2 * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License, version 2 only, as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc., 51
15 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include <common/common.h>
23 #include <common/hashtable/utils.h>
24 #include <lttng/lttng.h>
26 #include "ust-registry.h"
31 * Hash table match function for event in the registry.
33 static int ht_match_event(struct cds_lfht_node
*node
, const void *_key
)
35 struct ust_registry_event
*event
;
36 const struct ust_registry_event
*key
;
41 event
= caa_container_of(node
, struct ust_registry_event
, node
.node
);
45 /* It has to be a perfect match. */
46 if (strncmp(event
->name
, key
->name
, sizeof(event
->name
))) {
50 /* It has to be a perfect match. */
51 if (strncmp(event
->signature
, key
->signature
,
52 strlen(event
->signature
))) {
63 static unsigned long ht_hash_event(void *_key
, unsigned long seed
)
66 struct ust_registry_event
*key
= _key
;
70 xored_key
= (uint64_t) (hash_key_str(key
->name
, seed
) ^
71 hash_key_str(key
->signature
, seed
));
73 return hash_key_u64(&xored_key
, seed
);
76 static int compare_enums(const struct ust_registry_enum
*reg_enum_a
,
77 const struct ust_registry_enum
*reg_enum_b
)
82 assert(strcmp(reg_enum_a
->name
, reg_enum_b
->name
) == 0);
83 if (reg_enum_a
->nr_entries
!= reg_enum_b
->nr_entries
) {
87 for (i
= 0; i
< reg_enum_a
->nr_entries
; i
++) {
88 const struct ustctl_enum_entry
*entries_a
, *entries_b
;
90 entries_a
= ®_enum_a
->entries
[i
];
91 entries_b
= ®_enum_b
->entries
[i
];
92 if (entries_a
->start
.value
!= entries_b
->start
.value
) {
96 if (entries_a
->end
.value
!= entries_b
->end
.value
) {
100 if (entries_a
->start
.signedness
!= entries_b
->start
.signedness
) {
104 if (entries_a
->end
.signedness
!= entries_b
->end
.signedness
) {
109 if (strcmp(entries_a
->string
, entries_b
->string
)) {
119 * Hash table match function for enumerations in the session. Match is
120 * performed on enumeration name, and confirmed by comparing the enum
123 static int ht_match_enum(struct cds_lfht_node
*node
, const void *_key
)
125 struct ust_registry_enum
*_enum
;
126 const struct ust_registry_enum
*key
;
131 _enum
= caa_container_of(node
, struct ust_registry_enum
,
136 if (strncmp(_enum
->name
, key
->name
, LTTNG_UST_SYM_NAME_LEN
)) {
139 if (compare_enums(_enum
, key
)) {
151 * Hash table match function for enumerations in the session. Match is
152 * performed by enumeration ID.
154 static int ht_match_enum_id(struct cds_lfht_node
*node
, const void *_key
)
156 struct ust_registry_enum
*_enum
;
157 const struct ust_registry_enum
*key
= _key
;
162 _enum
= caa_container_of(node
, struct ust_registry_enum
, node
.node
);
165 if (_enum
->id
!= key
->id
) {
177 * Hash table hash function for enumerations in the session. The
178 * enumeration name is used for hashing.
180 static unsigned long ht_hash_enum(void *_key
, unsigned long seed
)
182 struct ust_registry_enum
*key
= _key
;
185 return hash_key_str(key
->name
, seed
);
189 * Return negative value on error, 0 if OK.
