CVS log for src/sys/sys/time.h

Up to [cvs.NetBSD.org] / src / sys / sys

Request diff between arbitrary revisions

Keyword substitution: kv
Default branch: MAIN

kern: Move some purely arithmetic routines to subr_time_arith.c.

Preparation for testing and fixing:

PR kern/58922: itimer(9): arithmetic overflow
PR kern/58925: itimer(9) responds erratically to clock wound back
PR kern/58926: itimer(9) integer overflow in overrun counting
PR kern/58927: itimer(9): overrun accounting is broken

sys/sys: remove CONSTCOND comment from do-while-0 loop

Lint doesn't need this comment anymore, as there is nothing surprising
or unusual about this idiom.

kern: New functions timespecaddok, timespecsubok.

Return false if timespecadd or timespecsub with the same arguments
would overflow (possibly in an intermediate calculation), true if OK.

Typical usage:

sys_wotsit(...)
{
	...
	if (!timespecsubok(x, y))
		return EINVAL;
	timespecub(x, y, xydelta);
	...
}

update from HEAD

Sync with HEAD

Sync with HEAD

Sync with HEAD

use ULL so this doesn't break on 32bit builds... sorry

define constants as being wider than int when needed, instead of casting
them at use. makes compilers happier.

Sync with HEAD.  (Note that most of these changes are simply $NetBSD$
tag issues.)

As pointed out by christos@, since the macros already include a cast
to uint64_t, it's not necessary to cast again at point of use.

Define macros for the time conversion magic numbers.

The inline functions {ms,us,ns}2bintime() are currently defined\nincorrectly, and always result in the bt.frac being set to zero.\nEven correcting for left- vs right shifts, the results are low\nprecision with at most 32 significant bits.\n\nRewrite using 64-bit multiply rather than division to get proper\nresults.  Also the multiply is less costly than a divide on most\nplatforms.

Change CLOCK_THREAD_CPUTIME_ID so that it is not negative; requested by joerg
this breaks ABI compatibility, but not much should be using this yet, since
it was recently added.

KNF. Remove extra spaces. No functional change.

Sync with HEAD

Add clock_getcpuclockid2(2) as well as CLOCK_{PROCESS,THREAD}_CPUTIME_ID.

Sync with HEAD (as of 26th Dec)

explicit casts to time_t, since we are going from unsigned -> signed.

Sync with HEAD

Do as POSIX says, define the timespec structure in <signal.h>

Extract struct timespec from <sys/time.h> and put into a separate header.

This solution is minimally invasive.

Sync with HEAD

Avoid C99 initializers outside _KERNEL.

Various software is built with, e.g., gcc without -std=c99, which
defaults to c89, which chokes on these.

Noted by Kamil Rytarowski.

Add bintimecmp, ms2bintime, us2bintime, ns2bintime.

Rebase to HEAD as of a few days ago.

Rebase.

make constants unsigned (joerg@)

convert to unsigned multiplication.

There is no reason not to support CLOCK_MONOTONIC in {g,s}etitimer() since
the underlying implementation already supports it, so add it.

Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.

sync with head.

Sync with HEAD.

namespace sanity: TIMER_RELTIME is _NETBSD_SOURCE only

Sync with HEAD.

Sync with HEAD.

merge christos-time_t

another suseconds_t cast

tv_usec is suseconds_t.

expose *utimes if HAVE_NBTOOL_CONFIG_H

Sync with head.

Sync with HEAD.

Sync with HEAD.

Sync with wrstuden-revivesa-base-2.

Sync with head.

Use more timespecs internally. From Alexander Shishkin and me.
Welcome to 4.99.70, 30 more to go for 100.

Sync with HEAD.

Welcome to the time_t=long long dev_t=uint64_t branch.

sync with head.

sync with HEAD

sync with head.

- wrap bintime with !defined(_STANDALONE) as suggested by Valeriy E. Ushakov.
- add a comment.

remove an unnecessary cast.

Sync with HEAD.

sync with head

Sync with HEAD

sync with HEAD

pacify lint with casts.

Sync with HEAD

Sync with head.

expose bintime for libpthread.

sync with head.

Sync with HEAD.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

sync with head

Merge from HEAD.

sync with head.

Complete a sync sys/ with head.

sync with head.

Sync with head.

Hide struct bintime and pertinent inline functions under #ifdenf _KERNEL.

This code is not intended to be visible by the userland anyway, and it
also triggers a bug in SPARC's gcc 3.3.* that causes bootxx to explode
beyond its size limit (gcc emits unused reference to __muldi3).

merge FreeBSD timecounters from branch simonb-timecounters
- struct timeval time is gone
  time.tv_sec -> time_second
- struct timeval mono_time is gone
  mono_time.tv_sec -> time_uptime
- access to time via
	{get,}{micro,nano,bin}time()
	get* versions are fast but less precise
- support NTP nanokernel implementation (NTP API 4)
- further reading:
  Timecounter Paper: http://phk.freebsd.dk/pubs/timecounter.pdf
  NTP Nanokernel: http://www.eecis.udel.edu/~mills/ntp/html/kern.html

- add casts to time_t for tv_sec as struct timeval
  is currently NOT SUS compliant

Sync with head.

sync with head.

sync with head.

