diff options
Diffstat (limited to 'lib/gethrxtime.c')
| -rw-r--r-- | lib/gethrxtime.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/lib/gethrxtime.c b/lib/gethrxtime.c index 2046e06..fa356e8 100644 --- a/lib/gethrxtime.c +++ b/lib/gethrxtime.c @@ -1,11 +1,11 @@ /* gethrxtime -- get high resolution real time - Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc. + Copyright (C) 2005-2007, 2009-2016 Free Software Foundation, Inc. - This program is free software; you can redistribute it and/or modify + 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 - the Free Software Foundation; either version 2, or (at your option) - any later version. + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -13,15 +13,17 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* Written by Paul Eggert. */ #include <config.h> +#define GETHRXTIME_INLINE _GL_EXTERN_INLINE #include "gethrxtime.h" +#if ! (HAVE_ARITHMETIC_HRTIME_T && HAVE_DECL_GETHRTIME) + #include <sys/time.h> #include "timespec.h" @@ -33,30 +35,30 @@ xtime_t gethrxtime (void) { -#if HAVE_NANOUPTIME +# if HAVE_NANOUPTIME { struct timespec ts; nanouptime (&ts); return xtime_make (ts.tv_sec, ts.tv_nsec); } -#else +# else -# if defined CLOCK_MONOTONIC && HAVE_CLOCK_GETTIME +# if defined CLOCK_MONOTONIC && HAVE_CLOCK_GETTIME { struct timespec ts; if (clock_gettime (CLOCK_MONOTONIC, &ts) == 0) return xtime_make (ts.tv_sec, ts.tv_nsec); } -# endif +# endif -# if HAVE_MICROUPTIME +# if HAVE_MICROUPTIME { struct timeval tv; microuptime (&tv); return xtime_make (tv.tv_sec, 1000 * tv.tv_usec); } -# else +# else /* No monotonically increasing clocks are available; fall back on a clock that might jump backwards, since it's the best we can do. */ { @@ -64,6 +66,8 @@ gethrxtime (void) gettime (&ts); return xtime_make (ts.tv_sec, ts.tv_nsec); } +# endif # endif -#endif } + +#endif |