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VILLASnode/common/include/villas/timing.hpp

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1.2 KiB
C++

/** Time related functions.
*
* @file
* @author Steffen Vogel <svogel2@eonerc.rwth-aachen.de>
* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
* @license Apache License 2.0
*********************************************************************************/
#pragma once
#include <cstdio>
#include <cstdint>
#include <ctime>
/** Compare two timestamps. Return zero if they are equal */
ssize_t time_cmp(const struct timespec *a, const struct timespec *b);
/** Get delta between two timespec structs */
struct timespec time_diff(const struct timespec *start, const struct timespec *end);
/** Get sum of two timespec structs */
struct timespec time_add(const struct timespec *start, const struct timespec *end);
/** Return current time as a struct timespec. */
struct timespec time_now();
/** Return the diffrence off two timestamps as double value in seconds. */
double time_delta(const struct timespec *start, const struct timespec *end);
/** Convert timespec to double value representing seconds */
double time_to_double(const struct timespec *ts);
/** Convert double containing seconds after 1970 to timespec. */
struct timespec time_from_double(double secs);