summaryrefslogtreecommitdiff
path: root/source4/wrepl_server/wrepl_periodic.c
blob: a541d614e6980acc70fae694d3c5c8ec617773bd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
/* 
   Unix SMB/CIFS implementation.
   
   WINS Replication server
   
   Copyright (C) Stefan Metzmacher	2005
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "includes.h"
#include "lib/events/events.h"
#include "smbd/service_task.h"
#include "librpc/gen_ndr/ndr_winsrepl.h"
#include "wrepl_server/wrepl_server.h"

static NTSTATUS wreplsrv_periodic_run(struct wreplsrv_service *service)
{
	NTSTATUS status;

	status = wreplsrv_scavenging_run(service);
	NT_STATUS_NOT_OK_RETURN(status);

	status = wreplsrv_out_pull_run(service);
	NT_STATUS_NOT_OK_RETURN(status);

	status = wreplsrv_out_push_run(service);
	NT_STATUS_NOT_OK_RETURN(status);

	return NT_STATUS_OK;
}

static void wreplsrv_periodic_handler_te(struct event_context *ev, struct timed_event *te,
					 struct timeval t, void *ptr)
{
	struct wreplsrv_service *service = talloc_get_type(ptr, struct wreplsrv_service);
	NTSTATUS status;

	service->periodic.te = NULL;

	status = wreplsrv_periodic_schedule(service, service->config.periodic_interval);
	if (!NT_STATUS_IS_OK(status)) {
		task_server_terminate(service->task, nt_errstr(status));
		return;
	}

	status = wreplsrv_periodic_run(service);
	if (!NT_STATUS_IS_OK(status)) {
		DEBUG(0,("wresrv_periodic_run() failed: %s\n", nt_errstr(status)));
	}
}

NTSTATUS wreplsrv_periodic_schedule(struct wreplsrv_service *service, uint32_t next_interval)
{
	TALLOC_CTX *tmp_mem;
	struct timed_event *new_te;
	struct timeval next_time;

	/* prevent looping */
	if (next_interval == 0) next_interval = 1;

	next_time = timeval_current_ofs(next_interval, 5000);

	if (service->periodic.te) {
		/*
		 * if the timestamp of the new event is higher,
		 * as current next we don't need to reschedule
		 */
		if (timeval_compare(&next_time, &service->periodic.next_event) > 0) {
			return NT_STATUS_OK;
		}
	}

	/* reset the next scheduled timestamp */
	service->periodic.next_event = next_time;

	new_te = event_add_timed(service->task->event_ctx, service,
			         service->periodic.next_event,
			         wreplsrv_periodic_handler_te, service);
	NT_STATUS_HAVE_NO_MEMORY(new_te);

	tmp_mem = talloc_new(service);
	DEBUG(4,("wreplsrv_periodic_schedule(%u) %sscheduled for: %s\n",
		next_interval,
		(service->periodic.te?"re":""),
		nt_time_string(tmp_mem, timeval_to_nttime(&next_time))));
	talloc_free(tmp_mem);

	talloc_free(service->periodic.te);
	service->periodic.te = new_te;

	return NT_STATUS_OK;
}

NTSTATUS wreplsrv_setup_periodic(struct wreplsrv_service *service)
{
	NTSTATUS status;

	status = wreplsrv_periodic_schedule(service, 0);
	NT_STATUS_NOT_OK_RETURN(status);

	return NT_STATUS_OK;
}