Commit | Line | Data |
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e98a2d6e | 1 | /* |
94cf822e | 2 | * Copyright 2016-2017 - Philippe Proulx <pproulx@efficios.com> |
fc9a526c | 3 | * Copyright 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com> |
e98a2d6e PP |
4 | * Copyright 2010-2011 - EfficiOS Inc. and Linux Foundation |
5 | * | |
e98a2d6e PP |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
22 | * SOFTWARE. | |
23 | */ | |
24 | ||
0fbb9a9f | 25 | #include <stdlib.h> |
e98a2d6e PP |
26 | #include <stdio.h> |
27 | #include <stdint.h> | |
28 | #include <stdlib.h> | |
29 | #include <stdbool.h> | |
30 | #include <glib.h> | |
31 | #include <inttypes.h> | |
8f76831a | 32 | #include <babeltrace/compat/mman-internal.h> |
e9383dfd | 33 | #include <babeltrace/endian-internal.h> |
e98a2d6e | 34 | #include <babeltrace/ctf-ir/stream.h> |
b2e0c907 | 35 | #include <babeltrace/graph/notification-iterator.h> |
4f1f88a6 PP |
36 | #include <babeltrace/graph/notification-stream.h> |
37 | #include <babeltrace/graph/notification-event.h> | |
38 | #include <babeltrace/graph/notification-packet.h> | |
55314f2a | 39 | #include <babeltrace/common-internal.h> |
78586d8a JG |
40 | #include "file.h" |
41 | #include "metadata.h" | |
42 | #include "../common/notif-iter/notif-iter.h" | |
43 | #include <assert.h> | |
94cf822e | 44 | #include "data-stream-file.h" |
e9383dfd | 45 | #include <string.h> |
e98a2d6e | 46 | |
55314f2a JG |
47 | #define BT_LOG_TAG "PLUGIN-CTF-FS-SRC-DS" |
48 | #include "logging.h" | |
e98a2d6e | 49 | |
4f1f88a6 | 50 | static inline |
94cf822e | 51 | size_t remaining_mmap_bytes(struct ctf_fs_ds_file *ds_file) |
e98a2d6e | 52 | { |
2c701ca6 | 53 | return ds_file->mmap_len - ds_file->request_offset; |
e98a2d6e PP |
54 | } |
55 | ||
5b29e799 | 56 | static |
94cf822e | 57 | int ds_file_munmap(struct ctf_fs_ds_file *ds_file) |
e98a2d6e | 58 | { |
fc9a526c | 59 | int ret = 0; |
e98a2d6e | 60 | |
d238196d | 61 | if (!ds_file || !ds_file->mmap_addr) { |
94cf822e PP |
62 | goto end; |
63 | } | |
64 | ||
04394229 | 65 | if (bt_munmap(ds_file->mmap_addr, ds_file->mmap_len)) { |
cd232764 JG |
66 | BT_LOGE_ERRNO("Cannot memory-unmap file", |
67 | ": address=%p, size=%zu, file_path=\"%s\", file=%p", | |
94cf822e | 68 | ds_file->mmap_addr, ds_file->mmap_len, |
cd232764 JG |
69 | ds_file->file->path->str, |
70 | ds_file->file ? ds_file->file->fp : NULL); | |
fc9a526c JG |
71 | ret = -1; |
72 | goto end; | |
e98a2d6e | 73 | } |
94cf822e PP |
74 | |
75 | ds_file->mmap_addr = NULL; | |
76 | ||
fc9a526c JG |
77 | end: |
78 | return ret; | |
e98a2d6e PP |
79 | } |
80 | ||
5b29e799 | 81 | static |
94cf822e PP |
82 | enum bt_ctf_notif_iter_medium_status ds_file_mmap_next( |
83 | struct ctf_fs_ds_file *ds_file) | |
e98a2d6e | 84 | { |
e0f6a64a JG |
85 | enum bt_ctf_notif_iter_medium_status ret = |
86 | BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK; | |
e98a2d6e PP |
87 | |
88 | /* Unmap old region */ | |
94cf822e PP |
89 | if (ds_file->mmap_addr) { |
90 | if (ds_file_munmap(ds_file)) { | |
e98a2d6e PP |
91 | goto error; |
92 | } | |
93 | ||
2f5a009b | 94 | /* |
2c701ca6 | 95 | * mmap_len is guaranteed to be page-aligned except on the |
2f5a009b JG |
