4 * Babeltrace CTF file system Reader Component
6 * Copyright 2015-2017 Philippe Proulx <pproulx@efficios.com>
7 * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 #define BT_COMP_LOG_SELF_COMP self_comp
29 #define BT_LOG_OUTPUT_LEVEL log_level
30 #define BT_LOG_TAG "PLUGIN/SRC.CTF.FS"
31 #include "logging/comp-logging.h"
33 #include "common/common.h"
34 #include <babeltrace2/babeltrace.h>
35 #include "common/uuid.h"
37 #include "common/assert.h"
42 #include "data-stream-file.h"
44 #include "../common/metadata/decoder.h"
45 #include "../common/metadata/ctf-meta-configure-ir-trace.h"
46 #include "../common/msg-iter/msg-iter.h"
48 #include "plugins/common/param-validation/param-validation.h"
58 int msg_iter_data_set_current_ds_file(struct ctf_fs_msg_iter_data
*msg_iter_data
)
60 struct ctf_fs_ds_file_info
*ds_file_info
;
63 BT_ASSERT(msg_iter_data
->ds_file_info_index
<
64 msg_iter_data
->ds_file_group
->ds_file_infos
->len
);
65 ds_file_info
= g_ptr_array_index(
66 msg_iter_data
->ds_file_group
->ds_file_infos
,
67 msg_iter_data
->ds_file_info_index
);
69 ctf_fs_ds_file_destroy(msg_iter_data
->ds_file
);
70 msg_iter_data
->ds_file
= ctf_fs_ds_file_create(
71 msg_iter_data
->ds_file_group
->ctf_fs_trace
,
72 msg_iter_data
->pc_msg_iter
,
73 msg_iter_data
->msg_iter
,
74 msg_iter_data
->ds_file_group
->stream
,
75 ds_file_info
->path
->str
,
76 msg_iter_data
->log_level
);
77 if (!msg_iter_data
->ds_file
) {
85 void ctf_fs_msg_iter_data_destroy(
86 struct ctf_fs_msg_iter_data
*msg_iter_data
)
92 ctf_fs_ds_file_destroy(msg_iter_data
->ds_file
);
94 if (msg_iter_data
->msg_iter
) {
95 bt_msg_iter_destroy(msg_iter_data
->msg_iter
);
98 g_free(msg_iter_data
);
102 void set_msg_iter_emits_stream_beginning_end_messages(
103 struct ctf_fs_msg_iter_data
*msg_iter_data
)
105 bt_msg_iter_set_emit_stream_beginning_message(
106 msg_iter_data
->ds_file
->msg_iter
,
107 msg_iter_data
->ds_file_info_index
== 0);
108 bt_msg_iter_set_emit_stream_end_message(
109 msg_iter_data
->ds_file
->msg_iter
,
110 msg_iter_data
->ds_file_info_index
==
111 msg_iter_data
->ds_file_group
->ds_file_infos
->len
- 1);
115 bt_component_class_message_iterator_next_method_status
ctf_fs_iterator_next_one(
116 struct ctf_fs_msg_iter_data
*msg_iter_data
,
117 const bt_message
**out_msg
)
119 bt_component_class_message_iterator_next_method_status status
;
121 BT_ASSERT(msg_iter_data
->ds_file
);
126 status
= ctf_fs_ds_file_next(msg_iter_data
->ds_file
, &msg
);
128 case BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK
:
132 case BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_END
:
136 if (msg_iter_data
->ds_file_info_index
==
137 msg_iter_data
->ds_file_group
->ds_file_infos
->len
- 1) {
138 /* End of all group's stream files */
142 msg_iter_data
->ds_file_info_index
++;
143 bt_msg_iter_reset_for_next_stream_file(
144 msg_iter_data
->msg_iter
);
145 set_msg_iter_emits_stream_beginning_end_messages(
149 * Open and start reading the next stream file
150 * within our stream file group.
152 ret
= msg_iter_data_set_current_ds_file(msg_iter_data
);
154 status
= BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_ERROR
;
158 /* Continue the loop to get the next message */
171 bt_component_class_message_iterator_next_method_status
ctf_fs_iterator_next(
172 bt_self_message_iterator
*iterator
,
173 bt_message_array_const msgs
, uint64_t capacity
,
176 bt_component_class_message_iterator_next_method_status status
=
177 BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK
;
178 struct ctf_fs_msg_iter_data
*msg_iter_data
=
179 bt_self_message_iterator_get_data(iterator
);
182 while (i
< capacity
&&
183 status
== BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK
) {
184 status
= ctf_fs_iterator_next_one(msg_iter_data
, &msgs
[i
]);
185 if (status
== BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK
) {
192 * Even if ctf_fs_iterator_next_one() returned something
193 * else than BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK, we
194 * accumulated message objects in the output
195 * message array, so we need to return
196 * BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK so that they are
197 * transfered to downstream. This other status occurs
198 * again the next time muxer_msg_iter_do_next() is
199 * called, possibly without any accumulated
200 * message, in which case we'll return it.
203 status
= BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK
;
210 int ctf_fs_iterator_reset(struct ctf_fs_msg_iter_data
*msg_iter_data
)
214 msg_iter_data
->ds_file_info_index
= 0;
215 ret
= msg_iter_data_set_current_ds_file(msg_iter_data
);
220 bt_msg_iter_reset(msg_iter_data
->msg_iter
);
221 set_msg_iter_emits_stream_beginning_end_messages(msg_iter_data
);
228 bt_component_class_message_iterator_seek_beginning_method_status
229 ctf_fs_iterator_seek_beginning(bt_self_message_iterator
*it
)
231 struct ctf_fs_msg_iter_data
*msg_iter_data
=
232 bt_self_message_iterator_get_data(it
);
233 bt_component_class_message_iterator_seek_beginning_method_status status
=
234 BT_COMPONENT_CLASS_MESSAGE_ITERATOR_SEEK_BEGINNING_METHOD_STATUS_OK
;
236 BT_ASSERT(msg_iter_data
);
237 if (ctf_fs_iterator_reset(msg_iter_data
)) {
238 status
= BT_COMPONENT_CLASS_MESSAGE_ITERATOR_SEEK_BEGINNING_METHOD_STATUS_ERROR
;
245 void ctf_fs_iterator_finalize(bt_self_message_iterator
*it
)
247 ctf_fs_msg_iter_data_destroy(
248 bt_self_message_iterator_get_data(it
));
252 bt_component_class_message_iterator_initialize_method_status
ctf_fs_iterator_init(
253 bt_self_message_iterator
*self_msg_iter
,
254 bt_self_message_iterator_configuration
*config
,
255 bt_self_component_source
*self_comp_src
,
256 bt_self_component_port_output
*self_port
)
258 struct ctf_fs_port_data
*port_data
;
259 struct ctf_fs_msg_iter_data
*msg_iter_data
= NULL
;
260 bt_component_class_message_iterator_initialize_method_status ret
=
261 BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INITIALIZE_METHOD_STATUS_OK
;
262 bt_logging_level log_level
;
263 bt_self_component
*self_comp
=
264 bt_self_component_source_as_self_component(self_comp_src
);
266 port_data
= bt_self_component_port_get_data(
267 bt_self_component_port_output_as_self_component_port(
269 BT_ASSERT(port_data
);
270 log_level
= port_data
->ctf_fs
->log_level
;
271 msg_iter_data
= g_new0(struct ctf_fs_msg_iter_data
, 1);
272 if (!msg_iter_data
) {
273 ret
= BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INITIALIZE_METHOD_STATUS_MEMORY_ERROR
;
277 msg_iter_data
->log_level
= log_level
;
278 msg_iter_data
->self_comp
= self_comp
;
279 msg_iter_data
->pc_msg_iter
= self_msg_iter
;
280 msg_iter_data
->msg_iter
= bt_msg_iter_create(
281 port_data
->ds_file_group
->ctf_fs_trace
->metadata
->tc
,
282 bt_common_get_page_size(msg_iter_data
->log_level
) * 8,
283 ctf_fs_ds_file_medops
, NULL
, msg_iter_data
->log_level
,
285 if (!msg_iter_data
->msg_iter
) {
286 BT_COMP_LOGE_APPEND_CAUSE(self_comp
, "Cannot create a CTF message iterator.");
287 ret
= BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INITIALIZE_METHOD_STATUS_MEMORY_ERROR
;
291 msg_iter_data
->ds_file_group
= port_data
->ds_file_group
;
292 if (ctf_fs_iterator_reset(msg_iter_data
)) {
293 ret
= BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INITIALIZE_METHOD_STATUS_ERROR
;
298 * This iterator can seek forward if its stream class has a default
