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[src/trunk]: src Add a manual page that describes the basic structures in <sy...
details: https://anonhg.NetBSD.org/src/rev/3dacad8b40f4
branches: trunk
changeset: 754937:3dacad8b40f4
user: jruoho <jruoho%NetBSD.org@localhost>
date: Mon May 17 07:10:15 2010 +0000
description:
Add a manual page that describes the basic structures in <sys/time.h>.
diffstat:
distrib/sets/lists/comp/mi | 20 ++++++-
share/man/man3/Makefile | 9 ++-
share/man/man3/timeval.3 | 138 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 164 insertions(+), 3 deletions(-)
diffs (261 lines):
diff -r 5f56fc545b98 -r 3dacad8b40f4 distrib/sets/lists/comp/mi
--- a/distrib/sets/lists/comp/mi Mon May 17 05:20:05 2010 +0000
+++ b/distrib/sets/lists/comp/mi Mon May 17 07:10:15 2010 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.1447 2010/05/16 15:33:29 jruoho Exp $
+# $NetBSD: mi,v 1.1448 2010/05/17 07:10:15 jruoho Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@@ -4760,6 +4760,8 @@
./usr/share/man/cat3/TAILQ_NEXT.0 comp-c-catman .cat
./usr/share/man/cat3/TAILQ_PREV.0 comp-c-catman .cat
./usr/share/man/cat3/TAILQ_REMOVE.0 comp-c-catman .cat
+./usr/share/man/cat3/TIMESPEC_TO_TIMEVAL.0 comp-c-catman .cat
+./usr/share/man/cat3/TIMEVAL_TO_TIMESPEC.0 comp-c-catman .cat
./usr/share/man/cat3/X509_NAME_ENTRY_get_object.0 comp-c-catman crypto,.cat
./usr/share/man/cat3/X509_NAME_add_entry_by_txt.0 comp-c-catman crypto,.cat
./usr/share/man/cat3/X509_NAME_get_index_by_NID.0 comp-c-catman crypto,.cat
@@ -6278,6 +6280,8 @@
./usr/share/man/cat3/iswupper.0 comp-c-catman .cat
./usr/share/man/cat3/iswxdigit.0 comp-c-catman .cat
./usr/share/man/cat3/isxdigit.0 comp-c-catman .cat
+./usr/share/man/cat3/itimerspec.0 comp-c-catman .cat
+./usr/share/man/cat3/itimerval.0 comp-c-catman .cat
./usr/share/man/cat3/j0.0 comp-c-catman .cat
./usr/share/man/cat3/j0f.0 comp-c-catman .cat
./usr/share/man/cat3/j1.0 comp-c-catman .cat
@@ -8221,6 +8225,8 @@
./usr/share/man/cat3/timerisset.0 comp-c-catman .cat
./usr/share/man/cat3/timersub.0 comp-c-catman .cat
./usr/share/man/cat3/times.0 comp-c-catman .cat
+./usr/share/man/cat3/timespec.0 comp-c-catman .cat
+./usr/share/man/cat3/timeval.0 comp-c-catman .cat
./usr/share/man/cat3/timezone.0 comp-c-catman .cat
./usr/share/man/cat3/tmpfile.0 comp-c-catman .cat
./usr/share/man/cat3/tmpnam.0 comp-c-catman .cat
@@ -10654,6 +10660,8 @@
./usr/share/man/html3/TAILQ_NEXT.html comp-c-htmlman html
./usr/share/man/html3/TAILQ_PREV.html comp-c-htmlman html
./usr/share/man/html3/TAILQ_REMOVE.html comp-c-htmlman html
+./usr/share/man/html3/TIMESPEC_TO_TIMEVAL.html comp-c-htmlman html
+./usr/share/man/html3/TIMEVAL_TO_TIMESPEC.html comp-c-htmlman html
./usr/share/man/html3/X509_NAME_ENTRY_get_object.html comp-c-htmlman crypto,html
./usr/share/man/html3/X509_NAME_add_entry_by_txt.html comp-c-htmlman crypto,html
./usr/share/man/html3/X509_NAME_get_index_by_NID.html comp-c-htmlman crypto,html
@@ -12113,6 +12121,8 @@
./usr/share/man/html3/iswupper.html comp-c-htmlman html
./usr/share/man/html3/iswxdigit.html comp-c-htmlman html
./usr/share/man/html3/isxdigit.html comp-c-htmlman html
+./usr/share/man/html3/itimerspec.html comp-c-htmlman html
+./usr/share/man/html3/itimerval.html comp-c-htmlman html
./usr/share/man/html3/j0.html comp-c-htmlman html