Merge 2006-03-31 NetBSD-current into the "peter-altq" branch.

Make more (and better) use of feature test macros; suggested by Matthias
Drochner.

Merge 2006-03-28 NetBSD-current into the "peter-altq" branch.

Move struct clockinfo (KERN_CLOCKRATE sysctl) from <sys/time.h> to
<sys/sysctl.h>.

Add bintime structures and support functions from FreeBSD.
Move kernel time related variables and declarations to <sys/timevar.h>.

Sync with head.

- make settime take timespec.
- avoid wrapping of time in settime.
- pass struct proc down so that we can log a detailed message.

Sync with HEAD. Here we go again...

sync with head

Implement a few changes needed to properly resolve PR#30924, as
discussed in the PR.

- introduce sys/timevar.h to hold kernel-specific stuff relevant to
  sys/time.h.  Ideally, timevar.h would contain all (or almost) of the
  #ifdef _KERNEL part of time.h, but that's a pretty big and tedious
  change to make.  For now, it will contain only the prototypes I
  introduced when working on COMPAT_NETBSD32.

- split copyinout_t into copyin_t and copyout_t, it makes prototypes more
  explicit about the meaning of a given argument.  Suggested by yamt@.

- move copyinout_t definition in sys/time.h to systm.h as copyin_t and
  copyout_t

- make everything uses the new types and include the proper headers at
  the proper places.

Introduced nanotime() which is going to be used by some fs code yet to
be committed. This should really be an MD routine and microtime should
be implemented from it, not the opposite (which is what we have now).

Remove an extra empty line.

Split sys_timer_create, sys_timer_gettime and sys_timer_settime so they
can be easily used by netbsd32 code.

XXX Meanwhile, introduce a copyinout_t type that matches the prototype of
XXX copyin(9) and copyout(9).  Its logical place would be in systm.h, near
XXX the definition of copyin, but, well, see the comment.

Split sys_getitimer and sys_setitimer to make it possible to share the
relevant code with the COMPAT_NETBSD32 version, and make the latter use
the new functions.

This fixes netbsd32_setitimer() which had drifted from the native syscall
and did not work properly anymore.

sync with -current

Sync with HEAD.

sync with head.  xen and whitespace.  xen part is not finished.

Pull in <sys/select.h> (XPG>=4.2, POSIX>=2001).

Sync with HEAD.

Hi Perry!

nuke trailing whitespace

sync with head.

Sync with HEAD.

de-__P

Sync with HEAD.

Wrap TIMEVAL_TO_TIMESPEC and TIMESPEC_TO_TIMEVAL macros in

	do { ... } while(/*CONSTCOND*/0)

so that they can be used unadorned in if/else blocks, etc.  This means
that you now *have* to put a ; at the end of the "call" to these
macros.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

POSIX-2001: Add restrict keywords to gettimeofday(2) and setitimer(2);
further deprecate struct timezone usage by changing `tzp' argument to
gettimeofday() to void *; align utimes(2) declaration by changing `times`
argument from struct timeval * to struct timeval[2].  From Murray
Armfield in PR standards/25331.

In due curse, reflect these changes in futimes(2), lutimes(2), and
settimeofday(2).

SA_SIGINFO changes. This is 1.5Z

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

prototype must not have variable name

Add a new feature-test macro, _NETBSD_SOURCE.  If this is defined
by the application, all NetBSD interfaces are made visible, even
if some other feature-test macro (like _POSIX_C_SOURCE) is defined.
<sys/featuretest.h> defined _NETBSD_SOURCE if none of _ANSI_SOURCE,
_POSIX_C_SOURCE and _XOPEN_SOURCE is defined, so as to preserve
existing behaviour.

This has two major advantages:
+ Programs that require non-POSIX facilities but define _POSIX_C_SOURCE
  can trivially be overruled by putting -D_NETBSD_SOURCE in their CFLAGS.
+ It makes most of the #ifs simpler, in that they're all now ORs of the
  various macros, rather than having checks for (!defined(_ANSI_SOURCE) ||
  !defined(_POSIX_C_SOURCE) || !defined(_XOPEN_SOURCE)) all over the place.

I've tried not to change the semantics of the headers in any case where
_NETBSD_SOURCE wasn't defined, but there were some places where the
current semantics were clearly mad, and retaining them was harder than
correcting them.  In particular, I've mostly normalised things so that
_ANSI_SOURCE gets you the smallest set of stuff, then _POSIX_C_SOURCE,
_XOPEN_SOURCE and _NETBSD_SOURCE in that order.

