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 #include <babeltrace/common-internal.h>
29 #include <babeltrace/babeltrace.h>
30 #include <plugins-common.h>
32 #include <babeltrace/assert-internal.h>
37 #include "data-stream-file.h"
39 #include "../common/metadata/decoder.h"
40 #include "../common/msg-iter/msg-iter.h"
41 #include "../common/utils/utils.h"
44 #define BT_LOG_TAG "PLUGIN-CTF-FS-SRC"
48 int msg_iter_data_set_current_ds_file(struct ctf_fs_msg_iter_data
*msg_iter_data
)
50 struct ctf_fs_ds_file_info
*ds_file_info
;
53 BT_ASSERT(msg_iter_data
->ds_file_info_index
<
54 msg_iter_data
->ds_file_group
->ds_file_infos
->len
);
55 ds_file_info
= g_ptr_array_index(
56 msg_iter_data
->ds_file_group
->ds_file_infos
,
57 msg_iter_data
->ds_file_info_index
);
59 ctf_fs_ds_file_destroy(msg_iter_data
->ds_file
);
60 msg_iter_data
->ds_file
= ctf_fs_ds_file_create(
61 msg_iter_data
->ds_file_group
->ctf_fs_trace
,
62 msg_iter_data
->pc_msg_iter
,
63 msg_iter_data
->msg_iter
,
64 msg_iter_data
->ds_file_group
->stream
,
65 ds_file_info
->path
->str
);
66 if (!msg_iter_data
->ds_file
) {
74 void ctf_fs_msg_iter_data_destroy(
75 struct ctf_fs_msg_iter_data
*msg_iter_data
)
81 ctf_fs_ds_file_destroy(msg_iter_data
->ds_file
);
83 if (msg_iter_data
->msg_iter
) {
84 bt_msg_iter_destroy(msg_iter_data
->msg_iter
);
87 g_free(msg_iter_data
);
91 void set_msg_iter_emits_stream_beginning_end_messages(
92 struct ctf_fs_msg_iter_data
*msg_iter_data
)
94 bt_msg_iter_set_emit_stream_beginning_message(
95 msg_iter_data
->ds_file
->msg_iter
,
96 msg_iter_data
->ds_file_info_index
== 0);
97 bt_msg_iter_set_emit_stream_end_message(
98 msg_iter_data
->ds_file
->msg_iter
,
99 msg_iter_data
->ds_file_info_index
==
100 msg_iter_data
->ds_file_group
->ds_file_infos
->len
- 1);
104 bt_self_message_iterator_status
ctf_fs_iterator_next_one(
105 struct ctf_fs_msg_iter_data
*msg_iter_data
,
106 const bt_message
**out_msg
)
108 bt_self_message_iterator_status status
;
110 BT_ASSERT(msg_iter_data
->ds_file
);
115 status
= ctf_fs_ds_file_next(msg_iter_data
->ds_file
, &msg
);
117 case BT_SELF_MESSAGE_ITERATOR_STATUS_OK
:
121 case BT_SELF_MESSAGE_ITERATOR_STATUS_END
:
125 if (msg_iter_data
->ds_file_info_index
==
126 msg_iter_data
->ds_file_group
->ds_file_infos
->len
- 1) {
127 /* End of all group's stream files */
131 msg_iter_data
->ds_file_info_index
++;
132 bt_msg_iter_reset_for_next_stream_file(
133 msg_iter_data
->msg_iter
);
134 set_msg_iter_emits_stream_beginning_end_messages(
138 * Open and start reading the next stream file
139 * within our stream file group.
141 ret
= msg_iter_data_set_current_ds_file(msg_iter_data
);
143 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
147 /* Continue the loop to get the next message */
160 bt_self_message_iterator_status
ctf_fs_iterator_next(
161 bt_self_message_iterator
*iterator
,
162 bt_message_array_const msgs
, uint64_t capacity
,
165 bt_self_message_iterator_status status
=
166 BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
167 struct ctf_fs_msg_iter_data
*msg_iter_data
=
168 bt_self_message_iterator_get_data(iterator
);
171 while (i
< capacity
&& status
== BT_SELF_MESSAGE_ITERATOR_STATUS_OK
) {
172 status
= ctf_fs_iterator_next_one(msg_iter_data
, &msgs
[i
]);
173 if (status
== BT_SELF_MESSAGE_ITERATOR_STATUS_OK
) {
180 * Even if ctf_fs_iterator_next_one() returned something
181 * else than BT_SELF_MESSAGE_ITERATOR_STATUS_OK, we
182 * accumulated message objects in the output
183 * message array, so we need to return
184 * BT_SELF_MESSAGE_ITERATOR_STATUS_OK so that they are
185 * transfered to downstream. This other status occurs
186 * again the next time muxer_msg_iter_do_next() is
187 * called, possibly without any accumulated
188 * message, in which case we'll return it.
