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Add support for new clocks. 

Recent Linux kernels added support for the CLOCK_MONOTONIC_RAW,
CLOCK_REALTIME_COARSE, and CLOCK_MONOTONIC_COARSE clocks.
This commit is contained in:
Ulrich Drepper 2010-03-25 04:01:33 -07:00
parent 03615f7d83
commit 89a4419cc3
5 changed files with 32 additions and 5 deletions
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11
ChangeLog
View File

@ -1,5 +1,16 @@
2010-03-24 Ulrich Drepper <drepper@redhat.com>
[BZ #11389]
* bits/time.h: Define CLOCK_MONOTONIC_RAW, CLOCK_REALTIME_COARSE, and
CLOCK_MONOTONIC_COARSE.
* sysdeps/unix/sysv/linux/clock_getres.c: Handle CLOCK_MONOTONIC_RAW,
CLOCK_REALTIME_COARSE, and CLOCK_MONOTONIC_COARSE.
* sysdeps/unix/sysv/linux/clock_gettime.c: Likewise.
* sysdeps/unix/sysv/linux/clock_settime.c: Likewise.
2010-03-16 Chris Demetriou <cgd@google.com>
[BZ #11394]
* locale/programs/simple-hash.c: Include inttypes.h.
(hashval_t): Defined to be uint32_t.
* locale/programs/simple_hash.h: Include inttypes.h.

8
bits/time.h
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@ -1,5 +1,5 @@
/* System-dependent timing definitions. Generic version.
Copyright (C) 1996,1997,1999-2002,2003 Free Software Foundation, Inc.
Copyright (C) 1996,1997,1999-2002,2003,2010 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
@ -50,6 +50,12 @@ extern long int __sysconf (int);
# define CLOCK_PROCESS_CPUTIME_ID 2
/* Thread-specific CPU-time clock. */
# define CLOCK_THREAD_CPUTIME_ID 3
/* Monotonic system-wide clock, not adjusted for frequency scaling. */
# define CLOCK_MONOTONIC_RAW 4
/* Identifier for system-wide realtime clock, updated only on ticks. */
# define CLOCK_REALTIME_COARSE 5
/* Monotonic system-wide clock, updated only on ticks. */
# define CLOCK_MONOTONIC_COARSE 6
/* Flag to indicate time is absolute. */
# define TIMER_ABSTIME 1

8
sysdeps/unix/sysv/linux/clock_getres.c
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@ -1,5 +1,5 @@
/* clock_getres -- Get the resolution of a POSIX clockid_t. Linux version.
Copyright (C) 2003,2004,2005,2006, 2008 Free Software Foundation, Inc.
Copyright (C) 2003,2004,2005,2006,2008,2010 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
@ -44,6 +44,9 @@
SYSDEP_GETRES_CPUTIME \
case CLOCK_REALTIME: \
case CLOCK_MONOTONIC: \
case CLOCK_MONOTONIC_RAW: \
case CLOCK_REALTIME_COARSE: \
case CLOCK_MONOTONIC_COARSE: \
SYSCALL_GETRES
# define __libc_missing_posix_timers 0
@ -80,6 +83,9 @@ maybe_syscall_getres (clockid_t clock_id, struct timespec *res)
SYSDEP_GETRES_CPUTIME \
case CLOCK_REALTIME: \
case CLOCK_MONOTONIC: \
case CLOCK_MONOTONIC_RAW: \
case CLOCK_REALTIME_COARSE: \
case CLOCK_MONOTONIC_COARSE: \
retval = maybe_syscall_getres (clock_id, res); \
if (retval == 0) \
break; \

5
sysdeps/unix/sysv/linux/clock_gettime.c
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@ -1,5 +1,5 @@
/* clock_gettime -- Get current time from a POSIX clockid_t. Linux version.
Copyright (C) 2003,2004,2005,2006,2007 Free Software Foundation, Inc.
Copyright (C) 2003,2004,2005,2006,2007,2010 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
@ -80,6 +80,9 @@ maybe_syscall_gettime (clockid_t clock_id, struct timespec *tp)
SYSDEP_GETTIME_CPUTIME \
case CLOCK_REALTIME: \
case CLOCK_MONOTONIC: \
case CLOCK_MONOTONIC_RAW: \
case CLOCK_REALTIME_COARSE: \
case CLOCK_MONOTONIC_COARSE: \
retval = maybe_syscall_gettime (clock_id, tp); \
if (retval == 0) \
break; \

5
sysdeps/unix/sysv/linux/clock_settime.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
/* Copyright (C) 2003, 2004, 2006, 2010 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
@ -45,7 +45,7 @@ maybe_syscall_settime_cpu (clockid_t clock_id, const struct timespec *tp)
INTERNAL_SYSCALL_DECL (err);
int r = INTERNAL_SYSCALL (clock_settime, err, 2, clock_id, tp);
if (!INTERNAL_SYSCALL_ERROR_P (r, err))
return 0;
return 0;
e = INTERNAL_SYSCALL_ERRNO (r, err);
# ifndef __ASSUME_POSIX_TIMERS
@ -90,6 +90,7 @@ extern int __libc_missing_posix_timers attribute_hidden;
/* The REALTIME clock might be available. Try the syscall first. */
# define SYSDEP_SETTIME \
case CLOCK_REALTIME: \
case CLOCK_REALTIME_COARSE: \
{ \
int e = EINVAL; \
\