2 * Copyright 2016-2017 - Philippe Proulx <pproulx@efficios.com>
3 * Copyright 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * Copyright 2010-2011 - EfficiOS Inc. and Linux Foundation
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
25 #define BT_COMP_LOG_SELF_COMP (self_comp)
26 #define BT_LOG_OUTPUT_LEVEL (log_level)
27 #define BT_LOG_TAG "PLUGIN/SRC.CTF.FS/DS"
28 #include "logging/comp-logging.h"
36 #include "compat/mman.h"
37 #include "compat/endian.h"
38 #include <babeltrace2/babeltrace.h>
39 #include "common/common.h"
42 #include "../common/msg-iter/msg-iter.h"
43 #include "common/assert.h"
44 #include "data-stream-file.h"
48 size_t remaining_mmap_bytes(struct ctf_fs_ds_file
*ds_file
)
50 BT_ASSERT_DBG(ds_file
->mmap_len
>= ds_file
->request_offset_in_mapping
);
51 return ds_file
->mmap_len
- ds_file
->request_offset_in_mapping
;
55 enum ctf_msg_iter_medium_status
ds_file_munmap(
56 struct ctf_fs_ds_file
*ds_file
)
58 enum ctf_msg_iter_medium_status status
;
59 bt_self_component
*self_comp
= ds_file
->self_comp
;
60 bt_logging_level log_level
= ds_file
->log_level
;
64 if (!ds_file
->mmap_addr
) {
65 status
= CTF_MSG_ITER_MEDIUM_STATUS_OK
;
69 if (bt_munmap(ds_file
->mmap_addr
, ds_file
->mmap_len
)) {
70 BT_COMP_LOGE_ERRNO("Cannot memory-unmap file",
71 ": address=%p, size=%zu, file_path=\"%s\", file=%p",
72 ds_file
->mmap_addr
, ds_file
->mmap_len
,
73 ds_file
->file
? ds_file
->file
->path
->str
: "NULL",
74 ds_file
->file
? ds_file
->file
->fp
: NULL
);
75 status
= CTF_MSG_ITER_MEDIUM_STATUS_ERROR
;
79 ds_file
->mmap_addr
= NULL
;
81 status
= CTF_MSG_ITER_MEDIUM_STATUS_OK
;
87 enum ctf_msg_iter_medium_status
ds_file_mmap_next(
88 struct ctf_fs_ds_file
*ds_file
)
90 enum ctf_msg_iter_medium_status status
;
91 bt_self_component
*self_comp
= ds_file
->self_comp
;
92 bt_logging_level log_level
= ds_file
->log_level
;
94 /* Unmap old region */
95 if (ds_file
->mmap_addr
) {
96 status
= ds_file_munmap(ds_file
);
97 if (status
!= CTF_MSG_ITER_MEDIUM_STATUS_OK
) {
102 * mmap_len is guaranteed to be page-aligned except on the
103 * last mapping where it may not be possible (since the file's
104 * size itself may not be a page multiple).
106 ds_file
->mmap_offset_in_file
+= ds_file
->mmap_len
;
107 ds_file
->request_offset_in_mapping
= 0;
110 ds_file
->mmap_len
= MIN(ds_file
->file
->size
- ds_file
->mmap_offset_in_file
,
111 ds_file
->mmap_max_len
);
112 if (ds_file
->mmap_len
== 0) {
113 status
= CTF_MSG_ITER_MEDIUM_STATUS_EOF
;
117 BT_ASSERT(ds_file
->mmap_len
);
118 ds_file
->mmap_addr
= bt_mmap((void *) 0, ds_file
->mmap_len
,
119 PROT_READ
, MAP_PRIVATE
, fileno(ds_file
->file
->fp
),
120 ds_file
->mmap_offset_in_file
, ds_file
->log_level
);
121 if (ds_file
->mmap_addr
== MAP_FAILED
) {
122 BT_COMP_LOGE("Cannot memory-map address (size %zu) of file \"%s\" (%p) at offset %jd: %s",
123 ds_file
->mmap_len
, ds_file
->file
->path
->str
,
124 ds_file
->file
->fp
, (intmax_t) ds_file
->mmap_offset_in_file
,
126 status
= CTF_MSG_ITER_MEDIUM_STATUS_ERROR
;
130 status
= CTF_MSG_ITER_MEDIUM_STATUS_OK
;
136 enum ctf_msg_iter_medium_status
medop_request_bytes(
137 size_t request_sz
, uint8_t **buffer_addr
,
138 size_t *buffer_sz
, void *data
)
140 enum ctf_msg_iter_medium_status status
=
141 CTF_MSG_ITER_MEDIUM_STATUS_OK
;
142 struct ctf_fs_ds_file
*ds_file
= data
;
143 bt_self_component
*self_comp
= ds_file
->self_comp
;
144 bt_logging_level log_level
= ds_file
->log_level
;
146 BT_ASSERT(request_sz
> 0);
149 * Check if we have at least one memory-mapped byte left. If we don't,
150 * mmap the next file.
