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authorRoland McGrath <roland@gnu.org>2002-10-18 20:36:01 +0000
committerRoland McGrath <roland@gnu.org>2002-10-18 20:36:01 +0000
commit3fc6935a154e9910b45f1afb1840d82604505dcd (patch)
tree7ed5fefc7054609993e8bb244fac62e8c6d9c620 /bits/time.h
parentc2f55635daad280e92eba084450053819f86e949 (diff)
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* sysdeps/generic/bits/time.h: Replaced with contents of the
sysdeps/unix/sysv/linux/i386/bits/time.h file. All the following files were identical except for the absence of CLOCK_THREAD_CPUTIME_ID and CLOCK_PROCESS_CPUTIME_ID in .../linux/bits/time.h; adding these macros is ok even for architectures that don't now implement them. * sysdeps/mach/hurd/bits/time.h: File removed. * sysdeps/unix/sysv/linux/bits/time.h: File removed. * sysdeps/unix/sysv/linux/i386/bits/time.h: File removed. * sysdeps/unix/sysv/linux/ia64/bits/time.h: File removed. * sysdeps/unix/sysv/linux/sparc/bits/time.h: File removed. * sysdeps/unix/sysv/linux/x86_64/bits/time.h: File removed.
Diffstat (limited to 'bits/time.h')
-rw-r--r--bits/time.h31
1 files changed, 25 insertions, 6 deletions
diff --git a/bits/time.h b/bits/time.h
index 703dfc752a..df0202a132 100644
--- a/bits/time.h
+++ b/bits/time.h
@@ -1,5 +1,5 @@
-/* System-dependent timing definitions. Stub version.
- Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+/* System-dependent timing definitions. Generic version.
+ Copyright (C) 1996,1997,1999,2000,2001,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -25,24 +25,43 @@
# ifndef _BITS_TIME_H
# define _BITS_TIME_H 1
-# define CLOCKS_PER_SEC 60
+/* ISO/IEC 9899:1990 7.12.1: <time.h>
+ The macro `CLOCKS_PER_SEC' is the number per second of the value
+ returned by the `clock' function. */
+/* 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 1000000l
+
+# if !defined __STRICT_ANSI__ && !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
# ifdef __USE_POSIX199309
/* Identifier for system-wide realtime clock. */
-# define CLOCK_REALTIME 0
+# define CLOCK_REALTIME 0
+/* High-resolution timer from the CPU. */
+# define CLOCK_PROCESS_CPUTIME_ID 2
+/* Thread-specific CPU-time clock. */
+# define CLOCK_THREAD_CPUTIME_ID 3
/* Flag to indicate time is absolute. */
-# define TIMER_ABSTIME 1
+# define TIMER_ABSTIME 1
# endif
# endif /* bits/time.h */
#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