96 | * last mapping where it may not be possible (since the file's |
97 | * size itself may not be a page multiple). | |
98 | */ | |
2c701ca6 | 99 | ds_file->mmap_offset += ds_file->mmap_len; |
94cf822e | 100 | ds_file->request_offset = 0; |
e98a2d6e PP |
101 | } |
102 | ||
2c701ca6 | 103 | ds_file->mmap_len = MIN(ds_file->file->size - ds_file->mmap_offset, |
94cf822e | 104 | ds_file->mmap_max_len); |
2c701ca6 | 105 | if (ds_file->mmap_len == 0) { |
e0f6a64a JG |
106 | ret = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF; |
107 | goto end; | |
108 | } | |
e98a2d6e | 109 | /* Map new region */ |
94cf822e | 110 | assert(ds_file->mmap_len); |
04394229 | 111 | ds_file->mmap_addr = bt_mmap((void *) 0, ds_file->mmap_len, |
94cf822e PP |
112 | PROT_READ, MAP_PRIVATE, fileno(ds_file->file->fp), |
113 | ds_file->mmap_offset); | |
114 | if (ds_file->mmap_addr == MAP_FAILED) { | |
1974687e | 115 | BT_LOGE("Cannot memory-map address (size %zu) of file \"%s\" (%p) at offset %jd: %s", |
94cf822e | 116 | ds_file->mmap_len, ds_file->file->path->str, |
1974687e | 117 | ds_file->file->fp, (intmax_t) ds_file->mmap_offset, |
78586d8a | 118 | strerror(errno)); |
e98a2d6e PP |
119 | goto error; |
120 | } | |
121 | ||
122 | goto end; | |
e98a2d6e | 123 | error: |
94cf822e | 124 | ds_file_munmap(ds_file); |
e0f6a64a | 125 | ret = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR; |
e98a2d6e PP |
126 | end: |
127 | return ret; | |
128 | } | |
129 | ||
5b29e799 JG |
130 | static |
131 | enum bt_ctf_notif_iter_medium_status medop_request_bytes( | |
e98a2d6e PP |
132 | size_t request_sz, uint8_t **buffer_addr, |
133 | size_t *buffer_sz, void *data) | |
134 | { | |
135 | enum bt_ctf_notif_iter_medium_status status = | |
136 | BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK; | |
94cf822e | 137 | struct ctf_fs_ds_file *ds_file = data; |
e98a2d6e PP |
138 | |
139 | if (request_sz == 0) { | |
140 | goto end; | |
141 | } | |
142 | ||
e98a2d6e | 143 | /* Check if we have at least one memory-mapped byte left */ |
94cf822e | 144 | if (remaining_mmap_bytes(ds_file) == 0) { |
e98a2d6e | 145 | /* Are we at the end of the file? */ |
94cf822e | 146 | if (ds_file->mmap_offset >= ds_file->file->size) { |
55314f2a | 147 | BT_LOGD("Reached end of file \"%s\" (%p)", |
94cf822e | 148 | ds_file->file->path->str, ds_file->file->fp); |
e98a2d6e PP |
149 | status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF; |
150 | goto end; | |
151 | } | |
152 | ||
94cf822e | 153 | status = ds_file_mmap_next(ds_file); |
e0f6a64a JG |
154 | switch (status) { |
155 | case BT_CTF_NOTIF_ITER_MEDIUM_STATUS_OK: | |
156 | break; | |
157 | case BT_CTF_NOTIF_ITER_MEDIUM_STATUS_EOF: | |
158 | goto end; | |
159 | default: | |
55314f2a | 160 | BT_LOGE("Cannot memory-map next region of file \"%s\" (%p)", |
94cf822e PP |
161 | ds_file->file->path->str, |
162 | ds_file->file->fp); | |
e98a2d6e PP |
163 | goto error; |
164 | } | |
165 | } | |
166 | ||
94cf822e PP |
167 | *buffer_sz = MIN(remaining_mmap_bytes(ds_file), request_sz); |
168 | *buffer_addr = ((uint8_t *) ds_file->mmap_addr) + ds_file->request_offset; | |
169 | ds_file->request_offset += *buffer_sz; | |
e98a2d6e PP |
170 | goto end; |
171 | ||
172 | error: | |