152 if (remaining_mmap_bytes(ds_file
) == 0) {
153 /* Are we at the end of the file? */
154 if (ds_file
->mmap_offset_in_file
>= ds_file
->file
->size
) {
155 BT_COMP_LOGD("Reached end of file \"%s\" (%p)",
156 ds_file
->file
->path
->str
, ds_file
->file
->fp
);
157 status
= CTF_MSG_ITER_MEDIUM_STATUS_EOF
;
161 status
= ds_file_mmap_next(ds_file
);
163 case CTF_MSG_ITER_MEDIUM_STATUS_OK
:
165 case CTF_MSG_ITER_MEDIUM_STATUS_EOF
:
168 BT_COMP_LOGE("Cannot memory-map next region of file \"%s\" (%p)",
169 ds_file
->file
->path
->str
,
175 BT_ASSERT(remaining_mmap_bytes(ds_file
) > 0);
176 *buffer_sz
= MIN(remaining_mmap_bytes(ds_file
), request_sz
);
178 BT_ASSERT(ds_file
->mmap_addr
);
179 *buffer_addr
= ((uint8_t *) ds_file
->mmap_addr
) + ds_file
->request_offset_in_mapping
;
181 ds_file
->request_offset_in_mapping
+= *buffer_sz
;
185 status
= CTF_MSG_ITER_MEDIUM_STATUS_ERROR
;
192 bt_stream
*medop_borrow_stream(bt_stream_class
*stream_class
, int64_t stream_id
,
195 struct ctf_fs_ds_file
*ds_file
= data
;
196 bt_stream_class
*ds_file_stream_class
;
197 bt_stream
*stream
= NULL
;
199 ds_file_stream_class
= bt_stream_borrow_class(
202 if (stream_class
!= ds_file_stream_class
) {
204 * Not supported: two packets described by two different
205 * stream classes within the same data stream file.
210 stream
= ds_file
->stream
;
217 enum ctf_msg_iter_medium_status
medop_seek(off_t offset
, void *data
)
219 enum ctf_msg_iter_medium_status status
;
220 struct ctf_fs_ds_file
*ds_file
= data
;
221 off_t offset_in_mapping
, file_size
= ds_file
->file
->size
;
222 bt_self_component
*self_comp
= ds_file
->self_comp
;
223 bt_logging_level log_level
= ds_file
->log_level
;
225 BT_ASSERT(offset
>= 0);
226 BT_ASSERT(offset
< file_size
);
228 /* If there is no current mapping, map the right file directly. */
229 if (!ds_file
->mmap_addr
) {
230 goto map_requested_offset
;
234 * Determine whether or not the destination is contained within the
237 if (offset
< ds_file
->mmap_offset_in_file
||
238 offset
>= ds_file
->mmap_offset_in_file
+ ds_file
->mmap_len
) {
239 BT_COMP_LOGD("Medium seek request cannot be accomodated by the current "
240 "file mapping: offset=%jd, mmap-offset=%jd, "
241 "mmap-len=%zu", (intmax_t) offset
, (intmax_t) ds_file
->mmap_offset_in_file
,
243 status
= ds_file_munmap(ds_file
);
244 if (status
!= CTF_MSG_ITER_MEDIUM_STATUS_OK
) {
247 goto map_requested_offset
;
249 ds_file
->request_offset_in_mapping
= offset
- ds_file
->mmap_offset_in_file
;
250 status
= CTF_MSG_ITER_MEDIUM_STATUS_OK
;
254 map_requested_offset
:
255 offset_in_mapping
= offset
%
256 bt_mmap_get_offset_align_size(ds_file
->log_level
);
258 ds_file
->mmap_offset_in_file
= offset
- offset_in_mapping
;
259 ds_file
->request_offset_in_mapping
= offset_in_mapping
;
260 status
= ds_file_mmap_next(ds_file
);
261 if (status
!= CTF_MSG_ITER_MEDIUM_STATUS_OK
) {
265 status
= CTF_MSG_ITER_MEDIUM_STATUS_OK
;
271 struct ctf_msg_iter_medium_ops ctf_fs_ds_file_medops
= {
272 .request_bytes
= medop_request_bytes
,
