2 Unix SMB/CIFS implementation.
3 Samba internal messaging functions
4 Copyright (C) Andrew Tridgell 2000
5 Copyright (C) 2001 by Martin Pool
6 Copyright (C) 2002 by Jeremy Allison
7 Copyright (C) 2007 by Volker Lendecke
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 @defgroup messages Internal messaging framework
28 @brief Module for internal messaging between Samba daemons.
30 The idea is that if a part of Samba wants to do communication with
31 another Samba process then it will do a message_register() of a
32 dispatch function, and use message_send_pid() to send messages to
35 The dispatch function is given the pid of the sender, and it can
36 use that to reply by message_send_pid(). See ping_message() for a
39 @caution Dispatch functions must be able to cope with incoming
40 messages on an *odd* byte boundary.
42 This system doesn't have any inherent size limitations but is not
43 very efficient for large messages or when messages are sent in very
49 #include "dbwrap/dbwrap.h"
52 #include "lib/util/tevent_unix.h"
53 #include "lib/background.h"
55 struct messaging_callback
{
56 struct messaging_callback
*prev
, *next
;
58 void (*fn
)(struct messaging_context
*msg
, void *private_data
,
60 struct server_id server_id
, DATA_BLOB
*data
);
64 struct messaging_context
{
66 struct tevent_context
*event_ctx
;
67 struct messaging_callback
*callbacks
;
69 struct tevent_req
**new_waiters
;
70 unsigned num_new_waiters
;
72 struct tevent_req
**waiters
;
75 struct messaging_backend
*local
;
76 struct messaging_backend
*remote
;
81 static int messaging_context_destructor(struct messaging_context
*msg_ctx
);
83 /****************************************************************************
84 A useful function for testing the message system.
85 ****************************************************************************/
87 static void ping_message(struct messaging_context
*msg_ctx
,
93 const char *msg
= "none";
96 if (data
->data
!= NULL
) {
97 free_me
= talloc_strndup(talloc_tos(), (char *)data
->data
,
101 DEBUG(1,("INFO: Received PING message from PID %s [%s]\n",
102 procid_str_static(&src
), msg
));
103 TALLOC_FREE(free_me
);
104 messaging_send(msg_ctx
, src
, MSG_PONG
, data
);
107 /****************************************************************************
108 Register/replace a dispatch function for a particular message type.
109 JRA changed Dec 13 2006. Only one message handler now permitted per type.
110 *NOTE*: Dispatch functions must be able to cope with incoming
111 messages on an *odd* byte boundary.
112 ****************************************************************************/
115 struct messaging_context
*msg_ctx
;
123 /****************************************************************************
124 Send one of the messages for the broadcast.
125 ****************************************************************************/
127 static int traverse_fn(struct db_record
*rec
, const struct server_id
*id
,
128 uint32_t msg_flags
, void *state
)
130 struct msg_all
*msg_all
= (struct msg_all
*)state
;
133 /* Don't send if the receiver hasn't registered an interest. */
135 if((msg_flags
& msg_all
->msg_flag
) == 0) {
139 /* If the msg send fails because the pid was not found (i.e. smbd died),
140 * the msg has already been deleted from the messages.tdb.*/
142 status
= messaging_send_buf(msg_all
->msg_ctx
, *id
, msg_all
->msg_type
,
143 (const uint8_t *)msg_all
->buf
, msg_all
->len
);
145 if (NT_STATUS_EQUAL(status
, NT_STATUS_INVALID_HANDLE
)) {
148 * If the pid was not found delete the entry from
152 DEBUG(2, ("pid %s doesn't exist\n", procid_str_static(id
)));
154 dbwrap_record_delete(rec
);
161 * Send a message to all smbd processes.
163 * It isn't very efficient, but should be OK for the sorts of
164 * applications that use it. When we need efficient broadcast we can add
167 * @param n_sent Set to the number of messages sent. This should be
168 * equal to the number of processes, but be careful for races.
170 * @retval True for success.