301 if (msg_iter_data
->ds_file_group
->sc
->default_clock_class
) {
302 bt_self_message_iterator_configuration_set_can_seek_forward(
306 bt_self_message_iterator_set_data(self_msg_iter
,
308 if (ret
!= BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INITIALIZE_METHOD_STATUS_OK
) {
311 msg_iter_data
= NULL
;
315 bt_self_message_iterator_set_data(self_msg_iter
, NULL
);
318 ctf_fs_msg_iter_data_destroy(msg_iter_data
);
323 void ctf_fs_trace_destroy(struct ctf_fs_trace
*ctf_fs_trace
)
329 if (ctf_fs_trace
->ds_file_groups
) {
330 g_ptr_array_free(ctf_fs_trace
->ds_file_groups
, TRUE
);
333 BT_TRACE_PUT_REF_AND_RESET(ctf_fs_trace
->trace
);
335 if (ctf_fs_trace
->path
) {
336 g_string_free(ctf_fs_trace
->path
, TRUE
);
339 if (ctf_fs_trace
->metadata
) {
340 ctf_fs_metadata_fini(ctf_fs_trace
->metadata
);
341 g_free(ctf_fs_trace
->metadata
);
344 g_free(ctf_fs_trace
);
348 void ctf_fs_destroy(struct ctf_fs_component
*ctf_fs
)
354 ctf_fs_trace_destroy(ctf_fs
->trace
);
356 if (ctf_fs
->port_data
) {
357 g_ptr_array_free(ctf_fs
->port_data
, TRUE
);
364 void port_data_destroy(struct ctf_fs_port_data
*port_data
)
374 void port_data_destroy_notifier(void *data
) {
375 port_data_destroy(data
);
379 void ctf_fs_trace_destroy_notifier(void *data
)
381 struct ctf_fs_trace
*trace
= data
;
382 ctf_fs_trace_destroy(trace
);
385 struct ctf_fs_component
*ctf_fs_component_create(bt_logging_level log_level
,
386 bt_self_component
*self_comp
)
388 struct ctf_fs_component
*ctf_fs
;
390 ctf_fs
= g_new0(struct ctf_fs_component
, 1);
395 ctf_fs
->log_level
= log_level
;
397 g_ptr_array_new_with_free_func(port_data_destroy_notifier
);
398 if (!ctf_fs
->port_data
) {
405 ctf_fs_destroy(ctf_fs
);
412 void ctf_fs_finalize(bt_self_component_source
*component
)
414 ctf_fs_destroy(bt_self_component_get_data(
415 bt_self_component_source_as_self_component(component
)));
418 gchar
*ctf_fs_make_port_name(struct ctf_fs_ds_file_group
*ds_file_group
)
420 GString
*name
= g_string_new(NULL
);
423 * The unique port name is generated by concatenating unique identifiers
431 /* For the trace, use the uuid if present, else the path. */
432 if (ds_file_group
->ctf_fs_trace
->metadata
->tc
->is_uuid_set
) {
433 char uuid_str
[BT_UUID_STR_LEN
+ 1];
435 bt_uuid_to_str(ds_file_group
->ctf_fs_trace
->metadata
->tc
->uuid
, uuid_str
);
436 g_string_assign(name
, uuid_str
);
438 g_string_assign(name
, ds_file_group
->ctf_fs_trace
->path
->str
);
442 * For the stream class, use the id if present. We can omit this field
443 * otherwise, as there will only be a single stream class.
445 if (ds_file_group
->sc
->id
!= UINT64_C(-1)) {
446 g_string_append_printf(name
, " | %" PRIu64
, ds_file_group
->sc
->id
);
449 /* For the stream, use the id if present, else, use the path. */
450 if (ds_file_group
->stream_id
!= UINT64_C(-1)) {
451 g_string_append_printf(name
, " | %" PRIu64
, ds_file_group
->stream_id
);
453 BT_ASSERT(ds_file_group
->ds_file_infos
->len
== 1);
454 struct ctf_fs_ds_file_info
*ds_file_info
=
455 g_ptr_array_index(ds_file_group
->ds_file_infos
, 0);
456 g_string_append_printf(name
, " | %s", ds_file_info
->path
->str
);
459 return g_string_free(name
, FALSE
);
463 int create_one_port_for_trace(struct ctf_fs_component
*ctf_fs
,
464 struct ctf_fs_trace
*ctf_fs_trace
,
465 struct ctf_fs_ds_file_group
*ds_file_group
,
466 bt_self_component_source
*self_comp_src
)
469 struct ctf_fs_port_data
*port_data
= NULL
;
471 bt_logging_level log_level
= ctf_fs
->log_level
;
472 bt_self_component
*self_comp
=
473 bt_self_component_source_as_self_component(self_comp_src
);
475 port_name
= ctf_fs_make_port_name(ds_file_group
);
480 BT_COMP_LOGI("Creating one port named `%s`", port_name
);
482 /* Create output port for this file */
483 port_data
= g_new0(struct ctf_fs_port_data
, 1);
488 port_data
->ctf_fs
= ctf_fs
;
489 port_data
->ds_file_group
= ds_file_group
;
490 ret
= bt_self_component_source_add_output_port(
491 self_comp_src
, port_name
, port_data
, NULL
);
496 g_ptr_array_add(ctf_fs
->port_data
, port_data
);
506 port_data_destroy(port_data
);
511 int create_ports_for_trace(struct ctf_fs_component
*ctf_fs
,
512 struct ctf_fs_trace
*ctf_fs_trace
,
513 bt_self_component_source
*self_comp_src
)
517 bt_logging_level log_level
= ctf_fs_trace
->log_level
;
518 bt_self_component
*self_comp
=
519 bt_self_component_source_as_self_component(self_comp_src
);
521 /* Create one output port for each stream file group */
522 for (i
= 0; i
< ctf_fs_trace
->ds_file_groups
->len
; i
++) {
523 struct ctf_fs_ds_file_group
*ds_file_group
=
524 g_ptr_array_index(ctf_fs_trace
->ds_file_groups
, i
);
526 ret
= create_one_port_for_trace(ctf_fs
, ctf_fs_trace
,
527 ds_file_group
, self_comp_src
);
529 BT_COMP_LOGE_APPEND_CAUSE(self_comp
, "Cannot create output port.");
539 void ctf_fs_ds_file_info_destroy(struct ctf_fs_ds_file_info
*ds_file_info
)
545 if (ds_file_info
->path
) {
546 g_string_free(ds_file_info
->path
, TRUE
);
549 g_free(ds_file_info
);
553 struct ctf_fs_ds_file_info
*ctf_fs_ds_file_info_create(const char *path
,
556 struct ctf_fs_ds_file_info
*ds_file_info
;
558 ds_file_info
= g_new0(struct ctf_fs_ds_file_info
, 1);
563 ds_file_info
->path
= g_string_new(path
);
564 if (!ds_file_info
->path
) {
565 ctf_fs_ds_file_info_destroy(ds_file_info
);
570 ds_file_info
->begin_ns
= begin_ns
;
577 void ctf_fs_ds_file_group_destroy(struct ctf_fs_ds_file_group
*ds_file_group
)
579 if (!ds_file_group
) {
583 if (ds_file_group
->ds_file_infos
) {
584 g_ptr_array_free(ds_file_group
->ds_file_infos
, TRUE
);
587 if (ds_file_group
->index
) {
588 if (ds_file_group
->index
->entries
) {
589 g_ptr_array_free(ds_file_group
->index
->entries
, TRUE
);
591 g_free(ds_file_group
->index
);
594 bt_stream_put_ref(ds_file_group
->stream
);
595 g_free(ds_file_group
);
599 struct ctf_fs_ds_file_group
*ctf_fs_ds_file_group_create(
600 struct ctf_fs_trace
*ctf_fs_trace
,
601 struct ctf_stream_class
*sc
,
602 uint64_t stream_instance_id
,
603 struct ctf_fs_ds_index
*index
)
605 struct ctf_fs_ds_file_group
*ds_file_group
;
607 ds_file_group
= g_new0(struct ctf_fs_ds_file_group
, 1);
608 if (!ds_file_group
) {
612 ds_file_group
->ds_file_infos
= g_ptr_array_new_with_free_func(
613 (GDestroyNotify
) ctf_fs_ds_file_info_destroy
);
614 if (!ds_file_group
->ds_file_infos
) {
618 ds_file_group
->index
= index
;
620 ds_file_group
->stream_id
= stream_instance_id
;
622 ds_file_group
->sc
= sc
;
623 ds_file_group
->ctf_fs_trace
= ctf_fs_trace
;
627 ctf_fs_ds_file_group_destroy(ds_file_group
);
628 ctf_fs_ds_index_destroy(index
);
629 ds_file_group
= NULL
;
632 return ds_file_group
;
635 /* Replace by g_ptr_array_insert when we depend on glib >= 2.40. */
637 void array_insert(GPtrArray
*array
, gpointer element
, size_t pos
)
639 size_t original_array_len
= array
->len
;
641 /* Allocate an unused element at the end of the array. */
642 g_ptr_array_add(array
, NULL
);
644 /* If we are not inserting at the end, move the elements by one. */
645 if (pos
< original_array_len
) {
646 memmove(&(array
->pdata
[pos
+ 1]),
647 &(array
->pdata
[pos
]),
648 (original_array_len
- pos
) * sizeof(gpointer
));
651 /* Insert the value. */
652 array
->pdata
[pos
] = element
;
656 * Insert ds_file_info in ds_file_group's list of ds_file_infos at the right
657 * place to keep it sorted.