273 .borrow_stream
= medop_borrow_stream
,
278 struct ctf_fs_ds_index_entry
*ctf_fs_ds_index_entry_create(
279 bt_self_component
*self_comp
, bt_logging_level log_level
)
281 struct ctf_fs_ds_index_entry
*entry
;
283 entry
= g_new0(struct ctf_fs_ds_index_entry
, 1);
285 BT_COMP_LOGE_APPEND_CAUSE(self_comp
, "Failed to allocate a ctf_fs_ds_index_entry.");
289 entry
->packet_seq_num
= UINT64_MAX
;
296 int convert_cycles_to_ns(struct ctf_clock_class
*clock_class
,
297 uint64_t cycles
, int64_t *ns
)
299 return bt_util_clock_cycles_to_ns_from_origin(cycles
,
300 clock_class
->frequency
, clock_class
->offset_seconds
,
301 clock_class
->offset_cycles
, ns
);
305 struct ctf_fs_ds_index
*build_index_from_idx_file(
306 struct ctf_fs_ds_file
*ds_file
,
307 struct ctf_fs_ds_file_info
*file_info
,
308 struct ctf_msg_iter
*msg_iter
)
311 gchar
*directory
= NULL
;
312 gchar
*basename
= NULL
;
313 GString
*index_basename
= NULL
;
314 gchar
*index_file_path
= NULL
;
315 GMappedFile
*mapped_file
= NULL
;
317 const char *mmap_begin
= NULL
, *file_pos
= NULL
;
318 const struct ctf_packet_index_file_hdr
*header
= NULL
;
319 struct ctf_fs_ds_index
*index
= NULL
;
320 struct ctf_fs_ds_index_entry
*index_entry
= NULL
, *prev_index_entry
= NULL
;
321 uint64_t total_packets_size
= 0;
322 size_t file_index_entry_size
;
323 size_t file_entry_count
;
325 struct ctf_stream_class
*sc
;
326 struct ctf_msg_iter_packet_properties props
;
327 uint32_t version_major
, version_minor
;
328 bt_self_component
*self_comp
= ds_file
->self_comp
;
329 bt_logging_level log_level
= ds_file
->log_level
;
331 BT_COMP_LOGI("Building index from .idx file of stream file %s",
332 ds_file
->file
->path
->str
);
333 ret
= ctf_msg_iter_get_packet_properties(msg_iter
, &props
);
335 BT_COMP_LOGI_STR("Cannot read first packet's header and context fields.");
339 sc
= ctf_trace_class_borrow_stream_class_by_id(ds_file
->metadata
->tc
,
340 props
.stream_class_id
);
342 if (!sc
->default_clock_class
) {
343 BT_COMP_LOGI_STR("Cannot find stream class's default clock class.");
347 /* Look for index file in relative path index/name.idx. */
348 basename
= g_path_get_basename(ds_file
->file
->path
->str
);
350 BT_COMP_LOGE("Cannot get the basename of datastream file %s",
351 ds_file
->file
->path
->str
);
355 directory
= g_path_get_dirname(ds_file
->file
->path
->str
);
357 BT_COMP_LOGE("Cannot get dirname of datastream file %s",
358 ds_file
->file
->path
->str
);
362 index_basename
= g_string_new(basename
);
363 if (!index_basename
) {
364 BT_COMP_LOGE_STR("Cannot allocate index file basename string");
368 g_string_append(index_basename
, ".idx");
369 index_file_path
= g_build_filename(directory
, "index",
370 index_basename
->str
, NULL
);
371 mapped_file
= g_mapped_file_new(index_file_path
, FALSE
, NULL
);
373 BT_COMP_LOGD("Cannot create new mapped file %s",
379 * The g_mapped_file API limits us to 4GB files on 32-bit.
380 * Traces with such large indexes have never been seen in the wild,
381 * but this would need to be adjusted to support them.
