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"
54 #include "lib/messages_dgm.h"
55 #include "lib/util/iov_buf.h"
56 #include "lib/util/server_id_db.h"
57 #include "lib/messages_dgm_ref.h"
58 #include "lib/messages_util.h"
60 struct messaging_callback {
61 struct messaging_callback *prev, *next;
63 void (*fn)(struct messaging_context *msg, void *private_data,
65 struct server_id server_id, DATA_BLOB *data);
69 struct messaging_context {
71 struct tevent_context *event_ctx;
72 struct messaging_callback *callbacks;
74 struct tevent_req **new_waiters;
75 unsigned num_new_waiters;
77 struct tevent_req **waiters;
81 struct messaging_backend *remote;
83 struct server_id_db *names_db;
86 static void messaging_dispatch_rec(struct messaging_context *msg_ctx,
87 struct messaging_rec *rec);
89 /****************************************************************************
90 A useful function for testing the message system.
91 ****************************************************************************/
93 static void ping_message(struct messaging_context *msg_ctx,
99 struct server_id_buf idbuf;
101 DEBUG(1, ("INFO: Received PING message from PID %s [%.*s]\n",
102 server_id_str_buf(src, &idbuf), (int)data->length,
103 data->data ? (char *)data->data : ""));
105 messaging_send(msg_ctx, src, MSG_PONG, data);
108 static void messaging_recv_cb(const uint8_t *msg, size_t msg_len,
109 int *fds, size_t num_fds,
112 struct messaging_context *msg_ctx = talloc_get_type_abort(
113 private_data, struct messaging_context);
114 struct server_id_buf idbuf;
115 struct messaging_rec rec;
116 int64_t fds64[MIN(num_fds, INT8_MAX)];
119 if (msg_len < MESSAGE_HDR_LENGTH) {
120 DBG_WARNING("message too short: %zu\n", msg_len);
124 if (num_fds > INT8_MAX) {
125 DBG_WARNING("too many fds: %zu\n", num_fds);
130 * "consume" the fds by copying them and setting
131 * the original variable to -1
133 for (i=0; i < num_fds; i++) {
138 rec = (struct messaging_rec) {
139 .msg_version = MESSAGE_VERSION,
140 .buf.data = discard_const_p(uint8_t, msg) + MESSAGE_HDR_LENGTH,
141 .buf.length = msg_len - MESSAGE_HDR_LENGTH,
146 message_hdr_get(&rec.msg_type, &rec.src, &rec.dest, msg);
148 DBG_DEBUG("Received message 0x%x len %zu (num_fds:%zu) from %s\n",
149 (unsigned)rec.msg_type, rec.buf.length, num_fds,
150 server_id_str_buf(rec.src, &idbuf));
152 messaging_dispatch_rec(msg_ctx, &rec);
156 for (i=0; i < num_fds; i++) {
161 static int messaging_context_destructor(struct messaging_context *ctx)
165 for (i=0; i<ctx->num_new_waiters; i++) {
166 if (ctx->new_waiters[i] != NULL) {
167 tevent_req_set_cleanup_fn(ctx->new_waiters[i], NULL);
168 ctx->new_waiters[i] = NULL;
171 for (i=0; i<ctx->num_waiters; i++) {
172 if (ctx->waiters[i] != NULL) {
173 tevent_req_set_cleanup_fn(ctx->waiters[i], NULL);
174 ctx->waiters[i] = NULL;
181 static const char *private_path(const char *name)
183 return talloc_asprintf(talloc_tos(), "%s/%s", lp_private_dir(), name);
186 struct messaging_context *messaging_init(TALLOC_CTX *mem_ctx,
187 struct tevent_context *ev)
189 struct messaging_context *ctx;
191 const char *lck_path;
192 const char *priv_path;
195 if (!(ctx = talloc_zero(mem_ctx, struct messaging_context))) {
199 ctx->id = (struct server_id) {
200 .pid = getpid(), .vnn = NONCLUSTER_VNN
207 lck_path = lock_path("msg.lock");
208 if (lck_path == NULL) {
213 ok = directory_create_or_exist_strict(lck_path, sec_initial_uid(),