191 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
198 int ctf_fs_iterator_reset(struct ctf_fs_msg_iter_data
*msg_iter_data
)
202 msg_iter_data
->ds_file_info_index
= 0;
203 ret
= msg_iter_data_set_current_ds_file(msg_iter_data
);
208 bt_msg_iter_reset(msg_iter_data
->msg_iter
);
209 set_msg_iter_emits_stream_beginning_end_messages(msg_iter_data
);
216 bt_self_message_iterator_status
ctf_fs_iterator_seek_beginning(
217 bt_self_message_iterator
*it
)
219 struct ctf_fs_msg_iter_data
*msg_iter_data
=
220 bt_self_message_iterator_get_data(it
);
221 bt_self_message_iterator_status status
=
222 BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
224 BT_ASSERT(msg_iter_data
);
225 if (ctf_fs_iterator_reset(msg_iter_data
)) {
226 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
233 void ctf_fs_iterator_finalize(bt_self_message_iterator
*it
)
235 ctf_fs_msg_iter_data_destroy(
236 bt_self_message_iterator_get_data(it
));
240 bt_self_message_iterator_status
ctf_fs_iterator_init(
241 bt_self_message_iterator
*self_msg_iter
,
242 bt_self_component_source
*self_comp
,
243 bt_self_component_port_output
*self_port
)
245 struct ctf_fs_port_data
*port_data
;
246 struct ctf_fs_msg_iter_data
*msg_iter_data
= NULL
;
247 bt_self_message_iterator_status ret
=
248 BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
250 port_data
= bt_self_component_port_get_data(
251 bt_self_component_port_output_as_self_component_port(
253 BT_ASSERT(port_data
);
254 msg_iter_data
= g_new0(struct ctf_fs_msg_iter_data
, 1);
255 if (!msg_iter_data
) {
256 ret
= BT_SELF_MESSAGE_ITERATOR_STATUS_NOMEM
;
260 msg_iter_data
->pc_msg_iter
= self_msg_iter
;
261 msg_iter_data
->msg_iter
= bt_msg_iter_create(
262 port_data
->ds_file_group
->ctf_fs_trace
->metadata
->tc
,
263 bt_common_get_page_size() * 8,
264 ctf_fs_ds_file_medops
, NULL
);
265 if (!msg_iter_data
->msg_iter
) {
266 BT_LOGE_STR("Cannot create a CTF message iterator.");
267 ret
= BT_SELF_MESSAGE_ITERATOR_STATUS_NOMEM
;
271 msg_iter_data
->ds_file_group
= port_data
->ds_file_group
;
272 if (ctf_fs_iterator_reset(msg_iter_data
)) {
273 ret
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
277 bt_self_message_iterator_set_data(self_msg_iter
,
279 if (ret
!= BT_SELF_MESSAGE_ITERATOR_STATUS_OK
) {
283 msg_iter_data
= NULL
;
287 bt_self_message_iterator_set_data(self_msg_iter
, NULL
);
290 ctf_fs_msg_iter_data_destroy(msg_iter_data
);
295 void ctf_fs_destroy(struct ctf_fs_component
*ctf_fs
)
301 if (ctf_fs
->traces
) {
302 g_ptr_array_free(ctf_fs
->traces
, TRUE
);
305 if (ctf_fs
->port_data
) {
306 g_ptr_array_free(ctf_fs
->port_data
, TRUE
);
313 void ctf_fs_trace_destroy(struct ctf_fs_trace
*ctf_fs_trace
)
319 if (ctf_fs_trace
->ds_file_groups
) {
320 g_ptr_array_free(ctf_fs_trace
->ds_file_groups
, TRUE
);
323 BT_TRACE_PUT_REF_AND_RESET(ctf_fs_trace
->trace
);
325 if (ctf_fs_trace
->path
) {
326 g_string_free(ctf_fs_trace
->path
, TRUE
);
329 if (ctf_fs_trace
->name
) {
330 g_string_free(ctf_fs_trace
->name
, TRUE
);
333 if (ctf_fs_trace
->metadata
) {
334 ctf_fs_metadata_fini(ctf_fs_trace
->metadata
);
335 g_free(ctf_fs_trace
->metadata
);
338 g_free(ctf_fs_trace
);
342 void ctf_fs_trace_destroy_notifier(void *data
)
344 struct ctf_fs_trace
*trace
= data
;
345 ctf_fs_trace_destroy(trace
);
348 void ctf_fs_finalize(bt_self_component_source
*component
)
350 ctf_fs_destroy(bt_self_component_get_data(
351 bt_self_component_source_as_self_component(component
)));
355 void port_data_destroy(void *data
) {
356 struct ctf_fs_port_data
*port_data
= data
;
366 GString
*get_stream_instance_unique_name(
367 struct ctf_fs_ds_file_group
*ds_file_group
)
370 struct ctf_fs_ds_file_info
*ds_file_info
;
372 name
= g_string_new(NULL
);
378 * If there's more than one stream file in the stream file
379 * group, the first (earliest) stream file's path is used as
380 * the stream's unique name.
