GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/bgpd/timer.c Lines: 0 47 0.0 %
Date: 2017-11-07 Branches: 0 52 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: timer.c,v 1.17 2017/01/24 04:22:42 benno Exp $ */
2
3
/*
4
 * Copyright (c) 2003-2007 Henning Brauer <henning@openbsd.org>
5
 *
6
 * Permission to use, copy, modify, and distribute this software for any
7
 * purpose with or without fee is hereby granted, provided that the above
8
 * copyright notice and this permission notice appear in all copies.
9
 *
10
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17
 */
18
19
#include <sys/types.h>
20
#include <stdlib.h>
21
22
#include "bgpd.h"
23
#include "session.h"
24
#include "log.h"
25
26
#define MAXIMUM(a, b)	(((a) > (b)) ? (a) : (b))
27
28
time_t
29
getmonotime(void)
30
{
31
	struct timespec	ts;
32
33
	if (clock_gettime(CLOCK_MONOTONIC, &ts) != 0)
34
		fatal("clock_gettime");
35
36
	return (ts.tv_sec);
37
}
38
39
struct peer_timer *
40
timer_get(struct peer *p, enum Timer timer)
41
{
42
	struct peer_timer *pt;
43
44
	TAILQ_FOREACH(pt, &p->timers, entry)
45
		if (pt->type == timer)
46
			break;
47
48
	return (pt);
49
}
50
51
struct peer_timer *
52
timer_nextisdue(struct peer *p)
53
{
54
	struct peer_timer *pt;
55
56
	pt = TAILQ_FIRST(&p->timers);
57
	if (pt != NULL && pt->val > 0 && pt->val <= getmonotime())
58
		return (pt);
59
	return (NULL);
60
}
61
62
time_t
63
timer_nextduein(struct peer *p)
64
{
65
	struct peer_timer *pt;
66
67
	if ((pt = TAILQ_FIRST(&p->timers)) != NULL && pt->val > 0)
68
		return (MAXIMUM(pt->val - getmonotime(), 0));
69
	return (-1);
70
}
71
72
int
73
timer_running(struct peer *p, enum Timer timer, time_t *left)
74
{
75
	struct peer_timer	*pt = timer_get(p, timer);
76
77
	if (pt != NULL && pt->val > 0) {
78
		if (left != NULL)
79
			*left = pt->val - getmonotime();
80
		return (1);
81
	}
82
	return (0);
83
}
84
85
void
86
timer_set(struct peer *p, enum Timer timer, u_int offset)
87
{
88
	struct peer_timer	*t, *pt = timer_get(p, timer);
89
90
	if (pt == NULL) {	/* have to create */
91
		if ((pt = malloc(sizeof(*pt))) == NULL)
92
			fatal("timer_set");
93
		pt->type = timer;
94
	} else {
95
		if (pt->val == getmonotime() + (time_t)offset)
96
			return;
97
		TAILQ_REMOVE(&p->timers, pt, entry);
98
	}
99
100
	pt->val = getmonotime() + offset;
101
102
	TAILQ_FOREACH(t, &p->timers, entry)
103
		if (t->val == 0 || t->val > pt->val)
104
			break;
105
	if (t != NULL)
106
		TAILQ_INSERT_BEFORE(t, pt, entry);
107
	else
108
		TAILQ_INSERT_TAIL(&p->timers, pt, entry);
109
}
110
111
void
112
timer_stop(struct peer *p, enum Timer timer)
113
{
114
	struct peer_timer	*pt = timer_get(p, timer);
115
116
	if (pt != NULL) {
117
		pt->val = 0;
118
		TAILQ_REMOVE(&p->timers, pt, entry);
119
		TAILQ_INSERT_TAIL(&p->timers, pt, entry);
120
	}
121
}
122
123
void
124
timer_remove(struct peer *p, enum Timer timer)
125
{
126
	struct peer_timer	*pt = timer_get(p, timer);
127
128
	if (pt != NULL) {
129
		TAILQ_REMOVE(&p->timers, pt, entry);
130
		free(pt);
131
	}
132
}
133
134
void
135
timer_remove_all(struct peer *p)
136
{
137
	struct peer_timer	*pt;
138
139
	while ((pt = TAILQ_FIRST(&p->timers)) != NULL) {
140
		TAILQ_REMOVE(&p->timers, pt, entry);
141
		free(pt);
142
	}
143
}