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
170
171
172
173
174
175
176
177
178
179
|
/* time_util.c
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <glib.h>
#include "time_util.h"
#ifndef _WIN32
#include <sys/time.h>
#include <sys/resource.h>
#else
#include <windows.h>
#endif
#include "ws_printf.h" /* ws_g_warning */
/* converts a broken down date representation, relative to UTC,
* to a timestamp; it uses timegm() if it's available.
* Copied from Glib source gtimer.c
*/
time_t
mktime_utc(struct tm *tm)
{
#ifndef HAVE_TIMEGM
time_t retval;
static const int days_before[] =
{
0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
};
int yr;
if (tm->tm_mon < 0 || tm->tm_mon > 11)
return (time_t) -1;
retval = (tm->tm_year - 70) * 365;
/* count number of leap years */
yr = tm->tm_year + 1900;
if (tm->tm_mon + 1 < 3 && (yr % 4) == 0 && ((yr % 100) != 0 || (yr % 400) == 0))
yr--;
retval += (((yr / 4) - (yr / 100) + (yr / 400)) - 477); /* 477 = ((1970 / 4) - (1970 / 100) + (1970 / 400)) */
retval += days_before[tm->tm_mon] + tm->tm_mday - 1;
retval = ((((retval * 24) + tm->tm_hour) * 60) + tm->tm_min) * 60 + tm->tm_sec;
return retval;
#else
return timegm(tm);
#endif /* !HAVE_TIMEGM */
}
void get_resource_usage(double *user_time, double *sys_time) {
#ifndef _WIN32
struct rusage ru;
getrusage(RUSAGE_SELF, &ru);
*user_time = ru.ru_utime.tv_sec + (ru.ru_utime.tv_usec / 1000000.0);
*sys_time = ru.ru_stime.tv_sec + (ru.ru_stime.tv_usec / 1000000.0);
#else /* _WIN32 */
HANDLE h_proc = GetCurrentProcess();
FILETIME cft, eft, kft, uft;
ULARGE_INTEGER uli_time;
GetProcessTimes(h_proc, &cft, &eft, &kft, &uft);
uli_time.LowPart = uft.dwLowDateTime;
uli_time.HighPart = uft.dwHighDateTime;
*user_time = uli_time.QuadPart / 10000000.0;
uli_time.LowPart = kft.dwLowDateTime;
uli_time.HighPart = kft.dwHighDateTime;
*sys_time = uli_time.QuadPart / 1000000000.0;
#endif /* _WIN32 */
}
static double last_user_time = 0.0;
static double last_sys_time = 0.0;
void log_resource_usage(gboolean reset_delta, const char *format, ...) {
va_list ap;
GString *log_str = g_string_new("");
double user_time;
double sys_time;
get_resource_usage(&user_time, &sys_time);
if (reset_delta || last_user_time == 0.0) {
last_user_time = user_time;
last_sys_time = sys_time;
}
g_string_append_printf(log_str, "user %.3f +%.3f sys %.3f +%.3f ",
user_time, user_time - last_user_time,
sys_time, sys_time - last_sys_time);
va_start(ap, format);
g_string_append_vprintf(log_str, format, ap);
va_end(ap);
ws_g_warning("%s", log_str->str);
g_string_free(log_str, TRUE);
}
/* Copied from pcapio.c pcapng_write_interface_statistics_block()*/
guint64
create_timestamp(void) {
guint64 timestamp;
#ifdef _WIN32
FILETIME now;
#else
struct timeval now;
#endif
#ifdef _WIN32
/*
* Current time, represented as 100-nanosecond intervals since
* January 1, 1601, 00:00:00 UTC.
*
* I think DWORD might be signed, so cast both parts of "now"
* to guint32 so that the sign bit doesn't get treated specially.
*
* Windows 8 provides GetSystemTimePreciseAsFileTime which we
* might want to use instead.
*/
GetSystemTimeAsFileTime(&now);
timestamp = (((guint64)(guint32)now.dwHighDateTime) << 32) +
(guint32)now.dwLowDateTime;
/*
* Convert to same thing but as 1-microsecond, i.e. 1000-nanosecond,
* intervals.
*/
timestamp /= 10;
/*
* Subtract difference, in microseconds, between January 1, 1601
* 00:00:00 UTC and January 1, 1970, 00:00:00 UTC.
*/
timestamp -= G_GUINT64_CONSTANT(11644473600000000);
#else
/*
* Current time, represented as seconds and microseconds since
* January 1, 1970, 00:00:00 UTC.
*/
gettimeofday(&now, NULL);
/*
* Convert to delta in microseconds.
*/
timestamp = (guint64)(now.tv_sec) * 1000000 +
(guint64)(now.tv_usec);
#endif
return timestamp;
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
|