173 | status = BT_CTF_NOTIF_ITER_MEDIUM_STATUS_ERROR; | |
174 | ||
175 | end: | |
176 | return status; | |
177 | } | |
178 | ||
5b29e799 JG |
179 | static |
180 | struct bt_ctf_stream *medop_get_stream( | |
b92735af PP |
181 | struct bt_ctf_stream_class *stream_class, uint64_t stream_id, |
182 | void *data) | |
e98a2d6e | 183 | { |
94cf822e PP |
184 | struct ctf_fs_ds_file *ds_file = data; |
185 | struct bt_ctf_stream_class *ds_file_stream_class; | |
186 | struct bt_ctf_stream *stream = NULL; | |
187 | ||
188 | ds_file_stream_class = bt_ctf_stream_get_class(ds_file->stream); | |
189 | bt_put(ds_file_stream_class); | |
190 | ||
191 | if (stream_class != ds_file_stream_class) { | |
192 | /* | |
193 | * Not supported: two packets described by two different | |
194 | * stream classes within the same data stream file. | |
195 | */ | |
196 | goto end; | |
e98a2d6e PP |
197 | } |
198 | ||
94cf822e PP |
199 | stream = ds_file->stream; |
200 | ||
201 | end: | |
202 | return stream; | |
e98a2d6e PP |
203 | } |
204 | ||
6de92955 PP |
205 | BT_HIDDEN |
206 | struct bt_ctf_notif_iter_medium_ops ctf_fs_ds_file_medops = { | |
e98a2d6e PP |
207 | .request_bytes = medop_request_bytes, |
208 | .get_stream = medop_get_stream, | |
209 | }; | |
6de92955 | 210 | |
97ade20b JG |
211 | static |
212 | struct ctf_fs_ds_index *ctf_fs_ds_index_create(size_t length) | |
213 | { | |
214 | struct ctf_fs_ds_index *index = g_new0(struct ctf_fs_ds_index, 1); | |
215 | ||
216 | if (!index) { | |
217 | BT_LOGE_STR("Failed to allocate index"); | |
218 | goto error; | |
219 | } | |
220 | ||
221 | index->entries = g_array_sized_new(FALSE, TRUE, | |
222 | sizeof(struct ctf_fs_ds_index_entry), length); | |
223 | if (!index->entries) { | |
224 | BT_LOGE("Failed to allocate %zu index entries.", length); | |
225 | goto error; | |
226 | } | |
227 | g_array_set_size(index->entries, length); | |
228 | end: | |
229 | return index; | |
230 | error: | |
231 | ctf_fs_ds_index_destroy(index); | |
232 | goto end; | |
233 | } | |
e98a2d6e | 234 | |
b6c3dcb2 | 235 | static |
97ade20b JG |
236 | struct bt_ctf_clock_class *get_field_mapped_clock_class( |
237 | struct bt_ctf_field *field) | |
238 | { | |
239 | struct bt_ctf_field_type *field_type; | |
240 | struct bt_ctf_clock_class *clock_class = NULL; | |
241 | ||
242 | field_type = bt_ctf_field_get_type(field); | |
243 | if (!field_type) { | |
244 | goto end; | |
245 | } | |
246 | ||
247 | clock_class = bt_ctf_field_type_integer_get_mapped_clock_class( | |
248 | field_type); | |
249 | if (!clock_class) { | |
250 | goto end; | |
251 | } | |
252 | end: | |
253 | bt_put(field_type); | |
254 | return clock_class; | |
255 | } | |
256 | ||
257 | static | |
258 | int get_ds_file_packet_bounds_clock_classes(struct ctf_fs_ds_file *ds_file, | |
259 | struct bt_ctf_clock_class **_timestamp_begin_cc, | |
260 | struct bt_ctf_clock_class **_timestamp_end_cc) | |
261 | { | |
262 | int ret; | |
89b08333 | 263 | struct bt_ctf_field *timestamp_field = NULL; |
97ade20b JG |
264 | struct bt_ctf_field *packet_context_field = NULL; |
265 | struct bt_ctf_clock_class *timestamp_begin_cc = NULL; | |
266 | struct bt_ctf_clock_class *timestamp_end_cc = NULL; | |
267 | ||
268 | ret = ctf_fs_ds_file_get_packet_header_context_fields(ds_file, | |