172 bool message_send_all(struct messaging_context
*msg_ctx
,
174 const void *buf
, size_t len
,
177 struct msg_all msg_all
;
179 msg_all
.msg_type
= msg_type
;
180 if (msg_type
< 0x100) {
181 msg_all
.msg_flag
= FLAG_MSG_GENERAL
;
182 } else if (msg_type
> 0x100 && msg_type
< 0x200) {
183 msg_all
.msg_flag
= FLAG_MSG_NMBD
;
184 } else if (msg_type
> 0x200 && msg_type
< 0x300) {
185 msg_all
.msg_flag
= FLAG_MSG_PRINT_GENERAL
;
186 } else if (msg_type
> 0x300 && msg_type
< 0x400) {
187 msg_all
.msg_flag
= FLAG_MSG_SMBD
;
188 } else if (msg_type
> 0x400 && msg_type
< 0x600) {
189 msg_all
.msg_flag
= FLAG_MSG_WINBIND
;
190 } else if (msg_type
> 4000 && msg_type
< 5000) {
191 msg_all
.msg_flag
= FLAG_MSG_DBWRAP
;
199 msg_all
.msg_ctx
= msg_ctx
;
201 serverid_traverse(traverse_fn
, &msg_all
);
203 *n_sent
= msg_all
.n_sent
;
207 struct messaging_context
*messaging_init(TALLOC_CTX
*mem_ctx
,
208 struct tevent_context
*ev
)
210 struct messaging_context
*ctx
;
212 static bool have_context
= false;
215 DEBUG(0, ("No two messaging contexts per process\n"));
220 if (!(ctx
= talloc_zero(mem_ctx
, struct messaging_context
))) {
224 ctx
->id
= procid_self();
226 ctx
->have_context
= &have_context
;
228 status
= messaging_dgm_init(ctx
, ctx
, &ctx
->local
);
230 if (!NT_STATUS_IS_OK(status
)) {
231 DEBUG(2, ("messaging_dgm_init failed: %s\n",
237 if (lp_clustering()) {
238 status
= messaging_ctdbd_init(ctx
, ctx
, &ctx
->remote
);
240 if (!NT_STATUS_IS_OK(status
)) {
241 DEBUG(2, ("messaging_ctdbd_init failed: %s\n",
247 ctx
->id
.vnn
= get_my_vnn();
249 messaging_register(ctx
, NULL
, MSG_PING
, ping_message
);
251 /* Register some debugging related messages */
253 register_msg_pool_usage(ctx
);
254 register_dmalloc_msgs(ctx
);
255 debug_register_msgs(ctx
);
258 talloc_set_destructor(ctx
, messaging_context_destructor
);
263 static int messaging_context_destructor(struct messaging_context
*msg_ctx
)
265 SMB_ASSERT(*msg_ctx
->have_context
);
266 *msg_ctx
->have_context
= false;
270 struct server_id
messaging_server_id(const struct messaging_context
*msg_ctx
)
276 * re-init after a fork
278 NTSTATUS
messaging_reinit(struct messaging_context
*msg_ctx
)
282 TALLOC_FREE(msg_ctx
->local
);
284 msg_ctx
->id
= procid_self();
286 status
= messaging_dgm_init(msg_ctx
, msg_ctx
, &msg_ctx
->local
);
287 if (!NT_STATUS_IS_OK(status
)) {
288 DEBUG(0, ("messaging_dgm_init failed: %s\n",
293 TALLOC_FREE(msg_ctx
->remote
);
295 if (lp_clustering()) {
296 status
= messaging_ctdbd_init(msg_ctx
, msg_ctx
,
299 if (!NT_STATUS_IS_OK(status
)) {
300 DEBUG(1, ("messaging_ctdbd_init failed: %s\n",
311 * Register a dispatch function for a particular message type. Allow multiple
314 NTSTATUS
messaging_register(struct messaging_context
*msg_ctx
,
317 void (*fn
)(struct messaging_context
*msg
,
320 struct server_id server_id
,
323 struct messaging_callback
*cb
;
325 DEBUG(5, ("Registering messaging pointer for type %u - "
327 (unsigned)msg_type
, private_data
));
330 * Only one callback per type
333 for (cb
= msg_ctx
->callbacks
; cb
!= NULL
; cb
= cb
->next
) {
334 /* we allow a second registration of the same message
335 type if it has a different private pointer. This is
336 needed in, for example, the internal notify code,
337 which creates a new notify context for each tree
338 connect, and expects to receive messages to each of
340 if (cb
->msg_type
== msg_type
&& private_data
== cb
->private_data
) {
341 DEBUG(5,("Overriding messaging pointer for type %u - private_data=%p\n",
342 (unsigned)msg_type
, private_data
));
344 cb
->private_data
= private_data
;
349 if (!(cb
= talloc(msg_ctx
, struct messaging_callback
))) {
350 return NT_STATUS_NO_MEMORY
;
353 cb
->msg_type
= msg_type
;
355 cb
->private_data
= private_data
;
357 DLIST_ADD(msg_ctx
->callbacks
, cb
);
