a752c7ab
 elopes
add first test an...
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/*
* Copyright (C) 2016 Luminița Lăzărescu <cluminita.lazarescu@gmail.com>
* Copyright (C) 2017 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup net_sntp Simple Network Time Protocol
* @ingroup net
* @brief Simple Network Time Protocol (SNTP) implementation
* @{
*
* @file
* @brief SNTP definitions
*
* @author Luminița Lăzărescu <cluminita.lazarescu@gmail.com>
* @author Martine Lenders <m.lenders@fu-berlin.de>
*/
#ifndef NET_SNTP_H
#define NET_SNTP_H
#include <stdint.h>
#include <time.h>
#include "net/ntp_packet.h"
#include "net/sock/udp.h"
#include "xtimer.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Synchronize with time server
*
* @param[in] server The time server
* @param[in] timeout Timeout for the server response
*
* @return 0 on success
* @return Negative number on error
*/
int sntp_sync(sock_udp_ep_t *server, uint32_t timeout);
/**
* @brief Get real time offset from system time as returned by @ref xtimer_now64()
*
* @return Real time offset in microseconds relative to 1900-01-01 00:00 UTC
*/
int64_t sntp_get_offset(void);
/**
* @brief Get time in microseconds from 1970-01-01 00:00:00 UTC.
*
* @return Time in microseconds from 1970-01-01 00:00:00 UTC
*/
static inline uint64_t sntp_get_unix_usec(void)
{
return (uint64_t)(sntp_get_offset() - (NTP_UNIX_OFFSET * US_PER_SEC) + xtimer_now_usec64());
}
#ifdef __cplusplus
}
#endif
#endif /* NET_SNTP_H */
/** @} */
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