269 | NULL, &packet_context_field); | |
270 | if (ret || !packet_context_field) { | |
271 | BT_LOGD("Cannot retrieve packet context field of stream \'%s\'", | |
272 | ds_file->file->path->str); | |
273 | ret = -1; | |
274 | goto end; | |
275 | } | |
276 | ||
277 | timestamp_field = bt_ctf_field_structure_get_field_by_name( | |
278 | packet_context_field, "timestamp_begin"); | |
279 | if (!timestamp_field) { | |
280 | BT_LOGD("Cannot retrieve timestamp_begin field in packet context of stream \'%s\'", | |
281 | ds_file->file->path->str); | |
282 | ret = -1; | |
283 | goto end; | |
284 | } | |
285 | ||
286 | timestamp_begin_cc = get_field_mapped_clock_class(timestamp_field); | |
287 | if (!timestamp_begin_cc) { | |
288 | BT_LOGD("Cannot retrieve the clock mapped to timestamp_begin of stream \'%s\'", | |
289 | ds_file->file->path->str); | |
290 | } | |
89b08333 | 291 | BT_PUT(timestamp_field); |
97ade20b JG |
292 | |
293 | timestamp_field = bt_ctf_field_structure_get_field_by_name( | |
294 | packet_context_field, "timestamp_end"); | |
295 | if (!timestamp_field) { | |
296 | BT_LOGD("Cannot retrieve timestamp_end field in packet context of stream \'%s\'", | |
297 | ds_file->file->path->str); | |
298 | ret = -1; | |
299 | goto end; | |
300 | } | |
301 | ||
302 | timestamp_end_cc = get_field_mapped_clock_class(timestamp_field); | |
303 | if (!timestamp_end_cc) { | |
304 | BT_LOGD("Cannot retrieve the clock mapped to timestamp_end in stream \'%s\'", | |
305 | ds_file->file->path->str); | |
306 | } | |
307 | ||
308 | if (_timestamp_begin_cc) { | |
309 | *_timestamp_begin_cc = bt_get(timestamp_begin_cc); | |
310 | } | |
311 | if (_timestamp_end_cc) { | |
312 | *_timestamp_end_cc = bt_get(timestamp_end_cc); | |
313 | } | |
314 | end: | |
315 | bt_put(packet_context_field); | |
316 | bt_put(timestamp_field); | |
317 | bt_put(timestamp_begin_cc); | |
318 | bt_put(timestamp_end_cc); | |
319 | return ret; | |
320 | } | |
321 | ||
322 | static | |
323 | int convert_cycles_to_ns(struct bt_ctf_clock_class *clock_class, | |
324 | uint64_t cycles, int64_t *ns) | |
b6c3dcb2 JG |
325 | { |
326 | int ret = 0; | |
97ade20b JG |
327 | struct bt_ctf_clock_value *clock_value; |
328 | ||
329 | assert(ns); | |
330 | clock_value = bt_ctf_clock_value_create(clock_class, cycles); | |
331 | if (!clock_value) { | |
332 | ret = -1; | |
333 | goto end; | |
334 | } | |
335 | ||
336 | ret = bt_ctf_clock_value_get_value_ns_from_epoch(clock_value, ns); | |
337 | if (ret) { | |
338 | goto end; | |
339 | } | |
340 | end: | |
341 | bt_put(clock_value); | |
342 | return ret; | |
343 | } | |
344 | ||
345 | static | |
346 | struct ctf_fs_ds_index *build_index_from_idx_file( | |
347 | struct ctf_fs_ds_file *ds_file) | |
348 | { | |
349 | int ret; | |
b6c3dcb2 JG |
350 | gchar *directory = NULL; |
351 | gchar *basename = NULL; | |
352 | GString *index_basename = NULL; | |
353 | gchar *index_file_path = NULL; | |
354 | GMappedFile *mapped_file = NULL; | |
355 | gsize filesize; | |
97ade20b JG |
356 | const char *mmap_begin = NULL, *file_pos = NULL; |
357 | const struct ctf_packet_index_file_hdr *header = NULL; | |
358 | struct ctf_fs_ds_index *index = NULL; | |
359 | struct ctf_fs_ds_index_entry *index_entry = NULL; | |
