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
|
/*
* (C) 2006 by Pablo Neira Ayuso <pablo@netfilter.org>
*
* 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 <unistd.h>
#include <stdlib.h>
#include <sys/time.h>
#include "linux_list.h"
#include "conntrackd.h"
#include "alarm.h"
#include "jhash.h"
#include <time.h>
#include <errno.h>
static LIST_HEAD(alarm_list);
void set_alarm_expiration_secs(struct alarm_list *t, unsigned long expires)
{
t->tv.tv_sec = expires;
}
void set_alarm_expiration_usecs(struct alarm_list *t, unsigned long expires)
{
t->tv.tv_usec = expires;
}
void set_alarm_function(struct alarm_list *t,
void (*fcn)(struct alarm_list *a, void *data))
{
t->function = fcn;
}
void set_alarm_data(struct alarm_list *t, void *data)
{
t->data = data;
}
void init_alarm(struct alarm_list *t)
{
INIT_LIST_HEAD(&t->head);
timerclear(&t->tv);
t->data = 0;
t->function = NULL;
}
void add_alarm(struct alarm_list *alarm)
{
struct timeval tv;
gettimeofday(&tv, NULL);
alarm->tv.tv_sec += tv.tv_sec;
list_add_tail(&alarm->head, &alarm_list);
}
void del_alarm(struct alarm_list *alarm)
{
list_del(&alarm->head);
}
void mod_alarm(struct alarm_list *alarm, unsigned long sc, unsigned long usc)
{
struct timeval tv;
list_del(&alarm->head);
INIT_LIST_HEAD(&alarm->head);
gettimeofday(&tv, NULL);
alarm->tv.tv_sec = tv.tv_sec + sc;
alarm->tv.tv_usec = tv.tv_usec + usc;
list_add_tail(&alarm->head, &alarm_list);
}
void do_alarm_run(struct timeval *next_alarm)
{
struct list_head *i, *tmp;
struct alarm_list *t;
struct timeval tv;
gettimeofday(&tv, NULL);
list_for_each_safe(i, tmp, &alarm_list) {
t = (struct alarm_list *) i;
if (timercmp(&t->tv, &tv, >)) {
timersub(&t->tv, &tv, next_alarm);
break;
}
del_alarm(t);
t->function(t, t->data);
}
}
|
