diff options
Diffstat (limited to 'lib/xtime.h')
| -rw-r--r-- | lib/xtime.h | 45 |
1 files changed, 29 insertions, 16 deletions
diff --git a/lib/xtime.h b/lib/xtime.h index adab518b..c38e9dc3 100644 --- a/lib/xtime.h +++ b/lib/xtime.h @@ -1,6 +1,6 @@ /* xtime -- extended-resolution integer time stamps - Copyright (C) 2005-2006, 2009-2012 Free Software Foundation, Inc. + Copyright (C) 2005-2006, 2009-2013 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 @@ -18,28 +18,37 @@ /* Written by Paul Eggert. */ #ifndef XTIME_H_ -# define XTIME_H_ 1 +#define XTIME_H_ 1 + +_GL_INLINE_HEADER_BEGIN +#ifndef XTIME_INLINE +# define XTIME_INLINE _GL_INLINE +#endif /* 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_INT +#if HAVE_LONG_LONG_INT typedef long long int xtime_t; -# define XTIME_PRECISION 1000000000 -# else -# include <limits.h> +# 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 +# if LONG_MAX >> 31 >> 31 == 0 +# define XTIME_PRECISION 1 +# else +# define XTIME_PRECISION 1000000000 # endif +#endif + +#ifdef __cplusplus +extern "C" { +#endif /* Return an extended time value that contains S seconds and NS nanoseconds, without any overflow checking. */ -static inline xtime_t +XTIME_INLINE xtime_t xtime_make (xtime_t s, long int ns) { if (XTIME_PRECISION == 1) @@ -49,14 +58,14 @@ xtime_make (xtime_t s, long int ns) } /* Return the number of seconds in T, which must be nonnegative. */ -static inline xtime_t +XTIME_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_INLINE xtime_t xtime_sec (xtime_t t) { return (XTIME_PRECISION == 1 @@ -67,14 +76,14 @@ xtime_sec (xtime_t t) } /* Return the number of nanoseconds in T, which must be nonnegative. */ -static inline long int +XTIME_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_INLINE long int xtime_nsec (xtime_t t) { long int ns = t % XTIME_PRECISION; @@ -83,4 +92,8 @@ xtime_nsec (xtime_t t) return ns; } +#ifdef __cplusplus +} +#endif + #endif |