362 De-register the function for a particular message type.
364 void messaging_deregister(struct messaging_context
*ctx
, uint32_t msg_type
,
367 struct messaging_callback
*cb
, *next
;
369 for (cb
= ctx
->callbacks
; cb
; cb
= next
) {
371 if ((cb
->msg_type
== msg_type
)
372 && (cb
->private_data
== private_data
)) {
373 DEBUG(5,("Deregistering messaging pointer for type %u - private_data=%p\n",
374 (unsigned)msg_type
, private_data
));
375 DLIST_REMOVE(ctx
->callbacks
, cb
);
381 static bool messaging_is_self_send(const struct messaging_context
*msg_ctx
,
382 const struct server_id
*dst
)
384 return ((msg_ctx
->id
.vnn
== dst
->vnn
) &&
385 (msg_ctx
->id
.pid
== dst
->pid
));
389 Send a message to a particular server
391 NTSTATUS
messaging_send(struct messaging_context
*msg_ctx
,
392 struct server_id server
, uint32_t msg_type
,
393 const DATA_BLOB
*data
)
397 iov
.iov_base
= data
->data
;
398 iov
.iov_len
= data
->length
;
400 return messaging_send_iov(msg_ctx
, server
, msg_type
, &iov
, 1);
403 NTSTATUS
messaging_send_buf(struct messaging_context
*msg_ctx
,
404 struct server_id server
, uint32_t msg_type
,
405 const uint8_t *buf
, size_t len
)
407 DATA_BLOB blob
= data_blob_const(buf
, len
);
408 return messaging_send(msg_ctx
, server
, msg_type
, &blob
);
411 NTSTATUS
messaging_send_iov(struct messaging_context
*msg_ctx
,
412 struct server_id server
, uint32_t msg_type
,
413 const struct iovec
*iov
, int iovlen
)
415 if (server_id_is_disconnected(&server
)) {
416 return NT_STATUS_INVALID_PARAMETER_MIX
;
419 if (!procid_is_local(&server
)) {
420 return msg_ctx
->remote
->send_fn(msg_ctx
->id
, server
,
421 msg_type
, iov
, iovlen
,
425 if (messaging_is_self_send(msg_ctx
, &server
)) {
426 struct messaging_rec rec
;
430 buf
= iov_buf(talloc_tos(), iov
, iovlen
);
432 return NT_STATUS_NO_MEMORY
;
435 data
= data_blob_const(buf
, talloc_get_size(buf
));
437 rec
.msg_version
= MESSAGE_VERSION
;
438 rec
.msg_type
= msg_type
& MSG_TYPE_MASK
;
440 rec
.src
= msg_ctx
->id
;
442 messaging_dispatch_rec(msg_ctx
, &rec
);
447 return msg_ctx
->local
->send_fn(msg_ctx
->id
, server
, msg_type
,
448 iov
, iovlen
, msg_ctx
->local
);
451 static struct messaging_rec
*messaging_rec_dup(TALLOC_CTX
*mem_ctx
,
452 struct messaging_rec
*rec
)
454 struct messaging_rec
*result
;
456 result
= talloc_pooled_object(mem_ctx
, struct messaging_rec
,
458 if (result
== NULL
) {
463 /* Doesn't fail, see talloc_pooled_object */
465 result
->buf
.data
= talloc_memdup(result
, rec
->buf
.data
,
470 struct messaging_filtered_read_state
{
471 struct tevent_context
*ev
;
472 struct messaging_context
*msg_ctx
;
475 bool (*filter
)(struct messaging_rec
*rec
, void *private_data
);
478 struct messaging_rec
*rec
;
481 static void messaging_filtered_read_cleanup(struct tevent_req
*req
,
482 enum tevent_req_state req_state
);
484 struct tevent_req
*messaging_filtered_read_send(
485 TALLOC_CTX
*mem_ctx
, struct tevent_context
*ev
,
486 struct messaging_context
*msg_ctx
,
487 bool (*filter
)(struct messaging_rec
*rec
, void *private_data
),
490 struct tevent_req
*req
;
491 struct messaging_filtered_read_state
*state
;
492 size_t new_waiters_len
;
494 req
= tevent_req_create(mem_ctx
, &state
,
495 struct messaging_filtered_read_state
);
500 state
->msg_ctx
= msg_ctx
;
501 state
->filter
= filter
;
502 state
->private_data
= private_data
;
505 * We have to defer the callback here, as we might be called from
506 * within a different tevent_context than state->ev
508 tevent_req_defer_callback(req
, state
->ev
);
510 state
->tevent_handle
= messaging_dgm_register_tevent_context(
512 if (tevent_req_nomem(state
, req
)) {
513 return tevent_req_post(req
, ev
);
517 * We add ourselves to the "new_waiters" array, not the "waiters"
518 * array. If we are called from within messaging_read_done,
519 * messaging_dispatch_rec will be in an active for-loop on
520 * "waiters". We must be careful not to mess with this array, because
521 * it could mean that a single event is being delivered twice.
