srsLTE/lib/include/srslte/phy/common/timestamp.h

65 lines
1.9 KiB
C

/**
*
* \section COPYRIGHT
*
* Copyright 2013-2020 Software Radio Systems Limited
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the distribution.
*
*/
/**********************************************************************************************
* File: timestamp.h
*
* Description: A simple timestamp struct with separate variables for full and frac seconds.
* Separate variables are used to avoid loss of precision in our frac seconds.
* Only positive timestamps are supported.
*
* Reference:
*********************************************************************************************/
#ifndef SRSLTE_TIMESTAMP_H
#define SRSLTE_TIMESTAMP_H
#include "srslte/config.h"
#include <stdbool.h>
#include <stdint.h>
#include <time.h>
typedef struct SRSLTE_API {
time_t full_secs;
double frac_secs;
} srslte_timestamp_t;
#ifdef __cplusplus
extern "C" {
#endif
SRSLTE_API int srslte_timestamp_init(srslte_timestamp_t* t, time_t full_secs, double frac_secs);
SRSLTE_API void srslte_timestamp_init_uint64(srslte_timestamp_t* ts_time, uint64_t ts_count, double base_srate);
SRSLTE_API int srslte_timestamp_copy(srslte_timestamp_t* dest, srslte_timestamp_t* src);
SRSLTE_API int srslte_timestamp_compare(const srslte_timestamp_t* a, const srslte_timestamp_t* b);
SRSLTE_API int srslte_timestamp_add(srslte_timestamp_t* t, time_t full_secs, double frac_secs);
SRSLTE_API int srslte_timestamp_sub(srslte_timestamp_t* t, time_t full_secs, double frac_secs);
SRSLTE_API double srslte_timestamp_real(const srslte_timestamp_t* t);
SRSLTE_API bool srslte_timestamp_iszero(const srslte_timestamp_t* t);
SRSLTE_API uint32_t srslte_timestamp_uint32(srslte_timestamp_t* t);
SRSLTE_API uint64_t srslte_timestamp_uint64(const srslte_timestamp_t* t, double srate);
#ifdef __cplusplus
}
#endif
#endif // SRSLTE_TIMESTAMP_H