216 DEBUG(10, ("%s: Could not create lock directory: %s\n",
217 __func__, strerror(errno)));
222 priv_path = private_path("msg.sock");
223 if (priv_path == NULL) {
228 ok = directory_create_or_exist_strict(priv_path, sec_initial_uid(),
231 DEBUG(10, ("%s: Could not create msg directory: %s\n",
232 __func__, strerror(errno)));
237 ctx->msg_dgm_ref = messaging_dgm_ref(
238 ctx, ctx->event_ctx, &ctx->id.unique_id,
239 priv_path, lck_path, messaging_recv_cb, ctx, &ret);
241 if (ctx->msg_dgm_ref == NULL) {
242 DEBUG(2, ("messaging_dgm_ref failed: %s\n", strerror(ret)));
247 talloc_set_destructor(ctx, messaging_context_destructor);
249 if (lp_clustering()) {
250 ret = messaging_ctdbd_init(ctx, ctx, &ctx->remote);
253 DEBUG(2, ("messaging_ctdbd_init failed: %s\n",
259 ctx->id.vnn = get_my_vnn();
261 ctx->names_db = server_id_db_init(
262 ctx, ctx->id, lp_lock_directory(), 0,
263 TDB_INCOMPATIBLE_HASH|TDB_CLEAR_IF_FIRST);
264 if (ctx->names_db == NULL) {
265 DEBUG(10, ("%s: server_id_db_init failed\n", __func__));
270 messaging_register(ctx, NULL, MSG_PING, ping_message);
272 /* Register some debugging related messages */
274 register_msg_pool_usage(ctx);
275 register_dmalloc_msgs(ctx);
276 debug_register_msgs(ctx);
279 struct server_id_buf tmp;
280 DBG_DEBUG("my id: %s\n", server_id_str_buf(ctx->id, &tmp));
286 struct server_id messaging_server_id(const struct messaging_context *msg_ctx)
292 * re-init after a fork
294 NTSTATUS messaging_reinit(struct messaging_context *msg_ctx)
299 TALLOC_FREE(msg_ctx->msg_dgm_ref);
301 msg_ctx->id = (struct server_id) {
302 .pid = getpid(), .vnn = msg_ctx->id.vnn
305 lck_path = lock_path("msg.lock");
306 if (lck_path == NULL) {
307 return NT_STATUS_NO_MEMORY;
310 msg_ctx->msg_dgm_ref = messaging_dgm_ref(
311 msg_ctx, msg_ctx->event_ctx, &msg_ctx->id.unique_id,
312 private_path("msg.sock"), lck_path,
313 messaging_recv_cb, msg_ctx, &ret);
315 if (msg_ctx->msg_dgm_ref == NULL) {
316 DEBUG(2, ("messaging_dgm_ref failed: %s\n", strerror(ret)));
317 return map_nt_error_from_unix(ret);
320 if (lp_clustering()) {
321 ret = messaging_ctdbd_reinit(msg_ctx, msg_ctx,
325 DEBUG(1, ("messaging_ctdbd_init failed: %s\n",
327 return map_nt_error_from_unix(ret);
331 server_id_db_reinit(msg_ctx->names_db, msg_ctx->id);
338 * Register a dispatch function for a particular message type. Allow multiple
341 NTSTATUS messaging_register(struct messaging_context *msg_ctx,
344 void (*fn)(struct messaging_context *msg,
347 struct server_id server_id,
350 struct messaging_callback *cb;
352 DEBUG(5, ("Registering messaging pointer for type %u - "
354 (unsigned)msg_type, private_data));
357 * Only one callback per type
360 for (cb = msg_ctx->callbacks; cb != NULL; cb = cb->next) {
361 /* we allow a second registration of the same message
362 type if it has a different private pointer. This is
363 needed in, for example, the internal notify code,
364 which creates a new notify context for each tree
365 connect, and expects to receive messages to each of
367 if (cb->msg_type == msg_type && private_data == cb->private_data) {
368 DEBUG(5,("Overriding messaging pointer for type %u - private_data=%p\n",
369 (unsigned)msg_type, private_data));
371 cb->private_data = private_data;
376 if (!(cb = talloc(msg_ctx, struct messaging_callback))) {
377 return NT_STATUS_NO_MEMORY;
380 cb->msg_type = msg_type;
382 cb->private_data = private_data;