b6c3dcb2 JG |
360 | uint64_t total_packets_size = 0; |
361 | size_t file_index_entry_size; | |
362 | size_t file_entry_count; | |
363 | size_t i; | |
97ade20b JG |
364 | struct bt_ctf_clock_class *timestamp_begin_cc = NULL; |
365 | struct bt_ctf_clock_class *timestamp_end_cc = NULL; | |
366 | ||
367 | BT_LOGD("Building index from .idx file of stream file %s", | |
368 | ds_file->file->path->str); | |
369 | ||
370 | ret = get_ds_file_packet_bounds_clock_classes(ds_file, | |
371 | ×tamp_begin_cc, ×tamp_end_cc); | |
372 | if (ret) { | |
373 | BT_LOGD("Cannot get clock classes of \"timestamp_begin\" and \"timestamp_end\" fields"); | |
374 | goto error; | |
375 | } | |
b6c3dcb2 JG |
376 | |
377 | /* Look for index file in relative path index/name.idx. */ | |
94cf822e | 378 | basename = g_path_get_basename(ds_file->file->path->str); |
b6c3dcb2 | 379 | if (!basename) { |
97ade20b | 380 | BT_LOGE("Cannot get the basename of datastream file %s", |
55314f2a | 381 | ds_file->file->path->str); |
97ade20b | 382 | goto error; |
b6c3dcb2 JG |
383 | } |
384 | ||
94cf822e | 385 | directory = g_path_get_dirname(ds_file->file->path->str); |
b6c3dcb2 | 386 | if (!directory) { |
97ade20b | 387 | BT_LOGE("Cannot get dirname of datastream file %s", |
55314f2a | 388 | ds_file->file->path->str); |
97ade20b | 389 | goto error; |
b6c3dcb2 JG |
390 | } |
391 | ||
392 | index_basename = g_string_new(basename); | |
393 | if (!index_basename) { | |
97ade20b JG |
394 | BT_LOGE("Cannot allocate index file basename string"); |
395 | goto error; | |
b6c3dcb2 JG |
396 | } |
397 | ||
398 | g_string_append(index_basename, ".idx"); | |
399 | index_file_path = g_build_filename(directory, "index", | |
400 | index_basename->str, NULL); | |
401 | mapped_file = g_mapped_file_new(index_file_path, FALSE, NULL); | |
06367fa3 | 402 | if (!mapped_file) { |
97ade20b | 403 | BT_LOGD("Cannot create new mapped file %s", |
55314f2a | 404 | index_file_path); |
97ade20b | 405 | goto error; |
06367fa3 | 406 | } |
d14940a7 JG |
407 | |
408 | /* | |
409 | * The g_mapped_file API limits us to 4GB files on 32-bit. | |
410 | * Traces with such large indexes have never been seen in the wild, | |
411 | * but this would need to be adjusted to support them. | |
412 | */ | |
b6c3dcb2 JG |
413 | filesize = g_mapped_file_get_length(mapped_file); |
414 | if (filesize < sizeof(*header)) { | |
d14940a7 JG |
415 | BT_LOGW("Invalid LTTng trace index file: " |
416 | "file size (%zu bytes) < header size (%zu bytes)", | |
417 | filesize, sizeof(*header)); | |
97ade20b | 418 | goto error; |
b6c3dcb2 JG |
419 | } |
420 | ||
421 | mmap_begin = g_mapped_file_get_contents(mapped_file); | |
422 | header = (struct ctf_packet_index_file_hdr *) mmap_begin; | |
423 | ||
424 | file_pos = g_mapped_file_get_contents(mapped_file) + sizeof(*header); | |
425 | if (be32toh(header->magic) != CTF_INDEX_MAGIC) { | |
d14940a7 | 426 | BT_LOGW("Invalid LTTng trace index: \"magic\" field validation failed"); |
97ade20b | 427 | goto error; |
b6c3dcb2 | 428 | } |
b6c3dcb2 JG |
429 | |
430 | file_index_entry_size = be32toh(header->packet_index_len); | |
431 | file_entry_count = (filesize - sizeof(*header)) / file_index_entry_size; | |