524 new_waiters_len
= talloc_array_length(msg_ctx
->new_waiters
);
526 if (new_waiters_len
== msg_ctx
->num_new_waiters
) {
527 struct tevent_req
**tmp
;
529 tmp
= talloc_realloc(msg_ctx
, msg_ctx
->new_waiters
,
530 struct tevent_req
*, new_waiters_len
+1);
531 if (tevent_req_nomem(tmp
, req
)) {
532 return tevent_req_post(req
, ev
);
534 msg_ctx
->new_waiters
= tmp
;
537 msg_ctx
->new_waiters
[msg_ctx
->num_new_waiters
] = req
;
538 msg_ctx
->num_new_waiters
+= 1;
539 tevent_req_set_cleanup_fn(req
, messaging_filtered_read_cleanup
);
544 static void messaging_filtered_read_cleanup(struct tevent_req
*req
,
545 enum tevent_req_state req_state
)
547 struct messaging_filtered_read_state
*state
= tevent_req_data(
548 req
, struct messaging_filtered_read_state
);
549 struct messaging_context
*msg_ctx
= state
->msg_ctx
;
552 tevent_req_set_cleanup_fn(req
, NULL
);
554 TALLOC_FREE(state
->tevent_handle
);
557 * Just set the [new_]waiters entry to NULL, be careful not to mess
558 * with the other "waiters" array contents. We are often called from
559 * within "messaging_dispatch_rec", which loops over
560 * "waiters". Messing with the "waiters" array will mess up that
564 for (i
=0; i
<msg_ctx
->num_waiters
; i
++) {
565 if (msg_ctx
->waiters
[i
] == req
) {
566 msg_ctx
->waiters
[i
] = NULL
;
571 for (i
=0; i
<msg_ctx
->num_new_waiters
; i
++) {
572 if (msg_ctx
->new_waiters
[i
] == req
) {
573 msg_ctx
->new_waiters
[i
] = NULL
;
579 static void messaging_filtered_read_done(struct tevent_req
*req
,
580 struct messaging_rec
*rec
)
582 struct messaging_filtered_read_state
*state
= tevent_req_data(
583 req
, struct messaging_filtered_read_state
);
585 state
->rec
= messaging_rec_dup(state
, rec
);
586 if (tevent_req_nomem(state
->rec
, req
)) {
589 tevent_req_done(req
);
592 int messaging_filtered_read_recv(struct tevent_req
*req
, TALLOC_CTX
*mem_ctx
,
593 struct messaging_rec
**presult
)
595 struct messaging_filtered_read_state
*state
= tevent_req_data(
596 req
, struct messaging_filtered_read_state
);
599 if (tevent_req_is_unix_error(req
, &err
)) {
600 tevent_req_received(req
);
603 *presult
= talloc_move(mem_ctx
, &state
->rec
);
607 struct messaging_read_state
{
609 struct messaging_rec
*rec
;
612 static bool messaging_read_filter(struct messaging_rec
*rec
,
614 static void messaging_read_done(struct tevent_req
*subreq
);
616 struct tevent_req
*messaging_read_send(TALLOC_CTX
*mem_ctx
,
617 struct tevent_context
*ev
,
618 struct messaging_context
*msg
,
621 struct tevent_req
*req
, *subreq
;
622 struct messaging_read_state
*state
;
624 req
= tevent_req_create(mem_ctx
, &state
,
625 struct messaging_read_state
);
629 state
->msg_type
= msg_type
;
631 subreq
= messaging_filtered_read_send(state
, ev
, msg
,
632 messaging_read_filter
, state
);
633 if (tevent_req_nomem(subreq
, req
)) {
634 return tevent_req_post(req
, ev
);
636 tevent_req_set_callback(subreq
, messaging_read_done
, req
);
640 static bool messaging_read_filter(struct messaging_rec
*rec
,
643 struct messaging_read_state
*state
= talloc_get_type_abort(
644 private_data
, struct messaging_read_state
);
646 return rec
->msg_type
== state
->msg_type
;
