diff options
Diffstat (limited to 'bits/time.h')
| -rw-r--r-- | bits/time.h | 54 |
1 files changed, 19 insertions, 35 deletions
diff --git a/bits/time.h b/bits/time.h index 19c7ab0..84e0e94 100644 --- a/bits/time.h +++ b/bits/time.h @@ -20,9 +20,10 @@ * Never include this file directly; use <time.h> instead. */ -#ifndef __need_timeval -# ifndef _BITS_TIME_H -# define _BITS_TIME_H 1 +#ifndef _BITS_TIME_H +#define _BITS_TIME_H 1 + +#include <bits/types.h> /* ISO/IEC 9899:1999 7.23.1: Components of time The macro `CLOCKS_PER_SEC' is an expression with type `clock_t' that is @@ -30,51 +31,34 @@ /* CAE XSH, Issue 4, Version 2: <time.h> The value of CLOCKS_PER_SEC is required to be 1 million on all XSI-conformant systems. */ -# define CLOCKS_PER_SEC ((clock_t) 1000000) +#define CLOCKS_PER_SEC ((__clock_t) 1000000) -# if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K +#if (!defined __STRICT_ANSI__ || defined __USE_POSIX) \ + && !defined __USE_XOPEN2K /* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK presents the real value for clock ticks per second for the system. */ -# include <bits/types.h> extern long int __sysconf (int); -# define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */ -# endif +# define CLK_TCK ((__clock_t) __sysconf (2)) /* 2 is _SC_CLK_TCK */ +#endif -# ifdef __USE_POSIX199309 +#ifdef __USE_POSIX199309 /* Identifier for system-wide realtime clock. */ -# define CLOCK_REALTIME 0 +# define CLOCK_REALTIME 0 /* Monotonic system-wide clock. */ -# define CLOCK_MONOTONIC 1 +# define CLOCK_MONOTONIC 1 /* High-resolution timer from the CPU. */ -# define CLOCK_PROCESS_CPUTIME_ID 2 +# define CLOCK_PROCESS_CPUTIME_ID 2 /* Thread-specific CPU-time clock. */ -# define CLOCK_THREAD_CPUTIME_ID 3 +# define CLOCK_THREAD_CPUTIME_ID 3 /* Monotonic system-wide clock, not adjusted for frequency scaling. */ -# define CLOCK_MONOTONIC_RAW 4 +# define CLOCK_MONOTONIC_RAW 4 /* Identifier for system-wide realtime clock, updated only on ticks. */ -# define CLOCK_REALTIME_COARSE 5 +# define CLOCK_REALTIME_COARSE 5 /* Monotonic system-wide clock, updated only on ticks. */ -# define CLOCK_MONOTONIC_COARSE 6 +# define CLOCK_MONOTONIC_COARSE 6 /* Flag to indicate time is absolute. */ -# define TIMER_ABSTIME 1 -# endif - -# endif /* bits/time.h */ +# define TIMER_ABSTIME 1 #endif -#ifdef __need_timeval -# undef __need_timeval -# ifndef _STRUCT_TIMEVAL -# define _STRUCT_TIMEVAL 1 -# include <bits/types.h> - -/* A time value that is accurate to the nearest - microsecond but also has a range of years. */ -struct timeval - { - __time_t tv_sec; /* Seconds. */ - __suseconds_t tv_usec; /* Microseconds. */ - }; -# endif /* struct timeval */ -#endif /* need timeval */ +#endif /* bits/time.h */ |