/* Provide a replacement for the POSIX nanosleep function.
- Copyright (C) 1999-2000, 2002, 2004-2011 Free Software Foundation, Inc.
+ Copyright (C) 1999-2000, 2002, 2004-2013 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* written by Jim Meyering
- and Bruno Haible for the Woe32 part */
+ and Bruno Haible for the native Windows part */
#include <config.h>
const time_t limit = 24 * 24 * 60 * 60;
time_t seconds = requested_delay->tv_sec;
struct timespec intermediate;
- intermediate.tv_nsec = 0;
+ intermediate.tv_nsec = requested_delay->tv_nsec;
while (limit < seconds)
{
if (result)
{
if (remaining_delay)
- {
- remaining_delay->tv_sec += seconds;
- remaining_delay->tv_nsec += requested_delay->tv_nsec;
- if (BILLION <= requested_delay->tv_nsec)
- {
- remaining_delay->tv_sec++;
- remaining_delay->tv_nsec -= BILLION;
- }
- }
+ remaining_delay->tv_sec += seconds;
return result;
}
+ intermediate.tv_nsec = 0;
}
intermediate.tv_sec = seconds;
- intermediate.tv_nsec = requested_delay->tv_nsec;
return nanosleep (&intermediate, remaining_delay);
}
}
#elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-/* Windows platforms. */
+/* Native Windows platforms. */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
-/* The Win32 function Sleep() has a resolution of about 15 ms and takes
+/* The Windows API function Sleep() has a resolution of about 15 ms and takes
at least 5 ms to execute. We use this function for longer time periods.
Additionally, we use busy-looping over short time periods, to get a
resolution of about 0.01 ms. In order to measure such short timespans,
tv_delay.tv_usec = (ts_delay->tv_nsec + 999) / 1000;
if (tv_delay.tv_usec == 1000000)
{
- time_t t1 = tv_delay.tv_sec + 1;
- if (t1 < tv_delay.tv_sec)
+ if (tv_delay.tv_sec == TYPE_MAXIMUM (time_t))
tv_delay.tv_usec = 1000000 - 1; /* close enough */
else
{
- tv_delay.tv_sec = t1;
+ tv_delay.tv_sec++;
tv_delay.tv_usec = 0;
}
}