2 Unix SMB/CIFS mplementation.
3 DSDB replication service periodic handling
5 Copyright (C) Stefan Metzmacher 2007
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 #include "lib/events/events.h"
24 #include "dsdb/samdb/samdb.h"
25 #include "auth/auth.h"
26 #include "smbd/service.h"
27 #include "dsdb/repl/drepl_service.h"
28 #include <ldb_errors.h>
29 #include "../lib/util/dlinklist.h"
30 #include "librpc/gen_ndr/ndr_misc.h"
31 #include "librpc/gen_ndr/ndr_drsuapi.h"
32 #include "librpc/gen_ndr/ndr_drsblobs.h"
34 static void dreplsrv_periodic_run(struct dreplsrv_service *service);
36 static void dreplsrv_periodic_handler_te(struct tevent_context *ev, struct tevent_timer *te,
37 struct timeval t, void *ptr)
39 struct dreplsrv_service *service = talloc_get_type(ptr, struct dreplsrv_service);
42 service->periodic.te = NULL;
44 dreplsrv_periodic_run(service);
46 status = dreplsrv_periodic_schedule(service, service->periodic.interval);
47 if (!W_ERROR_IS_OK(status)) {
48 task_server_terminate(service->task, win_errstr(status), false);
53 WERROR dreplsrv_periodic_schedule(struct dreplsrv_service *service, uint32_t next_interval)
56 struct tevent_timer *new_te;
57 struct timeval next_time;
60 if (next_interval == 0) next_interval = 1;
62 next_time = timeval_current_ofs(next_interval, 50);
64 if (service->periodic.te) {
66 * if the timestamp of the new event is higher,
67 * as current next we don't need to reschedule
69 if (timeval_compare(&next_time, &service->periodic.next_event) > 0) {
74 /* reset the next scheduled timestamp */
75 service->periodic.next_event = next_time;
77 new_te = event_add_timed(service->task->event_ctx, service,
78 service->periodic.next_event,
79 dreplsrv_periodic_handler_te, service);
80 W_ERROR_HAVE_NO_MEMORY(new_te);
82 tmp_mem = talloc_new(service);
83 DEBUG(4,("dreplsrv_periodic_schedule(%u) %sscheduled for: %s\n",
85 (service->periodic.te?"re":""),
86 nt_time_string(tmp_mem, timeval_to_nttime(&next_time))));
89 talloc_free(service->periodic.te);
90 service->periodic.te = new_te;
95 static void dreplsrv_periodic_run(struct dreplsrv_service *service)
99 DEBUG(4,("dreplsrv_periodic_run(): schedule pull replication\n"));
102 * KCC or some administrative tool
103 * might have changed Topology graph
104 * i.e. repsFrom/repsTo
106 dreplsrv_refresh_partitions(service);
108 mem_ctx = talloc_new(service);
109 dreplsrv_schedule_pull_replication(service, mem_ctx);
110 talloc_free(mem_ctx);
112 DEBUG(4,("dreplsrv_periodic_run(): run pending_ops memory=%u\n",
113 (unsigned)talloc_total_blocks(service)));
115 dreplsrv_ridalloc_check_rid_pool(service);
117 dreplsrv_run_pending_ops(service);
121 run the next pending op, either a notify or a pull
123 void dreplsrv_run_pending_ops(struct dreplsrv_service *s)
125 if (!s->ops.notifies && !s->ops.pending) {
128 if (!s->ops.notifies ||
130 s->ops.notifies->schedule_time > s->ops.pending->schedule_time)) {
131 dreplsrv_run_pull_ops(s);
133 dreplsrv_notify_run_ops(s);