Index: stable/12/lib/libc/sys/clock_gettime.2
===================================================================
--- stable/12/lib/libc/sys/clock_gettime.2	(revision 357877)
+++ stable/12/lib/libc/sys/clock_gettime.2	(revision 357878)
@@ -1,176 +1,184 @@
 .\"	$OpenBSD: clock_gettime.2,v 1.4 1997/05/08 20:21:16 kstailey Exp $
 .\"
 .\" Copyright (c) 1980, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\" 3. Neither the name of the University nor the names of its contributors
 .\"    may be used to endorse or promote products derived from this software
 .\"    without specific prior written permission.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\" $FreeBSD$
 .\"
-.Dd March 20, 2017
+.Dd December 7, 2019
 .Dt CLOCK_GETTIME 2
 .Os
 .Sh NAME
 .Nm clock_gettime ,
 .Nm clock_settime ,
 .Nm clock_getres
 .Nd get/set/calibrate date and time
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
 .In time.h
 .Ft int
 .Fn clock_gettime "clockid_t clock_id" "struct timespec *tp"
 .Ft int
 .Fn clock_settime "clockid_t clock_id" "const struct timespec *tp"
 .Ft int
 .Fn clock_getres "clockid_t clock_id" "struct timespec *tp"
 .Sh DESCRIPTION
 The
 .Fn clock_gettime
 and
 .Fn clock_settime
 system calls allow the calling process to retrieve or set the value
 used by a clock which is specified by
 .Fa clock_id .
 .Pp
 The
 .Fa clock_id
 argument can be a value obtained from
 .Xr clock_getcpuclockid 3
 or
 .Xr pthread_getcpuclockid 3
 as well as the following values:
 .Pp
 .Bl -tag -width indent -compact
 .It Dv CLOCK_REALTIME
 .It Dv CLOCK_REALTIME_PRECISE
 .It Dv CLOCK_REALTIME_FAST
 Increments as a wall clock should.
 .It Dv CLOCK_MONOTONIC
 .It Dv CLOCK_MONOTONIC_PRECISE
 .It Dv CLOCK_MONOTONIC_FAST
 Increments in SI seconds.
 .It Dv CLOCK_UPTIME
 .It Dv CLOCK_UPTIME_PRECISE
 .It Dv CLOCK_UPTIME_FAST
 Starts at zero when the kernel boots and increments
 monotonically in SI seconds while the machine is running.
 .It Dv CLOCK_VIRTUAL
 Increments only when
 the CPU is running in user mode on behalf of the calling process.
 .It Dv CLOCK_PROF
 Increments when the CPU is running in user or kernel mode.
 .It Dv CLOCK_SECOND
 Returns the current second without performing a full time counter
 query, using an in-kernel cached value of the current second.
 .It Dv CLOCK_PROCESS_CPUTIME_ID
 Returns the execution time of the calling process.
 .It Dv CLOCK_THREAD_CPUTIME_ID
 Returns the execution time of the calling thread.
 .El
 .Pp
 The clock IDs
 .Fa CLOCK_REALTIME_FAST ,
 .Fa CLOCK_MONOTONIC_FAST ,
 .Fa CLOCK_UPTIME_FAST
 are analogs of corresponding IDs without _FAST suffix but do not perform
 a full time counter query, so their accuracy is one timer tick.
 Similarly,
 .Fa CLOCK_REALTIME_PRECISE ,
 .Fa CLOCK_MONOTONIC_PRECISE ,
 .Fa CLOCK_UPTIME_PRECISE
 are used to get the most exact value as possible, at the expense of
 execution time.
 .Pp
 The structure pointed to by
 .Fa tp
 is defined in
 .In sys/timespec.h
 as:
 .Bd -literal
 struct timespec {
 	time_t	tv_sec;		/* seconds */
 	long	tv_nsec;	/* and nanoseconds */
 };
 .Ed
 .Pp
 Only the super-user may set the time of day, using only
 .Fa CLOCK_REALTIME .