Tested by building for vax, encouraged by thorpej, and uncontested in
tech-userlevel for a week.

Explicitly pull in <sys/queue.h>.

Prevent one timer from overrunning another with the current userret
mechanism by keeping a list (bitset) of which timers have fired and using
that list in the upcall (Does this sound familiar? SEND HELP NEED SIGINFO).

Provoke the idle LWP into running again with setrunnable(sa->sa_idle)
instead of a wakeup() call, since we know what it is.

Merge the nathanw_sa branch.

Sync with HEAD.

Separately track timer overruns presently occurring, and timer
overruns associated with the most recent successful delivery.

Implement CLOCK_VIRTUAL and CLOCK_PROF support for POSIX timers. Factor
out some common code between POSIX timers and BSD timers along the way.

Adjust timers_free() prototype, and define constants to use when calling it.

Add siginfo_t to struct ptimer.

Catch up to -current.

Sync w/ -current.

Implement the CLOCK_MONOTONIC clock for the posix/opengroup realtime
clock_() functions.  This simply returns the kernel mono_time variable.
As discussed on tech-kern.

Sync kqueue branch with -current.

Catch up to -current.

Changed clocktl interface to use syscallargs structures

Implement POSIX realtime timers, and reimplement getitimer() and setitimer()
in terms of them.

Catch up with -current.

Catch up to -current.

Added prototypes declarations for lower part of root-only time-related
system calls. This is the the clockctl pseudosriver

Catch up to -current.

remove some lint

Update thorpej_scsipi to -current as of a month ago

pullup (approved by releng-1-5)

add ppsratecheck(9).

distrib/sets/lists/comp/mi      1.251 -> 1.252
share/man/man9/Makefile         1.67 -> 1.68 (equivalent to)
share/man/man9/ppsratecheck.9   (new)
sys/kern/kern_time.c            1.49 -> 1.51, 1.52 -> 1.53
sys/sys/time.h                  1.29 -> 1.30

add ppsratelimit(9), which does event-per-sec rate limitation.
use it from icmp6 error rate limitation code.
XXX better name for the function?

Pull up revision 1.29 (via patch, requested by thorpej):
  Implement ratecheck(), a function which can help kernel programmers
  implement rate-limited actions.

Implement ratecheck(), a function which can help programmers implement
rate-limited actions.  See ratecheck(9) for details of its use.

Make settime() public because we need to use it for the Linux emulation.

Merge with Lite2 + local changes

Import 4.4BSD-Lite2

Import 4.4BSD-Lite for reference

Move clock_getres(), clock_gettime() and clock_settime() prototypes to <time.h>.

Update marc-pcmcia branch from trunk.

Declare prototype of lutimes(2).

Per 1003.1b-93, move nanosleep() prototype from <sys/time.h> to <time.h>
and add appropriate namespace protection.  Also protect timer_*() prototypes.

Update marc-pcmcia branch from trunk.

Avoid inclusion of user-level stuff for standalone code.

add prototypes for clock_getres(), clock_gettime(), clock_settime(),
  and nanosleep() syscalls.

Update from trunk.

Eliminate obsolete TIMEZONE and DST options.
Eliminate obsolete global kernel variable "struct timezone tz"
Add RTC_OFFSET option
Add global kernel variable rtc_offset, which is initialized by
RTC_OFFSET at kernel compile time.
on i386, x68k, mac68k, pc532 and arm32, RTC_OFFSET indicates how many
minutes west (east) of GMT the hardware RTC runs. Defaults to 0.
Places where tz variable was used to indicate this in the past have
been replaced with rtc_offset.
Add sysctl interface to rtc_offset.
Kill obsolete DST_* macros in sys/time.h
gettimeofday now always returns zeroed timezone if zone is requested.
settimeofday now ignores and logs attempts to set non-existant kernel
timezone.

Add timespecclear, timespecisset, timespeccmp, timespecadd, and
timespecsub macros for manipulating timespecs.

Add clock_gettime, clock_settime, and clock_getres

Prototype futimes().

Rename struct timespec fields to conform to POSIX.1b

posixization of timeval, timespec, and stat structs

KERNEL -> _KERNEL

Make timeradd() and timersub() more generic, and remove the underscores.

various function definitions.

Sync with CSRG.

Remove prototypes for dead functions.

Add __timeradd() and __timersub().

Add tickadj to clockinfo.

New RCS ID's, take two.  they're more aesthecially pleasant, and use 'NetBSD'

new standard, minimally intrusive ID format

update to 4.4-Lite; no serious changes

latent support for clock info

some prototype cleanup, eliminate/replace bogus types (e.g. quad and
u_quad) -> use better types (e.g. quad_t & u_quad_t in inodes),
some cleanup.

ANSIfications - lots of function prototyping.

add rcs ids as necessary, and also clean up headers

initial import of 386bsd-0.1 sources

Initial revision