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.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright (C) Markus Kuhn, 1996
.\"
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" the License, or (at your option) any later version.
.\"
.\" The GNU General Public License's references to "object code"
.\" and "executables" are to be interpreted as the output of any
.\" document formatting or typesetting system, including
.\" intermediate and printed output.
.\"
.\" This manual is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public
.\" License along with this manual; if not, write to the Free
.\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
.\" USA.
.\"
.\" 1995-11-26 Markus Kuhn <mskuhn@cip.informatik.uni-erlangen.de>
.\" First version written
.\"
.\" Japanese Version Copyright (c) 1997 HANATAKA Shinya
.\" all rights reserved.
.\" Translated Sun Feb 23 16:26:13 JST 1997
.\" by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
.\"
.\"WORD: memory
.\"WORD: paging ڡ
.\"WORD: lock å
.\"WORD: unlock å
.\"WORD: real-time ꥢ롦
.\"WORD: algorithm 르ꥺ
.\"WORD: security ƥ
.\"WORD: scheduling 塼
.\"WORD: password ѥ
.\"WORD: secret key ̩
.\"WORD: previlege ø
.\"WORD: super user ѡ桼
.\"
.TH MLOCK 2 "1995-11-26" "Linux 1.3.43" "Linux Programmer's Manual"
.SH ̾
mlock \- ΰΥڡػߤ
.SH
.nf
.B #include <sys/mman.h>
.sp
\fBint mlock(const void *\fIaddr\fB, size_t \fIlen\fB);
.fi
.SH
.B mlock
.I addr
ϤޤĹ
.I len
ХȤϰϤΥΥڡ(paging)ػߤ롣
.B mlock
ƥࡦ뤬ˤϻꤵ줿ϰϤˤ RAM
Ĥ³뤳Ȥݾڤ롢
.B munlock
.BR munlockall
ˤäƥڡå줿ꡢץλꡢ
.BR exec
ˤä¾ΥץϤꤹޤǤ RAM ˻Ĥ롣
.BR fork
Ԥʤä˻ҥץϥڡΥåѾʤ
ΥåˤϼĤλȤƻ롣ꥢ롦(real-time)
르ꥺȹ⤤ƥɬפʥǡǤ롣ꥢ롦
ץꥱϷŪʥߥ䥹塼ᤷ
ڡͽʤץμ¹٤⤿餹פװǤ롣
ꥢ롦ΥץꥱϤƤ
.BR sched_setscheduler
ǥꥢ롦ࡦ顼ѹ롣
Ź䥻ƥΥեȥϤФХѥɤ̩Υǡ
Τ褦ʽפʥǡڡη̡̩
åѤθΤž뤫⤷ʤƤϥƥ
եȥ RAM ̩ƽλäȸˤǤŨˤä
ǽˤʤ뤫⤷ʤ
Υå(lock)Ѥʤ㤨ʣ
.B mlock
.B mlockall
ƤӽФƥå줿ڡбϰϤ
.B munlock
θƤӽФ
.BR munlockall
ˤäƥå(unlock)롣
ʣξʣΥץ˥ޥåפƤڡϡʤȤĤξꡢ
ĤΥץǥåƤ¤ RAM ˻Ĥ³롣
.B mlock
.B munlock
ѲǽǤ POSIX ƥǤ
.B _POSIX_MEMLOCK_RANGE
<unistd.h> Ƥꡢ<limits.h> ˤ
.B PAGESIZE
ͤϥڡΥХȿƤ롣
.SH ֤
ϡ
.B mlock
ϥ֤顼ξ \-1 ֤졢
.I errno
Ŭڤꤵ졢ץΥɥ쥹֤ˤåѹʤ
.SH 顼
.TP
.B ENOMEM
ꤵ줿ɥ쥹ϰϤץΥɥ쥹֤˥ޥåפ줿ڡ
פʤ¤ĶΥڡå褦Ȥ
.TP
.B EPERM
ƤӽФץɬפøͭƤʤä
ѡ桼ΥץΤߤ
ڡå뤳ȤǤ롣
.TP
.B EINVAL
.I len
οǤʤ
.SH
POSIX.1b, SVr4. SVr4 ˤ¾ EAGAIN 顼ˤĤƤεҤ롣
.SH Ϣ
.BR munlock(2),
.BR mlockall(2),
.BR munlockall(2)
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