/* Copyright (c) 2018 Dovecot authors, see the included COPYING file */

#include "lib.h"

#include "sleep.h"

#include <time.h>

static bool ATTR_NOWARN_UNUSED_RESULT

sleep_timespec(const struct timespec *ts_sleep, bool interruptible)

{

  struct timespec ts_remain = *ts_sleep;

  while (nanosleep(&ts_remain, &ts_remain) < 0) {

    if (errno != EINTR)

      i_fatal("nanosleep(): %m");

    if (interruptible)

      return FALSE;

  }

  return TRUE;

}

void i_sleep_usecs(unsigned long long usecs)

{

  struct timespec ts_sleep;

  ts_sleep.tv_sec = (time_t)(usecs / 1000000);

  ts_sleep.tv_nsec = (long)(usecs % 1000000) * 1000;

  sleep_timespec(&ts_sleep, FALSE);

}

void i_sleep_msecs(unsigned int msecs)

{

  struct timespec ts_sleep;

  ts_sleep.tv_sec = (time_t)(msecs / 1000);

  ts_sleep.tv_nsec = (long)(msecs % 1000) * 1000000;

  sleep_timespec(&ts_sleep, FALSE);

}

void i_sleep_secs(time_t secs)

{

  struct timespec ts_sleep;

  ts_sleep.tv_sec = secs;

  ts_sleep.tv_nsec = 0;

  sleep_timespec(&ts_sleep, FALSE);

}

bool i_sleep_intr_usecs(unsigned long long usecs)

{

  struct timespec ts_sleep;

  ts_sleep.tv_sec = (time_t)(usecs / 1000000);

  ts_sleep.tv_nsec = (long)(usecs % 1000000) * 1000;

  return sleep_timespec(&ts_sleep, TRUE);

}

bool i_sleep_intr_msecs(unsigned int msecs)

{

  struct timespec ts_sleep;

  ts_sleep.tv_sec = (time_t)(msecs / 1000);

  ts_sleep.tv_nsec = (long)(msecs % 1000) * 1000000;

  return sleep_timespec(&ts_sleep, TRUE);

}

bool i_sleep_intr_secs(time_t secs)

{

  struct timespec ts_sleep;

  ts_sleep.tv_sec = secs;

  ts_sleep.tv_nsec = 0;

  return sleep_timespec(&ts_sleep, TRUE);

}