goto end; |
62 | } | |
63 | ||
04394229 | 64 | if (bt_munmap(ds_file->mmap_addr, ds_file->mmap_len)) { |
4c65a157 | 65 | BT_COMP_LOGE_ERRNO("Cannot memory-unmap file", |
cd232764 | 66 | ": address=%p, size=%zu, file_path=\"%s\", file=%p", |
94cf822e | 67 | ds_file->mmap_addr, ds_file->mmap_len, |
9e0c8dbb | 68 | ds_file->file ? ds_file->file->path->str : "NULL", |
cd232764 | 69 | ds_file->file ? ds_file->file->fp : NULL); |
887a9995 | 70 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
fc9a526c | 71 | goto end; |
e98a2d6e | 72 | } |
94cf822e PP |
73 | |
74 | ds_file->mmap_addr = NULL; | |
75 | ||
887a9995 | 76 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; |
fc9a526c | 77 | end: |
887a9995 | 78 | return status; |
e98a2d6e PP |
79 | } |
80 | ||
127e2341 SM |
81 | /* |
82 | * mmap a region of `ds_file` such that `requested_offset_in_file` is in the | |
83 | * mapping. If the currently mmap-ed region already contains | |
84 | * `requested_offset_in_file`, the mapping is kept. | |
85 | * | |
f6e68e70 SM |
86 | * Set `ds_file->requested_offset_in_mapping` based on `request_offset_in_file`, |
87 | * such that the next call to `request_bytes` will return bytes starting at that | |
88 | * position. | |
127e2341 SM |
89 | * |
90 | * `requested_offset_in_file` must be a valid offset in the file. | |
91 | */ | |
5b29e799 | 92 | static |
127e2341 SM |
93 | enum ctf_msg_iter_medium_status ds_file_mmap( |
94 | struct ctf_fs_ds_file *ds_file, off_t requested_offset_in_file) | |
e98a2d6e | 95 | { |
887a9995 | 96 | enum ctf_msg_iter_medium_status status; |
2e42d046 SM |
97 | bt_self_component *self_comp = ds_file->self_comp; |
98 | bt_logging_level log_level = ds_file->log_level; | |
e98a2d6e | 99 | |
127e2341 SM |
100 | /* Ensure the requested offset is in the file range. */ |
101 | BT_ASSERT(requested_offset_in_file >= 0); | |
102 | BT_ASSERT(requested_offset_in_file < ds_file->file->size); | |
e98a2d6e | 103 | |
127e2341 SM |
104 | /* |
105 | * If the mapping already contains the requested offset, just adjust | |
106 | * requested_offset_in_mapping. | |
107 | */ | |
108 | if (offset_ist_mapped(ds_file, requested_offset_in_file)) { | |
109 | ds_file->request_offset_in_mapping = | |
110 | requested_offset_in_file - ds_file->mmap_offset_in_file; | |
111 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
112 | goto end; | |
e98a2d6e PP |
113 | } |
114 | ||
127e2341 SM |
115 | /* Unmap old region */ |
116 | status = ds_file_munmap(ds_file); | |
117 | if (status != CTF_MSG_ITER_MEDIUM_STATUS_OK) { | |
e0f6a64a JG |
118 | goto end; |
119 | } | |
127e2341 SM |
120 | |
121 | /* | |
122 | * Compute a mapping that has the required alignment properties and | |
123 | * contains `requested_offset_in_file`. | |
124 | */ | |
125 | ds_file->request_offset_in_mapping = | |
126 | requested_offset_in_file % bt_mmap_get_offset_align_size(ds_file->log_level); | |
127 | ds_file->mmap_offset_in_file = | |
128 | requested_offset_in_file - ds_file->request_offset_in_mapping; | |
129 | ds_file->mmap_len = MIN(ds_file->file->size - ds_file->mmap_offset_in_file, | |
130 | ds_file->mmap_max_len); | |
131 | ||
132 | BT_ASSERT(ds_file->mmap_len > 0); | |
133 | ||
04394229 | 134 | ds_file->mmap_addr = bt_mmap((void *) 0, ds_file->mmap_len, |
94cf822e | 135 | PROT_READ, MAP_PRIVATE, fileno(ds_file->file->fp), |
e9bfbfe0 | 136 | ds_file->mmap_offset_in_file, ds_file->log_level); |
94cf822e | 137 | if (ds_file->mmap_addr == MAP_FAILED) { |
4c65a157 | 138 | BT_COMP_LOGE("Cannot memory-map address (size %zu) of file \"%s\" (%p) at offset %jd: %s", |
94cf822e | 139 | ds_file->mmap_len, ds_file->file->path->str, |
e9bfbfe0 | 140 | ds_file->file->fp, (intmax_t) ds_file->mmap_offset_in_file, |
78586d8a | 141 | strerror(errno)); |
887a9995 SM |
142 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
143 | goto end; | |
e98a2d6e PP |
144 | } |
145 | ||
887a9995 | 146 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; |
127e2341 SM |
147 | |
148 | end: | |
149 | return status; | |
150 | } | |
151 | ||
152 | /* | |
153 | * Change the mapping of the file to read the region that follows the current | |
154 | * mapping. | |
155 | * | |
156 | * If the file hasn't been mapped yet, then everything (mmap_offset_in_file, | |
157 | * mmap_len, request_offset_in_mapping) should have the value 0, which will | |
158 | * result in the beginning of the file getting mapped. | |
159 | * | |
160 | * return _EOF if the current mapping is the end of the file. | |
161 | */ | |
162 | ||
163 | static | |
164 | enum ctf_msg_iter_medium_status ds_file_mmap_next( | |
165 | struct ctf_fs_ds_file *ds_file) | |
166 | { | |
167 | enum ctf_msg_iter_medium_status status; | |
168 | ||
169 | /* | |
170 | * If we're called, it's because more bytes are requested but we have | |