661 void ds_file_group_insert_ds_file_info_sorted(
662 struct ctf_fs_ds_file_group
*ds_file_group
,
663 struct ctf_fs_ds_file_info
*ds_file_info
)
667 /* Find the spot where to insert this ds_file_info. */
668 for (i
= 0; i
< ds_file_group
->ds_file_infos
->len
; i
++) {
669 struct ctf_fs_ds_file_info
*other_ds_file_info
=
670 g_ptr_array_index(ds_file_group
->ds_file_infos
, i
);
672 if (ds_file_info
->begin_ns
< other_ds_file_info
->begin_ns
) {
677 array_insert(ds_file_group
->ds_file_infos
, ds_file_info
, i
);
681 void ds_file_group_insert_ds_index_entry_sorted(
682 struct ctf_fs_ds_file_group
*ds_file_group
,
683 struct ctf_fs_ds_index_entry
*entry
)
687 /* Find the spot where to insert this index entry. */
688 for (i
= 0; i
< ds_file_group
->index
->entries
->len
; i
++) {
689 struct ctf_fs_ds_index_entry
*other_entry
= g_ptr_array_index(
690 ds_file_group
->index
->entries
, i
);
692 if (entry
->timestamp_begin_ns
< other_entry
->timestamp_begin_ns
) {
697 array_insert(ds_file_group
->index
->entries
, entry
, i
);
701 int add_ds_file_to_ds_file_group(struct ctf_fs_trace
*ctf_fs_trace
,
704 int64_t stream_instance_id
= -1;
705 int64_t begin_ns
= -1;
706 struct ctf_fs_ds_file_group
*ds_file_group
= NULL
;
707 bool add_group
= false;
710 struct ctf_fs_ds_file
*ds_file
= NULL
;
711 struct ctf_fs_ds_file_info
*ds_file_info
= NULL
;
712 struct ctf_fs_ds_index
*index
= NULL
;
713 struct bt_msg_iter
*msg_iter
= NULL
;
714 struct ctf_stream_class
*sc
= NULL
;
715 struct bt_msg_iter_packet_properties props
;
716 bt_logging_level log_level
= ctf_fs_trace
->log_level
;
717 bt_self_component
*self_comp
= ctf_fs_trace
->self_comp
;
719 msg_iter
= bt_msg_iter_create(ctf_fs_trace
->metadata
->tc
,
720 bt_common_get_page_size(log_level
) * 8,
721 ctf_fs_ds_file_medops
, NULL
, log_level
, self_comp
);
723 BT_COMP_LOGE_STR("Cannot create a CTF message iterator.");
727 ds_file
= ctf_fs_ds_file_create(ctf_fs_trace
, NULL
, msg_iter
,
728 NULL
, path
, log_level
);
733 ret
= bt_msg_iter_get_packet_properties(ds_file
->msg_iter
, &props
);
735 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
736 "Cannot get stream file's first packet's header and context fields (`%s`).",
741 sc
= ctf_trace_class_borrow_stream_class_by_id(ds_file
->metadata
->tc
,
742 props
.stream_class_id
);
744 stream_instance_id
= props
.data_stream_id
;
746 if (props
.snapshots
.beginning_clock
!= UINT64_C(-1)) {
747 BT_ASSERT(sc
->default_clock_class
);
748 ret
= bt_util_clock_cycles_to_ns_from_origin(
749 props
.snapshots
.beginning_clock
,
750 sc
->default_clock_class
->frequency
,
751 sc
->default_clock_class
->offset_seconds
,
752 sc
->default_clock_class
->offset_cycles
, &begin_ns
);
754 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
755 "Cannot convert clock cycles to nanoseconds from origin (`%s`).",
761 ds_file_info
= ctf_fs_ds_file_info_create(path
, begin_ns
);
766 index
= ctf_fs_ds_file_build_index(ds_file
, ds_file_info
);
768 BT_COMP_LOGW("Failed to index CTF stream file \'%s\'",
769 ds_file
->file
->path
->str
);
772 if (begin_ns
== -1) {
774 * No beggining timestamp to sort the stream files
775 * within a stream file group, so consider that this
776 * file must be the only one within its group.
778 stream_instance_id
= -1;
781 if (stream_instance_id
== -1) {
783 * No stream instance ID or no beginning timestamp:
784 * create a unique stream file group for this stream
785 * file because, even if there's a stream instance ID,
786 * there's no timestamp to order the file within its
789 ds_file_group
= ctf_fs_ds_file_group_create(ctf_fs_trace
,
790 sc
, UINT64_C(-1), index
);
791 /* Ownership of index is transferred. */
794 if (!ds_file_group
) {
798 ds_file_group_insert_ds_file_info_sorted(ds_file_group
, ds_file_info
);
804 BT_ASSERT(stream_instance_id
!= -1);
805 BT_ASSERT(begin_ns
!= -1);
807 /* Find an existing stream file group with this ID */
808 for (i
= 0; i
< ctf_fs_trace
->ds_file_groups
->len
; i
++) {
809 ds_file_group
= g_ptr_array_index(
810 ctf_fs_trace
->ds_file_groups
, i
);
812 if (ds_file_group
->sc
== sc
&&
813 ds_file_group
->stream_id
==
814 stream_instance_id
) {
818 ds_file_group
= NULL
;
821 if (!ds_file_group
) {
822 ds_file_group
= ctf_fs_ds_file_group_create(ctf_fs_trace
,
823 sc
, stream_instance_id
, index
);
824 /* Ownership of index is transferred. */
826 if (!ds_file_group
) {
833 ds_file_group_insert_ds_file_info_sorted(ds_file_group
, ds_file_info
);
838 ctf_fs_ds_file_group_destroy(ds_file_group
);
839 ds_file_group
= NULL
;
843 if (add_group
&& ds_file_group
) {
844 g_ptr_array_add(ctf_fs_trace
->ds_file_groups
, ds_file_group
);
847 ctf_fs_ds_file_destroy(ds_file
);
850 bt_msg_iter_destroy(msg_iter
);
853 ctf_fs_ds_index_destroy(index
);
858 int create_ds_file_groups(struct ctf_fs_trace
*ctf_fs_trace
)
861 const char *basename
;
862 GError
*error
= NULL
;
864 bt_logging_level log_level
= ctf_fs_trace
->log_level
;
865 bt_self_component
*self_comp
= ctf_fs_trace
->self_comp
;
867 /* Check each file in the path directory, except specific ones */
868 dir
= g_dir_open(ctf_fs_trace
->path
->str
, 0, &error
);
870 BT_COMP_LOGE_APPEND_CAUSE(self_comp
, "Cannot open directory `%s`: %s (code %d)",
871 ctf_fs_trace
->path
->str
, error
->message
,
876 while ((basename
= g_dir_read_name(dir
))) {
877 struct ctf_fs_file
*file
;
879 if (strcmp(basename
, CTF_FS_METADATA_FILENAME
) == 0) {
880 /* Ignore the metadata stream. */
881 BT_COMP_LOGI("Ignoring metadata file `%s" G_DIR_SEPARATOR_S
"%s`",
882 ctf_fs_trace
->path
->str
, basename
);
886 if (basename
[0] == '.') {
887 BT_COMP_LOGI("Ignoring hidden file `%s" G_DIR_SEPARATOR_S
"%s`",
888 ctf_fs_trace
->path
->str
, basename
);
892 /* Create the file. */
893 file
= ctf_fs_file_create(log_level
, self_comp
);
895 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
896 "Cannot create stream file object for file `%s" G_DIR_SEPARATOR_S
"%s`",
897 ctf_fs_trace
->path
->str
, basename
);
901 /* Create full path string. */
902 g_string_append_printf(file
->path
, "%s" G_DIR_SEPARATOR_S
"%s",
903 ctf_fs_trace
->path
->str
, basename
);
904 if (!g_file_test(file
->path
->str
, G_FILE_TEST_IS_REGULAR
)) {
905 BT_COMP_LOGI("Ignoring non-regular file `%s`",
907 ctf_fs_file_destroy(file
);
912 ret
= ctf_fs_file_open(file
, "rb");
914 BT_COMP_LOGE_APPEND_CAUSE(self_comp
, "Cannot open stream file `%s`",
919 if (file
->size
== 0) {
920 /* Skip empty stream. */
921 BT_COMP_LOGI("Ignoring empty file `%s`", file
->path
->str
);
922 ctf_fs_file_destroy(file
);
926 ret
= add_ds_file_to_ds_file_group(ctf_fs_trace
,
929 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
930 "Cannot add stream file `%s` to stream file group",
932 ctf_fs_file_destroy(file
);
936 ctf_fs_file_destroy(file
);
958 int set_trace_name(bt_trace
*trace
, const char *name_suffix
,
959 bt_logging_level log_level
, bt_self_component
*self_comp
)
965 name
= g_string_new(NULL
);
967 BT_COMP_LOGE_STR("Failed to allocate a GString.");
973 * Check if we have a trace environment string value named `hostname`.
974 * If so, use it as the trace name's prefix.
