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/* time_util.h
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __TIME_UTIL_H__
#define __TIME_UTIL_H__
#include "ws_symbol_export.h"
#include <time.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/** Converts a broken down date representation, relative to UTC,
* to a timestamp
*/
WS_DLL_PUBLIC
time_t mktime_utc(struct tm *tm);
/** Validate the values in a time_t.
* Currently checks tm_year, tm_mon, tm_mday, tm_hour, tm_min, and tm_sec;
* disregards tm_wday, tm_yday, and tm_isdst.
*
* @param tm The struct tm to validate.
*/
WS_DLL_PUBLIC
gboolean tm_is_valid(struct tm *tm);
/** Fetch the process CPU time.
*
* Fetch the current process user and system CPU times, convert them to
* seconds, and store them in the provided parameters.
*
* @param user_time Seconds spent in user mode.
* @param sys_time Seconds spent in system (kernel) mode.
*/
WS_DLL_PUBLIC
void get_resource_usage(double *user_time, double *sys_time);
/** Print the process CPU time followed by a log message.
*
* Print the current process user and system CPU times along with the times
* elapsed since the times were last reset.
*
* @param reset_delta Reset the delta times. This will typically be TRUE when
* logging the first measurement and FALSE thereafter.
* @param format Printf-style format string. Passed to g_string_vprintf.
* @param ... Parameters for the format string.
*/
WS_DLL_PUBLIC
void log_resource_usage(gboolean reset_delta, const char *format, ...);
/**
* Fetch the number of microseconds since midnight (0 hour), January 1, 1970.
*/
WS_DLL_PUBLIC
guint64 create_timestamp(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __TIME_UTIL_H__ */
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