191 * TODO: we could add stricter verification of more types to catch
192 * errors in liblttng-ust implementation earlier than consumption by the
196 int validate_event_field(struct ustctl_field
*field
,
197 const char *event_name
,
202 switch(field
->type
.atype
) {
203 case ustctl_atype_integer
:
204 case ustctl_atype_enum
:
205 case ustctl_atype_array
:
206 case ustctl_atype_sequence
:
207 case ustctl_atype_string
:
208 case ustctl_atype_variant
:
210 case ustctl_atype_struct
:
211 if (field
->type
.u
._struct
.nr_fields
!= 0) {
212 WARN("Unsupported non-empty struct field.");
218 case ustctl_atype_float
:
219 switch (field
->type
.u
.basic
._float
.mant_dig
) {
221 WARN("UST application '%s' (pid: %d) has unknown float mantissa '%u' "
222 "in field '%s', rejecting event '%s'",
224 field
->type
.u
.basic
._float
.mant_dig
,
243 int validate_event_fields(size_t nr_fields
, struct ustctl_field
*fields
,
244 const char *event_name
, struct ust_app
*app
)
248 for (i
= 0; i
< nr_fields
; i
++) {
249 if (validate_event_field(&fields
[i
], event_name
, app
) < 0)
256 * Allocate event and initialize it. This does NOT set a valid event id from a
259 static struct ust_registry_event
*alloc_event(int session_objd
,
260 int channel_objd
, char *name
, char *sig
, size_t nr_fields
,
261 struct ustctl_field
*fields
, int loglevel_value
,
262 char *model_emf_uri
, struct ust_app
*app
)
264 struct ust_registry_event
*event
= NULL
;
267 * Ensure that the field content is valid.
269 if (validate_event_fields(nr_fields
, fields
, name
, app
) < 0) {
273 event
= zmalloc(sizeof(*event
));
275 PERROR("zmalloc ust registry event");
279 event
->session_objd
= session_objd
;
280 event
->channel_objd
= channel_objd
;
281 /* Allocated by ustctl. */
282 event
->signature
= sig
;
283 event
->nr_fields
= nr_fields
;
284 event
->fields
= fields
;
285 event
->loglevel_value
= loglevel_value
;
286 event
->model_emf_uri
= model_emf_uri
;
288 /* Copy event name and force NULL byte. */
289 strncpy(event
->name
, name
, sizeof(event
->name
));
290 event
->name
[sizeof(event
->name
) - 1] = '\0';
292 cds_lfht_node_init(&event
->node
.node
);
299 * Free event data structure. This does NOT delete it from any hash table. It's
300 * safe to pass a NULL pointer. This shoudl be called inside a call RCU if the
301 * event is previously deleted from a rcu hash table.
303 static void destroy_event(struct ust_registry_event
*event
)
310 free(event
->model_emf_uri
);
311 free(event
->signature
);
316 * Destroy event function call of the call RCU.
318 static void destroy_event_rcu(struct rcu_head
*head
)
320 struct lttng_ht_node_u64
*node
=
321 caa_container_of(head
, struct lttng_ht_node_u64
, head
);
322 struct ust_registry_event
*event
=
323 caa_container_of(node
, struct ust_registry_event
, node
);
325 destroy_event(event
);
329 * Find an event using the name and signature in the given registry. RCU read
330 * side lock MUST be acquired before calling this function and as long as the
331 * event reference is kept by the caller.
333 * On success, the event pointer is returned else NULL.
335 struct ust_registry_event
*ust_registry_find_event(
336 struct ust_registry_channel
*chan
, char *name
, char *sig
)
338 struct lttng_ht_node_u64
*node
;
339 struct lttng_ht_iter iter
;
340 struct ust_registry_event
*event
= NULL
;
341 struct ust_registry_event key
;
347 /* Setup key for the match function. */
348 strncpy(key
.name
, name
, sizeof(key
.name
));
349 key
.name
[sizeof(key
.name
) - 1] = '\0';
352 cds_lfht_lookup(chan
->ht
->ht
, chan
->ht
->hash_fct(&key
, lttng_ht_seed
),
353 chan
->ht
->match_fct
, &key
, &iter
.iter
);
354 node
= lttng_ht_iter_get_node_u64(&iter
);
358 event
= caa_container_of(node
, struct ust_registry_event
, node
);
365 * Create a ust_registry_event from the given parameters and add it to the
366 * registry hash table. If event_id is valid, it is set with the newly created
369 * On success, return 0 else a negative value. The created event MUST be unique
370 * so on duplicate entry -EINVAL is returned. On error, event_id is untouched.
372 * Should be called with session registry mutex held.
374 int ust_registry_create_event(struct ust_registry_session
*session
,
375 uint64_t chan_key
, int session_objd
, int channel_objd
, char *name
,
376 char *sig
, size_t nr_fields
, struct ustctl_field
*fields
,
377 int loglevel_value
, char *model_emf_uri
, int buffer_type
,
378 uint32_t *event_id_p
, struct ust_app
*app
)
382 struct cds_lfht_node
*nptr
;
383 struct ust_registry_event
*event
= NULL
;
384 struct ust_registry_channel
*chan
;
394 * This should not happen but since it comes from the UST tracer, an
395 * external party, don't assert and simply validate values.