./usr/share/man/html3/j0f.html comp-c-htmlman html
./usr/share/man/html3/j1.html comp-c-htmlman html
@@ -13978,6 +13988,8 @@
./usr/share/man/html3/timerisset.html comp-c-htmlman html
./usr/share/man/html3/timersub.html comp-c-htmlman html
./usr/share/man/html3/times.html comp-c-htmlman html
+./usr/share/man/html3/timespec.html comp-c-htmlman html
+./usr/share/man/html3/timeval.html comp-c-htmlman html
./usr/share/man/html3/timezone.html comp-c-htmlman html
./usr/share/man/html3/tmpfile.html comp-c-htmlman html
./usr/share/man/html3/tmpnam.html comp-c-htmlman html
@@ -16348,6 +16360,8 @@
./usr/share/man/man3/TAILQ_NEXT.3 comp-c-man .man
./usr/share/man/man3/TAILQ_PREV.3 comp-c-man .man
./usr/share/man/man3/TAILQ_REMOVE.3 comp-c-man .man
+./usr/share/man/man3/TIMESPEC_TO_TIMEVAL.3 comp-c-man .man
+./usr/share/man/man3/TIMEVAL_TO_TIMESPEC.3 comp-c-man .man
./usr/share/man/man3/X509_NAME_ENTRY_get_object.3 comp-c-man crypto,.man
./usr/share/man/man3/X509_NAME_add_entry_by_txt.3 comp-c-man crypto,.man
./usr/share/man/man3/X509_NAME_get_index_by_NID.3 comp-c-man crypto,.man
@@ -17866,6 +17880,8 @@
./usr/share/man/man3/iswupper.3 comp-c-man .man
./usr/share/man/man3/iswxdigit.3 comp-c-man .man
./usr/share/man/man3/isxdigit.3 comp-c-man .man
+./usr/share/man/man3/itimerspec.3 comp-c-man .man
+./usr/share/man/man3/itimerval.3 comp-c-man .man
./usr/share/man/man3/j0.3 comp-c-man .man
./usr/share/man/man3/j0f.3 comp-c-man .man
./usr/share/man/man3/j1.3 comp-c-man .man
@@ -19805,6 +19821,8 @@
./usr/share/man/man3/timerisset.3 comp-c-man .man
./usr/share/man/man3/timersub.3 comp-c-man .man
./usr/share/man/man3/times.3 comp-c-man .man
+./usr/share/man/man3/timespec.3 comp-c-man .man
+./usr/share/man/man3/timeval.3 comp-c-man .man
./usr/share/man/man3/timezone.3 comp-c-man .man
./usr/share/man/man3/tmpfile.3 comp-c-man .man
./usr/share/man/man3/tmpnam.3 comp-c-man .man
diff -r 5f56fc545b98 -r 3dacad8b40f4 share/man/man3/Makefile
--- a/share/man/man3/Makefile Mon May 17 05:20:05 2010 +0000
+++ b/share/man/man3/Makefile Mon May 17 07:10:15 2010 +0000
@@ -1,11 +1,11 @@
-# $NetBSD: Makefile,v 1.51 2010/05/16 15:33:30 jruoho Exp $
+# $NetBSD: Makefile,v 1.52 2010/05/17 07:10:16 jruoho Exp $
# @(#)Makefile 8.2 (Berkeley) 12/13/93
MAN= _DIAGASSERT.3 __CONCAT.3 __UNCONST.3 CMSG_DATA.3 \
__arraycount.3 assert.3 bits.3 bitstring.3 dirent.3 dlfcn.3 end.3 \
fast_divide32.3 ffs32.3 gcq.3 intro.3 inttypes.3 iso646.3 offsetof.3 \
queue.3 rb.3 stdarg.3 stdbool.3 stddef.3 stdint.3 stdlib.3 sysexits.3 \
- tgmath.3 timeradd.3 tree.3 types.3 varargs.3
+ tgmath.3 timeradd.3 timeval.3 tree.3 types.3 varargs.3
USETBL= # used by queue.3
@@ -209,6 +209,11 @@
timeradd.3 timerclear.3 \
timeradd.3 timerisset.3 \
timeradd.3 timercmp.3
+MLINKS+=timeval.3 timespec.3 \
+ timeval.3 itimerval.3 \
+ timeval.3 itimerspec.3 \
+ timeval.3 TIMEVAL_TO_TIMESPEC.3 \
+ timeval.3 TIMESPEC_TO_TIMEVAL.3
MLINKS+=tree.3 SPLAY_PROTOTYPE.3 tree.3 SPLAY_GENERATE.3 \
tree.3 SPLAY_ENTRY.3 tree.3 SPLAY_HEAD.3 \
tree.3 SPLAY_INITIALIZER.3 tree.3 SPLAY_ROOT.3 \
diff -r 5f56fc545b98 -r 3dacad8b40f4 share/man/man3/timeval.3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/share/man/man3/timeval.3 Mon May 17 07:10:15 2010 +0000
@@ -0,0 +1,138 @@
+.\" $NetBSD: timeval.3,v 1.1 2010/05/17 07:10:16 jruoho Exp $
+.\"
+.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Jukka Ruohonen.