383 filesize
= g_mapped_file_get_length(mapped_file
);
384 if (filesize
< sizeof(*header
)) {
385 BT_COMP_LOGW("Invalid LTTng trace index file: "
386 "file size (%zu bytes) < header size (%zu bytes)",
387 filesize
, sizeof(*header
));
391 mmap_begin
= g_mapped_file_get_contents(mapped_file
);
392 header
= (struct ctf_packet_index_file_hdr
*) mmap_begin
;
394 file_pos
= g_mapped_file_get_contents(mapped_file
) + sizeof(*header
);
395 if (be32toh(header
->magic
) != CTF_INDEX_MAGIC
) {
396 BT_COMP_LOGW_STR("Invalid LTTng trace index: \"magic\" field validation failed");
400 version_major
= be32toh(header
->index_major
);
401 version_minor
= be32toh(header
->index_minor
);
402 if (version_major
!= 1) {
404 "Unknown LTTng trace index version: "
405 "major=%" PRIu32
", minor=%" PRIu32
,
406 version_major
, version_minor
);
410 file_index_entry_size
= be32toh(header
->packet_index_len
);
411 file_entry_count
= (filesize
- sizeof(*header
)) / file_index_entry_size
;
412 if ((filesize
- sizeof(*header
)) % file_index_entry_size
) {
413 BT_COMP_LOGW("Invalid LTTng trace index: the index's size after the header "
414 "(%zu bytes) is not a multiple of the index entry size "
415 "(%zu bytes)", (filesize
- sizeof(*header
)),
420 index
= ctf_fs_ds_index_create(ds_file
->log_level
, ds_file
->self_comp
);
425 for (i
= 0; i
< file_entry_count
; i
++) {
426 struct ctf_packet_index
*file_index
=
427 (struct ctf_packet_index
*) file_pos
;
428 uint64_t packet_size
= be64toh(file_index
->packet_size
);
430 if (packet_size
% CHAR_BIT
) {
431 BT_COMP_LOGW("Invalid packet size encountered in LTTng trace index file");
435 index_entry
= ctf_fs_ds_index_entry_create(
436 ds_file
->self_comp
, ds_file
->log_level
);
438 BT_COMP_LOGE_APPEND_CAUSE(ds_file
->self_comp
,
439 "Failed to create a ctf_fs_ds_index_entry.");
443 /* Set path to stream file. */
444 index_entry
->path
= file_info
->path
->str
;
446 /* Convert size in bits to bytes. */
447 packet_size
/= CHAR_BIT
;
448 index_entry
->packet_size
= packet_size
;
450 index_entry
->offset
= be64toh(file_index
->offset
);
451 if (i
!= 0 && index_entry
->offset
< prev_index_entry
->offset
) {
452 BT_COMP_LOGW("Invalid, non-monotonic, packet offset encountered in LTTng trace index file: "
453 "previous offset=%" PRIu64
", current offset=%" PRIu64
,
454 prev_index_entry
->offset
, index_entry
->offset
);
458 index_entry
->timestamp_begin
= be64toh(file_index
->timestamp_begin
);
459 index_entry
->timestamp_end
= be64toh(file_index
->timestamp_end
);
460 if (index_entry
->timestamp_end
< index_entry
->timestamp_begin
) {
461 BT_COMP_LOGW("Invalid packet time bounds encountered in LTTng trace index file (begin > end): "
462 "timestamp_begin=%" PRIu64
"timestamp_end=%" PRIu64
,
463 index_entry
->timestamp_begin
,
464 index_entry
->timestamp_end
);
468 /* Convert the packet's bound to nanoseconds since Epoch. */
469 ret
= convert_cycles_to_ns(sc
->default_clock_class
,
470 index_entry
->timestamp_begin
,
471 &index_entry
->timestamp_begin_ns
);
473 BT_COMP_LOGI_STR("Failed to convert raw timestamp to nanoseconds since Epoch during index parsing");
476 ret
= convert_cycles_to_ns(sc
->default_clock_class
,
477 index_entry
->timestamp_end
,
478 &index_entry
->timestamp_end_ns
);
480 BT_COMP_LOGI_STR("Failed to convert raw timestamp to nanoseconds since Epoch during LTTng trace index parsing");
484 if (version_minor
>= 1) {
485 index_entry
->packet_seq_num
= be64toh(file_index
->packet_seq_num
);
488 total_packets_size
+= packet_size
;
489 file_pos
+= file_index_entry_size
;
491 prev_index_entry
= index_entry
;