397 if (session_objd
< 0 || channel_objd
< 0) {
402 chan
= ust_registry_channel_find(session
, chan_key
);
408 /* Check if we've reached the maximum possible id. */
409 if (ust_registry_is_max_id(chan
->used_event_id
)) {
414 event
= alloc_event(session_objd
, channel_objd
, name
, sig
, nr_fields
,
415 fields
, loglevel_value
, model_emf_uri
, app
);
421 DBG3("UST registry creating event with event: %s, sig: %s, id: %u, "
422 "chan_objd: %u, sess_objd: %u, chan_id: %u", event
->name
,
423 event
->signature
, event
->id
, event
->channel_objd
,
424 event
->session_objd
, chan
->chan_id
);
427 * This is an add unique with a custom match function for event. The node
428 * are matched using the event name and signature.
430 nptr
= cds_lfht_add_unique(chan
->ht
->ht
, chan
->ht
->hash_fct(event
,
431 lttng_ht_seed
), chan
->ht
->match_fct
, event
, &event
->node
.node
);
432 if (nptr
!= &event
->node
.node
) {
433 if (buffer_type
== LTTNG_BUFFER_PER_UID
) {
435 * This is normal, we just have to send the event id of the
436 * returned node and make sure we destroy the previously allocated
439 destroy_event(event
);
440 event
= caa_container_of(nptr
, struct ust_registry_event
,
443 event_id
= event
->id
;
445 ERR("UST registry create event add unique failed for event: %s, "
446 "sig: %s, id: %u, chan_objd: %u, sess_objd: %u",
447 event
->name
, event
->signature
, event
->id
,
448 event
->channel_objd
, event
->session_objd
);
453 /* Request next event id if the node was successfully added. */
454 event_id
= event
->id
= ust_registry_get_next_event_id(chan
);
457 *event_id_p
= event_id
;
459 if (!event
->metadata_dumped
) {
460 /* Append to metadata */
461 ret
= ust_metadata_event_statedump(session
, chan
, event
);
463 ERR("Error appending event metadata (errno = %d)", ret
);
478 destroy_event(event
);
483 * For a given event in a registry, delete the entry and destroy the event.
484 * This MUST be called within a RCU read side lock section.
486 void ust_registry_destroy_event(struct ust_registry_channel
*chan
,
487 struct ust_registry_event
*event
)
490 struct lttng_ht_iter iter
;
495 /* Delete the node first. */
496 iter
.iter
.node
= &event
->node
.node
;
497 ret
= lttng_ht_del(chan
->ht
, &iter
);
500 call_rcu(&event
->node
.head
, destroy_event_rcu
);
505 static void destroy_enum(struct ust_registry_enum
*reg_enum
)
510 free(reg_enum
->entries
);
514 static void destroy_enum_rcu(struct rcu_head
*head
)
516 struct ust_registry_enum
*reg_enum
=
517 caa_container_of(head
, struct ust_registry_enum
, rcu_head
);
519 destroy_enum(reg_enum
);
523 * Lookup enumeration by name and comparing enumeration entries.
524 * Needs to be called from RCU read-side critical section.
526 struct ust_registry_enum
*
527 ust_registry_lookup_enum(struct ust_registry_session
*session
,
528 const struct ust_registry_enum
*reg_enum_lookup
)
530 struct ust_registry_enum
*reg_enum
= NULL
;
531 struct lttng_ht_node_str
*node
;
532 struct lttng_ht_iter iter
;
534 cds_lfht_lookup(session
->enums
->ht
,
535 ht_hash_enum((void *) ®_enum_lookup
, lttng_ht_seed
),
536 ht_match_enum
, ®_enum_lookup
, &iter
.iter
);
537 node
= lttng_ht_iter_get_node_str(&iter
);
541 reg_enum
= caa_container_of(node
, struct ust_registry_enum
, node
);
547 * Lookup enumeration by enum ID.
548 * Needs to be called from RCU read-side critical section.