 If the system securelevel is greater than 1 (see
 .Xr init 8 ) ,
 the time may only be advanced.
 This limitation is imposed to prevent a malicious super-user
 from setting arbitrary time stamps on files.
 The system time can still be adjusted backwards using the
 .Xr adjtime 2
 system call even when the system is secure.
 .Pp
 The resolution (granularity) of a clock is returned by the
 .Fn clock_getres
 system call.
 This value is placed in a (non-NULL)
 .Fa *tp .
 .Sh RETURN VALUES
 .Rv -std
 .Sh ERRORS
 The following error codes may be set in
 .Va errno :
 .Bl -tag -width Er
 .It Bq Er EINVAL
 The
 .Fa clock_id
 or
 .Fa timespec
 argument
 was not a valid value.
 .It Bq Er EPERM
 A user other than the super-user attempted to set the time.
 .El
 .Sh SEE ALSO
 .Xr date 1 ,
 .Xr adjtime 2 ,
 .Xr clock_getcpuclockid 3 ,
 .Xr ctime 3 ,
 .Xr pthread_getcpuclockid 3 ,
 .Xr timed 8
 .Sh STANDARDS
 The
 .Fn clock_gettime ,
 .Fn clock_settime ,
 and
 .Fn clock_getres
 system calls conform to
 .St -p1003.1b-93 .
 The clock IDs
 .Fa CLOCK_REALTIME_FAST ,
 .Fa CLOCK_REALTIME_PRECISE ,
 .Fa CLOCK_MONOTONIC_FAST ,
 .Fa CLOCK_MONOTONIC_PRECISE ,
 .Fa CLOCK_UPTIME ,
 .Fa CLOCK_UPTIME_FAST ,
 .Fa CLOCK_UPTIME_PRECISE ,
 .Fa CLOCK_SECOND
 are FreeBSD extensions to the POSIX interface.
+.Sh HISTORY
+The
+.Fn clock_gettime ,
+.Fn clock_settime ,
+and
+.Fn clock_getres
+system calls first appeared in
+.Fx 3.0 .
Index: stable/12/lib/libc/sys/lio_listio.2
===================================================================
--- stable/12/lib/libc/sys/lio_listio.2	(revision 357877)
+++ stable/12/lib/libc/sys/lio_listio.2	(revision 357878)
@@ -1,218 +1,223 @@
 .\" Copyright (c) 2003 Tim J. Robbins
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .\" $FreeBSD$
 .\"
-.Dd Oct 23, 2017
+.Dd Dec 7, 2019
 .Dt LIO_LISTIO 2
 .Os
 .Sh NAME
 .Nm lio_listio
 .Nd "list directed I/O (REALTIME)"
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
 .In aio.h
 .Ft int
 .Fo lio_listio
 .Fa "int mode"
 .Fa "struct aiocb * const list[]"
 .Fa "int nent"
 .Fa "struct sigevent *sig"
 .Fc
 .Sh DESCRIPTION
 The
 .Fn lio_listio
 function initiates a list of I/O requests with a single function call.
 The
 .Fa list
 argument is an array of pointers to
 .Vt aiocb
 structures describing each operation to perform,
 with
 .Fa nent
 elements.
 .Dv NULL
 elements are ignored.
 .Pp
 The
 .Va aio_lio_opcode
 field of each
 .Vt aiocb
 specifies the operation to be performed.
 The following operations are supported:
 .Bl -tag -width ".Dv LIO_WRITE"
 .It Dv LIO_READ
 Read data as if by a call to
 .Xr aio_read 2 .
 .It Dv LIO_NOP
 No operation.
 .It Dv LIO_WRITE
 Write data as if by a call to
 .Xr aio_write 2 .
 .El
 .Pp
 If the
 .Fa mode
 argument is
 .Dv LIO_WAIT ,
 .Fn lio_listio
 does not return until all the requested operations have been completed.