976 val
= bt_trace_borrow_environment_entry_value_by_name_const(
978 if (val
&& bt_value_is_string(val
)) {
979 g_string_append(name
, bt_value_string_get(val
));
982 g_string_append_c(name
, G_DIR_SEPARATOR
);
987 g_string_append(name
, name_suffix
);
990 ret
= bt_trace_set_name(trace
, name
->str
);
999 g_string_free(name
, TRUE
);
1006 struct ctf_fs_trace
*ctf_fs_trace_create(bt_self_component
*self_comp
,
1007 const char *path
, const char *name
,
1008 struct ctf_fs_metadata_config
*metadata_config
,
1009 bt_logging_level log_level
)
1011 struct ctf_fs_trace
*ctf_fs_trace
;
1014 ctf_fs_trace
= g_new0(struct ctf_fs_trace
, 1);
1015 if (!ctf_fs_trace
) {
1019 ctf_fs_trace
->log_level
= log_level
;
1020 ctf_fs_trace
->self_comp
= self_comp
;
1021 ctf_fs_trace
->path
= g_string_new(path
);
1022 if (!ctf_fs_trace
->path
) {
1026 ctf_fs_trace
->metadata
= g_new0(struct ctf_fs_metadata
, 1);
1027 if (!ctf_fs_trace
->metadata
) {
1031 ctf_fs_metadata_init(ctf_fs_trace
->metadata
);
1032 ctf_fs_trace
->ds_file_groups
= g_ptr_array_new_with_free_func(
1033 (GDestroyNotify
) ctf_fs_ds_file_group_destroy
);
1034 if (!ctf_fs_trace
->ds_file_groups
) {
1038 ret
= ctf_fs_metadata_set_trace_class(self_comp
, ctf_fs_trace
,
1044 if (ctf_fs_trace
->metadata
->trace_class
) {
1045 ctf_fs_trace
->trace
=
1046 bt_trace_create(ctf_fs_trace
->metadata
->trace_class
);
1047 if (!ctf_fs_trace
->trace
) {
1052 if (ctf_fs_trace
->trace
) {
1053 ret
= ctf_trace_class_configure_ir_trace(
1054 ctf_fs_trace
->metadata
->tc
, ctf_fs_trace
->trace
);
1059 ret
= set_trace_name(ctf_fs_trace
->trace
, name
, log_level
,
1066 ret
= create_ds_file_groups(ctf_fs_trace
);
1074 ctf_fs_trace_destroy(ctf_fs_trace
);
1075 ctf_fs_trace
= NULL
;
1078 return ctf_fs_trace
;
1082 int path_is_ctf_trace(const char *path
)
1084 GString
*metadata_path
= g_string_new(NULL
);
1087 if (!metadata_path
) {
1092 g_string_printf(metadata_path
, "%s" G_DIR_SEPARATOR_S
"%s", path
, CTF_FS_METADATA_FILENAME
);
1094 if (g_file_test(metadata_path
->str
, G_FILE_TEST_IS_REGULAR
)) {
1100 g_string_free(metadata_path
, TRUE
);
1104 /* Helper for ctf_fs_component_create_ctf_fs_trace, to handle a single path. */
1107 int ctf_fs_component_create_ctf_fs_trace_one_path(
1108 struct ctf_fs_component
*ctf_fs
,
1109 const char *path_param
,
1110 const char *trace_name
,
1112 bt_self_component
*self_comp
,
1113 bt_self_component_class
*self_comp_class
)
1115 struct ctf_fs_trace
*ctf_fs_trace
;
1118 bt_logging_level log_level
= ctf_fs
->log_level
;
1120 norm_path
= bt_common_normalize_path(path_param
, NULL
);
1122 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
1123 "Failed to normalize path: `%s`.", path_param
);
1127 ret
= path_is_ctf_trace(norm_path
->str
);
1129 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
1130 "Failed to check if path is a CTF trace: path=%s", norm_path
->str
);
1132 } else if (ret
== 0) {
1133 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
1134 "Path is not a CTF trace (does not contain a metadata file): `%s`.", norm_path
->str
);
1138 // FIXME: Remove or ifdef for __MINGW32__
1139 if (strcmp(norm_path
->str
, "/") == 0) {
1140 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
1141 "Opening a trace in `/` is not supported.");
1146 ctf_fs_trace
= ctf_fs_trace_create(self_comp
, norm_path
->str
,
1147 trace_name
, &ctf_fs
->metadata_config
, log_level
);
1148 if (!ctf_fs_trace
) {
1149 BT_COMP_LOGE_APPEND_CAUSE(self_comp
, "Cannot create trace for `%s`.",
1154 g_ptr_array_add(traces
, ctf_fs_trace
);
1155 ctf_fs_trace
= NULL
;
1165 g_string_free(norm_path
, TRUE
);
1172 * Count the number of stream and event classes defined by this trace's metadata.
1174 * This is used to determine which metadata is the "latest", out of multiple
1175 * traces sharing the same UUID. It is assumed that amongst all these metadatas,
1176 * a bigger metadata is a superset of a smaller metadata. Therefore, it is
1177 * enough to just count the classes.
1181 unsigned int metadata_count_stream_and_event_classes(struct ctf_fs_trace
*trace
)
1183 unsigned int num
= trace
->metadata
->tc
->stream_classes
->len
;
1186 for (i
= 0; i
< trace
->metadata
->tc
->stream_classes
->len
; i
++) {
1187 struct ctf_stream_class
*sc
= trace
->metadata
->tc
->stream_classes
->pdata
[i
];
1188 num
+= sc
->event_classes
->len
;
1195 * Merge the src ds_file_group into dest. This consists of merging their
1196 * ds_file_infos, making sure to keep the result sorted.
1200 void merge_ctf_fs_ds_file_groups(struct ctf_fs_ds_file_group
*dest
, struct ctf_fs_ds_file_group
*src
)
1204 for (i
= 0; i
< src
->ds_file_infos
->len
; i
++) {
1205 struct ctf_fs_ds_file_info
*ds_file_info
=
1206 g_ptr_array_index(src
->ds_file_infos
, i
);
1208 /* Ownership of the ds_file_info is transferred to dest. */
1209 g_ptr_array_index(src
->ds_file_infos
, i
) = NULL
;
1211 ds_file_group_insert_ds_file_info_sorted(dest
, ds_file_info
);
1214 /* Merge both indexes. */
1215 for (i
= 0; i
< src
->index
->entries
->len
; i
++) {
1216 struct ctf_fs_ds_index_entry
*entry
= g_ptr_array_index(
1217 src
->index
->entries
, i
);
1220 * Ownership of the ctf_fs_ds_index_entry is transferred to
1223 g_ptr_array_index(src
->index
->entries
, i
) = NULL
;
1225 ds_file_group_insert_ds_index_entry_sorted(dest
, entry
);
1228 /* Merge src_trace's data stream file groups into dest_trace's. */
1231 int merge_matching_ctf_fs_ds_file_groups(
1232 struct ctf_fs_trace
*dest_trace
,
1233 struct ctf_fs_trace
*src_trace
)
1236 GPtrArray
*dest
= dest_trace
->ds_file_groups
;
1237 GPtrArray
*src
= src_trace
->ds_file_groups
;
1242 * Save the initial length of dest: we only want to check against the
1243 * original elements in the inner loop.
1245 const guint dest_len
= dest
->len
;
1247 for (s_i
= 0; s_i
< src
->len
; s_i
++) {
1248 struct ctf_fs_ds_file_group
*src_group
= g_ptr_array_index(src
, s_i
);
1249 struct ctf_fs_ds_file_group
*dest_group
= NULL
;
1251 /* A stream instance without ID can't match a stream in the other trace. */
1252 if (src_group
->stream_id
!= -1) {
1255 /* Let's search for a matching ds_file_group in the destination. */
1256 for (d_i
= 0; d_i
< dest_len
; d_i
++) {
1257 struct ctf_fs_ds_file_group
*candidate_dest
= g_ptr_array_index(dest
, d_i
);
1259 /* Can't match a stream instance without ID. */
1260 if (candidate_dest
->stream_id
== -1) {
1265 * If the two groups have the same stream instance id
1266 * and belong to the same stream class (stream instance
1267 * ids are per-stream class), they represent the same
1270 if (candidate_dest
->stream_id
!= src_group
->stream_id
||
1271 candidate_dest
->sc
->id
!= src_group
->sc
->id
) {
1275 dest_group
= candidate_dest
;
1281 * Didn't find a friend in dest to merge our src_group into?