384 DLIST_ADD(msg_ctx->callbacks, cb);
389 De-register the function for a particular message type.
391 void messaging_deregister(struct messaging_context *ctx, uint32_t msg_type,
394 struct messaging_callback *cb, *next;
396 for (cb = ctx->callbacks; cb; cb = next) {
398 if ((cb->msg_type == msg_type)
399 && (cb->private_data == private_data)) {
400 DEBUG(5,("Deregistering messaging pointer for type %u - private_data=%p\n",
401 (unsigned)msg_type, private_data));
402 DLIST_REMOVE(ctx->callbacks, cb);
409 Send a message to a particular server
411 NTSTATUS messaging_send(struct messaging_context *msg_ctx,
412 struct server_id server, uint32_t msg_type,
413 const DATA_BLOB *data)
415 struct iovec iov = {0};
418 iov.iov_base = data->data;
419 iov.iov_len = data->length;
422 return messaging_send_iov(msg_ctx, server, msg_type, &iov, 1, NULL, 0);
425 NTSTATUS messaging_send_buf(struct messaging_context *msg_ctx,
426 struct server_id server, uint32_t msg_type,
427 const uint8_t *buf, size_t len)
429 DATA_BLOB blob = data_blob_const(buf, len);
430 return messaging_send(msg_ctx, server, msg_type, &blob);
433 int messaging_send_iov_from(struct messaging_context *msg_ctx,
434 struct server_id src, struct server_id dst,
436 const struct iovec *iov, int iovlen,
437 const int *fds, size_t num_fds)
440 uint8_t hdr[MESSAGE_HDR_LENGTH];
441 struct iovec iov2[iovlen+1];
443 if (server_id_is_disconnected(&dst)) {
447 if (num_fds > INT8_MAX) {
451 if (dst.vnn != msg_ctx->id.vnn) {
456 ret = msg_ctx->remote->send_fn(src, dst,
457 msg_type, iov, iovlen,
463 message_hdr_put(hdr, msg_type, src, dst);
464 iov2[0] = (struct iovec){ .iov_base = hdr, .iov_len = sizeof(hdr) };
465 memcpy(&iov2[1], iov, iovlen * sizeof(*iov));
467 ret = messaging_dgm_send(dst.pid, iov2, iovlen+1, fds, num_fds);
471 ret = messaging_dgm_send(dst.pid, iov2, iovlen+1,
479 NTSTATUS messaging_send_iov(struct messaging_context *msg_ctx,
480 struct server_id dst, uint32_t msg_type,
481 const struct iovec *iov, int iovlen,
482 const int *fds, size_t num_fds)
486 ret = messaging_send_iov_from(msg_ctx, msg_ctx->id, dst, msg_type,
487 iov, iovlen, fds, num_fds);
489 return map_nt_error_from_unix(ret);
494 static struct messaging_rec *messaging_rec_dup(TALLOC_CTX *mem_ctx,
495 struct messaging_rec *rec)
497 struct messaging_rec *result;
498 size_t fds_size = sizeof(int64_t) * rec->num_fds;
500 result = talloc_pooled_object(mem_ctx, struct messaging_rec, 2,
501 rec->buf.length + fds_size);
502 if (result == NULL) {
507 /* Doesn't fail, see talloc_pooled_object */
509 result->buf.data = talloc_memdup(result, rec->buf.data,
513 if (result->num_fds > 0) {
514 result->fds = talloc_memdup(result, rec->fds, fds_size);
520 struct messaging_filtered_read_state {
521 struct tevent_context *ev;
522 struct messaging_context *msg_ctx;
525 bool (*filter)(struct messaging_rec *rec, void *private_data);
528 struct messaging_rec *rec;
531 static void messaging_filtered_read_cleanup(struct tevent_req *req,
532 enum tevent_req_state req_state);
534 struct tevent_req *messaging_filtered_read_send(
535 TALLOC_CTX *mem_ctx, struct tevent_context *ev,
536 struct messaging_context *msg_ctx,
537 bool (*filter)(struct messaging_rec *rec, void *private_data),
540 struct tevent_req *req;
541 struct messaging_filtered_read_state *state;
542 size_t new_waiters_len;
544 req = tevent_req_create(mem_ctx, &state,
545 struct messaging_filtered_read_state);
550 state->msg_ctx = msg_ctx;
551 state->filter = filter;
552 state->private_data = private_data;
555 * We have to defer the callback here, as we might be called from
556 * within a different tevent_context than state->ev
558 tevent_req_defer_callback(req, state->ev);
560 state->tevent_handle = messaging_dgm_register_tevent_context(
562 if (tevent_req_nomem(state->tevent_handle, req)) {
563 return tevent_req_post(req, ev);
567 * We add ourselves to the "new_waiters" array, not the "waiters"
568 * array. If we are called from within messaging_read_done,
569 * messaging_dispatch_rec will be in an active for-loop on
570 * "waiters". We must be careful not to mess with this array, because
571 * it could mean that a single event is being delivered twice.
