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Diffstat (limited to 'lib/xtime.h')
-rw-r--r-- | lib/xtime.h | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/lib/xtime.h b/lib/xtime.h deleted file mode 100644 index 297c6f53d..000000000 --- a/lib/xtime.h +++ /dev/null @@ -1,87 +0,0 @@ -/* xtime -- extended-resolution integer time stamps - - Copyright (C) 2005, 2006 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 - the Free Software Foundation; either version 2, 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 - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - 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. */ - -/* Written by Paul Eggert. */ - -#ifndef XTIME_H_ -# define XTIME_H_ 1 - -/* xtime_t is a signed type used for time stamps. It is an integer - type that is a count of nanoseconds -- except for obsolescent hosts - without sufficiently-wide integers, where it is a count of - seconds. */ -# if HAVE_LONG_LONG -typedef long long int xtime_t; -# define XTIME_PRECISION 1000000000 -# else -# include <limits.h> -typedef long int xtime_t; -# if LONG_MAX >> 31 >> 31 == 0 -# define XTIME_PRECISION 1 -# else -# define XTIME_PRECISION 1000000000 -# endif -# endif - -/* Return an extended time value that contains S seconds and NS - nanoseconds, without any overflow checking. */ -static inline xtime_t -xtime_make (xtime_t s, long int ns) -{ - if (XTIME_PRECISION == 1) - return s; - else - return XTIME_PRECISION * s + ns; -} - -/* Return the number of seconds in T, which must be nonnegative. */ -static inline xtime_t -xtime_nonnegative_sec (xtime_t t) -{ - return t / XTIME_PRECISION; -} - -/* Return the number of seconds in T. */ -static inline xtime_t -xtime_sec (xtime_t t) -{ - return (XTIME_PRECISION == 1 - ? t - : t < 0 - ? (t + XTIME_PRECISION - 1) / XTIME_PRECISION - 1 - : xtime_nonnegative_sec (t)); -} - -/* Return the number of nanoseconds in T, which must be nonnegative. */ -static inline long int -xtime_nonnegative_nsec (xtime_t t) -{ - return t % XTIME_PRECISION; -} - -/* Return the number of nanoseconds in T. */ -static inline long int -xtime_nsec (xtime_t t) -{ - long int ns = t % XTIME_PRECISION; - if (ns < 0) - ns += XTIME_PRECISION; - return ns; -} - -#endif |