1282 * Create a new empty one. This can happen if a stream was
1283 * active in the source trace chunk but not in the destination
1287 struct ctf_stream_class
*sc
;
1288 struct ctf_fs_ds_index
*index
;
1290 sc
= ctf_trace_class_borrow_stream_class_by_id(
1291 dest_trace
->metadata
->tc
, src_group
->sc
->id
);
1294 index
= ctf_fs_ds_index_create(dest_trace
->log_level
,
1295 dest_trace
->self_comp
);
1301 dest_group
= ctf_fs_ds_file_group_create(dest_trace
, sc
,
1302 src_group
->stream_id
, index
);
1303 /* Ownership of index is transferred. */
1310 g_ptr_array_add(dest_trace
->ds_file_groups
, dest_group
);
1313 BT_ASSERT(dest_group
);
1314 merge_ctf_fs_ds_file_groups(dest_group
, src_group
);
1322 * Collapse the given traces, which must all share the same UUID, in a single
1325 * The trace with the most expansive metadata is chosen and all other traces
1326 * are merged into that one. The array slots of all the traces that get merged
1327 * in the chosen one are set to NULL, so only the slot of the chosen trace
1332 int merge_ctf_fs_traces(struct ctf_fs_trace
**traces
, unsigned int num_traces
,
1333 struct ctf_fs_trace
**out_trace
)
1335 unsigned int winner_count
;
1336 struct ctf_fs_trace
*winner
;
1340 BT_ASSERT(num_traces
>= 2);
1342 winner_count
= metadata_count_stream_and_event_classes(traces
[0]);
1346 /* Find the trace with the largest metadata. */
1347 for (i
= 1; i
< num_traces
; i
++) {
1348 struct ctf_fs_trace
*candidate
;
1349 unsigned int candidate_count
;
1351 candidate
= traces
[i
];
1353 /* A bit of sanity check. */
1354 BT_ASSERT(bt_uuid_compare(winner
->metadata
->tc
->uuid
, candidate
->metadata
->tc
->uuid
) == 0);
1356 candidate_count
= metadata_count_stream_and_event_classes(candidate
);
1358 if (candidate_count
> winner_count
) {
1359 winner_count
= candidate_count
;
1365 /* Merge all the other traces in the winning trace. */
1366 for (i
= 0; i
< num_traces
; i
++) {
1367 struct ctf_fs_trace
*trace
= traces
[i
];
1369 /* Don't merge the winner into itself. */
1370 if (trace
== winner
) {
1374 /* Merge trace's data stream file groups into winner's. */
1375 ret
= merge_matching_ctf_fs_ds_file_groups(winner
, trace
);
1382 * Move the winner out of the array, into `*out_trace`.
1384 *out_trace
= winner
;
1385 traces
[winner_i
] = NULL
;
1397 int decode_clock_snapshot_after_event(struct ctf_fs_trace
*ctf_fs_trace
,
1398 struct ctf_clock_class
*default_cc
,
1399 struct ctf_fs_ds_index_entry
*index_entry
,
1400 enum target_event target_event
, uint64_t *cs
, int64_t *ts_ns
)
1402 enum bt_msg_iter_status iter_status
= BT_MSG_ITER_STATUS_OK
;
1403 struct ctf_fs_ds_file
*ds_file
= NULL
;
1404 struct bt_msg_iter
*msg_iter
= NULL
;
1405 bt_logging_level log_level
= ctf_fs_trace
->log_level
;
1406 bt_self_component
*self_comp
= ctf_fs_trace
->self_comp
;
1409 BT_ASSERT(ctf_fs_trace
);
1410 BT_ASSERT(ctf_fs_trace
->metadata
);
1411 BT_ASSERT(ctf_fs_trace
->metadata
->tc
);
1413 msg_iter
= bt_msg_iter_create(ctf_fs_trace
->metadata
->tc
,
1414 bt_common_get_page_size(log_level
) * 8, ctf_fs_ds_file_medops
,
1415 NULL
, log_level
, self_comp
);
1417 /* bt_msg_iter_create() logs errors. */
1422 BT_ASSERT(index_entry
);
1423 BT_ASSERT(index_entry
->path
);
1425 ds_file
= ctf_fs_ds_file_create(ctf_fs_trace
, NULL
, msg_iter
,
1426 NULL
, index_entry
->path
, log_level
);
1428 BT_COMP_LOGE_APPEND_CAUSE(self_comp
, "Failed to create a ctf_fs_ds_file");
1434 * Turn on dry run mode to prevent the creation and usage of Babeltrace
1435 * library objects (bt_field, bt_message_*, etc.).
1437 bt_msg_iter_set_dry_run(msg_iter
, true);
1439 /* Seek to the beginning of the target packet. */
1440 iter_status
= bt_msg_iter_seek(ds_file
->msg_iter
, index_entry
->offset
);
1442 /* bt_msg_iter_seek() logs errors. */
1447 switch (target_event
) {
1450 * Start to decode the packet until we reach the end of
1451 * the first event. To extract the first event's clock
1454 iter_status
= bt_msg_iter_curr_packet_first_event_clock_snapshot(
1455 ds_file
->msg_iter
, cs
);
1458 /* Decode the packet to extract the last event's clock snapshot. */
1459 iter_status
= bt_msg_iter_curr_packet_last_event_clock_snapshot(
1460 ds_file
->msg_iter
, cs
);
1470 /* Convert clock snapshot to timestamp. */
1471 ret
= bt_util_clock_cycles_to_ns_from_origin(*cs
,
1472 default_cc
->frequency
, default_cc
->offset_seconds
,
1473 default_cc
->offset_cycles
, ts_ns
);
1475 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
1476 "Failed to convert clock snapshot to timestamp");
1482 ctf_fs_ds_file_destroy(ds_file
);
1485 bt_msg_iter_destroy(msg_iter
);
1492 int decode_packet_first_event_timestamp(struct ctf_fs_trace
*ctf_fs_trace
,
1493 struct ctf_clock_class
*default_cc
,
1494 struct ctf_fs_ds_index_entry
*index_entry
, uint64_t *cs
, int64_t *ts_ns
)
1496 return decode_clock_snapshot_after_event(ctf_fs_trace
, default_cc
,
1497 index_entry
, FIRST_EVENT
, cs
, ts_ns
);
1501 int decode_packet_last_event_timestamp(struct ctf_fs_trace
*ctf_fs_trace
,
1502 struct ctf_clock_class
*default_cc
,
1503 struct ctf_fs_ds_index_entry
*index_entry
, uint64_t *cs
, int64_t *ts_ns
)
1505 return decode_clock_snapshot_after_event(ctf_fs_trace
, default_cc
,
1506 index_entry
, LAST_EVENT
, cs
, ts_ns
);
1510 * Fix up packet index entries for lttng's "event-after-packet" bug.
1511 * Some buggy lttng tracer versions may emit events with a timestamp that is
1512 * larger (after) than the timestamp_end of the their packets.
1514 * To fix up this erroneous data we do the following:
1515 * 1. If it's not the stream file's last packet: set the packet index entry's
1516 * end time to the next packet's beginning time.
1517 * 2. If it's the stream file's last packet, set the packet index entry's end
1518 * time to the packet's last event's time, if any, or to the packet's
1519 * beginning time otherwise.
1521 * Known buggy tracer versions:
1522 * - before lttng-ust 2.11.0
1523 * - before lttng-module 2.11.0
1524 * - before lttng-module 2.10.10
1525 * - before lttng-module 2.9.13
1528 int fix_index_lttng_event_after_packet_bug(struct ctf_fs_trace
*trace
)
1531 guint ds_file_group_i
;
1532 GPtrArray
*ds_file_groups
= trace
->ds_file_groups
;
1533 bt_logging_level log_level
= trace
->log_level
;
1535 for (ds_file_group_i
= 0; ds_file_group_i
< ds_file_groups
->len
;
1536 ds_file_group_i
++) {
1538 struct ctf_clock_class
*default_cc
;
1539 struct ctf_fs_ds_index_entry
*last_entry
;
1540 struct ctf_fs_ds_index
*index
;
1542 struct ctf_fs_ds_file_group
*ds_file_group
=
1543 g_ptr_array_index(ds_file_groups
, ds_file_group_i
);
1545 BT_ASSERT(ds_file_group
);
1546 index
= ds_file_group
->index
;
1549 BT_ASSERT(index
->entries
);
1550 BT_ASSERT(index
->entries
->len
> 0);
1553 * Iterate over all entries but the last one. The last one is
1554 * fixed differently after.
1556 for (entry_i
= 0; entry_i
< index
->entries
->len
- 1;
1558 struct ctf_fs_ds_index_entry
*curr_entry
, *next_entry
;
1560 curr_entry
= g_ptr_array_index(index
->entries
, entry_i
);
1561 next_entry
= g_ptr_array_index(index
->entries
, entry_i
+ 1);
1564 * 1. Set the current index entry `end` timestamp to
1565 * the next index entry `begin` timestamp.
1567 curr_entry
->timestamp_end
= next_entry
->timestamp_begin
;
1568 curr_entry
->timestamp_end_ns
= next_entry
->timestamp_begin_ns
;
1572 * 2. Fix the last entry by decoding the last event of the last
1575 last_entry
= g_ptr_array_index(index
->entries
,
1576 index
->entries
->len
- 1);
1577 BT_ASSERT(last_entry
);
1579 BT_ASSERT(ds_file_group
->sc
->default_clock_class
);
1580 default_cc
= ds_file_group
->sc
->default_clock_class
;
1583 * Decode packet to read the timestamp of the last event of the
1586 ret
= decode_packet_last_event_timestamp(trace
, default_cc
,
1587 last_entry
, &last_entry
->timestamp_end
,
1588 &last_entry
->timestamp_end_ns
);
1590 BT_COMP_LOGE_APPEND_CAUSE(trace
->self_comp
,
1591 "Failed to decode stream's last packet to get its last event's clock snapshot.");
1601 * Fix up packet index entries for barectf's "event-before-packet" bug.