574 new_waiters_len = talloc_array_length(msg_ctx->new_waiters);
576 if (new_waiters_len == msg_ctx->num_new_waiters) {
577 struct tevent_req **tmp;
579 tmp = talloc_realloc(msg_ctx, msg_ctx->new_waiters,
580 struct tevent_req *, new_waiters_len+1);
581 if (tevent_req_nomem(tmp, req)) {
582 return tevent_req_post(req, ev);
584 msg_ctx->new_waiters = tmp;
587 msg_ctx->new_waiters[msg_ctx->num_new_waiters] = req;
588 msg_ctx->num_new_waiters += 1;
589 tevent_req_set_cleanup_fn(req, messaging_filtered_read_cleanup);
594 static void messaging_filtered_read_cleanup(struct tevent_req *req,
595 enum tevent_req_state req_state)
597 struct messaging_filtered_read_state *state = tevent_req_data(
598 req, struct messaging_filtered_read_state);
599 struct messaging_context *msg_ctx = state->msg_ctx;
602 tevent_req_set_cleanup_fn(req, NULL);
604 TALLOC_FREE(state->tevent_handle);
607 * Just set the [new_]waiters entry to NULL, be careful not to mess
608 * with the other "waiters" array contents. We are often called from
609 * within "messaging_dispatch_rec", which loops over
610 * "waiters". Messing with the "waiters" array will mess up that
614 for (i=0; i<msg_ctx->num_waiters; i++) {
615 if (msg_ctx->waiters[i] == req) {
616 msg_ctx->waiters[i] = NULL;
621 for (i=0; i<msg_ctx->num_new_waiters; i++) {
622 if (msg_ctx->new_waiters[i] == req) {
623 msg_ctx->new_waiters[i] = NULL;
629 static void messaging_filtered_read_done(struct tevent_req *req,
630 struct messaging_rec *rec)
632 struct messaging_filtered_read_state *state = tevent_req_data(
633 req, struct messaging_filtered_read_state);
635 state->rec = messaging_rec_dup(state, rec);
636 if (tevent_req_nomem(state->rec, req)) {
639 tevent_req_done(req);
642 int messaging_filtered_read_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
643 struct messaging_rec **presult)
645 struct messaging_filtered_read_state *state = tevent_req_data(
646 req, struct messaging_filtered_read_state);
649 if (tevent_req_is_unix_error(req, &err)) {
650 tevent_req_received(req);
653 if (presult != NULL) {
654 *presult = talloc_move(mem_ctx, &state->rec);
659 struct messaging_read_state {
661 struct messaging_rec *rec;
664 static bool messaging_read_filter(struct messaging_rec *rec,
666 static void messaging_read_done(struct tevent_req *subreq);
668 struct tevent_req *messaging_read_send(TALLOC_CTX *mem_ctx,
669 struct tevent_context *ev,
670 struct messaging_context *msg,
673 struct tevent_req *req, *subreq;
674 struct messaging_read_state *state;
676 req = tevent_req_create(mem_ctx, &state,
677 struct messaging_read_state);
681 state->msg_type = msg_type;
683 subreq = messaging_filtered_read_send(state, ev, msg,
684 messaging_read_filter, state);
685 if (tevent_req_nomem(subreq, req)) {
686 return tevent_req_post(req, ev);
688 tevent_req_set_callback(subreq, messaging_read_done, req);
692 static bool messaging_read_filter(struct messaging_rec *rec,
695 struct messaging_read_state *state = talloc_get_type_abort(
696 private_data, struct messaging_read_state);
698 if (rec->num_fds != 0) {
702 return rec->msg_type == state->msg_type;
705 static void messaging_read_done(struct tevent_req *subreq)
