2010-06-08 11:20:20 +04:00
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.\" $NetBSD: bintime_add.9,v 1.2 2010/06/08 07:20:20 wiz Exp $
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2010-06-08 09:40:26 +04:00
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.\"
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.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Jukka Ruohonen.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd June 8, 2010
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.Dt BINTIME_ADD 9
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.Os
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.Sh NAME
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.Nm bintime_add
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.Nd operations on
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.Dq bintime
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.Sh SYNOPSIS
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.In sys/time.h
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.Ft vid
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.Fn bintime_add "struct bintime *bt" "const struct bintime *bt2"
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.Ft void
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.Fn bintime_addx "struct bintime *bt" "uint64_t x"
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.Ft void
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.Fn bintime_sub "struct bintime *bt" "const struct bintime *bt2"
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.Ft void
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.Fn bintime2timespec "const struct bintime *bt" "struct timespec *ts"
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.Ft void
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.Fn timespec2bintime "const struct timespec *ts" "struct bintime *bt"
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.Ft void
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.Fn bintime2timeval "const struct bintime *bt" "struct timeval *tv"
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.Ft void
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.Fn timeval2bintime "const struct timeval *tv" "struct bintime *bt"
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.Sh DESCRIPTION
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These functions are provided for convenience as part of the machine-independent
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.Xr timecounter 9
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framework.
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All of them operate with the
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.Em bintime
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structure.
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.Pp
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The function
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.Fn bintime_add
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adds the time information stored in
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.Fa bt2
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to
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.Fa bt .
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Conversely,
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.Fn bintime_sub
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subtracts
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.Fa bt2
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from
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.Fa bt .
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The
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.Fn bintime_addx
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function stores the fraction of a second
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.Fa x
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to
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.Fa bt .
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.Pp
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Like the function names bespeak,
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.Fn bintime2timespec
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converts the
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.Em bintime
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structure to
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.Em struct timespec
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and
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.Fn timespec2bintime
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does the opposite.
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The functions
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.Fn bintime2timeval
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and
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.Fn timeval2bintime
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operate with
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.Em struct timeval
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instead.
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The result is stored to the right-hand side.
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.Sh SEE ALSO
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.Xr timeradd 3 ,
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.Xr timeval 3 ,
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.Xr bintime 9 ,
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2010-06-08 11:20:20 +04:00
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.Xr timecounter 9
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