382 BT_ASSERT(ds_file_group
->ds_file_infos
->len
> 0);
383 ds_file_info
= g_ptr_array_index(ds_file_group
->ds_file_infos
, 0);
384 g_string_assign(name
, ds_file_info
->path
->str
);
391 int create_one_port_for_trace(struct ctf_fs_component
*ctf_fs
,
392 struct ctf_fs_trace
*ctf_fs_trace
,
393 struct ctf_fs_ds_file_group
*ds_file_group
)
396 struct ctf_fs_port_data
*port_data
= NULL
;
397 GString
*port_name
= NULL
;
399 port_name
= get_stream_instance_unique_name(ds_file_group
);
404 BT_LOGD("Creating one port named `%s`", port_name
->str
);
406 /* Create output port for this file */
407 port_data
= g_new0(struct ctf_fs_port_data
, 1);
412 port_data
->ctf_fs
= ctf_fs
;
413 port_data
->ds_file_group
= ds_file_group
;
414 ret
= bt_self_component_source_add_output_port(
415 ctf_fs
->self_comp
, port_name
->str
, port_data
, NULL
);
420 g_ptr_array_add(ctf_fs
->port_data
, port_data
);
429 g_string_free(port_name
, TRUE
);
432 port_data_destroy(port_data
);
437 int create_ports_for_trace(struct ctf_fs_component
*ctf_fs
,
438 struct ctf_fs_trace
*ctf_fs_trace
)
443 /* Create one output port for each stream file group */
444 for (i
= 0; i
< ctf_fs_trace
->ds_file_groups
->len
; i
++) {
445 struct ctf_fs_ds_file_group
*ds_file_group
=
446 g_ptr_array_index(ctf_fs_trace
->ds_file_groups
, i
);
448 ret
= create_one_port_for_trace(ctf_fs
, ctf_fs_trace
,
451 BT_LOGE("Cannot create output port.");
461 void ctf_fs_ds_file_info_destroy(struct ctf_fs_ds_file_info
*ds_file_info
)
467 if (ds_file_info
->path
) {
468 g_string_free(ds_file_info
->path
, TRUE
);
471 ctf_fs_ds_index_destroy(ds_file_info
->index
);
472 g_free(ds_file_info
);
476 struct ctf_fs_ds_file_info
*ctf_fs_ds_file_info_create(const char *path
,
477 int64_t begin_ns
, struct ctf_fs_ds_index
*index
)
479 struct ctf_fs_ds_file_info
*ds_file_info
;
481 ds_file_info
= g_new0(struct ctf_fs_ds_file_info
, 1);
486 ds_file_info
->path
= g_string_new(path
);
487 if (!ds_file_info
->path
) {
488 ctf_fs_ds_file_info_destroy(ds_file_info
);
493 ds_file_info
->begin_ns
= begin_ns
;
494 ds_file_info
->index
= index
;
498 ctf_fs_ds_index_destroy(index
);
503 void ctf_fs_ds_file_group_destroy(struct ctf_fs_ds_file_group
*ds_file_group
)
505 if (!ds_file_group
) {
509 if (ds_file_group
->ds_file_infos
) {
510 g_ptr_array_free(ds_file_group
->ds_file_infos
, TRUE
);
513 bt_stream_put_ref(ds_file_group
->stream
);
514 bt_stream_class_put_ref(ds_file_group
->stream_class
);
515 g_free(ds_file_group
);
519 struct ctf_fs_ds_file_group
*ctf_fs_ds_file_group_create(
520 struct ctf_fs_trace
*ctf_fs_trace
,
521 bt_stream_class
*stream_class
,
522 uint64_t stream_instance_id
)
524 struct ctf_fs_ds_file_group
*ds_file_group
;
526 ds_file_group
= g_new0(struct ctf_fs_ds_file_group
, 1);
527 if (!ds_file_group
) {
531 ds_file_group
->ds_file_infos
= g_ptr_array_new_with_free_func(
532 (GDestroyNotify
) ctf_fs_ds_file_info_destroy
);
533 if (!ds_file_group
->ds_file_infos
) {
537 ds_file_group
->stream_id
= stream_instance_id
;
538 BT_ASSERT(stream_class
);
539 ds_file_group
->stream_class
= stream_class
;
540 bt_stream_class_get_ref(ds_file_group
->stream_class
);
541 ds_file_group
->ctf_fs_trace
= ctf_fs_trace
;
545 ctf_fs_ds_file_group_destroy(ds_file_group
);
546 ds_file_group
= NULL
