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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/* Copyright (c) 2008-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "time-util.h"
#include <time.h>
#define STRFTIME_MAX_BUFSIZE (1024*64)
void i_gettimeofday(struct timeval *tv_r)
{
if (gettimeofday(tv_r, NULL) < 0)
i_fatal("gettimeofday() failed: %m");
}
uint64_t i_nanoseconds(void)
{
struct timespec ts;
if (clock_gettime(CLOCK_REALTIME, &ts) < 0)
i_fatal("clock_gettime() failed: %m");
return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
}
int timeval_cmp(const struct timeval *tv1, const struct timeval *tv2)
{
if (tv1->tv_sec < tv2->tv_sec)
return -1;
if (tv1->tv_sec > tv2->tv_sec)
return 1;
if (tv1->tv_usec < tv2->tv_usec)
return -1;
if (tv1->tv_usec > tv2->tv_usec)
return 1;
return 0;
}
int timeval_cmp_margin(const struct timeval *tv1, const struct timeval *tv2,
unsigned int usec_margin)
{
long long secs_diff, usecs_diff;
int sec_margin, ret;
if (tv1->tv_sec < tv2->tv_sec) {
sec_margin = ((int)usec_margin / 1000000) + 1;
secs_diff = (long long)tv2->tv_sec - (long long)tv1->tv_sec;
if (secs_diff > sec_margin)
return -1;
usecs_diff = secs_diff * 1000000LL +
(tv2->tv_usec - tv1->tv_usec);
ret = -1;
} else if (tv1->tv_sec > tv2->tv_sec) {
sec_margin = ((int)usec_margin / 1000000) + 1;
secs_diff = (long long)tv1->tv_sec - (long long)tv2->tv_sec;
if (secs_diff > sec_margin)
return 1;
usecs_diff = secs_diff * 1000000LL +
(tv1->tv_usec - tv2->tv_usec);
ret = 1;
} else if (tv1->tv_usec < tv2->tv_usec) {
usecs_diff = tv2->tv_usec - tv1->tv_usec;
ret = -1;
} else {
usecs_diff = tv1->tv_usec - tv2->tv_usec;
ret = 1;
}
i_assert(usecs_diff >= 0);
return (unsigned long long)usecs_diff > usec_margin ? ret : 0;
}
int timeval_diff_msecs(const struct timeval *tv1, const struct timeval *tv2)
{
long long diff = timeval_diff_usecs(tv1, tv2) / 1000LL;
#ifdef DEBUG
/* FIXME v2.4: Remove the ifdef */
i_assert(diff <= INT_MAX);
#endif
return (int)diff;
}
long long timeval_diff_usecs(const struct timeval *tv1,
const struct timeval *tv2)
{
time_t secs;
int usecs;
secs = tv1->tv_sec - tv2->tv_sec;
usecs = tv1->tv_usec - tv2->tv_usec;
if (usecs < 0) {
secs--;
usecs += 1000000;
}
return ((long long)secs * 1000000LL) + usecs;
}
time_t time_to_local_day_start(time_t t)
{
const struct tm *day_tm;
struct tm tm;
time_t new_start_time;
day_tm = localtime(&t);
i_zero(&tm);
tm.tm_year = day_tm->tm_year;
tm.tm_mon = day_tm->tm_mon;
tm.tm_mday = day_tm->tm_mday;
tm.tm_isdst = -1;
new_start_time = mktime(&tm);
i_assert(new_start_time != (time_t)-1);
return new_start_time;
}
static const char *strftime_real(const char *fmt, const struct tm *tm)
{
size_t bufsize = strlen(fmt) + 32;
char *buf = t_buffer_get(bufsize);
size_t ret;
while ((ret = strftime(buf, bufsize, fmt, tm)) == 0) {
bufsize *= 2;
i_assert(bufsize <= STRFTIME_MAX_BUFSIZE);
buf = t_buffer_get(bufsize);
}
t_buffer_alloc(ret + 1);
return buf;
}
const char *t_strftime(const char *fmt, const struct tm *tm)
{
return strftime_real(fmt, tm);
}
const char *t_strflocaltime(const char *fmt, time_t t)
{
return strftime_real(fmt, localtime(&t));
}
const char *t_strfgmtime(const char *fmt, time_t t)
{
return strftime_real(fmt, gmtime(&t));
}
int str_to_timeval(const char *str, struct timeval *tv_r)
{
tv_r->tv_usec = 0;
const char *p = strchr(str, '.');
if (p == NULL)
return str_to_time(str, &tv_r->tv_sec);
int ret;
T_BEGIN {
ret = str_to_time(t_strdup_until(str, p++), &tv_r->tv_sec);
} T_END;
if (ret < 0 || p[0] == '\0')
return -1;
unsigned int len = strlen(p);
if (len > 6)
return -1; /* we don't support sub-microseconds */
char usecs_str[7] = "000000";
memcpy(usecs_str, p, len);
unsigned int usec;
if (str_to_uint(usecs_str, &usec) < 0)
return -1;
tv_r->tv_usec = usec;
return 0;
}
|