171 | * given all the bytes of the current mapping. | |
172 | */ | |
173 | BT_ASSERT(ds_file->request_offset_in_mapping == ds_file->mmap_len); | |
174 | ||
175 | /* | |
176 | * If the current mapping coincides with the end of the file, there is | |
177 | * no next mapping. | |
178 | */ | |
179 | if (ds_file->mmap_offset_in_file + ds_file->mmap_len == ds_file->file->size) { | |
180 | status = CTF_MSG_ITER_MEDIUM_STATUS_EOF; | |
181 | goto end; | |
182 | } | |
183 | ||
184 | status = ds_file_mmap(ds_file, | |
185 | ds_file->mmap_offset_in_file + ds_file->mmap_len); | |
186 | ||
e98a2d6e | 187 | end: |
887a9995 | 188 | return status; |
e98a2d6e PP |
189 | } |
190 | ||
5b29e799 | 191 | static |
18a1979b | 192 | enum ctf_msg_iter_medium_status medop_request_bytes( |
e98a2d6e PP |
193 | size_t request_sz, uint8_t **buffer_addr, |
194 | size_t *buffer_sz, void *data) | |
195 | { | |
18a1979b SM |
196 | enum ctf_msg_iter_medium_status status = |
197 | CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
94cf822e | 198 | struct ctf_fs_ds_file *ds_file = data; |
2e42d046 SM |
199 | bt_self_component *self_comp = ds_file->self_comp; |
200 | bt_logging_level log_level = ds_file->log_level; | |
e98a2d6e | 201 | |
c9694de4 | 202 | BT_ASSERT(request_sz > 0); |
e98a2d6e | 203 | |
de2abea4 FD |
204 | /* |
205 | * Check if we have at least one memory-mapped byte left. If we don't, | |
206 | * mmap the next file. | |
207 | */ | |
94cf822e | 208 | if (remaining_mmap_bytes(ds_file) == 0) { |
e98a2d6e | 209 | /* Are we at the end of the file? */ |
e9bfbfe0 | 210 | if (ds_file->mmap_offset_in_file >= ds_file->file->size) { |
4c65a157 | 211 | BT_COMP_LOGD("Reached end of file \"%s\" (%p)", |
94cf822e | 212 | ds_file->file->path->str, ds_file->file->fp); |
18a1979b | 213 | status = CTF_MSG_ITER_MEDIUM_STATUS_EOF; |
e98a2d6e PP |
214 | goto end; |
215 | } | |
216 | ||
94cf822e | 217 | status = ds_file_mmap_next(ds_file); |
e0f6a64a | 218 | switch (status) { |
18a1979b | 219 | case CTF_MSG_ITER_MEDIUM_STATUS_OK: |
e0f6a64a | 220 | break; |
18a1979b | 221 | case CTF_MSG_ITER_MEDIUM_STATUS_EOF: |
e0f6a64a JG |
222 | goto end; |
223 | default: | |
4c65a157 | 224 | BT_COMP_LOGE("Cannot memory-map next region of file \"%s\" (%p)", |
94cf822e PP |
225 | ds_file->file->path->str, |
226 | ds_file->file->fp); | |
e98a2d6e PP |
227 | goto error; |
228 | } | |
229 | } | |
230 | ||
c9694de4 | 231 | BT_ASSERT(remaining_mmap_bytes(ds_file) > 0); |
94cf822e | 232 | *buffer_sz = MIN(remaining_mmap_bytes(ds_file), request_sz); |
c9694de4 | 233 | |
de2abea4 | 234 | BT_ASSERT(ds_file->mmap_addr); |
e9bfbfe0 | 235 | *buffer_addr = ((uint8_t *) ds_file->mmap_addr) + ds_file->request_offset_in_mapping; |
c9694de4 | 236 | |
e9bfbfe0 | 237 | ds_file->request_offset_in_mapping += *buffer_sz; |
e98a2d6e PP |
238 | goto end; |
239 | ||
240 | error: | |
18a1979b | 241 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; |
e98a2d6e PP |
242 | |
243 | end: | |
244 | return status; | |
245 | } | |
246 | ||
5b29e799 | 247 | static |
fc917f65 | 248 | bt_stream *medop_borrow_stream(bt_stream_class *stream_class, int64_t stream_id, |
b92735af | 249 | void *data) |
e98a2d6e | 250 | { |
94cf822e | 251 | struct ctf_fs_ds_file *ds_file = data; |
b19ff26f PP |
252 | bt_stream_class *ds_file_stream_class; |
253 | bt_stream *stream = NULL; | |
e5be10ef | 254 | |
40f4ba76 | 255 | ds_file_stream_class = bt_stream_borrow_class( |
e5be10ef | 256 | ds_file->stream); |
94cf822e | 257 | |
94cf822e PP |
258 | if (stream_class != ds_file_stream_class) { |
259 | /* | |
260 | * Not supported: two packets described by two different | |
261 | * stream classes within the same data stream file. | |
262 | */ | |
263 | goto end; | |
e98a2d6e PP |
264 | } |
265 | ||
94cf822e PP |
266 | stream = ds_file->stream; |
267 | ||
268 | end: | |
269 | return stream; | |
e98a2d6e PP |
270 | } |
271 | ||
9e0c8dbb | 272 | static |
701a0903 | 273 | enum ctf_msg_iter_medium_status medop_seek(off_t offset, void *data) |
9e0c8dbb | 274 | { |
9e0c8dbb | 275 | struct ctf_fs_ds_file *ds_file = data; |
9e0c8dbb | 276 | |
30174f59 | 277 | BT_ASSERT(offset >= 0); |
127e2341 | 278 | BT_ASSERT(offset < ds_file->file->size); |
9e0c8dbb | 279 | |
127e2341 | 280 | return ds_file_mmap(ds_file, offset); |
9e0c8dbb JG |
281 | } |
282 | ||
6de92955 | 283 | BT_HIDDEN |
18a1979b | 284 | struct ctf_msg_iter_medium_ops ctf_fs_ds_file_medops = { |
e98a2d6e | 285 | .request_bytes = medop_request_bytes, |
312c056a | 286 | .borrow_stream = medop_borrow_stream, |
9e0c8dbb | 287 | .seek = medop_seek, |
e98a2d6e | 288 | }; |
6de92955 | 289 | |
f6e68e70 SM |
290 | struct ctf_fs_ds_group_medops_data { |
291 | /* Weak, set once at creation time. */ | |
292 | struct ctf_fs_ds_file_group *ds_file_group; | |
293 | ||
294 | /* | |
295 | * Index (as in element rank) of the index entry of ds_file_groups' | |