97ade20b | 432 | if ((filesize - sizeof(*header)) % file_index_entry_size) { |
d14940a7 JG |
433 | BT_LOGW("Invalid LTTng trace index: the index's size after the header " |
434 | "(%zu bytes) is not a multiple of the index entry size " | |
435 | "(%zu bytes)", (filesize - sizeof(*header)), | |
436 | sizeof(*header)); | |
97ade20b | 437 | goto error; |
b6c3dcb2 JG |
438 | } |
439 | ||
97ade20b JG |
440 | index = ctf_fs_ds_index_create(file_entry_count); |
441 | if (!index) { | |
442 | goto error; | |
b6c3dcb2 | 443 | } |
97ade20b JG |
444 | |
445 | index_entry = (struct ctf_fs_ds_index_entry *) &g_array_index( | |
446 | index->entries, struct ctf_fs_ds_index_entry, 0); | |
b6c3dcb2 JG |
447 | for (i = 0; i < file_entry_count; i++) { |
448 | struct ctf_packet_index *file_index = | |
449 | (struct ctf_packet_index *) file_pos; | |
450 | uint64_t packet_size = be64toh(file_index->packet_size); | |
451 | ||
452 | if (packet_size % CHAR_BIT) { | |
d14940a7 | 453 | BT_LOGW("Invalid packet size encountered in LTTng trace index file"); |
97ade20b | 454 | goto error; |
b6c3dcb2 JG |
455 | } |
456 | ||
457 | /* Convert size in bits to bytes. */ | |
458 | packet_size /= CHAR_BIT; | |
97ade20b | 459 | index_entry->packet_size = packet_size; |
b6c3dcb2 | 460 | |
97ade20b JG |
461 | index_entry->offset = be64toh(file_index->offset); |
462 | if (i != 0 && index_entry->offset < (index_entry - 1)->offset) { | |
d14940a7 JG |
463 | BT_LOGW("Invalid, non-monotonic, packet offset encountered in LTTng trace index file: " |
464 | "previous offset=%" PRIu64 ", current offset=%" PRIu64, | |
465 | (index_entry - 1)->offset, index_entry->offset); | |
97ade20b | 466 | goto error; |
b6c3dcb2 JG |
467 | } |
468 | ||
97ade20b JG |
469 | index_entry->timestamp_begin = be64toh(file_index->timestamp_begin); |
470 | index_entry->timestamp_end = be64toh(file_index->timestamp_end); | |
471 | if (index_entry->timestamp_end < index_entry->timestamp_begin) { | |
d14940a7 JG |
472 | BT_LOGW("Invalid packet time bounds encountered in LTTng trace index file (begin > end): " |
473 | "timestamp_begin=%" PRIu64 "timestamp_end=%" PRIu64, | |
474 | index_entry->timestamp_begin, | |
475 | index_entry->timestamp_end); | |
97ade20b JG |
476 | goto error; |
477 | } | |
478 | ||
479 | /* Convert the packet's bound to nanoseconds since Epoch. */ | |
480 | ret = convert_cycles_to_ns(timestamp_begin_cc, | |
481 | index_entry->timestamp_begin, | |
482 | &index_entry->timestamp_begin_ns); | |
483 | if (ret) { | |
d14940a7 | 484 | BT_LOGD("Failed to convert raw timestamp to nanoseconds since Epoch during index parsing"); |
97ade20b JG |
485 | goto error; |
486 | } | |
487 | ret = convert_cycles_to_ns(timestamp_end_cc, | |
488 | index_entry->timestamp_end, | |
489 | &index_entry->timestamp_end_ns); | |
490 | if (ret) { | |
d14940a7 | 491 | BT_LOGD("Failed to convert raw timestamp to nanoseconds since Epoch during LTTng trace index parsing"); |
97ade20b | 492 | goto error; |
b6c3dcb2 JG |
493 | } |
494 | ||
495 | total_packets_size += packet_size; | |
496 | file_pos += file_index_entry_size; | |
97ade20b | 497 | index_entry++; |
b6c3dcb2 JG |
498 | } |
499 | ||
500 | /* Validate that the index addresses the complete stream. */ | |
