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.\" Copyright (c) 2006 by Michael Kerrisk <mtk.manpages@gmail.com>
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Japanese Version Copyright (c) 2006 Akihiro MOTOKI all rights reserved.
.\" Translated 2006-07-16, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.TH ADJTIME 3 2008-06-22 "Linux" "Linux Programmer's Manual"
.SH ̾
adjtime \- ƥ९åƱĴ
.SH
.nf
.BI "int adjtime(const struct timeval *" delta ", struct timeval *" olddelta );
.fi
.sp
.in -4n
glibc εǽޥ
.RB ( feature_test_macros (7)
):
.in
.sp
.BR adjtime ():
_BSD_SOURCE
.SH
.BR adjtime ()
ؿ
.RB ( gettimeofday (2)
֤) ƥ९åĴ롣
Ĵ٤åλ̤
.I delta
ؤ¤Τǻꤵ롣
ι¤ΤϰʲηǤ:
.in +4n
.nf
struct timeval {
time_t tv_sec; /* */
suseconds_t tv_usec; /* ޥ */
};
.fi
.in
.PP
.I delta
Ĵ̤ξ硢Ĵ̤ãޤǥƥ९å
ԡɥåפ (Ĥޤꡢååͤ˾
û)
.I delta
Ĵ̤ξ硢Ʊͤˡǥå٤롣
.BR adjtime ()
ƤӽФ줿Ȥ˰
.BR adjtime ()
θƤӽФˤ륯åĴޤ¹ǡĸ
.BR adjtime ()
.I delta
NULL Ǥʤ硢¹Ĵߤ롣
Ǥ˼¹Ԥ줿ĴμäϹԤʤ
.I olddelta
NULL Ǥʤ硢
.I olddelta
ؤХåեˡĴǤޤλĤäƤ̤
Ǽ֤롣
.SH ֤
ȡ
.BR adjtime ()
0 ֤Ԥȡ\-1 ֤
.I errno
˥顼ͤåȤ롣
.SH 顼
.TP
.B EINVAL
.I delta
ǻꤵ줿Ĵ̤Ĥ줿ϰϤäƤʤ
.TP
.B EPERM
ƤӽФԤĴΤɬפʸ¤äƤʤ
Linux Ǥ
.B CAP_SYS_TIME
ѥӥƥɬפǤ롣
.SH
4.3BSD, System V.
.SH
.BR adjtime ()
ԤåĴϡåϾñĴäȤϰ
¹Ԥ롣
.BR adjtime ()
ȤäƻĴ뤳ȤǡƥॿΥ
ˤꡢĤΥץꥱ (㤨
.BR make (1)
ʤ) ˵ɤȤǤ롣
.BR adjtime ()
ϥƥ˾ĴԤ˻Ѥ뤳ȤԤƤ롣
ۤȤɤΥƥǤϡ
.I delta
˻ǤĴ̤¤ݤƤ롣
glibc μǤϡ
.I delta
(INT_MIN / 1000000 + 2) ʾ (INT_MAX / 1000000 \- 2) ʲ
(i386 Ǥ \-2145 ʾ 2145 ʲ) ǤʤФʤʤ
.SH Х
äΤ顢
.\" http://sourceware.org/bugzilla/show_bug?id=2449
.\" http://bugzilla.kernel.org/show_bug.cgi?id=6761
.I delta
NULL ꤹȡ̤λΥåĴ˴ؤͭʾ
.I olddelta
֤ʤȤХä (ξ硢
.BR adjtime ()
ϡ̤λΥåĴ˴ؤѹ֤٤Ǥ)
ΥХϡ
.\" adjtimex() οե饰 ADJ_OFFSET_SS_READ Τ
glibc 2.8 ʹߤǡLinux ͥ 2.6.26 ʹߤΥƥǽƤ롣
.SH Ϣ
.BR adjtimex (2),
.BR gettimeofday (2),
.BR time (7)
|