649 static void messaging_read_done(struct tevent_req
*subreq
)
651 struct tevent_req
*req
= tevent_req_callback_data(
652 subreq
, struct tevent_req
);
653 struct messaging_read_state
*state
= tevent_req_data(
654 req
, struct messaging_read_state
);
657 ret
= messaging_filtered_read_recv(subreq
, state
, &state
->rec
);
659 if (tevent_req_error(req
, ret
)) {
662 tevent_req_done(req
);
665 int messaging_read_recv(struct tevent_req
*req
, TALLOC_CTX
*mem_ctx
,
666 struct messaging_rec
**presult
)
668 struct messaging_read_state
*state
= tevent_req_data(
669 req
, struct messaging_read_state
);
672 if (tevent_req_is_unix_error(req
, &err
)) {
675 if (presult
!= NULL
) {
676 *presult
= talloc_move(mem_ctx
, &state
->rec
);
681 static bool messaging_append_new_waiters(struct messaging_context
*msg_ctx
)
683 if (msg_ctx
->num_new_waiters
== 0) {
687 if (talloc_array_length(msg_ctx
->waiters
) <
688 (msg_ctx
->num_waiters
+ msg_ctx
->num_new_waiters
)) {
689 struct tevent_req
**tmp
;
690 tmp
= talloc_realloc(
691 msg_ctx
, msg_ctx
->waiters
, struct tevent_req
*,
692 msg_ctx
->num_waiters
+ msg_ctx
->num_new_waiters
);
694 DEBUG(1, ("%s: talloc failed\n", __func__
));
697 msg_ctx
->waiters
= tmp
;
700 memcpy(&msg_ctx
->waiters
[msg_ctx
->num_waiters
], msg_ctx
->new_waiters
,
701 sizeof(struct tevent_req
*) * msg_ctx
->num_new_waiters
);
703 msg_ctx
->num_waiters
+= msg_ctx
->num_new_waiters
;
704 msg_ctx
->num_new_waiters
= 0;
709 struct messaging_defer_callback_state
{
710 struct messaging_context
*msg_ctx
;
711 struct messaging_rec
*rec
;
712 void (*fn
)(struct messaging_context
*msg
, void *private_data
,
713 uint32_t msg_type
, struct server_id server_id
,
718 static void messaging_defer_callback_trigger(struct tevent_context
*ev
,
719 struct tevent_immediate
*im
,
722 static void messaging_defer_callback(
723 struct messaging_context
*msg_ctx
, struct messaging_rec
*rec
,
724 void (*fn
)(struct messaging_context
*msg
, void *private_data
,
725 uint32_t msg_type
, struct server_id server_id
,
729 struct messaging_defer_callback_state
*state
;
730 struct tevent_immediate
*im
;
732 state
= talloc(msg_ctx
, struct messaging_defer_callback_state
);
734 DEBUG(1, ("talloc failed\n"));
737 state
->msg_ctx
= msg_ctx
;
739 state
->private_data
= private_data
;
741 state
->rec
= messaging_rec_dup(state
, rec
);
742 if (state
->rec
== NULL
) {
743 DEBUG(1, ("talloc failed\n"));
748 im
= tevent_create_immediate(state
);
750 DEBUG(1, ("tevent_create_immediate failed\n"));
754 tevent_schedule_immediate(im
, msg_ctx
->event_ctx
,
755 messaging_defer_callback_trigger
, state
);
758 static void messaging_defer_callback_trigger(struct tevent_context
*ev
,
759 struct tevent_immediate
*im
,
762 struct messaging_defer_callback_state
*state
= talloc_get_type_abort(
763 private_data
, struct messaging_defer_callback_state
);
764 struct messaging_rec
*rec
= state
->rec
;
766 state
->fn(state
->msg_ctx
, state
->private_data
, rec
->msg_type
, rec
->src
,
772 Dispatch one messaging_rec
774 void messaging_dispatch_rec(struct messaging_context
*msg_ctx
,
775 struct messaging_rec
*rec
)
777 struct messaging_callback
*cb
, *next
;
780 for (cb