94cf822e | 501 | if (ds_file->file->size != total_packets_size) { |
d14940a7 JG |
502 | BT_LOGW("Invalid LTTng trace index file; indexed size != stream file size: " |
503 | "file_size=%" PRIu64 ", total_packets_size=%" PRIu64, | |
504 | ds_file->file->size, total_packets_size); | |
97ade20b | 505 | goto error; |
b6c3dcb2 JG |
506 | } |
507 | end: | |
508 | g_free(directory); | |
509 | g_free(basename); | |
510 | g_free(index_file_path); | |
06367fa3 JG |
511 | if (index_basename) { |
512 | g_string_free(index_basename, TRUE); | |
513 | } | |
514 | if (mapped_file) { | |
515 | g_mapped_file_unref(mapped_file); | |
516 | } | |
97ade20b JG |
517 | bt_put(timestamp_begin_cc); |
518 | bt_put(timestamp_end_cc); | |
519 | return index; | |
520 | error: | |
521 | ctf_fs_ds_index_destroy(index); | |
522 | index = NULL; | |
b6c3dcb2 JG |
523 | goto end; |
524 | } | |
525 | ||
e7a4393b | 526 | BT_HIDDEN |
94cf822e PP |
527 | struct ctf_fs_ds_file *ctf_fs_ds_file_create( |
528 | struct ctf_fs_trace *ctf_fs_trace, | |
6de92955 | 529 | struct bt_ctf_notif_iter *notif_iter, |
97ade20b | 530 | struct bt_ctf_stream *stream, const char *path) |
e98a2d6e | 531 | { |
b6c3dcb2 | 532 | int ret; |
55314f2a | 533 | const size_t page_size = bt_common_get_page_size(); |
94cf822e | 534 | struct ctf_fs_ds_file *ds_file = g_new0(struct ctf_fs_ds_file, 1); |
e98a2d6e | 535 | |
94cf822e | 536 | if (!ds_file) { |
e98a2d6e PP |
537 | goto error; |
538 | } | |
539 | ||
55314f2a | 540 | ds_file->file = ctf_fs_file_create(); |
94cf822e | 541 | if (!ds_file->file) { |
4f1f88a6 PP |
542 | goto error; |
543 | } | |
544 | ||
94cf822e PP |
545 | ds_file->stream = bt_get(stream); |
546 | ds_file->cc_prio_map = bt_get(ctf_fs_trace->cc_prio_map); | |
547 | g_string_assign(ds_file->file->path, path); | |
55314f2a | 548 | ret = ctf_fs_file_open(ds_file->file, "rb"); |
4f1f88a6 PP |
549 | if (ret) { |
550 | goto error; | |
551 | } | |
552 | ||
6de92955 PP |
553 | ds_file->notif_iter = notif_iter; |
554 | bt_ctf_notif_iter_set_medops_data(ds_file->notif_iter, ds_file); | |
94cf822e | 555 | if (!ds_file->notif_iter) { |
e98a2d6e PP |
556 | goto error; |
557 | } | |
5b29e799 | 558 | |
55314f2a | 559 | ds_file->mmap_max_len = page_size * 2048; |
94cf822e | 560 | |
e98a2d6e | 561 | goto end; |
1a9f7075 | 562 | |
e98a2d6e | 563 | error: |
78586d8a | 564 | /* Do not touch "borrowed" file. */ |
94cf822e PP |
565 | ctf_fs_ds_file_destroy(ds_file); |
566 | ds_file = NULL; | |
1a9f7075 | 567 | |
e98a2d6e | 568 | end: |
94cf822e | 569 | return ds_file; |
e98a2d6e PP |
570 | } |
571 | ||
97ade20b JG |
572 | BT_HIDDEN |
573 | struct ctf_fs_ds_index *ctf_fs_ds_file_build_index( | |
574 | struct ctf_fs_ds_file *ds_file) | |
575 | { | |
576 | return build_index_from_idx_file(ds_file); | |
577 | } | |
578 | ||
5b29e799 | 579 | BT_HIDDEN |
94cf822e | 580 | void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file *ds_file) |
e98a2d6e | 581 | { |
94cf822e | 582 | if (!ds_file) { |
5b29e799 | 583 | return; |
043e2020 JG |
584 | } |
585 | ||
94cf822e PP |
586 | bt_put(ds_file->cc_prio_map); |
587 | bt_put(ds_file->stream); | |
588 | (void) ds_file_munmap(ds_file); | |
0982a26d | 589 | |
94cf822e PP |
590 | if (ds_file->file) { |