;
549 return ds_file_group
;
552 /* Replace by g_ptr_array_insert when we depend on glib >= 2.40. */
554 void array_insert(GPtrArray
*array
, gpointer element
, size_t pos
)
556 size_t original_array_len
= array
->len
;
558 /* Allocate an unused element at the end of the array. */
559 g_ptr_array_add(array
, NULL
);
561 /* If we are not inserting at the end, move the elements by one. */
562 if (pos
< original_array_len
) {
563 memmove(&(array
->pdata
[pos
+ 1]),
564 &(array
->pdata
[pos
]),
565 (original_array_len
- pos
) * sizeof(gpointer
));
568 /* Insert the value and bump the array len */
569 array
->pdata
[pos
] = element
;
573 int ctf_fs_ds_file_group_add_ds_file_info(
574 struct ctf_fs_ds_file_group
*ds_file_group
,
575 const char *path
, int64_t begin_ns
,
576 struct ctf_fs_ds_index
*index
)
578 struct ctf_fs_ds_file_info
*ds_file_info
;
582 /* Onwership of index is transferred. */
583 ds_file_info
= ctf_fs_ds_file_info_create(path
, begin_ns
, index
);
589 /* Find a spot to insert this one */
590 for (i
= 0; i
< ds_file_group
->ds_file_infos
->len
; i
++) {
591 struct ctf_fs_ds_file_info
*other_ds_file_info
=
592 g_ptr_array_index(ds_file_group
->ds_file_infos
, i
);
594 if (begin_ns
< other_ds_file_info
->begin_ns
) {
599 array_insert(ds_file_group
->ds_file_infos
, ds_file_info
, i
);
604 ctf_fs_ds_file_info_destroy(ds_file_info
);
605 ctf_fs_ds_index_destroy(index
);
612 int add_ds_file_to_ds_file_group(struct ctf_fs_trace
*ctf_fs_trace
,
615 bt_stream_class
*stream_class
= NULL
;
616 int64_t stream_instance_id
= -1;
617 int64_t begin_ns
= -1;
618 struct ctf_fs_ds_file_group
*ds_file_group
= NULL
;
619 bool add_group
= false;
622 struct ctf_fs_ds_file
*ds_file
= NULL
;
623 struct ctf_fs_ds_index
*index
= NULL
;
624 struct bt_msg_iter
*msg_iter
= NULL
;
625 struct ctf_stream_class
*sc
= NULL
;
626 struct bt_msg_iter_packet_properties props
;
628 msg_iter
= bt_msg_iter_create(ctf_fs_trace
->metadata
->tc
,
629 bt_common_get_page_size() * 8, ctf_fs_ds_file_medops
, NULL
);
631 BT_LOGE_STR("Cannot create a CTF message iterator.");
635 ds_file
= ctf_fs_ds_file_create(ctf_fs_trace
, NULL
, msg_iter
,
641 ret
= bt_msg_iter_get_packet_properties(ds_file
->msg_iter
, &props
);
643 BT_LOGE("Cannot get stream file's first packet's header and context fields (`%s`).",
648 sc
= ctf_trace_class_borrow_stream_class_by_id(ds_file
->metadata
->tc
,
649 props
.stream_class_id
);
651 stream_class
= sc
->ir_sc
;
652 BT_ASSERT(stream_class
);
653 stream_instance_id
= props
.data_stream_id
;
655 if (props
.snapshots
.beginning_clock
!= UINT64_C(-1)) {
656 BT_ASSERT(sc
->default_clock_class
);
657 ret
= bt_util_clock_cycles_to_ns_from_origin(
658 props
.snapshots
.beginning_clock
,
659 sc
->default_clock_class
->frequency
,
660 sc
->default_clock_class
->offset_seconds
,
661 sc
->default_clock_class
->offset_cycles
, &begin_ns
);
663 BT_LOGE("Cannot convert clock cycles to nanoseconds from origin (`%s`).",
669 index
= ctf_fs_ds_file_build_index(ds_file
);
671 BT_LOGW("Failed to index CTF stream file \'%s\'",
672 ds_file
->file
->path
->str
);
675 if (begin_ns
== -1) {
677 * No beggining timestamp to sort the stream files
678 * within a stream file group, so consider that this
679 * file must be the only one within its group.