1602 * Some buggy barectf tracer versions may emit events with a timestamp that is
1603 * less than the timestamp_begin of the their packets.
1605 * To fix up this erroneous data we do the following:
1606 * 1. Starting at the second index entry, set the timestamp_begin of the
1607 * current entry to the timestamp of the first event of the packet.
1608 * 2. Set the previous entry's timestamp_end to the timestamp_begin of the
1611 * Known buggy tracer versions:
1612 * - before barectf 2.3.1
1615 int fix_index_barectf_event_before_packet_bug(struct ctf_fs_trace
*trace
)
1618 guint ds_file_group_i
;
1619 GPtrArray
*ds_file_groups
= trace
->ds_file_groups
;
1620 bt_logging_level log_level
= trace
->log_level
;
1622 for (ds_file_group_i
= 0; ds_file_group_i
< ds_file_groups
->len
;
1623 ds_file_group_i
++) {
1625 struct ctf_clock_class
*default_cc
;
1626 struct ctf_fs_ds_file_group
*ds_file_group
=
1627 g_ptr_array_index(ds_file_groups
, ds_file_group_i
);
1629 struct ctf_fs_ds_index
*index
= ds_file_group
->index
;
1632 BT_ASSERT(index
->entries
);
1633 BT_ASSERT(index
->entries
->len
> 0);
1635 BT_ASSERT(ds_file_group
->sc
->default_clock_class
);
1636 default_cc
= ds_file_group
->sc
->default_clock_class
;
1639 * 1. Iterate over the index, starting from the second entry
1642 for (entry_i
= 1; entry_i
< index
->entries
->len
;
1644 struct ctf_fs_ds_index_entry
*curr_entry
, *prev_entry
;
1645 prev_entry
= g_ptr_array_index(index
->entries
, entry_i
- 1);
1646 curr_entry
= g_ptr_array_index(index
->entries
, entry_i
);
1648 * 2. Set the current entry `begin` timestamp to the
1649 * timestamp of the first event of the current packet.
1651 ret
= decode_packet_first_event_timestamp(trace
, default_cc
,
1652 curr_entry
, &curr_entry
->timestamp_begin
,
1653 &curr_entry
->timestamp_begin_ns
);
1655 BT_COMP_LOGE_APPEND_CAUSE(trace
->self_comp
,
1656 "Failed to decode first event's clock snapshot");
1661 * 3. Set the previous entry `end` timestamp to the
1662 * timestamp of the first event of the current packet.
1664 prev_entry
->timestamp_end
= curr_entry
->timestamp_begin
;
1665 prev_entry
->timestamp_end_ns
= curr_entry
->timestamp_begin_ns
;
1673 * When using the lttng-crash feature it's likely that the last packets of each
1674 * stream have their timestamp_end set to zero. This is caused by the fact that
1675 * the tracer crashed and was not able to properly close the packets.
1677 * To fix up this erroneous data we do the following:
1678 * For each index entry, if the entry's timestamp_end is 0 and the
1679 * timestamp_begin is not 0:
1680 * - If it's the stream file's last packet: set the packet index entry's end
1681 * time to the packet's last event's time, if any, or to the packet's
1682 * beginning time otherwise.
1683 * - If it's not the stream file's last packet: set the packet index
1684 * entry's end time to the next packet's beginning time.
1686 * Affected versions:
1687 * - All current and future lttng-ust and lttng-modules versions.
1690 int fix_index_lttng_crash_quirk(struct ctf_fs_trace
*trace
)
1693 guint ds_file_group_idx
;
1694 GPtrArray
*ds_file_groups
= trace
->ds_file_groups
;
1695 bt_logging_level log_level
= trace
->log_level
;
1697 for (ds_file_group_idx
= 0; ds_file_group_idx
< ds_file_groups
->len
;
1698 ds_file_group_idx
++) {
1700 struct ctf_clock_class
*default_cc
;
1701 struct ctf_fs_ds_index_entry
*last_entry
;
1702 struct ctf_fs_ds_index
*index
;
1704 struct ctf_fs_ds_file_group
*ds_file_group
=
1705 g_ptr_array_index(ds_file_groups
, ds_file_group_idx
);
1707 BT_ASSERT(ds_file_group
);
1708 index
= ds_file_group
->index
;
1710 BT_ASSERT(ds_file_group
->sc
->default_clock_class
);
1711 default_cc
= ds_file_group
->sc
->default_clock_class
;
1714 BT_ASSERT(index
->entries
);
1715 BT_ASSERT(index
->entries
->len
> 0);
1717 last_entry
= g_ptr_array_index(index
->entries
,
1718 index
->entries
->len
- 1);
1719 BT_ASSERT(last_entry
);
1722 /* 1. Fix the last entry first. */
1723 if (last_entry
->timestamp_end
== 0 &&
1724 last_entry
->timestamp_begin
!= 0) {
1726 * Decode packet to read the timestamp of the
1727 * last event of the stream file.
1729 ret
= decode_packet_last_event_timestamp(trace
,
1730 default_cc
, last_entry
,
1731 &last_entry
->timestamp_end
,
1732 &last_entry
->timestamp_end_ns
);
1734 BT_COMP_LOGE_APPEND_CAUSE(trace
->self_comp
,
1735 "Failed to decode last event's clock snapshot");
1740 /* Iterate over all entries but the last one. */
1741 for (entry_idx
= 0; entry_idx
< index
->entries
->len
- 1;
1743 struct ctf_fs_ds_index_entry
*curr_entry
, *next_entry
;
1744 curr_entry
= g_ptr_array_index(index
->entries
, entry_idx
);
1745 next_entry
= g_ptr_array_index(index
->entries
, entry_idx
+ 1);
1747 if (curr_entry
->timestamp_end
== 0 &&
1748 curr_entry
->timestamp_begin
!= 0) {
1750 * 2. Set the current index entry `end` timestamp to
1751 * the next index entry `begin` timestamp.
1753 curr_entry
->timestamp_end
= next_entry
->timestamp_begin
;
1754 curr_entry
->timestamp_end_ns
= next_entry
->timestamp_begin_ns
;
1764 * Extract the tracer information necessary to compare versions.
1765 * Returns 0 on success, and -1 if the extraction is not successful because the
1766 * necessary fields are absents in the trace metadata.
1769 int extract_tracer_info(struct ctf_fs_trace
*trace
,
1770 struct tracer_info
*current_tracer_info
)
1773 struct ctf_trace_class_env_entry
*entry
;
1775 /* Clear the current_tracer_info struct */
1776 memset(current_tracer_info
, 0, sizeof(*current_tracer_info
));
1779 * To compare 2 tracer versions, at least the tracer name and it's
1780 * major version are needed. If one of these is missing, consider it an
1781 * extraction failure.
1783 entry
= ctf_trace_class_borrow_env_entry_by_name(
1784 trace
->metadata
->tc
, "tracer_name");
1785 if (!entry
|| entry
->type
!= CTF_TRACE_CLASS_ENV_ENTRY_TYPE_STR
) {
1786 goto missing_bare_minimum
;
1789 /* Set tracer name. */
1790 current_tracer_info
->name
= entry
->value
.str
->str
;
1792 entry
= ctf_trace_class_borrow_env_entry_by_name(
1793 trace
->metadata
->tc
, "tracer_major");
1794 if (!entry
|| entry
->type
!= CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT
) {
1795 goto missing_bare_minimum
;
1798 /* Set major version number. */
1799 current_tracer_info
->major
= entry
->value
.i
;
1801 entry
= ctf_trace_class_borrow_env_entry_by_name(
1802 trace
->metadata
->tc
, "tracer_minor");
1803 if (!entry
|| entry
->type
!= CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT
) {
1807 /* Set minor version number. */
1808 current_tracer_info
->minor
= entry
->value
.i
;
1810 entry
= ctf_trace_class_borrow_env_entry_by_name(
1811 trace
->metadata
->tc
, "tracer_patch");
1814 * If `tracer_patch` doesn't exist `tracer_patchlevel` might.
1815 * For example, `lttng-modules` uses entry name
1816 * `tracer_patchlevel`.