= msg_ctx
->callbacks
; cb
!= NULL
; cb
= next
) {
782 if (cb
->msg_type
!= rec
->msg_type
) {
786 if (messaging_is_self_send(msg_ctx
, &rec
->dest
)) {
788 * This is a self-send. We are called here from
789 * messaging_send(), and we don't want to directly
790 * recurse into the callback but go via a
793 messaging_defer_callback(msg_ctx
, rec
, cb
->fn
,
797 * This comes from a different process. we are called
798 * from the event loop, so we should call back
801 cb
->fn(msg_ctx
, cb
->private_data
, rec
->msg_type
,
802 rec
->src
, &rec
->buf
);
805 * we continue looking for matching messages after finding
806 * one. This matters for subsystems like the internal notify
807 * code which register more than one handler for the same
812 if (!messaging_append_new_waiters(msg_ctx
)) {
817 while (i
< msg_ctx
->num_waiters
) {
818 struct tevent_req
*req
;
819 struct messaging_filtered_read_state
*state
;
821 req
= msg_ctx
->waiters
[i
];
824 * This got cleaned up. In the meantime,
825 * move everything down one. We need
826 * to keep the order of waiters, as
827 * other code may depend on this.
829 if (i
< msg_ctx
->num_waiters
- 1) {
830 memmove(&msg_ctx
->waiters
[i
],
831 &msg_ctx
->waiters
[i
+1],
832 sizeof(struct tevent_req
*) *
833 (msg_ctx
->num_waiters
- i
- 1));
835 msg_ctx
->num_waiters
-= 1;
839 state
= tevent_req_data(
840 req
, struct messaging_filtered_read_state
);
841 if (state
->filter(rec
, state
->private_data
)) {
842 messaging_filtered_read_done(req
, rec
);
849 static int mess_parent_dgm_cleanup(void *private_data
);
850 static void mess_parent_dgm_cleanup_done(struct tevent_req
*req
);
852 bool messaging_parent_dgm_cleanup_init(struct messaging_context
*msg
)
854 struct tevent_req
*req
;
856 req
= background_job_send(
857 msg
, msg
->event_ctx
, msg
, NULL
, 0,
858 lp_parm_int(-1, "messaging", "messaging dgm cleanup interval",
860 mess_parent_dgm_cleanup
, msg
);
864 tevent_req_set_callback(req
, mess_parent_dgm_cleanup_done
, msg
);
868 static int mess_parent_dgm_cleanup(void *private_data
)
870 struct messaging_context
*msg_ctx
= talloc_get_type_abort(
871 private_data
, struct messaging_context
);
874 status
= messaging_dgm_wipe(msg_ctx
);
875 DEBUG(10, ("messaging_dgm_wipe returned %s\n", nt_errstr(status
)));
876 return lp_parm_int(-1, "messaging", "messaging dgm cleanup interval",
880 static void mess_parent_dgm_cleanup_done(struct tevent_req
*req
)
882 struct messaging_context
*msg
= tevent_req_callback_data(
883 req
, struct messaging_context
);
886 status
= background_job_recv(req
);
888 DEBUG(1, ("messaging dgm cleanup job ended with %s\n",
891 req
= background_job_send(
892 msg
, msg
->event_ctx
, msg
, NULL
, 0,
893 lp_parm_int(-1, "messaging", "messaging dgm cleanup interval",
895 mess_parent_dgm_cleanup
, msg
);
897 DEBUG(1, ("background_job_send failed\n"));
899 tevent_req_set_callback(req
, mess_parent_dgm_cleanup_done
, msg
);
902 struct messaging_backend
*messaging_local_backend(
903 struct messaging_context
*msg_ctx
)
905 return msg_ctx
->local
;
908 struct tevent_context
*messaging_tevent_context(
909 struct messaging_context
*msg_ctx
)
911 return msg_ctx
->event_ctx
;