 If
 .Fa mode
 is
 .Dv LIO_NOWAIT ,
 .Fa sig
 can be used to request asynchronous notification when all operations have
 completed.
 If
 .Fa sig
 is
 .Dv NULL ,
 no notification is sent.
 .Pp
 For
 .Dv SIGEV_KEVENT
 notifications,
 the posted kevent will contain:
 .Bl -column ".Va filter"
 .It Sy Member Ta Sy Value
 .It Va ident Ta Fa list
 .It Va filter Ta Dv EVFILT_LIO
 .It Va udata Ta
 value stored in
 .Fa sig->sigev_value
 .El
 .Pp
 For
 .Dv SIGEV_SIGNO
 and
 .Dv SIGEV_THREAD_ID
 notifications,
 the information for the queued signal will include
 .Dv SI_ASYNCIO
 in the
 .Va si_code
 field and the value stored in
 .Fa sig->sigev_value
 in the
 .Va si_value
 field.
 .Pp
 For
 .Dv SIGEV_THREAD
 notifications,
 the value stored in
 .Fa sig->sigev_value
 is passed to the
 .Fa sig->sigev_notify_function
 as described in
 .Xr sigevent 3 .
 .Pp
 The order in which the requests are carried out is not specified;
 in particular, there is no guarantee that they will be executed in
 the order 0, 1, ...,
 .Fa nent Ns \-1 .
 .Sh RETURN VALUES
 If
 .Fa mode
 is
 .Dv LIO_WAIT ,
 the
 .Fn lio_listio
 function returns 0 if the operations completed successfully,
 otherwise \-1.
 .Pp
 If
 .Fa mode
 is
 .Dv LIO_NOWAIT ,
 the
 .Fn lio_listio
 function returns 0 if the operations are successfully queued,
 otherwise \-1.
 .Sh ERRORS
 The
 .Fn lio_listio
 function will fail if:
 .Bl -tag -width Er
 .It Bq Er EAGAIN
 There are not enough resources to enqueue the requests.
 .It Bq Er EAGAIN
 The request would cause the system-wide limit
 .Dv {AIO_MAX}
 to be exceeded.
 .It Bq Er EINVAL
 The
 .Fa mode
 argument is neither
 .Dv LIO_WAIT
 nor
 .Dv LIO_NOWAIT ,
 or
 .Fa nent
 is greater than
 .Dv {AIO_LISTIO_MAX} .
 .It Bq Er EINVAL
 The asynchronous notification method in
 .Fa sig->sigev_notify
 is invalid or not supported.
 .It Bq Er EINTR
 A signal interrupted the system call before it could be completed.
 .It Bq Er EIO
 One or more requests failed.
 .El
 .Pp
 In addition, the
 .Fn lio_listio
 function may fail for any of the reasons listed for
 .Xr aio_read 2
 and
 .Xr aio_write 2 .
 .Pp
 If
 .Fn lio_listio
 succeeds, or fails with an error code of
 .Er EAGAIN , EINTR ,
 or
 .Er EIO ,
 some of the requests may have been initiated.
 The caller should check the error status of each
 .Vt aiocb
 structure individually by calling
 .Xr aio_error 2 .
 .Sh SEE ALSO
 .Xr aio_error 2 ,
 .Xr aio_read 2 ,
 .Xr aio_write 2 ,
 .Xr read 2 ,
 .Xr write 2 ,
 .Xr sigevent 3 ,
 .Xr siginfo 3 ,
 .Xr aio 4
 .Sh STANDARDS
 The
 .Fn lio_listio
 function is expected to conform to
 .St -p1003.1-2001 .
+.Sh HISTORY
+The
+.Fn lio_listio
+system call first appeared in
+.Fx 3.0 .
Index: stable/12
===================================================================
--- stable/12	(revision 357877)
+++ stable/12	(revision 357878)

Property changes on: stable/12
___________________________________________________________________
Modified: svn:mergeinfo
## -0,0 +0,1 ##
   Merged /head:r355488-355489