1818 entry
= ctf_trace_class_borrow_env_entry_by_name(
1819 trace
->metadata
->tc
, "tracer_patchlevel");
1822 if (!entry
|| entry
->type
!= CTF_TRACE_CLASS_ENV_ENTRY_TYPE_INT
) {
1826 /* Set patch version number. */
1827 current_tracer_info
->patch
= entry
->value
.i
;
1831 missing_bare_minimum
:
1838 bool is_tracer_affected_by_lttng_event_after_packet_bug(
1839 struct tracer_info
*curr_tracer_info
)
1841 bool is_affected
= false;
1843 if (strcmp(curr_tracer_info
->name
, "lttng-ust") == 0) {
1844 if (curr_tracer_info
->major
< 2) {
1846 } else if (curr_tracer_info
->major
== 2) {
1847 /* fixed in lttng-ust 2.11.0 */
1848 if (curr_tracer_info
->minor
< 11) {
1852 } else if (strcmp(curr_tracer_info
->name
, "lttng-modules") == 0) {
1853 if (curr_tracer_info
->major
< 2) {
1855 } else if (curr_tracer_info
->major
== 2) {
1856 /* fixed in lttng-modules 2.11.0 */
1857 if (curr_tracer_info
->minor
== 10) {
1858 /* fixed in lttng-modules 2.10.10 */
1859 if (curr_tracer_info
->patch
< 10) {
1862 } else if (curr_tracer_info
->minor
== 9) {
1863 /* fixed in lttng-modules 2.9.13 */
1864 if (curr_tracer_info
->patch
< 13) {
1867 } else if (curr_tracer_info
->minor
< 9) {
1877 bool is_tracer_affected_by_barectf_event_before_packet_bug(
1878 struct tracer_info
*curr_tracer_info
)
1880 bool is_affected
= false;
1882 if (strcmp(curr_tracer_info
->name
, "barectf") == 0) {
1883 if (curr_tracer_info
->major
< 2) {
1885 } else if (curr_tracer_info
->major
== 2) {
1886 if (curr_tracer_info
->minor
< 3) {
1888 } else if (curr_tracer_info
->minor
== 3) {
1889 /* fixed in barectf 2.3.1 */
1890 if (curr_tracer_info
->patch
< 1) {
1901 bool is_tracer_affected_by_lttng_crash_quirk(
1902 struct tracer_info
*curr_tracer_info
)
1904 bool is_affected
= false;
1906 /* All LTTng tracer may be affected by this lttng crash quirk. */
1907 if (strcmp(curr_tracer_info
->name
, "lttng-ust") == 0) {
1909 } else if (strcmp(curr_tracer_info
->name
, "lttng-modules") == 0) {
1917 * Looks for trace produced by known buggy tracers and fix up the index
1921 int fix_packet_index_tracer_bugs(struct ctf_fs_component
*ctf_fs
,
1922 bt_self_component
*self_comp
)
1925 struct tracer_info current_tracer_info
;
1926 bt_logging_level log_level
= ctf_fs
->log_level
;
1928 ret
= extract_tracer_info(ctf_fs
->trace
, ¤t_tracer_info
);
1931 * A trace may not have all the necessary environment
1932 * entries to do the tracer version comparison.
1933 * At least, the tracer name and major version number
1934 * are needed. Failing to extract these entries is not
1938 BT_LOGI_STR("Cannot extract tracer information necessary to compare with buggy versions.");
1942 /* Check if the trace may be affected by old tracer bugs. */
1943 if (is_tracer_affected_by_lttng_event_after_packet_bug(
1944 ¤t_tracer_info
)) {
1945 BT_LOGI_STR("Trace may be affected by LTTng tracer packet timestamp bug. Fixing up.");
1946 ret
= fix_index_lttng_event_after_packet_bug(ctf_fs
->trace
);
1948 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
1949 "Failed to fix LTTng event-after-packet bug.");
1952 ctf_fs
->trace
->metadata
->tc
->quirks
.lttng_event_after_packet
= true;
1955 if (is_tracer_affected_by_barectf_event_before_packet_bug(
1956 ¤t_tracer_info
)) {
1957 BT_LOGI_STR("Trace may be affected by barectf tracer packet timestamp bug. Fixing up.");
1958 ret
= fix_index_barectf_event_before_packet_bug(ctf_fs
->trace
);
1960 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
1961 "Failed to fix barectf event-before-packet bug.");
1964 ctf_fs
->trace
->metadata
->tc
->quirks
.barectf_event_before_packet
= true;
1967 if (is_tracer_affected_by_lttng_crash_quirk(
1968 ¤t_tracer_info
)) {
1969 ret
= fix_index_lttng_crash_quirk(ctf_fs
->trace
);
1971 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
1972 "Failed to fix lttng-crash timestamp quirks.");
1975 ctf_fs
->trace
->metadata
->tc
->quirks
.lttng_crash
= true;
1983 gint
compare_ds_file_groups_by_first_path(gconstpointer a
, gconstpointer b
)
1985 struct ctf_fs_ds_file_group
* const *ds_file_group_a
= a
;
1986 struct ctf_fs_ds_file_group
* const *ds_file_group_b
= b
;
1987 const struct ctf_fs_ds_file_info
*first_ds_file_info_a
;
1988 const struct ctf_fs_ds_file_info
*first_ds_file_info_b
;
1990 BT_ASSERT((*ds_file_group_a
)->ds_file_infos
->len
> 0);
1991 BT_ASSERT((*ds_file_group_b
)->ds_file_infos
->len
> 0);
1992 first_ds_file_info_a
= (*ds_file_group_a
)->ds_file_infos
->pdata
[0];
1993 first_ds_file_info_b
= (*ds_file_group_b
)->ds_file_infos
->pdata
[0];
1994 return strcmp(first_ds_file_info_a
->path
->str
,
1995 first_ds_file_info_b
->path
->str
);
1998 int ctf_fs_component_create_ctf_fs_trace(
1999 struct ctf_fs_component
*ctf_fs
,
2000 const bt_value
*paths_value
,
2001 const bt_value
*trace_name_value
,
2002 bt_self_component
*self_comp
,
2003 bt_self_component_class
*self_comp_class
)
2007 bt_logging_level log_level
= ctf_fs
->log_level
;
2009 const char *trace_name
;
2011 BT_ASSERT(bt_value_get_type(paths_value
) == BT_VALUE_TYPE_ARRAY
);
2012 BT_ASSERT(!bt_value_array_is_empty(paths_value
));
2014 traces
= g_ptr_array_new_with_free_func(ctf_fs_trace_destroy_notifier
);
2016 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
2017 "Failed to allocate a GPtrArray.");
2021 trace_name
= trace_name_value
? bt_value_string_get(trace_name_value
) : NULL
;
2023 /* Start by creating a separate ctf_fs_trace object for each path. */
2024 for (i
= 0; i
< bt_value_array_get_length(paths_value
); i
++) {
2025 const bt_value
*path_value
= bt_value_array_borrow_element_by_index_const(paths_value
, i
);
2026 const char *input
= bt_value_string_get(path_value
);
2028 ret
= ctf_fs_component_create_ctf_fs_trace_one_path(ctf_fs
,
2029 input
, trace_name
, traces
, self_comp
, self_comp_class
);
2035 if (traces
->len
> 1) {
2036 struct ctf_fs_trace
*first_trace
= (struct ctf_fs_trace
*) traces
->pdata
[0];
2037 const uint8_t *first_trace_uuid
= first_trace
->metadata
->tc
->uuid
;
2038 struct ctf_fs_trace
*trace
;
2041 * We have more than one trace, they must all share the same
2042 * UUID, verify that.
2044 for (i
= 0; i
< traces
->len
; i
++) {
2045 struct ctf_fs_trace
*this_trace
=
2046 (struct ctf_fs_trace
*) traces
->pdata
[i
];
2047 const uint8_t *this_trace_uuid
= this_trace
->metadata
->tc
->uuid
;
2049 if (!this_trace
->metadata
->tc
->is_uuid_set
) {
2050 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
2051 "Multiple traces given, but a trace does not have a UUID: path=%s",
2052 this_trace
->path
->str
);
2056 if (bt_uuid_compare(first_trace_uuid
, this_trace_uuid
) != 0) {
2057 char first_trace_uuid_str
[BT_UUID_STR_LEN
+ 1];
2058 char this_trace_uuid_str
[BT_UUID_STR_LEN
+ 1];
2060 bt_uuid_to_str(first_trace_uuid
, first_trace_uuid_str
);
2061 bt_uuid_to_str(this_trace_uuid
, this_trace_uuid_str
);
2063 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
2064 "Multiple traces given, but UUIDs don't match: "
2065 "first-trace-uuid=%s, first-trace-path=%s, "
2066 "trace-uuid=%s, trace-path=%s",
2067 first_trace_uuid_str
, first_trace
->path
->str
,
2068 this_trace_uuid_str
, this_trace
->path
->str
);
2073 ret
= merge_ctf_fs_traces((struct ctf_fs_trace
**) traces
->pdata
,
2074 traces
->len
, &trace
);
2076 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
2077 "Failed to merge traces with the same UUID.");
2081 ctf_fs
->trace
= trace
;
2083 /* Just one trace, it may or may not have a UUID, both are fine. */
2084 ctf_fs
->trace
= traces
->pdata
[0];
2085 traces
->pdata
[0] = NULL
;
2088 ret
= fix_packet_index_tracer_bugs(ctf_fs
, self_comp
);
2090 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
2091 "Failed to fix packet index tracer bugs.");
2095 * Sort data stream file groups by first data stream file info
2096 * path to get a deterministic order. This order influences the
2097 * order of the output ports. It also influences the order of
2098 * the automatic stream IDs if the trace's packet headers do not
2099 * contain a `stream_instance_id` field, in which case the data
2100 * stream file to stream ID association is always the same,
2101 * whatever the build and the system.
