“sys/time.h” Replacement for Windows

https://www.codefull.org/2015/12/systime-h-replacement-for-windows/

Some C/C++ code targeted for GNU family compilers fail to compile under Windows due to the dependency on sys/time.h header file. The repository here has provided a neat implementation for it. Basically you need these three files: time.h, times.h and times.cpp. I have included them here (in case the repository ever went dead). Note that this is not my code and the original license of the code was LGPL.

sys/time.h:

#pragma once #ifndef _TIMES_H #include "sys/times.h" #endif

sys/times.h:

#ifndef _TIMES_H
#define _TIMES_H


#ifdef _WIN32
#include
#include
#include


int gettimeofday(struct timeval* t,void* timezone);


// from linux's sys/times.h


//#include


#define __need_clock_t
#include




/* Structure describing CPU time used by a process and its children.  */
struct tms
  {
    clock_t tms_utime;          /* User CPU time.  */
    clock_t tms_stime;          /* System CPU time.  */


    clock_t tms_cutime;         /* User CPU time of dead children.  */
    clock_t tms_cstime;         /* System CPU time of dead children.  */
  };


/* Store the CPU time used by this process and all its
   dead children (and their dead children) in BUFFER.
   Return the elapsed real time, or (clock_t) -1 for errors.
   All times are in CLK_TCKths of a second.  */
clock_t times (struct tms *__buffer);


typedef long long suseconds_t ;


#endif
#endif

sys/times.cpp:

sys/times.cpp

C++

#include "sys/times.h"

int gettimeofday(struct timeval* t,void* timezone)
{       struct _timeb timebuffer;
        _ftime( &timebuffer );
        t->tv_sec=timebuffer.time;
        t->tv_usec=1000*timebuffer.millitm;
return 0;
}


clock_t times (struct tms *__buffer) {


__buffer->tms_utime = clock();
__buffer->tms_stime = 0;
__buffer->tms_cstime = 0;
__buffer->tms_cutime = 0;
return __buffer->tms_utime;
}