sleep.c

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#include <stdlib.h>
 
#ifdef _MSC_VER
#include <windows.h>
#elif _POSIX_C_SOURCE >= 199309L
#include <time.h>   // for nanosleep
#else
#include <unistd.h> // for usleep
#endif
 
#include "sleep.h"
 
 
// Sleep for the specified number of milliseconds.
void sleep(int milliseconds)
{
#ifdef _MSC_VER
    Sleep(milliseconds);
#elif _POSIX_C_SOURCE >= 199309L
    struct timespec ts;
    ts.tv_sec = milliseconds / 1000;
    ts.tv_nsec = (milliseconds % 1000) * 1000000;
    nanosleep(&ts, NULL);
#else
    if (milliseconds >= 1000)
        sleep(milliseconds / 1000);
    usleep((milliseconds % 1000) * 1000);
#endif
}