296 | * index we will read next (so, the one after the one we are reading | |
297 | * right now). | |
298 | */ | |
299 | guint next_index_entry_index; | |
300 | ||
301 | /* | |
302 | * File we are currently reading. Changes whenever we switch to | |
303 | * reading another data file. | |
304 | * | |
305 | * Owned by this. | |
306 | */ | |
307 | struct ctf_fs_ds_file *file; | |
308 | ||
309 | /* Weak, for context / logging / appending causes. */ | |
310 | bt_self_message_iterator *self_msg_iter; | |
311 | bt_logging_level log_level; | |
312 | }; | |
313 | ||
314 | static | |
315 | enum ctf_msg_iter_medium_status medop_group_request_bytes( | |
316 | size_t request_sz, | |
317 | uint8_t **buffer_addr, | |
318 | size_t *buffer_sz, | |
319 | void *void_data) | |
320 | { | |
321 | struct ctf_fs_ds_group_medops_data *data = void_data; | |
322 | ||
323 | /* Return bytes from the current file. */ | |
324 | return medop_request_bytes(request_sz, buffer_addr, buffer_sz, data->file); | |
325 | } | |
326 | ||
327 | static | |
328 | bt_stream *medop_group_borrow_stream( | |
329 | bt_stream_class *stream_class, | |
330 | int64_t stream_id, | |
331 | void *void_data) | |
332 | { | |
333 | struct ctf_fs_ds_group_medops_data *data = void_data; | |
334 | ||
335 | return medop_borrow_stream(stream_class, stream_id, data->file); | |
336 | } | |
337 | ||
338 | /* | |
339 | * Set `data->file` to prepare it to read the packet described | |
340 | * by `index_entry`. | |
341 | */ | |
342 | ||
343 | static | |
344 | enum ctf_msg_iter_medium_status ctf_fs_ds_group_medops_set_file( | |
345 | struct ctf_fs_ds_group_medops_data *data, | |
346 | struct ctf_fs_ds_index_entry *index_entry, | |
347 | bt_self_message_iterator *self_msg_iter, | |
348 | bt_logging_level log_level) | |
349 | { | |
350 | enum ctf_msg_iter_medium_status status; | |
351 | ||
352 | BT_ASSERT(data); | |
353 | BT_ASSERT(index_entry); | |
354 | ||
355 | /* Check if that file is already the one mapped. */ | |
356 | if (!data->file || strcmp(index_entry->path, data->file->file->path->str) != 0) { | |
357 | /* Destroy the previously used file. */ | |
358 | ctf_fs_ds_file_destroy(data->file); | |
359 | ||
360 | /* Create the new file. */ | |
361 | data->file = ctf_fs_ds_file_create( | |
362 | data->ds_file_group->ctf_fs_trace, | |
363 | self_msg_iter, | |
364 | data->ds_file_group->stream, | |
365 | index_entry->path, | |
366 | log_level); | |
367 | if (!data->file) { | |
368 | BT_MSG_ITER_LOGE_APPEND_CAUSE(self_msg_iter, | |
369 | "failed to create ctf_fs_ds_file."); | |
370 | status = CTF_MSG_ITER_MEDIUM_STATUS_ERROR; | |
371 | goto end; | |
372 | } | |
373 | } | |
374 | ||
375 | /* | |
376 | * Ensure the right portion of the file will be returned on the next | |
377 | * request_bytes call. | |
378 | */ | |
379 | status = ds_file_mmap(data->file, index_entry->offset); | |
380 | if (status != CTF_MSG_ITER_MEDIUM_STATUS_OK) { | |
381 | goto end; | |
382 | } | |
383 | ||
384 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
385 | ||
386 | end: | |
387 | return status; | |
388 | } | |
389 | ||
390 | static | |
391 | enum ctf_msg_iter_medium_status medop_group_switch_packet(void *void_data) | |
392 | { | |
393 | struct ctf_fs_ds_group_medops_data *data = void_data; | |
394 | struct ctf_fs_ds_index_entry *index_entry; | |
395 | enum ctf_msg_iter_medium_status status; | |
396 | ||
397 | /* If we have gone through all index entries, we are done. */ | |
398 | if (data->next_index_entry_index >= | |
399 | data->ds_file_group->index->entries->len) { | |
400 | status = CTF_MSG_ITER_MEDIUM_STATUS_EOF; | |
401 | goto end; | |
402 | } | |
403 | ||
404 | /* | |
405 | * Otherwise, look up the next index entry / packet and prepare it | |
406 | * for reading. | |
407 | */ | |
408 | index_entry = g_ptr_array_index( | |
409 | data->ds_file_group->index->entries, | |
410 | data->next_index_entry_index); | |
411 | ||
412 | status = ctf_fs_ds_group_medops_set_file( | |
413 | data, index_entry, data->self_msg_iter, data->log_level); | |
414 | if (status != CTF_MSG_ITER_MEDIUM_STATUS_OK) { | |
415 | goto end; | |
416 | } | |
417 | ||
418 | data->next_index_entry_index++; | |
419 | ||
420 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
421 | end: | |
422 | return status; | |
423 | } | |
424 | ||
425 | BT_HIDDEN | |
426 | void ctf_fs_ds_group_medops_data_destroy( | |
427 | struct ctf_fs_ds_group_medops_data *data) | |
428 | { | |
429 | if (!data) { | |
430 | goto end; | |
431 | } | |
432 | ||
433 | ctf_fs_ds_file_destroy(data->file); | |
434 | ||
435 | g_free(data); | |
436 | ||
437 | end: | |
438 | return; | |
439 | } | |
440 | ||
441 | enum ctf_msg_iter_medium_status ctf_fs_ds_group_medops_data_create( | |
442 | struct ctf_fs_ds_file_group *ds_file_group, | |