681 stream_instance_id
= -1;
684 if (stream_instance_id
== -1) {
686 * No stream instance ID or no beginning timestamp:
687 * create a unique stream file group for this stream
688 * file because, even if there's a stream instance ID,
689 * there's no timestamp to order the file within its
692 ds_file_group
= ctf_fs_ds_file_group_create(ctf_fs_trace
,
693 stream_class
, stream_instance_id
);
694 if (!ds_file_group
) {
698 ret
= ctf_fs_ds_file_group_add_ds_file_info(ds_file_group
,
699 path
, begin_ns
, index
);
700 /* Ownership of index is transferred. */
710 BT_ASSERT(stream_instance_id
!= -1);
711 BT_ASSERT(begin_ns
!= -1);
713 /* Find an existing stream file group with this ID */
714 for (i
= 0; i
< ctf_fs_trace
->ds_file_groups
->len
; i
++) {
715 ds_file_group
= g_ptr_array_index(
716 ctf_fs_trace
->ds_file_groups
, i
);
718 if (ds_file_group
->stream_class
== stream_class
&&
719 ds_file_group
->stream_id
==
720 stream_instance_id
) {
724 ds_file_group
= NULL
;
727 if (!ds_file_group
) {
728 ds_file_group
= ctf_fs_ds_file_group_create(ctf_fs_trace
,
729 stream_class
, stream_instance_id
);
730 if (!ds_file_group
) {
737 ret
= ctf_fs_ds_file_group_add_ds_file_info(ds_file_group
, path
,
747 ctf_fs_ds_file_group_destroy(ds_file_group
);
751 if (add_group
&& ds_file_group
) {
752 g_ptr_array_add(ctf_fs_trace
->ds_file_groups
, ds_file_group
);
755 ctf_fs_ds_file_destroy(ds_file
);
758 bt_msg_iter_destroy(msg_iter
);
761 ctf_fs_ds_index_destroy(index
);
766 int create_ds_file_groups(struct ctf_fs_trace
*ctf_fs_trace
)
769 const char *basename
;
770 GError
*error
= NULL
;
774 /* Check each file in the path directory, except specific ones */
775 dir
= g_dir_open(ctf_fs_trace
->path
->str
, 0, &error
);
777 BT_LOGE("Cannot open directory `%s`: %s (code %d)",
778 ctf_fs_trace
->path
->str
, error
->message
,
783 while ((basename
= g_dir_read_name(dir
))) {
784 struct ctf_fs_file
*file
;
786 if (!strcmp(basename
, CTF_FS_METADATA_FILENAME
)) {
787 /* Ignore the metadata stream. */
788 BT_LOGD("Ignoring metadata file `%s" G_DIR_SEPARATOR_S
"%s`",
789 ctf_fs_trace
->path
->str
, basename
);
793 if (basename
[0] == '.') {
794 BT_LOGD("Ignoring hidden file `%s" G_DIR_SEPARATOR_S
"%s`",
795 ctf_fs_trace
->path
->str
, basename
);
799 /* Create the file. */
800 file
= ctf_fs_file_create();
802 BT_LOGE("Cannot create stream file object for file `%s" G_DIR_SEPARATOR_S
"%s`",
803 ctf_fs_trace
->path
->str
, basename
);
807 /* Create full path string. */
808 g_string_append_printf(file
->path
, "%s" G_DIR_SEPARATOR_S
"%s",
809 ctf_fs_trace
->path
->str
, basename
);
810 if (!g_file_test(file
->path
->str
, G_FILE_TEST_IS_REGULAR
)) {
811 BT_LOGD("Ignoring non-regular file `%s`",
813 ctf_fs_file_destroy(file
);
818 ret
= ctf_fs_file_open(file
, "rb");
820 BT_LOGE("Cannot open stream file `%s`", file
->path
->str
);
824 if (file
->size
== 0) {
825 /* Skip empty stream. */
826 BT_LOGD("Ignoring empty file `%s`", file
->path
->str
);
827 ctf_fs_file_destroy(file
);
831 ret
= add_ds_file_to_ds_file_group(ctf_fs_trace
,
834 BT_LOGE("Cannot add stream file `%s` to stream file group",
836 ctf_fs_file_destroy(file
);
840 ctf_fs_file_destroy(file
);
843 if (!ctf_fs_trace
->trace
) {
848 * At this point, DS file groupes are created, but their
849 * associated stream objects do not exist yet. This is because
850 * we need to name the created stream object with the data
851 * stream file's path. We have everything we need here to do
854 for (i
= 0; i
< ctf_fs_trace
->ds_file_groups
->len
; i
++) {
855 struct ctf_fs_ds_file_group
*ds_file_group
=