591 | ctf_fs_file_destroy(ds_file->file); | |
e98a2d6e PP |
592 | } |
593 | ||
94cf822e | 594 | g_free(ds_file); |
e98a2d6e | 595 | } |
4f1f88a6 PP |
596 | |
597 | BT_HIDDEN | |
94cf822e PP |
598 | struct bt_notification_iterator_next_return ctf_fs_ds_file_next( |
599 | struct ctf_fs_ds_file *ds_file) | |
4f1f88a6 PP |
600 | { |
601 | enum bt_ctf_notif_iter_status notif_iter_status; | |
602 | struct bt_notification_iterator_next_return ret = { | |
603 | .status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR, | |
604 | .notification = NULL, | |
605 | }; | |
606 | ||
8915b7a7 | 607 | notif_iter_status = bt_ctf_notif_iter_get_next_notification( |
94cf822e | 608 | ds_file->notif_iter, ds_file->cc_prio_map, &ret.notification); |
4f1f88a6 | 609 | |
4f1f88a6 PP |
610 | switch (notif_iter_status) { |
611 | case BT_CTF_NOTIF_ITER_STATUS_EOF: | |
612 | ret.status = BT_NOTIFICATION_ITERATOR_STATUS_END; | |
613 | break; | |
614 | case BT_CTF_NOTIF_ITER_STATUS_OK: | |
615 | ret.status = BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
616 | break; | |
617 | case BT_CTF_NOTIF_ITER_STATUS_AGAIN: | |
618 | /* | |
619 | * Should not make it this far as this is | |
620 | * medium-specific; there is nothing for the user to do | |
621 | * and it should have been handled upstream. | |
622 | */ | |
0fbb9a9f | 623 | abort(); |
4f1f88a6 PP |
624 | case BT_CTF_NOTIF_ITER_STATUS_INVAL: |
625 | case BT_CTF_NOTIF_ITER_STATUS_ERROR: | |
626 | default: | |
627 | ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; | |
628 | break; | |
629 | } | |
630 | ||
631 | return ret; | |
632 | } | |
94cf822e PP |
633 | |
634 | BT_HIDDEN | |
635 | int ctf_fs_ds_file_get_packet_header_context_fields( | |
97ade20b | 636 | struct ctf_fs_ds_file *ds_file, |
94cf822e PP |
637 | struct bt_ctf_field **packet_header_field, |
638 | struct bt_ctf_field **packet_context_field) | |
639 | { | |
640 | enum bt_ctf_notif_iter_status notif_iter_status; | |
94cf822e PP |
641 | int ret = 0; |
642 | ||
97ade20b | 643 | assert(ds_file); |
94cf822e PP |
644 | notif_iter_status = bt_ctf_notif_iter_get_packet_header_context_fields( |
645 | ds_file->notif_iter, packet_header_field, packet_context_field); | |
646 | switch (notif_iter_status) { | |
647 | case BT_CTF_NOTIF_ITER_STATUS_EOF: | |
648 | case BT_CTF_NOTIF_ITER_STATUS_OK: | |
649 | break; | |
650 | case BT_CTF_NOTIF_ITER_STATUS_AGAIN: | |
0fbb9a9f | 651 | abort(); |
94cf822e PP |
652 | case BT_CTF_NOTIF_ITER_STATUS_INVAL: |
653 | case BT_CTF_NOTIF_ITER_STATUS_ERROR: | |
654 | default: | |
655 | goto error; | |
656 | break; | |
657 | } | |
658 | ||
659 | goto end; | |
660 | ||
661 | error: | |
662 | ret = -1; | |
663 | ||
664 | if (packet_header_field) { | |
665 | bt_put(*packet_header_field); | |
666 | } | |
667 | ||
668 | if (packet_context_field) { | |
669 | bt_put(*packet_context_field); | |
670 | } | |
671 | ||
672 | end: | |
94cf822e PP |
673 | return ret; |
674 | } | |
97ade20b JG |
675 | |
676 | BT_HIDDEN | |
677 | void ctf_fs_ds_index_destroy(struct ctf_fs_ds_index *index) | |
678 | { | |
679 | if (!index) { | |
680 | return; | |
681 | } | |
682 | ||
683 | if (index->entries) { | |
684 | g_array_free(index->entries, TRUE); | |
685 | } | |
686 | g_free(index); | |
687 | } |