443 | bt_self_message_iterator *self_msg_iter, | |
444 | bt_logging_level log_level, | |
445 | struct ctf_fs_ds_group_medops_data **out) | |
446 | { | |
447 | struct ctf_fs_ds_group_medops_data *data; | |
448 | enum ctf_msg_iter_medium_status status; | |
449 | ||
450 | BT_ASSERT(self_msg_iter); | |
451 | BT_ASSERT(ds_file_group); | |
452 | BT_ASSERT(ds_file_group->index); | |
453 | BT_ASSERT(ds_file_group->index->entries->len > 0); | |
454 | ||
455 | data = g_new0(struct ctf_fs_ds_group_medops_data, 1); | |
456 | if (!data) { | |
457 | BT_MSG_ITER_LOGE_APPEND_CAUSE(self_msg_iter, | |
458 | "Failed to allocate a struct ctf_fs_ds_group_medops_data"); | |
459 | status = CTF_MSG_ITER_MEDIUM_STATUS_MEMORY_ERROR; | |
460 | goto error; | |
461 | } | |
462 | ||
463 | data->ds_file_group = ds_file_group; | |
464 | data->self_msg_iter = self_msg_iter; | |
465 | data->log_level = log_level; | |
466 | ||
467 | /* | |
468 | * No need to prepare the first file. ctf_msg_iter will call | |
469 | * switch_packet before reading the first packet, it will be | |
470 | * done then. | |
471 | */ | |
472 | ||
473 | *out = data; | |
474 | status = CTF_MSG_ITER_MEDIUM_STATUS_OK; | |
475 | goto end; | |
476 | ||
477 | error: | |
478 | ctf_fs_ds_group_medops_data_destroy(data); | |
479 | ||
480 | end: | |
481 | return status; | |
482 | } | |
483 | ||
484 | void ctf_fs_ds_group_medops_data_reset(struct ctf_fs_ds_group_medops_data *data) | |
485 | { | |
486 | data->next_index_entry_index = 0; | |
487 | } | |
488 | ||
489 | struct ctf_msg_iter_medium_ops ctf_fs_ds_group_medops = { | |
490 | .request_bytes = medop_group_request_bytes, | |
491 | .borrow_stream = medop_group_borrow_stream, | |
492 | .switch_packet = medop_group_switch_packet, | |
493 | ||
494 | /* | |
495 | * We don't support seeking using this medops. It would probably be | |
496 | * possible, but it's not needed at the moment. | |
497 | */ | |
498 | .seek = NULL, | |
499 | }; | |
500 | ||
6834784d SM |
501 | static |
502 | struct ctf_fs_ds_index_entry *ctf_fs_ds_index_entry_create( | |
503 | bt_self_component *self_comp, bt_logging_level log_level) | |
504 | { | |
505 | struct ctf_fs_ds_index_entry *entry; | |
506 | ||
507 | entry = g_new0(struct ctf_fs_ds_index_entry, 1); | |
508 | if (!entry) { | |
509 | BT_COMP_LOGE_APPEND_CAUSE(self_comp, "Failed to allocate a ctf_fs_ds_index_entry."); | |
510 | goto end; | |
511 | } | |
512 | ||
513 | entry->packet_seq_num = UINT64_MAX; | |
514 | ||
515 | end: | |
516 | return entry; | |
517 | } | |
518 | ||
97ade20b | 519 | static |
0f2d58c9 | 520 | int convert_cycles_to_ns(struct ctf_clock_class *clock_class, |
97ade20b | 521 | uint64_t cycles, int64_t *ns) |
b6c3dcb2 | 522 | { |
0f2d58c9 PP |
523 | return bt_util_clock_cycles_to_ns_from_origin(cycles, |
524 | clock_class->frequency, clock_class->offset_seconds, | |
525 | clock_class->offset_cycles, ns); | |
97ade20b JG |
526 | } |
527 | ||
528 | static | |
529 | struct ctf_fs_ds_index *build_index_from_idx_file( | |
bf012bde | 530 | struct ctf_fs_ds_file *ds_file, |
6d54260a SM |
531 | struct ctf_fs_ds_file_info *file_info, |
532 | struct ctf_msg_iter *msg_iter) | |
97ade20b JG |
533 | { |
534 | int ret; | |
b6c3dcb2 JG |
535 | gchar *directory = NULL; |
536 | gchar *basename = NULL; | |
537 | GString *index_basename = NULL; | |
538 | gchar *index_file_path = NULL; | |
539 | GMappedFile *mapped_file = NULL; | |
540 | gsize filesize; | |
97ade20b JG |
541 | const char *mmap_begin = NULL, *file_pos = NULL; |
542 | const struct ctf_packet_index_file_hdr *header = NULL; | |
543 | struct ctf_fs_ds_index *index = NULL; | |
de38c26a | 544 | struct ctf_fs_ds_index_entry *index_entry = NULL, *prev_index_entry = NULL; |
b6c3dcb2 JG |
545 | uint64_t total_packets_size = 0; |
546 | size_t file_index_entry_size; | |
547 | size_t file_entry_count; | |
548 | size_t i; | |
44c440bc | 549 | struct ctf_stream_class *sc; |
18a1979b | 550 | struct ctf_msg_iter_packet_properties props; |
1984ac2b | 551 | uint32_t version_major, version_minor; |
2e42d046 SM |
552 | bt_self_component *self_comp = ds_file->self_comp; |
553 | bt_logging_level log_level = ds_file->log_level; | |
97ade20b | 554 | |
4c65a157 | 555 | BT_COMP_LOGI("Building index from .idx file of stream file %s", |
97ade20b | 556 | ds_file->file->path->str); |
6d54260a | 557 | ret = ctf_msg_iter_get_packet_properties(msg_iter, &props); |
97ade20b | 558 | if (ret) { |
4c65a157 | 559 | BT_COMP_LOGI_STR("Cannot read first packet's header and context fields."); |
44c440bc PP |
560 | goto error; |
561 | } | |
562 | ||
44c440bc PP |
563 | sc = ctf_trace_class_borrow_stream_class_by_id(ds_file->metadata->tc, |
564 | props.stream_class_id); | |
565 | BT_ASSERT(sc); | |
566 | if (!sc->default_clock_class) { | |
4c65a157 | 567 | BT_COMP_LOGI_STR("Cannot find stream class's default clock class."); |