856 g_ptr_array_index(ctf_fs_trace
->ds_file_groups
, i
);
857 GString
*name
= get_stream_instance_unique_name(ds_file_group
);
863 if (ds_file_group
->stream_id
== UINT64_C(-1)) {
864 /* No stream ID: use 0 */
865 ds_file_group
->stream
= bt_stream_create_with_id(
866 ds_file_group
->stream_class
,
868 ctf_fs_trace
->next_stream_id
);
869 ctf_fs_trace
->next_stream_id
++;
871 /* Specific stream ID */
872 ds_file_group
->stream
= bt_stream_create_with_id(
873 ds_file_group
->stream_class
,
875 (uint64_t) ds_file_group
->stream_id
);
878 if (!ds_file_group
->stream
) {
879 BT_LOGE("Cannot create stream for DS file group: "
880 "addr=%p, stream-name=\"%s\"",
881 ds_file_group
, name
->str
);
882 g_string_free(name
, TRUE
);
886 ret
= bt_stream_set_name(ds_file_group
->stream
,
889 BT_LOGE("Cannot set stream's name: "
890 "addr=%p, stream-name=\"%s\"",
891 ds_file_group
->stream
, name
->str
);
892 g_string_free(name
, TRUE
);
896 g_string_free(name
, TRUE
);
918 int set_trace_name(bt_trace
*trace
, const char *name_suffix
)
921 const bt_trace_class
*tc
= bt_trace_borrow_class_const(trace
);
925 name
= g_string_new(NULL
);
927 BT_LOGE_STR("Failed to allocate a GString.");
933 * Check if we have a trace environment string value named `hostname`.
934 * If so, use it as the trace name's prefix.
936 val
= bt_trace_class_borrow_environment_entry_value_by_name_const(
938 if (val
&& bt_value_is_string(val
)) {
939 g_string_append(name
, bt_value_string_get(val
));
942 g_string_append_c(name
, G_DIR_SEPARATOR
);
947 g_string_append(name
, name_suffix
);
950 ret
= bt_trace_set_name(trace
, name
->str
);
959 g_string_free(name
, TRUE
);
966 struct ctf_fs_trace
*ctf_fs_trace_create(bt_self_component_source
*self_comp
,
967 const char *path
, const char *name
,
968 struct ctf_fs_metadata_config
*metadata_config
)
970 struct ctf_fs_trace
*ctf_fs_trace
;
973 ctf_fs_trace
= g_new0(struct ctf_fs_trace
, 1);
978 ctf_fs_trace
->path
= g_string_new(path
);
979 if (!ctf_fs_trace
->path
) {
983 ctf_fs_trace
->name
= g_string_new(name
);
984 if (!ctf_fs_trace
->name
) {
988 ctf_fs_trace
->metadata
= g_new0(struct ctf_fs_metadata
, 1);
989 if (!ctf_fs_trace
->metadata
) {
993 ctf_fs_metadata_init(ctf_fs_trace
->metadata
);
994 ctf_fs_trace
->ds_file_groups
= g_ptr_array_new_with_free_func(
995 (GDestroyNotify
) ctf_fs_ds_file_group_destroy
);
996 if (!ctf_fs_trace
->ds_file_groups
) {
1000 ret
= ctf_fs_metadata_set_trace_class(self_comp
,
1001 ctf_fs_trace
, metadata_config
);
1006 if (ctf_fs_trace
->metadata
->trace_class
) {
1007 ctf_fs_trace
->trace
=
1008 bt_trace_create(ctf_fs_trace
->metadata
->trace_class
);
1009 if (!ctf_fs_trace
->trace
) {
1014 if (ctf_fs_trace
->trace
) {
1015 ret
= set_trace_name(ctf_fs_trace
->trace
, name
);
1021 ret
= create_ds_file_groups(ctf_fs_trace
);
1029 ctf_fs_trace_destroy(ctf_fs_trace
);
1030 ctf_fs_trace
= NULL
;
1033 return ctf_fs_trace
;
1037 int path_is_ctf_trace(const char *path
)
1039 GString
*metadata_path
= g_string_new(NULL
);
1042 if (!metadata_path
) {
1047 g_string_printf(metadata_path
, "%s" G_DIR_SEPARATOR_S
"%s", path
, CTF_FS_METADATA_FILENAME
);
1049 if (g_file_test(metadata_path
->str
, G_FILE_TEST_IS_REGULAR
)) {
1055 g_string_free(metadata_path
, TRUE
);
1060 int add_trace_path(GList
**trace_paths
, const char *path
)
1062 GString
*norm_path
= NULL
;
1065 norm_path
= bt_common_normalize_path(path
, NULL
);
1067 BT_LOGE("Failed to normalize path `%s`.", path
);
1072 // FIXME: Remove or ifdef for __MINGW32__
1073 if (strcmp(norm_path
->str
, "/") == 0) {
1074 BT_LOGE("Opening a trace in `/` is not supported.");