493 /* Give ownership of `index_entry` to `index->entries`. */
494 g_ptr_array_add(index
->entries
, index_entry
);
498 /* Validate that the index addresses the complete stream. */
499 if (ds_file
->file
->size
!= total_packets_size
) {
500 BT_COMP_LOGW("Invalid LTTng trace index file; indexed size != stream file size: "
501 "file-size=%" PRIu64
", total-packets-size=%" PRIu64
,
502 ds_file
->file
->size
, total_packets_size
);
508 g_free(index_file_path
);
509 if (index_basename
) {
510 g_string_free(index_basename
, TRUE
);
513 g_mapped_file_unref(mapped_file
);
517 ctf_fs_ds_index_destroy(index
);
524 int init_index_entry(struct ctf_fs_ds_index_entry
*entry
,
525 struct ctf_fs_ds_file
*ds_file
,
526 struct ctf_msg_iter_packet_properties
*props
,
527 off_t packet_size
, off_t packet_offset
)
530 struct ctf_stream_class
*sc
;
531 bt_self_component
*self_comp
= ds_file
->self_comp
;
532 bt_logging_level log_level
= ds_file
->log_level
;
534 sc
= ctf_trace_class_borrow_stream_class_by_id(ds_file
->metadata
->tc
,
535 props
->stream_class_id
);
537 BT_ASSERT(packet_offset
>= 0);
538 entry
->offset
= packet_offset
;
539 BT_ASSERT(packet_size
>= 0);
540 entry
->packet_size
= packet_size
;
542 if (props
->snapshots
.beginning_clock
!= UINT64_C(-1)) {
543 entry
->timestamp_begin
= props
->snapshots
.beginning_clock
;
545 /* Convert the packet's bound to nanoseconds since Epoch. */
546 ret
= convert_cycles_to_ns(sc
->default_clock_class
,
547 props
->snapshots
.beginning_clock
,
548 &entry
->timestamp_begin_ns
);
550 BT_COMP_LOGI_STR("Failed to convert raw timestamp to nanoseconds since Epoch.");
554 entry
->timestamp_begin
= UINT64_C(-1);
555 entry
->timestamp_begin_ns
= UINT64_C(-1);
558 if (props
->snapshots
.end_clock
!= UINT64_C(-1)) {
559 entry
->timestamp_end
= props
->snapshots
.end_clock
;
561 /* Convert the packet's bound to nanoseconds since Epoch. */
562 ret
= convert_cycles_to_ns(sc
->default_clock_class
,
563 props
->snapshots
.end_clock
,
564 &entry
->timestamp_end_ns
);
566 BT_COMP_LOGI_STR("Failed to convert raw timestamp to nanoseconds since Epoch.");
570 entry
->timestamp_end
= UINT64_C(-1);
571 entry
->timestamp_end_ns
= UINT64_C(-1);
579 struct ctf_fs_ds_index
*build_index_from_stream_file(
580 struct ctf_fs_ds_file
*ds_file
,
581 struct ctf_fs_ds_file_info
*file_info
,
582 struct ctf_msg_iter
*msg_iter
)
585 struct ctf_fs_ds_index
*index
= NULL
;
586 enum ctf_msg_iter_status iter_status
= CTF_MSG_ITER_STATUS_OK
;
587 off_t current_packet_offset_bytes
= 0;
588 bt_self_component
*self_comp
= ds_file
->self_comp
;
589 bt_logging_level log_level
= ds_file
->log_level
;
591 BT_COMP_LOGI("Indexing stream file %s", ds_file
->file
->path
->str
);
593 index
= ctf_fs_ds_index_create(ds_file
->log_level
, ds_file
->self_comp
);
599 off_t current_packet_size_bytes
;
600 struct ctf_fs_ds_index_entry
*index_entry
;
601 struct ctf_msg_iter_packet_properties props
;
603 if (current_packet_offset_bytes
< 0) {
604 BT_COMP_LOGE_STR("Cannot get the current packet's offset.");
606 } else if (current_packet_offset_bytes
> ds_file
->file
->size
) {
607 BT_COMP_LOGE_STR("Unexpected current packet's offset (larger than file).");
609 } else if (current_packet_offset_bytes
== ds_file
->file
->size
) {
614 iter_status
= ctf_msg_iter_seek(msg_iter
,
615 current_packet_offset_bytes
);
616 if (iter_status
!= CTF_MSG_ITER_STATUS_OK
) {
620 iter_status
= ctf_msg_iter_get_packet_properties(
622 if (iter_status
!= CTF_MSG_ITER_STATUS_OK
) {
626 if (props
.exp_packet_total_size
>= 0) {
627 current_packet_size_bytes
=
628 (uint64_t) props
.exp_packet_total_size
/ 8;
630 current_packet_size_bytes
