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/* time_util.c
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#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);
}
/*
* 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:
*/
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