550 struct ust_registry_enum
*
551 ust_registry_lookup_enum_by_id(struct ust_registry_session
*session
,
552 const char *enum_name
, uint64_t enum_id
)
554 struct ust_registry_enum
*reg_enum
= NULL
;
555 struct lttng_ht_node_str
*node
;
556 struct lttng_ht_iter iter
;
557 struct ust_registry_enum reg_enum_lookup
;
559 memset(®_enum_lookup
, 0, sizeof(reg_enum_lookup
));
560 strncpy(reg_enum_lookup
.name
, enum_name
, LTTNG_UST_SYM_NAME_LEN
);
561 reg_enum_lookup
.name
[LTTNG_UST_SYM_NAME_LEN
- 1] = '\0';
562 reg_enum_lookup
.id
= enum_id
;
563 cds_lfht_lookup(session
->enums
->ht
,
564 ht_hash_enum((void *) ®_enum_lookup
, lttng_ht_seed
),
565 ht_match_enum_id
, ®_enum_lookup
, &iter
.iter
);
566 node
= lttng_ht_iter_get_node_str(&iter
);
570 reg_enum
= caa_container_of(node
, struct ust_registry_enum
, node
);
576 * Create a ust_registry_enum from the given parameters and add it to the
577 * registry hash table, or find it if already there.
579 * On success, return 0 else a negative value.
581 * Should be called with session registry mutex held.
583 * We receive ownership of entries.
585 int ust_registry_create_or_find_enum(struct ust_registry_session
*session
,
586 int session_objd
, char *enum_name
,
587 struct ustctl_enum_entry
*entries
, size_t nr_entries
,
591 struct cds_lfht_node
*nodep
;
592 struct ust_registry_enum
*reg_enum
= NULL
, *old_reg_enum
;
600 * This should not happen but since it comes from the UST tracer, an
601 * external party, don't assert and simply validate values.
603 if (session_objd
< 0) {
608 /* Check if the enumeration was already dumped */
609 reg_enum
= zmalloc(sizeof(*reg_enum
));
611 PERROR("zmalloc ust registry enumeration");
615 strncpy(reg_enum
->name
, enum_name
, LTTNG_UST_SYM_NAME_LEN
);
616 reg_enum
->name
[LTTNG_UST_SYM_NAME_LEN
- 1] = '\0';
617 /* entries will be owned by reg_enum. */
618 reg_enum
->entries
= entries
;
619 reg_enum
->nr_entries
= nr_entries
;
622 old_reg_enum
= ust_registry_lookup_enum(session
, reg_enum
);
624 DBG("enum %s already in sess_objd: %u", enum_name
, session_objd
);
625 /* Fall through. Use prior enum. */
626 destroy_enum(reg_enum
);
627 reg_enum
= old_reg_enum
;
629 DBG("UST registry creating enum: %s, sess_objd: %u",
630 enum_name
, session_objd
);
631 if (session
->next_enum_id
== -1ULL) {
633 destroy_enum(reg_enum
);
636 reg_enum
->id
= session
->next_enum_id
++;
637 cds_lfht_node_init(®_enum
->node
.node
);
638 nodep
= cds_lfht_add_unique(session
->enums
->ht
,
639 ht_hash_enum(reg_enum
, lttng_ht_seed
),
640 ht_match_enum_id
, reg_enum
,
641 ®_enum
->node
.node
);
642 assert(nodep
== ®_enum
->node
.node
);
644 DBG("UST registry reply with enum %s with id %" PRIu64
" in sess_objd: %u",
645 enum_name
, reg_enum
->id
, session_objd
);
646 *enum_id
= reg_enum
->id
;
654 * For a given enumeration in a registry, delete the entry and destroy
656 * This MUST be called within a RCU read side lock section.
658 void ust_registry_destroy_enum(struct ust_registry_session
*reg_session
,
659 struct ust_registry_enum
*reg_enum
)
662 struct lttng_ht_iter iter
;
667 /* Delete the node first. */
668 iter
.iter
.node
= ®_enum
->node
.node
;
669 ret
= lttng_ht_del(reg_session
->enums
, &iter
);
671 call_rcu(®_enum
->rcu_head
, destroy_enum_rcu
);
675 * We need to execute ht_destroy outside of RCU read-side critical
676 * section and outside of call_rcu thread, so we postpone its execution
677 * using ht_cleanup_push. It is simpler than to change the semantic of
678 * the many callers of delete_ust_app_session().