2103 * Having a deterministic order here can help debugging and
2106 g_ptr_array_sort(ctf_fs
->trace
->ds_file_groups
,
2107 compare_ds_file_groups_by_first_path
);
2113 g_ptr_array_free(traces
, TRUE
);
2118 GString
*get_stream_instance_unique_name(
2119 struct ctf_fs_ds_file_group
*ds_file_group
)
2122 struct ctf_fs_ds_file_info
*ds_file_info
;
2124 name
= g_string_new(NULL
);
2130 * If there's more than one stream file in the stream file
2131 * group, the first (earliest) stream file's path is used as
2132 * the stream's unique name.
2134 BT_ASSERT(ds_file_group
->ds_file_infos
->len
> 0);
2135 ds_file_info
= g_ptr_array_index(ds_file_group
->ds_file_infos
, 0);
2136 g_string_assign(name
, ds_file_info
->path
->str
);
2142 /* Create the IR stream objects for ctf_fs_trace. */
2145 int create_streams_for_trace(struct ctf_fs_trace
*ctf_fs_trace
)
2148 GString
*name
= NULL
;
2150 bt_logging_level log_level
= ctf_fs_trace
->log_level
;
2151 bt_self_component
*self_comp
= ctf_fs_trace
->self_comp
;
2153 for (i
= 0; i
< ctf_fs_trace
->ds_file_groups
->len
; i
++) {
2154 struct ctf_fs_ds_file_group
*ds_file_group
=
2155 g_ptr_array_index(ctf_fs_trace
->ds_file_groups
, i
);
2156 name
= get_stream_instance_unique_name(ds_file_group
);
2162 if (ds_file_group
->sc
->ir_sc
) {
2163 BT_ASSERT(ctf_fs_trace
->trace
);
2165 if (ds_file_group
->stream_id
== UINT64_C(-1)) {
2166 /* No stream ID: use 0 */
2167 ds_file_group
->stream
= bt_stream_create_with_id(
2168 ds_file_group
->sc
->ir_sc
,
2169 ctf_fs_trace
->trace
,
2170 ctf_fs_trace
->next_stream_id
);
2171 ctf_fs_trace
->next_stream_id
++;
2173 /* Specific stream ID */
2174 ds_file_group
->stream
= bt_stream_create_with_id(
2175 ds_file_group
->sc
->ir_sc
,
2176 ctf_fs_trace
->trace
,
2177 (uint64_t) ds_file_group
->stream_id
);
2180 ds_file_group
->stream
= NULL
;
2183 if (!ds_file_group
->stream
) {
2184 BT_COMP_LOGE_APPEND_CAUSE(self_comp
,
2185 "Cannot create stream for DS file group: "
2186 "addr=%p, stream-name=\"%s\"",
2187 ds_file_group
, name
->str
);
2191 ret
= bt_stream_set_name(ds_file_group
->stream
,
2194 BT_COMP_LOGE_APPEND_CAUSE(self_comp
, "Cannot set stream's name: "
2195 "addr=%p, stream-name=\"%s\"",
2196 ds_file_group
->stream
, name
->str
);
2200 g_string_free(name
, TRUE
);
2213 g_string_free(name
, TRUE
);
2218 static const struct bt_param_validation_value_descr inputs_elem_descr
= {
2219 .type
= BT_VALUE_TYPE_STRING
,
2222 static const struct bt_param_validation_map_value_entry_descr fs_params_entries_descr
[] = {
2223 { "inputs", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_MANDATORY
, {
2224 BT_VALUE_TYPE_ARRAY
,
2227 .max_length
= BT_PARAM_VALIDATION_INFINITE
,
2228 .element_type
= &inputs_elem_descr
,
2231 { "trace-name", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_OPTIONAL
, { .type
= BT_VALUE_TYPE_STRING
} },
2232 { "clock-class-offset-s", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_OPTIONAL
, { .type
= BT_VALUE_TYPE_SIGNED_INTEGER
} },
2233 { "clock-class-offset-ns", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_OPTIONAL
, { .type
= BT_VALUE_TYPE_SIGNED_INTEGER
} },
2234 { "force-clock-class-origin-unix-epoch", BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_OPTIONAL
, { .type
= BT_VALUE_TYPE_BOOL
} },
2235 BT_PARAM_VALIDATION_MAP_VALUE_ENTRY_END
2239 bool read_src_fs_parameters(const bt_value
*params
,
2240 const bt_value
**inputs
,
2241 const bt_value
**trace_name
,
2242 struct ctf_fs_component
*ctf_fs
,
2243 bt_self_component
*self_comp
,
2244 bt_self_component_class
*self_comp_class
) {
2246 const bt_value
*value
;
2247 bt_logging_level log_level
= ctf_fs
->log_level
;
2248 enum bt_param_validation_status validate_value_status
;
2249 gchar
*error
= NULL
;
2251 validate_value_status
= bt_param_validation_validate(params
,
2252 fs_params_entries_descr
, &error
);
2253 if (validate_value_status
!= BT_PARAM_VALIDATION_STATUS_OK
) {
2254 BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp
, self_comp_class
,
2260 /* inputs parameter */
2261 *inputs
= bt_value_map_borrow_entry_value_const(params
, "inputs");
2263 /* clock-class-offset-s parameter */
2264 value
= bt_value_map_borrow_entry_value_const(params
,
2265 "clock-class-offset-s");
2267 ctf_fs
->metadata_config
.clock_class_offset_s
=
2268 bt_value_integer_signed_get(value
);
2271 /* clock-class-offset-ns parameter */
2272 value
= bt_value_map_borrow_entry_value_const(params
,
2273 "clock-class-offset-ns");
2275 ctf_fs
->metadata_config
.clock_class_offset_ns
=
2276 bt_value_integer_signed_get(value
);
2279 /* force-clock-class-origin-unix-epoch parameter */
2280 value
= bt_value_map_borrow_entry_value_const(params
,
2281 "force-clock-class-origin-unix-epoch");
2283 ctf_fs
->metadata_config
.force_clock_class_origin_unix_epoch
=
2284 bt_value_bool_get(value
);
2287 /* trace-name parameter */
2288 *trace_name
= bt_value_map_borrow_entry_value_const(params
, "trace-name");
2298 struct ctf_fs_component
*ctf_fs_create(
2299 const bt_value
*params
,
2300 bt_self_component_source
*self_comp_src
,
2301 bt_self_component_class
*self_comp_class
)
2303 struct ctf_fs_component
*ctf_fs
= NULL
;
2304 const bt_value
*inputs_value
;
2305 const bt_value
*trace_name_value
;
2306 bt_self_component
*self_comp
=
2307 bt_self_component_source_as_self_component(self_comp_src
);
2309 ctf_fs
= ctf_fs_component_create(bt_component_get_logging_level(
2310 bt_self_component_as_component(self_comp
)), self_comp
);
2315 if (!read_src_fs_parameters(params
, &inputs_value
, &trace_name_value
,
2316 ctf_fs
, self_comp
, self_comp_class
)) {
2320 bt_self_component_set_data(self_comp
, ctf_fs
);
2322 if (ctf_fs_component_create_ctf_fs_trace(ctf_fs
, inputs_value
,
2323 trace_name_value
, self_comp
, self_comp_class
)) {
2327 if (create_streams_for_trace(ctf_fs
->trace
)) {
2331 if (create_ports_for_trace(ctf_fs
, ctf_fs
->trace
, self_comp_src
)) {
2338 ctf_fs_destroy(ctf_fs
);
2340 bt_self_component_set_data(self_comp
, NULL
);
2347 bt_component_class_initialize_method_status
ctf_fs_init(
2348 bt_self_component_source
*self_comp_src
,
2349 bt_self_component_source_configuration
*config
,
2350 const bt_value
*params
, __attribute__((unused
)) void *init_method_data
)
2352 struct ctf_fs_component
*ctf_fs
;
2353 bt_component_class_initialize_method_status ret
=
2354 BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_OK
;
2356 ctf_fs
= ctf_fs_create(params
, self_comp_src
, NULL
);
2358 ret
= BT_COMPONENT_CLASS_INITIALIZE_METHOD_STATUS_ERROR
;
2365 bt_component_class_query_method_status
ctf_fs_query(
2366 bt_self_component_class_source
*comp_class
,
2367 bt_private_query_executor
*priv_query_exec
,
2368 const char *object
, const bt_value
*params
,
2369 __attribute__((unused
)) void *method_data
,
2370 const bt_value
**result
)
2372 bt_component_class_query_method_status status
=
2373 BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK
;
2374 bt_logging_level log_level
= bt_query_executor_get_logging_level(
2375 bt_private_query_executor_as_query_executor_const(
2378 if (strcmp(object
, "metadata-info") == 0) {
2379 status
= metadata_info_query(comp_class
, params
, log_level
,
2381 } else if (strcmp(object
, "babeltrace.trace-infos") == 0) {
2382 status
= trace_infos_query(comp_class
, params
, log_level
,
2384 } else if (!strcmp(object
, "babeltrace.support-info")) {
2385 status
= support_info_query(comp_class
, params
, log_level
, result
);
2387 BT_LOGE("Unknown query object `%s`", object
);
2388 status
= BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_UNKNOWN_OBJECT
;