1079 *trace_paths
= g_list_prepend(*trace_paths
, norm_path
);
1080 BT_ASSERT(*trace_paths
);
1085 g_string_free(norm_path
, TRUE
);
1092 int ctf_fs_find_traces(GList
**trace_paths
, const char *start_path
)
1095 GError
*error
= NULL
;
1097 const char *basename
= NULL
;
1099 /* Check if the starting path is a CTF trace itself */
1100 ret
= path_is_ctf_trace(start_path
);
1107 * Stop recursion: a CTF trace cannot contain another
1110 ret
= add_trace_path(trace_paths
, start_path
);
1114 /* Look for subdirectories */
1115 if (!g_file_test(start_path
, G_FILE_TEST_IS_DIR
)) {
1116 /* Starting path is not a directory: end of recursion */
1120 dir
= g_dir_open(start_path
, 0, &error
);
1122 if (error
->code
== G_FILE_ERROR_ACCES
) {
1123 BT_LOGD("Cannot open directory `%s`: %s (code %d): continuing",
1124 start_path
, error
->message
, error
->code
);
1128 BT_LOGE("Cannot open directory `%s`: %s (code %d)",
1129 start_path
, error
->message
, error
->code
);
1134 while ((basename
= g_dir_read_name(dir
))) {
1135 GString
*sub_path
= g_string_new(NULL
);
1142 g_string_printf(sub_path
, "%s" G_DIR_SEPARATOR_S
"%s", start_path
, basename
);
1143 ret
= ctf_fs_find_traces(trace_paths
, sub_path
->str
);
1144 g_string_free(sub_path
, TRUE
);
1156 g_error_free(error
);
1163 GList
*ctf_fs_create_trace_names(GList
*trace_paths
, const char *base_path
) {
1164 GList
*trace_names
= NULL
;
1166 const char *last_sep
;
1170 * At this point we know that all the trace paths are
1171 * normalized, and so is the base path. This means that
1172 * they are absolute and they don't end with a separator.
1173 * We can simply find the location of the last separator
1174 * in the base path, which gives us the name of the actual
1175 * directory to look into, and use this location as the
1176 * start of each trace name within each trace path.
1180 * Base path: /home/user/my-traces/some-trace
1182 * - /home/user/my-traces/some-trace/host1/trace1
1183 * - /home/user/my-traces/some-trace/host1/trace2
1184 * - /home/user/my-traces/some-trace/host2/trace
1185 * - /home/user/my-traces/some-trace/other-trace
1187 * In this case the trace names are:
1189 * - some-trace/host1/trace1
1190 * - some-trace/host1/trace2
1191 * - some-trace/host2/trace
1192 * - some-trace/other-trace
1194 last_sep
= strrchr(base_path
, G_DIR_SEPARATOR
);
1196 /* We know there's at least one separator */
1197 BT_ASSERT(last_sep
);
1199 /* Distance to base */
1200 base_dist
= last_sep
- base_path
+ 1;
1202 /* Create the trace names */
1203 for (node
= trace_paths
; node
; node
= g_list_next(node
)) {
1204 GString
*trace_name
= g_string_new(NULL
);
1205 GString
*trace_path
= node
->data
;
1207 BT_ASSERT(trace_name
);
1208 g_string_assign(trace_name
, &trace_path
->str
[base_dist
]);
1209 trace_names
= g_list_append(trace_names
, trace_name
);
1216 int create_ctf_fs_traces(bt_self_component_source
*self_comp
,
1217 struct ctf_fs_component
*ctf_fs
,
1218 const char *path_param
)
1220 struct ctf_fs_trace
*ctf_fs_trace
= NULL
;
1222 GString
*norm_path
= NULL
;
1223 GList
*trace_paths
= NULL
;
1224 GList
*trace_names
= NULL
;
1228 norm_path
= bt_common_normalize_path(path_param
, NULL
);
1230 BT_LOGE("Failed to normalize path: `%s`.",
1235 ret
= ctf_fs_find_traces(&trace_paths
, norm_path
->str
);
1241 BT_LOGE("No CTF traces recursively found in `%s`.",
1246 trace_names
= ctf_fs_create_trace_names(trace_paths
, norm_path
->str
);
1248 BT_LOGE("Cannot create trace names from trace paths.");
1252 for (tp_node
= trace_paths
, tn_node
= trace_names
; tp_node
;
1253 tp_node
= g_list_next(tp_node