97ade20b JG |
568 | goto error; |
569 | } | |
b6c3dcb2 JG |
570 | |
571 | /* Look for index file in relative path index/name.idx. */ | |
94cf822e | 572 | basename = g_path_get_basename(ds_file->file->path->str); |
b6c3dcb2 | 573 | if (!basename) { |
4c65a157 | 574 | BT_COMP_LOGE("Cannot get the basename of datastream file %s", |
55314f2a | 575 | ds_file->file->path->str); |
97ade20b | 576 | goto error; |
b6c3dcb2 JG |
577 | } |
578 | ||
94cf822e | 579 | directory = g_path_get_dirname(ds_file->file->path->str); |
b6c3dcb2 | 580 | if (!directory) { |
4c65a157 | 581 | BT_COMP_LOGE("Cannot get dirname of datastream file %s", |
55314f2a | 582 | ds_file->file->path->str); |
97ade20b | 583 | goto error; |
b6c3dcb2 JG |
584 | } |
585 | ||
586 | index_basename = g_string_new(basename); | |
587 | if (!index_basename) { | |
4c65a157 | 588 | BT_COMP_LOGE_STR("Cannot allocate index file basename string"); |
97ade20b | 589 | goto error; |
b6c3dcb2 JG |
590 | } |
591 | ||
592 | g_string_append(index_basename, ".idx"); | |
593 | index_file_path = g_build_filename(directory, "index", | |
594 | index_basename->str, NULL); | |
595 | mapped_file = g_mapped_file_new(index_file_path, FALSE, NULL); | |
06367fa3 | 596 | if (!mapped_file) { |
4c65a157 | 597 | BT_COMP_LOGD("Cannot create new mapped file %s", |
55314f2a | 598 | index_file_path); |
97ade20b | 599 | goto error; |
06367fa3 | 600 | } |
d14940a7 JG |
601 | |
602 | /* | |
603 | * The g_mapped_file API limits us to 4GB files on 32-bit. | |
604 | * Traces with such large indexes have never been seen in the wild, | |
605 | * but this would need to be adjusted to support them. | |
606 | */ | |
b6c3dcb2 JG |
607 | filesize = g_mapped_file_get_length(mapped_file); |
608 | if (filesize < sizeof(*header)) { | |
4c65a157 | 609 | BT_COMP_LOGW("Invalid LTTng trace index file: " |
d14940a7 JG |
610 | "file size (%zu bytes) < header size (%zu bytes)", |
611 | filesize, sizeof(*header)); | |
97ade20b | 612 | goto error; |
b6c3dcb2 JG |
613 | } |
614 | ||
615 | mmap_begin = g_mapped_file_get_contents(mapped_file); | |
616 | header = (struct ctf_packet_index_file_hdr *) mmap_begin; | |
617 | ||
618 | file_pos = g_mapped_file_get_contents(mapped_file) + sizeof(*header); | |
619 | if (be32toh(header->magic) != CTF_INDEX_MAGIC) { | |
4c65a157 | 620 | BT_COMP_LOGW_STR("Invalid LTTng trace index: \"magic\" field validation failed"); |
97ade20b | 621 | goto error; |
b6c3dcb2 | 622 | } |
b6c3dcb2 | 623 | |
1984ac2b SM |
624 | version_major = be32toh(header->index_major); |
625 | version_minor = be32toh(header->index_minor); | |
626 | if (version_major != 1) { | |
627 | BT_COMP_LOGW( | |
628 | "Unknown LTTng trace index version: " | |
629 | "major=%" PRIu32 ", minor=%" PRIu32, | |
630 | version_major, version_minor); | |
631 | goto error; | |
632 | } | |
633 | ||
b6c3dcb2 JG |
634 | file_index_entry_size = be32toh(header->packet_index_len); |
635 | file_entry_count = (filesize - sizeof(*header)) / file_index_entry_size; | |
97ade20b | 636 | if ((filesize - sizeof(*header)) % file_index_entry_size) { |
4c65a157 | 637 | BT_COMP_LOGW("Invalid LTTng trace index: the index's size after the header " |
d14940a7 JG |
638 | "(%zu bytes) is not a multiple of the index entry size " |
639 | "(%zu bytes)", (filesize - sizeof(*header)), | |
640 | sizeof(*header)); | |
97ade20b | 641 | goto error; |
b6c3dcb2 JG |
642 | } |
643 | ||
4c65a157 | 644 | index = ctf_fs_ds_index_create(ds_file->log_level, ds_file->self_comp); |
97ade20b JG |
645 | if (!index) { |
646 | goto error; | |
b6c3dcb2 | 647 | } |
97ade20b | 648 | |
b6c3dcb2 JG |
649 | for (i = 0; i < file_entry_count; i++) { |
650 | struct ctf_packet_index *file_index = | |
651 | (struct ctf_packet_index *) file_pos; | |
652 | uint64_t packet_size = be64toh(file_index->packet_size); | |
653 | ||
654 | if (packet_size % CHAR_BIT) { | |
4c65a157 | 655 | BT_COMP_LOGW("Invalid packet size encountered in LTTng trace index file"); |
97ade20b | 656 | goto error; |
b6c3dcb2 JG |
657 | } |
658 | ||
6834784d SM |
659 | index_entry = ctf_fs_ds_index_entry_create( |
660 | ds_file->self_comp, ds_file->log_level); | |
7ed5243a | 661 | if (!index_entry) { |
6834784d SM |
662 | BT_COMP_LOGE_APPEND_CAUSE(ds_file->self_comp, |
663 | "Failed to create a ctf_fs_ds_index_entry."); | |
7ed5243a FD |
664 | goto error; |
665 | } | |
666 | ||
bf012bde FD |
667 | /* Set path to stream file. */ |
668 | index_entry->path = file_info->path->str; | |
669 | ||
b6c3dcb2 JG |
670 | /* Convert size in bits to bytes. */ |
671 | packet_size /= CHAR_BIT; | |
97ade20b | 672 | index_entry->packet_size = packet_size; |
b6c3dcb2 | 673 | |
97ade20b | 674 | index_entry->offset = be64toh(file_index->offset); |
de38c26a | 675 | if (i != 0 && index_entry->offset < prev_index_entry->offset) { |