681 void destroy_channel_rcu(struct rcu_head
*head
)
683 struct ust_registry_channel
*chan
=
684 caa_container_of(head
, struct ust_registry_channel
, rcu_head
);
687 ht_cleanup_push(chan
->ht
);
689 free(chan
->ctx_fields
);
694 * Destroy every element of the registry and free the memory. This does NOT
695 * free the registry pointer since it might not have been allocated before so
696 * it's the caller responsability.
698 static void destroy_channel(struct ust_registry_channel
*chan
)
700 struct lttng_ht_iter iter
;
701 struct ust_registry_event
*event
;
706 /* Destroy all event associated with this registry. */
707 cds_lfht_for_each_entry(chan
->ht
->ht
, &iter
.iter
, event
, node
.node
) {
708 /* Delete the node from the ht and free it. */
709 ust_registry_destroy_event(chan
, event
);
712 call_rcu(&chan
->rcu_head
, destroy_channel_rcu
);
716 * Initialize registry with default values.
718 int ust_registry_channel_add(struct ust_registry_session
*session
,
722 struct ust_registry_channel
*chan
;
726 chan
= zmalloc(sizeof(*chan
));
728 PERROR("zmalloc ust registry channel");
733 chan
->ht
= lttng_ht_new(0, LTTNG_HT_TYPE_STRING
);
739 /* Set custom match function. */
740 chan
->ht
->match_fct
= ht_match_event
;
741 chan
->ht
->hash_fct
= ht_hash_event
;
744 * Assign a channel ID right now since the event notification comes
745 * *before* the channel notify so the ID needs to be set at this point so
746 * the metadata can be dumped for that event.
748 if (ust_registry_is_max_id(session
->used_channel_id
)) {
752 chan
->chan_id
= ust_registry_get_next_chan_id(session
);
755 lttng_ht_node_init_u64(&chan
->node
, key
);
756 lttng_ht_add_unique_u64(session
->channels
, &chan
->node
);
762 destroy_channel(chan
);
768 * Find a channel in the given registry. RCU read side lock MUST be acquired
769 * before calling this function and as long as the event reference is kept by
772 * On success, the pointer is returned else NULL.
774 struct ust_registry_channel
*ust_registry_channel_find(
775 struct ust_registry_session
*session
, uint64_t key
)
777 struct lttng_ht_node_u64
*node
;
778 struct lttng_ht_iter iter
;
779 struct ust_registry_channel
*chan
= NULL
;
782 assert(session
->channels
);
784 DBG3("UST registry channel finding key %" PRIu64
, key
);
786 lttng_ht_lookup(session
->channels
, &key
, &iter
);
787 node
= lttng_ht_iter_get_node_u64(&iter
);
791 chan
= caa_container_of(node
, struct ust_registry_channel
, node
);
798 * Remove channel using key from registry and free memory.
800 void ust_registry_channel_del_free(struct ust_registry_session
*session
,
803 struct lttng_ht_iter iter
;
804 struct ust_registry_channel
*chan
;
810 chan
= ust_registry_channel_find(session
, key
);
816 iter
.iter
.node
= &chan
->node
.node
;
817 ret
= lttng_ht_del(session
->channels
, &iter
);
820 destroy_channel(chan
);
827 * Initialize registry with default values and set the newly allocated session
828 * pointer to sessionp.