= ds_file
->file
->size
;
633 if (current_packet_offset_bytes
+ current_packet_size_bytes
>
634 ds_file
->file
->size
) {
635 BT_COMP_LOGW("Invalid packet size reported in file: stream=\"%s\", "
636 "packet-offset=%jd, packet-size-bytes=%jd, "
638 ds_file
->file
->path
->str
,
639 (intmax_t) current_packet_offset_bytes
,
640 (intmax_t) current_packet_size_bytes
,
641 (intmax_t) ds_file
->file
->size
);
645 index_entry
= ctf_fs_ds_index_entry_create(
646 ds_file
->self_comp
, ds_file
->log_level
);
648 BT_COMP_LOGE_APPEND_CAUSE(ds_file
->self_comp
,
649 "Failed to create a ctf_fs_ds_index_entry.");
653 /* Set path to stream file. */
654 index_entry
->path
= file_info
->path
->str
;
656 ret
= init_index_entry(index_entry
, ds_file
, &props
,
657 current_packet_size_bytes
, current_packet_offset_bytes
);
663 g_ptr_array_add(index
->entries
, index_entry
);
665 current_packet_offset_bytes
+= current_packet_size_bytes
;
666 BT_COMP_LOGD("Seeking to next packet: current-packet-offset=%jd, "
667 "next-packet-offset=%jd",
668 (intmax_t) (current_packet_offset_bytes
- current_packet_size_bytes
),
669 (intmax_t) current_packet_offset_bytes
);
676 ctf_fs_ds_index_destroy(index
);
682 struct ctf_fs_ds_file
*ctf_fs_ds_file_create(
683 struct ctf_fs_trace
*ctf_fs_trace
,
684 bt_self_message_iterator
*self_msg_iter
,
685 bt_stream
*stream
, const char *path
,
686 bt_logging_level log_level
)
689 const size_t offset_align
= bt_mmap_get_offset_align_size(log_level
);
690 struct ctf_fs_ds_file
*ds_file
= g_new0(struct ctf_fs_ds_file
, 1);
696 ds_file
->log_level
= log_level
;
697 ds_file
->self_comp
= ctf_fs_trace
->self_comp
;
698 ds_file
->self_msg_iter
= self_msg_iter
;
699 ds_file
->file
= ctf_fs_file_create(log_level
, ds_file
->self_comp
);
700 if (!ds_file
->file
) {
704 ds_file
->stream
= stream
;
705 bt_stream_get_ref(ds_file
->stream
);
706 ds_file
->metadata
= ctf_fs_trace
->metadata
;
707 g_string_assign(ds_file
->file
->path
, path
);
708 ret
= ctf_fs_file_open(ds_file
->file
, "rb");
713 ds_file
->mmap_max_len
= offset_align
* 2048;
718 /* Do not touch "borrowed" file. */
719 ctf_fs_ds_file_destroy(ds_file
);
727 struct ctf_fs_ds_index
*ctf_fs_ds_file_build_index(
728 struct ctf_fs_ds_file
*ds_file
,
729 struct ctf_fs_ds_file_info
*file_info
,
730 struct ctf_msg_iter
*msg_iter
)
732 struct ctf_fs_ds_index
*index
;
733 bt_self_component
*self_comp
= ds_file
->self_comp
;
734 bt_logging_level log_level
= ds_file
->log_level
;
736 index
= build_index_from_idx_file(ds_file
, file_info
, msg_iter
);
741 BT_COMP_LOGI("Failed to build index from .index file; "
742 "falling back to stream indexing.");
743 index
= build_index_from_stream_file(ds_file
, file_info
, msg_iter
);
749 struct ctf_fs_ds_index
*ctf_fs_ds_index_create(bt_logging_level log_level
,
750 bt_self_component
*self_comp
)
752 struct ctf_fs_ds_index
*index
= g_new0(struct ctf_fs_ds_index
, 1);
755 BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR
, log_level
, self_comp
,
756 "Failed to allocate index");
760 index
->entries
= g_ptr_array_new_with_free_func((GDestroyNotify
) g_free
);
761 if (!index
->entries
) {
762 BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR
, log_level
, self_comp
,
763 "Failed to allocate index entries.");
770 ctf_fs_ds_index_destroy(index
);
777 void ctf_fs_ds_file_destroy(struct ctf_fs_ds_file
*ds_file
)
783 bt_stream_put_ref(ds_file
->stream
);
784 (void) ds_file_munmap(ds_file
);
787 ctf_fs_file_destroy(ds_file
->file
);
794 void ctf_fs_ds_index_destroy(struct ctf_fs_ds_index
*index
)
800 if (index
->entries
) {
801 g_ptr_array_free(index
->entries
, TRUE
);