707 struct tevent_req *req = tevent_req_callback_data(
708 subreq, struct tevent_req);
709 struct messaging_read_state *state = tevent_req_data(
710 req, struct messaging_read_state);
713 ret = messaging_filtered_read_recv(subreq, state, &state->rec);
715 if (tevent_req_error(req, ret)) {
718 tevent_req_done(req);
721 int messaging_read_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
722 struct messaging_rec **presult)
724 struct messaging_read_state *state = tevent_req_data(
725 req, struct messaging_read_state);
728 if (tevent_req_is_unix_error(req, &err)) {
731 if (presult != NULL) {
732 *presult = talloc_move(mem_ctx, &state->rec);
737 struct messaging_handler_state {
738 struct tevent_context *ev;
739 struct messaging_context *msg_ctx;
741 bool (*handler)(struct messaging_context *msg_ctx,
742 struct messaging_rec **rec, void *private_data);
746 static void messaging_handler_got_msg(struct tevent_req *subreq);
748 struct tevent_req *messaging_handler_send(
749 TALLOC_CTX *mem_ctx, struct tevent_context *ev,
750 struct messaging_context *msg_ctx, uint32_t msg_type,
751 bool (*handler)(struct messaging_context *msg_ctx,
752 struct messaging_rec **rec, void *private_data),
755 struct tevent_req *req, *subreq;
756 struct messaging_handler_state *state;
758 req = tevent_req_create(mem_ctx, &state,
759 struct messaging_handler_state);
764 state->msg_ctx = msg_ctx;
765 state->msg_type = msg_type;
766 state->handler = handler;
767 state->private_data = private_data;
769 subreq = messaging_read_send(state, state->ev, state->msg_ctx,
771 if (tevent_req_nomem(subreq, req)) {
772 return tevent_req_post(req, ev);
774 tevent_req_set_callback(subreq, messaging_handler_got_msg, req);
778 static void messaging_handler_got_msg(struct tevent_req *subreq)
780 struct tevent_req *req = tevent_req_callback_data(
781 subreq, struct tevent_req);
782 struct messaging_handler_state *state = tevent_req_data(
783 req, struct messaging_handler_state);
784 struct messaging_rec *rec;
788 ret = messaging_read_recv(subreq, state, &rec);
790 if (tevent_req_error(req, ret)) {
794 subreq = messaging_read_send(state, state->ev, state->msg_ctx,
796 if (tevent_req_nomem(subreq, req)) {
799 tevent_req_set_callback(subreq, messaging_handler_got_msg, req);
801 ok = state->handler(state->msg_ctx, &rec, state->private_data);
810 tevent_req_done(req);
813 int messaging_handler_recv(struct tevent_req *req)
815 return tevent_req_simple_recv_unix(req);
818 static bool messaging_append_new_waiters(struct messaging_context *msg_ctx)
820 if (msg_ctx->num_new_waiters == 0) {
824 if (talloc_array_length(msg_ctx->waiters) <
825 (msg_ctx->num_waiters + msg_ctx->num_new_waiters)) {
826 struct tevent_req **tmp;
827 tmp = talloc_realloc(
828 msg_ctx, msg_ctx->waiters, struct tevent_req *,
829 msg_ctx->num_waiters + msg_ctx->num_new_waiters);
831 DEBUG(1, ("%s: talloc failed\n", __func__));
834 msg_ctx->waiters = tmp;
837 memcpy(&msg_ctx->waiters[msg_ctx->num_waiters], msg_ctx->new_waiters,
838 sizeof(struct tevent_req *) * msg_ctx->num_new_waiters);
840 msg_ctx->num_waiters += msg_ctx->num_new_waiters;
841 msg_ctx->num_new_waiters = 0;
847 Dispatch one messaging_rec
849 static void messaging_dispatch_rec(struct messaging_context *msg_ctx,
