Module Name: src Committed By: jruoho Date: Mon May 17 07:10:16 UTC 2010
Modified Files: src/distrib/sets/lists/comp: mi src/share/man/man3: Makefile Added Files: src/share/man/man3: timeval.3 Log Message: Add a manual page that describes the basic structures in <sys/time.h>. To generate a diff of this commit: cvs rdiff -u -r1.1447 -r1.1448 src/distrib/sets/lists/comp/mi cvs rdiff -u -r1.51 -r1.52 src/share/man/man3/Makefile cvs rdiff -u -r0 -r1.1 src/share/man/man3/timeval.3 Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/distrib/sets/lists/comp/mi diff -u src/distrib/sets/lists/comp/mi:1.1447 src/distrib/sets/lists/comp/mi:1.1448 --- src/distrib/sets/lists/comp/mi:1.1447 Sun May 16 15:33:29 2010 +++ src/distrib/sets/lists/comp/mi Mon May 17 07:10:15 2010 @@ -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 Index: src/share/man/man3/Makefile diff -u src/share/man/man3/Makefile:1.51 src/share/man/man3/Makefile:1.52 --- src/share/man/man3/Makefile:1.51 Sun May 16 15:33:30 2010 +++ src/share/man/man3/Makefile Mon May 17 07:10:16 2010 @@ -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 \ Added files: Index: src/share/man/man3/timeval.3 diff -u /dev/null src/share/man/man3/timeval.3:1.1 --- /dev/null Mon May 17 07:10:16 2010 +++ src/share/man/man3/timeval.3 Mon May 17 07:10:16 2010 @@ -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