),
1254 tn_node
= g_list_next(tn_node
)) {
1255 GString
*trace_path
= tp_node
->data
;
1256 GString
*trace_name
= tn_node
->data
;
1258 ctf_fs_trace
= ctf_fs_trace_create(self_comp
,
1259 trace_path
->str
, trace_name
->str
,
1260 &ctf_fs
->metadata_config
);
1261 if (!ctf_fs_trace
) {
1262 BT_LOGE("Cannot create trace for `%s`.",
1267 ret
= create_ports_for_trace(ctf_fs
, ctf_fs_trace
);
1272 g_ptr_array_add(ctf_fs
->traces
, ctf_fs_trace
);
1273 ctf_fs_trace
= NULL
;
1280 ctf_fs_trace_destroy(ctf_fs_trace
);
1283 for (tp_node
= trace_paths
; tp_node
; tp_node
= g_list_next(tp_node
)) {
1284 if (tp_node
->data
) {
1285 g_string_free(tp_node
->data
, TRUE
);
1289 for (tn_node
= trace_names
; tn_node
; tn_node
= g_list_next(tn_node
)) {
1290 if (tn_node
->data
) {
1291 g_string_free(tn_node
->data
, TRUE
);
1296 g_list_free(trace_paths
);
1300 g_list_free(trace_names
);
1304 g_string_free(norm_path
, TRUE
);
1311 struct ctf_fs_component
*ctf_fs_create(
1312 bt_self_component_source
*self_comp
,
1313 const bt_value
*params
)
1315 struct ctf_fs_component
*ctf_fs
;
1316 const bt_value
*value
= NULL
;
1317 const char *path_param
;
1319 ctf_fs
= g_new0(struct ctf_fs_component
, 1);
1324 bt_self_component_set_data(
1325 bt_self_component_source_as_self_component(self_comp
),
1329 * We don't need to get a new reference here because as long as
1330 * our private ctf_fs_component object exists, the containing
1331 * private component should also exist.
1333 ctf_fs
->self_comp
= self_comp
;
1334 value
= bt_value_map_borrow_entry_value_const(params
, "path");
1335 if (value
&& !bt_value_is_string(value
)) {
1339 path_param
= bt_value_string_get(value
);
1340 value
= bt_value_map_borrow_entry_value_const(params
,
1341 "clock-class-offset-s");
1343 if (!bt_value_is_integer(value
)) {
1344 BT_LOGE("clock-class-offset-s should be an integer");
1347 ctf_fs
->metadata_config
.clock_class_offset_s
= bt_value_integer_get(value
);
1350 value
= bt_value_map_borrow_entry_value_const(params
,
1351 "clock-class-offset-ns");
1353 if (!bt_value_is_integer(value
)) {
1354 BT_LOGE("clock-class-offset-ns should be an integer");
1357 ctf_fs
->metadata_config
.clock_class_offset_ns
= bt_value_integer_get(value
);
1360 ctf_fs
->port_data
= g_ptr_array_new_with_free_func(port_data_destroy
);
1361 if (!ctf_fs
->port_data
) {
1365 ctf_fs
->traces
= g_ptr_array_new_with_free_func(
1366 ctf_fs_trace_destroy_notifier
);
1367 if (!ctf_fs
->traces
) {
1371 if (create_ctf_fs_traces(self_comp
, ctf_fs
, path_param
)) {
1378 ctf_fs_destroy(ctf_fs
);
1380 bt_self_component_set_data(
1381 bt_self_component_source_as_self_component(self_comp
),
1389 bt_self_component_status
ctf_fs_init(
1390 bt_self_component_source
*self_comp
,
1391 const bt_value
*params
, UNUSED_VAR
void *init_method_data
)
1393 struct ctf_fs_component
*ctf_fs
;
1394 bt_self_component_status ret
= BT_SELF_COMPONENT_STATUS_OK
;
1396 ctf_fs
= ctf_fs_create(self_comp
, params
);
1398 ret
= BT_SELF_COMPONENT_STATUS_ERROR
;
1405 bt_query_status
ctf_fs_query(
1406 bt_self_component_class_source
*comp_class
,
1407 const bt_query_executor
*query_exec
,
1408 const char *object
, const bt_value
*params
,
1409 const bt_value
**result
)
1411 bt_query_status status
= BT_QUERY_STATUS_OK
;
1413 if (!strcmp(object
, "metadata-info")) {
1414 status
= metadata_info_query(comp_class
, params
, result
);
1415 } else if (!strcmp(object
, "trace-info")) {
1416 status
= trace_info_query(comp_class
, params
, result
);
1418 BT_LOGE("Unknown query object `%s`", object
);
1419 status
= BT_QUERY_STATUS_INVALID_OBJECT
;