+.\"
+.\" 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+.\"
+.Dd May 17, 2010
+.Dt TIMESPEC 3
+.Os
+.Sh NAME
+.Nm timeval ,
+.Nm timespec ,
+.Nm itimerval ,
+.Nm itimerspec ,
+.Nd time structures
+.Sh SYNOPSIS
+.In sys/time.h
+.Ft void
+.Fn TIMEVAL_TO_TIMESPEC "struct timeval *tv" "struct timespec *ts"
+.Ft void
+.Fn TIMESPEC_TO_TIMEVAL "struct timeval *tv" "struct timespec *ts"
+.Sh DESCRIPTION
+The
+.In sys/time.h
+header, included by
+.In time.h ,
+defines various structures related to time and timers.
+.Bl -enum -offset 1n
+.It
+The following structure is used by
+.Xr gettimeofday 2 ,
+among others:
+.Bd -literal -offset indent
+struct timeval {
+ time_t tv_sec;
+ suseconds_t tv_usec;
+};
+.Ed
+.Pp
+The
+.Va tv_sec
+member represents the elapsed time, in whole seconds.
+The
+.Va tv_usec
+member captures rest of the elapsed times,
+represented as the number of microseconds.
+.It
+The following structure is used by
+.Xr nanosleep 2 ,
+among others:
+.Bd -literal -offset indent
+struct timespec {
+ time_t tv_sec;
+ long tv_nsec;
+};
+.Ed
+.Pp
+The
+.Va tv_sec
+member is again the number of elapsed time in whole seconds.
+The
+.Va tv_nsec
+member represents the rest of the elapsed time in nanoseconds.
+.Pp
+A microsecond is equal to one millionth of a second,
+1000 nanoseconds, or 1/1000 milliseconds.
+To ease the conversions, the macros
+.Fn TIMEVAL_TO_TIMESPEC
+and
+.Fn TIMESPEC_TO_TIMEVAL
+can be used to convert between
+.Em struct timeval
+and
+.Em struct timespec .
+.It
+The following structure is used by
+.Xr setitimer 2 ,
+among others:
+.Bd -literal -offset indent
+struct itimerval {
+ struct timeval it_interval;
+ struct timeval it_value;
+};
+.Ed
+.It
+The following structure is used by
+.Xr timer_settime 2 ,
+among others:
+.Bd -literal -offset indent
+struct itimerspec {
+ struct timespec it_interval;
+ struct timespec it_value;
+};
+.Ed
+.Pp
+Both
+.Em struct itimerval
+and
+.Em struct itimerspec
+are used to specify when a timer expires.
+Generally,
+.Va it_interval
+specifies the period between successive timer expirations.
+A value zero implies that the alarm will fire only once.
+If
+.Va it_value
+is non-zero, it indicates the time left to the next timer expiration.
+A value zero implies that the timer is disabled.
+.El
+.Pp
+.Sh STANDARDS
+These structures conform to
+.St -p1003.1-2004 .
+.Sh SEE ALSO
+.Xr timeradd 3
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