850 struct messaging_rec *rec)
852 struct messaging_callback *cb, *next;
856 for (cb = msg_ctx->callbacks; cb != NULL; cb = next) {
858 if (cb->msg_type != rec->msg_type) {
863 * the old style callbacks don't support fd passing
865 for (j=0; j < rec->num_fds; j++) {
866 int fd = rec->fds[j];
872 cb->fn(msg_ctx, cb->private_data, rec->msg_type,
873 rec->src, &rec->buf);
876 * we continue looking for matching messages after finding
877 * one. This matters for subsystems like the internal notify
878 * code which register more than one handler for the same
883 if (!messaging_append_new_waiters(msg_ctx)) {
884 for (j=0; j < rec->num_fds; j++) {
885 int fd = rec->fds[j];
894 while (i < msg_ctx->num_waiters) {
895 struct tevent_req *req;
896 struct messaging_filtered_read_state *state;
898 req = msg_ctx->waiters[i];
901 * This got cleaned up. In the meantime,
902 * move everything down one. We need
903 * to keep the order of waiters, as
904 * other code may depend on this.
906 if (i < msg_ctx->num_waiters - 1) {
907 memmove(&msg_ctx->waiters[i],
908 &msg_ctx->waiters[i+1],
909 sizeof(struct tevent_req *) *
910 (msg_ctx->num_waiters - i - 1));
912 msg_ctx->num_waiters -= 1;
916 state = tevent_req_data(
917 req, struct messaging_filtered_read_state);
918 if (state->filter(rec, state->private_data)) {
919 messaging_filtered_read_done(req, rec);
922 * Only the first one gets the fd-array
932 * If the fd-array isn't used, just close it.
934 for (j=0; j < rec->num_fds; j++) {
935 int fd = rec->fds[j];
942 static int mess_parent_dgm_cleanup(void *private_data);
943 static void mess_parent_dgm_cleanup_done(struct tevent_req *req);
945 bool messaging_parent_dgm_cleanup_init(struct messaging_context *msg)
947 struct tevent_req *req;
949 req = background_job_send(
950 msg, msg->event_ctx, msg, NULL, 0,
951 lp_parm_int(-1, "messaging", "messaging dgm cleanup interval",
953 mess_parent_dgm_cleanup, msg);
957 tevent_req_set_callback(req, mess_parent_dgm_cleanup_done, msg);
961 static int mess_parent_dgm_cleanup(void *private_data)
965 ret = messaging_dgm_wipe();
966 DEBUG(10, ("messaging_dgm_wipe returned %s\n",
967 ret ? strerror(ret) : "ok"));
968 return lp_parm_int(-1, "messaging", "messaging dgm cleanup interval",
972 static void mess_parent_dgm_cleanup_done(struct tevent_req *req)
974 struct messaging_context *msg = tevent_req_callback_data(
975 req, struct messaging_context);
978 status = background_job_recv(req);
980 DEBUG(1, ("messaging dgm cleanup job ended with %s\n",
983 req = background_job_send(
984 msg, msg->event_ctx, msg, NULL, 0,
985 lp_parm_int(-1, "messaging", "messaging dgm cleanup interval",
987 mess_parent_dgm_cleanup, msg);
989 DEBUG(1, ("background_job_send failed\n"));
992 tevent_req_set_callback(req, mess_parent_dgm_cleanup_done, msg);
995 int messaging_cleanup(struct messaging_context *msg_ctx, pid_t pid)
1000 ret = messaging_dgm_wipe();
1002 ret = messaging_dgm_cleanup(pid);
1008 struct tevent_context *messaging_tevent_context(
1009 struct messaging_context *msg_ctx)
1011 return msg_ctx->event_ctx;
1014 struct server_id_db *messaging_names_db(struct messaging_context *msg_ctx)
1016 return msg_ctx->names_db;