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use usleep for small intervals

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@29469 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2010-02-03 09:45:45 +00:00
parent e9cdf2ec94
commit 367d552a3b
1 changed files with 19 additions and 3 deletions
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22
Source/NSThread.m
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@ -221,15 +221,31 @@ GSSleepUntilIntervalSinceReferenceDate(NSTimeInterval when)
while (delay > 0)
{
#if defined(__MINGW32__)
#if defined(HAVE_USLEEP)
/* On windows usleep() seems to perform a busy wait ... so we only
* use it for short delays ... otherwise use the less accurate Sleep()
*/
if (delay > 0.1)
{
Sleep ((NSInteger)(delay*1000));
}
else
{
usleep ((NSInteger)(delay*1000000));
}
#else
Sleep ((NSInteger)(delay*1000));
#elif defined(HAVE_USLEEP)
#endif /* HAVE_USLEEP */
#else
#if defined(HAVE_USLEEP)
usleep ((NSInteger)(delay*1000000));
#else
sleep ((NSInteger)delay);
#endif
#endif /* HAVE_USLEEP */
#endif /* __MINGW__ */
delay = when - GSTimeNow();
}
#endif
#endif /* HAVE_NANOSLEEP */
}
static NSArray *