4c65a157 | 676 | BT_COMP_LOGW("Invalid, non-monotonic, packet offset encountered in LTTng trace index file: " |
d14940a7 | 677 | "previous offset=%" PRIu64 ", current offset=%" PRIu64, |
9dd33658 | 678 | prev_index_entry->offset, index_entry->offset); |
97ade20b | 679 | goto error; |
b6c3dcb2 JG |
680 | } |
681 | ||
97ade20b JG |
682 | index_entry->timestamp_begin = be64toh(file_index->timestamp_begin); |
683 | index_entry->timestamp_end = be64toh(file_index->timestamp_end); | |
684 | if (index_entry->timestamp_end < index_entry->timestamp_begin) { | |
4c65a157 | 685 | BT_COMP_LOGW("Invalid packet time bounds encountered in LTTng trace index file (begin > end): " |
d14940a7 JG |
686 | "timestamp_begin=%" PRIu64 "timestamp_end=%" PRIu64, |
687 | index_entry->timestamp_begin, | |
688 | index_entry->timestamp_end); | |
97ade20b JG |
689 | goto error; |
690 | } | |
691 | ||
692 | /* Convert the packet's bound to nanoseconds since Epoch. */ | |
44c440bc | 693 | ret = convert_cycles_to_ns(sc->default_clock_class, |
97ade20b JG |
694 | index_entry->timestamp_begin, |
695 | &index_entry->timestamp_begin_ns); | |
696 | if (ret) { | |
4c65a157 | 697 | BT_COMP_LOGI_STR("Failed to convert raw timestamp to nanoseconds since Epoch during index parsing"); |
97ade20b JG |
698 | goto error; |
699 | } | |
44c440bc | 700 | ret = convert_cycles_to_ns(sc->default_clock_class, |
97ade20b JG |
701 | index_entry->timestamp_end, |
702 | &index_entry->timestamp_end_ns); | |
703 | if (ret) { | |
4c65a157 | 704 | BT_COMP_LOGI_STR("Failed to convert raw timestamp to nanoseconds since Epoch during LTTng trace index parsing"); |
97ade20b | 705 | goto error; |
b6c3dcb2 JG |
706 | } |
707 | ||
6834784d SM |
708 | if (version_minor >= 1) { |
709 | index_entry->packet_seq_num = be64toh(file_index->packet_seq_num); | |
710 | } | |
711 | ||
b6c3dcb2 JG |
712 | total_packets_size += packet_size; |
713 | file_pos += file_index_entry_size; | |
7ed5243a | 714 | |
de38c26a | 715 | prev_index_entry = index_entry; |
f35a48bc SM |
716 | |
717 | /* Give ownership of `index_entry` to `index->entries`. */ | |
718 | g_ptr_array_add(index->entries, index_entry); | |
719 | index_entry = NULL; | |
b6c3dcb2 JG |
720 | } |
721 | ||
722 | /* Validate that the index addresses the complete stream. */ | |
94cf822e | 723 | if (ds_file->file->size != total_packets_size) { |
4c65a157 | 724 | BT_COMP_LOGW("Invalid LTTng trace index file; indexed size != stream file size: " |
9e0c8dbb | 725 | "file-size=%" PRIu64 ", total-packets-size=%" PRIu64, |
d14940a7 | 726 | ds_file->file->size, total_packets_size); |
97ade20b | 727 | goto error; |
b6c3dcb2 JG |
728 | } |
729 | end: | |
730 | g_free(directory); | |
731 | g_free(basename); | |
732 | g_free(index_file_path); | |
06367fa3 JG |
733 | if (index_basename) { |
734 | g_string_free(index_basename, TRUE); | |
735 | } | |
736 | if (mapped_file) { | |
737 | g_mapped_file_unref(mapped_file); | |
738 | } | |
97ade20b JG |
739 | return index; |
740 | error: | |
741 | ctf_fs_ds_index_destroy(index); | |
7ed5243a | 742 | g_free(index_entry); |
97ade20b | 743 | index = NULL; |
b6c3dcb2 JG |
744 | goto end; |
745 | } | |
746 | ||
9e0c8dbb JG |
747 | static |
748 | int init_index_entry(struct ctf_fs_ds_index_entry *entry, | |
44c440bc | 749 | struct ctf_fs_ds_file *ds_file, |
18a1979b | 750 | struct ctf_msg_iter_packet_properties *props, |
44c440bc | 751 | off_t packet_size, off_t packet_offset) |
9e0c8dbb | 752 | { |
ca79a87c | 753 | int ret = 0; |
44c440bc | 754 | struct ctf_stream_class *sc; |
2e42d046 SM |
755 | bt_self_component *self_comp = ds_file->self_comp; |
756 | bt_logging_level log_level = ds_file->log_level; | |
9e0c8dbb | 757 | |
44c440bc PP |
758 | sc = ctf_trace_class_borrow_stream_class_by_id(ds_file->metadata->tc, |
759 | props->stream_class_id); | |
760 | BT_ASSERT(sc); | |
f6ccaed9 | 761 | BT_ASSERT(packet_offset >= 0); |
9e0c8dbb | 762 | entry->offset = packet_offset; |
f6ccaed9 | 763 | BT_ASSERT(packet_size >= 0); |
9e0c8dbb JG |
764 | entry->packet_size = packet_size; |
765 | ||
83ebb7f1 | 766 | if (props->snapshots.beginning_clock != UINT64_C(-1)) { |
41bd46eb FD |
767 | entry->timestamp_begin = props->snapshots.beginning_clock; |
768 | ||
83ebb7f1 PP |
769 | /* Convert the packet's bound to nanoseconds since Epoch. */ |
770 | ret = convert_cycles_to_ns(sc->default_clock_class, | |
771 | props->snapshots.beginning_clock, | |
772 | &entry->timestamp_begin_ns); | |
773 | if (ret) { | |
4c65a157 | 774 | BT_COMP_LOGI_STR("Failed to convert raw timestamp to nanoseconds since Epoch."); |
83ebb7f1 PP |
775 | goto end; |
776 | } | |
777 | } else { | |
41bd46eb | 778 | entry->timestamp_begin = UINT64_C(-1); |
83ebb7f1 | 779 | entry->timestamp_begin_ns = UINT64_C(-1); |
9e0c8dbb JG |
780 | } |
781 | ||
83ebb7f1 | 782 | if (props->snapshots.end_clock != UINT64_C(-1)) { |
