time.c

/*
MIT License
Copyright (c) 2021 Preston Smith
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in 
the Software without restriction, including without limitation the rights to 
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 
of the Software, and to permit persons to whom the Software is furnished to do 
so, subject to the following conditions:

The above copyright notice and this permission notice 
(including the next paragraph) shall be included in all copies or substantial 
portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
SOFTWARE.
*/

#include <stdint.h>
#include <stdio.h>
#include <sys/types.h>
#include <time.h>
#include <inttypes.h>

#define DBIL 1000000000L

/* Time data */ 
int epoch_data(void){

    struct timespec ts;

    long int ns;
    time_t sec; 
    uint64_t nsOut;
    clock_gettime(CLOCK_REALTIME, &ts);
    sec = ts.tv_sec;
    ns = ts.tv_nsec;

    /* final output in nano seconds. */
    nsOut = (uint64_t) sec * DBIL + (uint64_t) ns; 

    /* Convert to miliseconds */
    uint64_t cTimeMs = nsOut / 1000000;

    return cTimeMs;
}