/* xtime -- extended-resolution integer time stamps
- Copyright (C) 2005, 2006 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
/* Written by Paul Eggert. */
#ifndef XTIME_H_
-# define XTIME_H_ 1
+#define XTIME_H_ 1
+
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
+_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)
}
/* 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
- ? t
- : t < 0
- ? (t + XTIME_PRECISION - 1) / XTIME_PRECISION - 1
- : xtime_nonnegative_sec (t));
+ ? 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_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;
return ns;
}
+#ifdef __cplusplus
+}
+#endif
+
#endif