41bd46eb FD |
783 | entry->timestamp_end = props->snapshots.end_clock; |
784 | ||
785 | /* Convert the packet's bound to nanoseconds since Epoch. */ | |
83ebb7f1 PP |
786 | ret = convert_cycles_to_ns(sc->default_clock_class, |
787 | props->snapshots.end_clock, | |
788 | &entry->timestamp_end_ns); | |
789 | if (ret) { | |
4c65a157 | 790 | BT_COMP_LOGI_STR("Failed to convert raw timestamp to nanoseconds since Epoch."); |
83ebb7f1 PP |
791 | goto end; |
792 | } | |
793 | } else { | |
41bd46eb | 794 | entry->timestamp_end = UINT64_C(-1); |
83ebb7f1 | 795 | entry->timestamp_end_ns = UINT64_C(-1); |
9e0c8dbb | 796 | } |
0b29603d | 797 | |
9e0c8dbb | 798 | end: |
9e0c8dbb JG |
799 | return ret; |
800 | } | |
801 | ||
802 | static | |
803 | struct ctf_fs_ds_index *build_index_from_stream_file( | |
bf012bde | 804 | struct ctf_fs_ds_file *ds_file, |
6d54260a SM |
805 | struct ctf_fs_ds_file_info *file_info, |
806 | struct ctf_msg_iter *msg_iter) | |
9e0c8dbb JG |
807 | { |
808 | int ret; | |
809 | struct ctf_fs_ds_index *index = NULL; | |
18a1979b | 810 | enum ctf_msg_iter_status iter_status = CTF_MSG_ITER_STATUS_OK; |
fc917f65 | 811 | off_t current_packet_offset_bytes = 0; |
2e42d046 SM |
812 | bt_self_component *self_comp = ds_file->self_comp; |
813 | bt_logging_level log_level = ds_file->log_level; | |
9e0c8dbb | 814 | |
4c65a157 | 815 | BT_COMP_LOGI("Indexing stream file %s", ds_file->file->path->str); |
9e0c8dbb | 816 | |
4c65a157 | 817 | index = ctf_fs_ds_index_create(ds_file->log_level, ds_file->self_comp); |
9e0c8dbb JG |
818 | if (!index) { |
819 | goto error; | |
820 | } | |
821 | ||
2b601d0c | 822 | while (true) { |
44c440bc | 823 | off_t current_packet_size_bytes; |
7ed5243a | 824 | struct ctf_fs_ds_index_entry *index_entry; |
18a1979b | 825 | struct ctf_msg_iter_packet_properties props; |
9e0c8dbb | 826 | |
fc917f65 | 827 | if (current_packet_offset_bytes < 0) { |
4c65a157 | 828 | BT_COMP_LOGE_STR("Cannot get the current packet's offset."); |
fc917f65 PP |
829 | goto error; |
830 | } else if (current_packet_offset_bytes > ds_file->file->size) { | |
4c65a157 | 831 | BT_COMP_LOGE_STR("Unexpected current packet's offset (larger than file)."); |
fc917f65 PP |
832 | goto error; |
833 | } else if (current_packet_offset_bytes == ds_file->file->size) { | |
834 | /* No more data */ | |
835 | break; | |
836 | } | |
837 | ||
6d54260a | 838 | iter_status = ctf_msg_iter_seek(msg_iter, |
fc917f65 | 839 | current_packet_offset_bytes); |
18a1979b | 840 | if (iter_status != CTF_MSG_ITER_STATUS_OK) { |
9e0c8dbb JG |
841 | goto error; |
842 | } | |
312c056a | 843 | |
18a1979b | 844 | iter_status = ctf_msg_iter_get_packet_properties( |
6d54260a | 845 | msg_iter, &props); |
18a1979b | 846 | if (iter_status != CTF_MSG_ITER_STATUS_OK) { |
9e0c8dbb JG |
847 | goto error; |
848 | } | |
849 | ||
fc917f65 PP |
850 | if (props.exp_packet_total_size >= 0) { |
851 | current_packet_size_bytes = | |
852 | (uint64_t) props.exp_packet_total_size / 8; | |
853 | } else { | |
854 | current_packet_size_bytes = ds_file->file->size; | |
855 | } | |
9e0c8dbb | 856 | |
fc917f65 | 857 | if (current_packet_offset_bytes + current_packet_size_bytes > |
9e0c8dbb | 858 | ds_file->file->size) { |
4c65a157 | 859 | BT_COMP_LOGW("Invalid packet size reported in file: stream=\"%s\", " |
9e0c8dbb JG |
860 | "packet-offset=%jd, packet-size-bytes=%jd, " |
861 | "file-size=%jd", | |
862 | ds_file->file->path->str, | |
df0fc0bf JR |
863 | (intmax_t) current_packet_offset_bytes, |
864 | (intmax_t) current_packet_size_bytes, | |
865 | (intmax_t) ds_file->file->size); | |
9e0c8dbb JG |
866 | goto error; |
867 | } | |
868 | ||
6834784d SM |
869 | index_entry = ctf_fs_ds_index_entry_create( |
870 | ds_file->self_comp, ds_file->log_level); | |
7ed5243a | 871 | if (!index_entry) { |
6834784d SM |
872 | BT_COMP_LOGE_APPEND_CAUSE(ds_file->self_comp, |
873 | "Failed to create a ctf_fs_ds_index_entry."); | |
9e0c8dbb JG |
874 | goto error; |
875 | } | |
876 | ||
bf012bde FD |
877 | /* Set path to stream file. */ |
878 | index_entry->path = file_info->path->str; | |
879 | ||
7ed5243a | 880 | ret = init_index_entry(index_entry, ds_file, &props, |
fc917f65 | 881 | current_packet_size_bytes, current_packet_offset_bytes); |
9e0c8dbb | 882 | if (ret) { |
7ed5243a | 883 | g_free(index_entry); |
9e0c8dbb JG |
884 | goto error; |
885 | } | |
7ed5243a FD |
886 | |
887 | g_ptr_array_add(index->entries, index_entry); | |
888 | ||
ca633588 | 889 | current_packet_offset_bytes += current_packet_size_bytes; |
4c65a157 | 890 | BT_COMP_LOGD("Seeking to next packet: current-packet-offset=%jd, " |
ca633588 | 891 | "next-packet-offset=%jd", |
df0fc0bf JR |
892 | (intmax_t) (current_packet_offset_bytes - current_packet_size_bytes), |
893 | (intmax_t) current_packet_offset_bytes); | |