830 * Return 0 on success and sessionp is set or else return -1 and sessionp is
833 int ust_registry_session_init(struct ust_registry_session
**sessionp
,
835 uint32_t bits_per_long
,
836 uint32_t uint8_t_alignment
,
837 uint32_t uint16_t_alignment
,
838 uint32_t uint32_t_alignment
,
839 uint32_t uint64_t_alignment
,
840 uint32_t long_alignment
,
844 const char *root_shm_path
,
845 const char *shm_path
,
850 struct ust_registry_session
*session
;
854 session
= zmalloc(sizeof(*session
));
856 PERROR("zmalloc ust registry session");
860 pthread_mutex_init(&session
->lock
, NULL
);
861 session
->bits_per_long
= bits_per_long
;
862 session
->uint8_t_alignment
= uint8_t_alignment
;
863 session
->uint16_t_alignment
= uint16_t_alignment
;
864 session
->uint32_t_alignment
= uint32_t_alignment
;
865 session
->uint64_t_alignment
= uint64_t_alignment
;
866 session
->long_alignment
= long_alignment
;
867 session
->byte_order
= byte_order
;
868 session
->metadata_fd
= -1;
871 session
->next_enum_id
= 0;
872 session
->major
= major
;
873 session
->minor
= minor
;
874 strncpy(session
->root_shm_path
, root_shm_path
,
875 sizeof(session
->root_shm_path
));
876 session
->root_shm_path
[sizeof(session
->root_shm_path
) - 1] = '\0';
878 strncpy(session
->shm_path
, shm_path
,
879 sizeof(session
->shm_path
));
880 session
->shm_path
[sizeof(session
->shm_path
) - 1] = '\0';
881 strncpy(session
->metadata_path
, shm_path
,
882 sizeof(session
->metadata_path
));
883 session
->metadata_path
[sizeof(session
->metadata_path
) - 1] = '\0';
884 strncat(session
->metadata_path
, "/metadata",
885 sizeof(session
->metadata_path
)
886 - strlen(session
->metadata_path
) - 1);
888 if (session
->shm_path
[0]) {
889 ret
= run_as_mkdir_recursive(session
->shm_path
,
893 PERROR("run_as_mkdir_recursive");
897 if (session
->metadata_path
[0]) {
898 /* Create metadata file */
899 ret
= run_as_open(session
->metadata_path
,
900 O_WRONLY
| O_CREAT
| O_EXCL
,
901 S_IRUSR
| S_IWUSR
, euid
, egid
);
903 PERROR("Opening metadata file");
906 session
->metadata_fd
= ret
;
909 session
->enums
= lttng_ht_new(0, LTTNG_HT_TYPE_STRING
);
910 if (!session
->enums
) {
914 /* hash/match functions are specified at call site. */
915 session
->enums
->match_fct
= NULL
;
916 session
->enums
->hash_fct
= NULL
;
918 session
->channels
= lttng_ht_new(0, LTTNG_HT_TYPE_U64
);
919 if (!session
->channels
) {
923 ret
= lttng_uuid_generate(session
->uuid
);
925 ERR("Failed to generate UST uuid (errno = %d)", ret
);
929 pthread_mutex_lock(&session
->lock
);
930 ret
= ust_metadata_session_statedump(session
, app
, major
, minor
);
931 pthread_mutex_unlock(&session
->lock
);
933 ERR("Failed to generate session metadata (errno = %d)", ret
);
942 ust_registry_session_destroy(session
);
949 * Destroy session registry. This does NOT free the given pointer since it
950 * might get passed as a reference. The registry lock should NOT be acquired.
952 void ust_registry_session_destroy(struct ust_registry_session
*reg
)
955 struct lttng_ht_iter iter
;
956 struct ust_registry_channel
*chan
;
957 struct ust_registry_enum
*reg_enum
;
963 /* On error, EBUSY can be returned if lock. Code flow error. */
964 ret
= pthread_mutex_destroy(®
->lock
);
969 /* Destroy all event associated with this registry. */
970 cds_lfht_for_each_entry(reg
->channels
->ht
, &iter
.iter
, chan
,
972 /* Delete the node from the ht and free it. */
973 ret
= lttng_ht_del(reg
->channels
, &iter
);
975 destroy_channel(chan
);
978 ht_cleanup_push(reg
->channels
);
982 if (reg
->metadata_fd
>= 0) {
983 ret
= close(reg
->metadata_fd
);
987 ret
= run_as_unlink(reg
->metadata_path
,
993 if (reg
->root_shm_path
[0]) {
995 * Try deleting the directory hierarchy.
997 (void) run_as_recursive_rmdir(reg
->root_shm_path
,
1000 /* Destroy the enum hash table */
1003 /* Destroy all enum entries associated with this registry. */
1004 cds_lfht_for_each_entry(reg
->enums
->ht
, &iter
.iter
, reg_enum
,
1006 ust_registry_destroy_enum(reg
, reg_enum
);
1009 ht_cleanup_push(reg
->enums
);