9e0c8dbb | 894 | } |
312c056a | 895 | |
9e0c8dbb | 896 | end: |
9e0c8dbb | 897 | return index; |
312c056a | 898 | |
9e0c8dbb JG |
899 | error: |
900 | ctf_fs_ds_index_destroy(index); | |
901 | index = NULL; | |
902 | goto end; | |
903 | } | |
904 | ||
e7a4393b | 905 | BT_HIDDEN |
94cf822e PP |
906 | struct ctf_fs_ds_file *ctf_fs_ds_file_create( |
907 | struct ctf_fs_trace *ctf_fs_trace, | |
f5f7e8df | 908 | bt_self_message_iterator *self_msg_iter, |
98903a3e PP |
909 | bt_stream *stream, const char *path, |
910 | bt_logging_level log_level) | |
e98a2d6e | 911 | { |
b6c3dcb2 | 912 | int ret; |
3b16a19b | 913 | const size_t offset_align = bt_mmap_get_offset_align_size(log_level); |
94cf822e | 914 | struct ctf_fs_ds_file *ds_file = g_new0(struct ctf_fs_ds_file, 1); |
e98a2d6e | 915 | |
94cf822e | 916 | if (!ds_file) { |
e98a2d6e PP |
917 | goto error; |
918 | } | |
919 | ||
98903a3e | 920 | ds_file->log_level = log_level; |
4c65a157 | 921 | ds_file->self_comp = ctf_fs_trace->self_comp; |
f5f7e8df | 922 | ds_file->self_msg_iter = self_msg_iter; |
4c65a157 | 923 | ds_file->file = ctf_fs_file_create(log_level, ds_file->self_comp); |
94cf822e | 924 | if (!ds_file->file) { |
4f1f88a6 PP |
925 | goto error; |
926 | } | |
927 | ||
398454ed | 928 | ds_file->stream = stream; |
c5b9b441 | 929 | bt_stream_get_ref(ds_file->stream); |
44c440bc | 930 | ds_file->metadata = ctf_fs_trace->metadata; |
94cf822e | 931 | g_string_assign(ds_file->file->path, path); |
55314f2a | 932 | ret = ctf_fs_file_open(ds_file->file, "rb"); |
4f1f88a6 PP |
933 | if (ret) { |
934 | goto error; | |
935 | } | |
936 | ||
3b16a19b | 937 | ds_file->mmap_max_len = offset_align * 2048; |
94cf822e | 938 | |
e98a2d6e | 939 | goto end; |
1a9f7075 | 940 | |
e98a2d6e | 941 | error: |
78586d8a | 942 | /* Do not touch "borrowed" file. */ |
94cf822e PP |
943 | ctf_fs_ds_file_destroy(ds_file); |
944 | ds_file = NULL; | |
1a9f7075 | 945 | |
e98a2d6e | 946 | end: |
94cf822e | 947 | return ds_file; |
e98a2d6e PP |
948 | } |
949 | ||
97ade20b JG |
950 | BT_HIDDEN |
951 | struct ctf_fs_ds_index *ctf_fs_ds_file_build_index( | |
bf012bde | 952 | struct ctf_fs_ds_file *ds_file, |
6d54260a SM |
953 | struct ctf_fs_ds_file_info *file_info, |
954 | struct ctf_msg_iter *msg_iter) | |
97ade20b | 955 | { |
9e0c8dbb | 956 | struct ctf_fs_ds_index *index; |
2e42d046 SM |
957 | bt_self_component *self_comp = ds_file->self_comp; |
958 | bt_logging_level log_level = ds_file->log_level; | |
9e0c8dbb | 959 | |
6d54260a | 960 | index = build_index_from_idx_file(ds_file, file_info, msg_iter); |
9e0c8dbb JG |
961 | if (index) { |
962 | goto end; | |
963 | } | |
964 | ||
4c65a157 | 965 | BT_COMP_LOGI("Failed to build index from .index file; " |
9e0c8dbb | 966 | "falling back to stream indexing."); |
6d54260a | 967 | index = build_index_from_stream_file(ds_file, file_info, msg_iter); |
9e0c8dbb JG |
968 | end: |
969 | return index; | |
97ade20b JG |
970 | } |
971 | ||
7ed5243a | 972 | BT_HIDDEN |
4c65a157 PP |
973 | struct ctf_fs_ds_index *ctf_fs_ds_index_create(bt_logging_level log_level, |
974 | bt_self_component *self_comp) | |
7ed5243a FD |
975 | { |
976 | struct ctf_fs_ds_index *index = g_new0(struct ctf_fs_ds_index, 1); | |
977 | ||
978 | if (!index) { | |
4c65a157 | 979 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_comp, |
98903a3e | 980 | "Failed to allocate index"); |
7ed5243a FD |
981 | goto error; |
982 | } | |
983 | ||
984 | index->entries = g_ptr_array_new_with_free_func((GDestroyNotify) g_free); | |
985 | if (!index->entries) { | |
4c65a157 | 986 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_comp, |
98903a3e | 987 | "Failed to allocate index entries."); |
7ed5243a FD |
988 | goto error; |
989 | } | |
990 | ||
991 | goto end; | |
992 | ||
993 | error: | |
994 | ctf_fs_ds_index_destroy(index); | |
995 | index = NULL; | |
996 | end: | |
997 | return index; | |
998 | } | |
999 | ||
5b29e799 | 1000 | BT_HIDDEN |
94cf822e | 1001 | void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file *ds_file) |
e98a2d6e | 1002 | { |
94cf822e | 1003 | if (!ds_file) { |
5b29e799 | 1004 | return; |
043e2020 JG |
1005 | } |
1006 | ||
c5b9b441 | 1007 | bt_stream_put_ref(ds_file->stream); |
94cf822e | 1008 | (void) ds_file_munmap(ds_file); |
0982a26d | 1009 | |
94cf822e PP |
1010 | if (ds_file->file) { |
1011 | ctf_fs_file_destroy(ds_file->file); | |
e98a2d6e PP |
1012 | } |
1013 | ||
94cf822e | 1014 | g_free(ds_file); |
e98a2d6e | 1015 | } |
4f1f88a6 | 1016 | |
97ade20b JG |
1017 | BT_HIDDEN |
1018 | void ctf_fs_ds_index_destroy(struct ctf_fs_ds_index *index) | |
1019 | { | |
1020 | if (!index) { | |
1021 | return; | |
1022 | } | |
1023 | ||
1024 | if (index->entries) { | |
7ed5243a | 1025 | g_ptr_array_free(index->entries, TRUE); |
97ade20b JG |
1026 | } |
1027 | g_free(index); | |
1028 | } |