137 lines
4.5 KiB
Groff
137 lines
4.5 KiB
Groff
.\" %FreeBSD: src/lib/libc/sys/minherit.2,v 1.19 2002/12/18 09:22:31 ru Exp %
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.\"
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.\" Copyright (c) 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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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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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)minherit.2 8.1 (Berkeley) 6/9/93
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.\"
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.\" $FreeBSD$
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.Dd February 17, 1996
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.Dt MINHERIT 2
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.Os
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.Sh ̾¾Î
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.Nm minherit
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.Nd ¥Ú¡¼¥¸¤Î·Ñ¾µ¤òÀ©¸æ¤¹¤ë
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.Sh ¥é¥¤¥Ö¥é¥ê
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.Lb libc
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.Sh ½ñ¼°
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.In sys/mman.h
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.Ft int
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.Fn minherit "void *addr" "size_t len" "int inherit"
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.Sh ²òÀâ
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.Fn minherit
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¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï¡¢»ØÄê¤Î¥Ú¡¼¥¸¤¬·Ñ¾µ¤ÎºÝ¤ÎÆÃÀ¤È¤·¤Æ
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.Fa inherit
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¤ò»ý¤Ä¤è¤¦¤ËÊѹ¹¤·¤Þ¤¹¡£
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¤¹¤Ù¤Æ¤Î¼ÂÁõ¤Ë¤ª¤¤¤Æ¡¢·Ñ¾µ¤ÎºÝ¤ÎÆÃÀ¤¬¥Ú¡¼¥¸Ã±°Ì¤ÇÀßÄê¤Ç¤¤ë¤³¤È¤¬
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Êݾڤµ¤ì¤ë¤Æ¤¤¤ë¤ï¤±¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£
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Êѹ¹¤Îñ°Ì¤Ï¥ê¡¼¥¸¥ç¥óÁ´ÂΤ«¤â¤·¤ì¤Þ¤»¤ó¡£
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.Fx
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¤Ï¡¢¥Ú¡¼¥¸Ëè¤Ë·Ñ¾µÆÃÀ¤òÄ´À°¤¹¤ëµ¡Ç½¤ò»ý¤Á¤Þ¤¹¡£
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·Ñ¾µ¤Ï¡¢
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.Fn fork
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¤ÇºîÀ®¤µ¤ì¤¿»Ò¶¡¤ËÂФ·¤Æ¤Î¤ß±Æ¶Á¤·¤Þ¤¹¡£
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.Fn exec
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¤Ë¤Ï±Æ¶Á¤¢¤ê¤Þ¤»¤ó¡£
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exec ¤µ¤ì¤¿¥×¥í¥»¥¹¤Ï¡¢¥¢¥É¥ì¥¹¶õ´ÖÁ´ÂΤòÃÖ¤´¹¤¨¤Þ¤¹¡£
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¤³¤Î¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï¿Æ¤Î¥¢¥É¥ì¥¹¶õ´Ö¤ËÂФ·¤Æ¤â¤Þ¤¿±Æ¶Á¤¢¤ê¤Þ¤»¤ó
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(¿Æ»Ò¤Ë¤è¤ë¥¢¥É¥ì¥¹¶õ´Ö¤Î¶¦Í¤ÏÀøºßŪ¤Ë¤¢¤êÆÀ¤Þ¤¹¤¬¡¢¤³¤ì¤Ï½ü³°¤·¤Þ¤¹)¡£
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.Pp
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·Ñ¾µ¤ÏÆñ²ò¤Êµ¡Ç½¤Ç¤¢¤ê¡¢¤Û¤È¤ó¤É¤¬
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.Fn mmap
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¤Î
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.Dv MAP_SHARED
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µ¡Ç½¤ÇÃÖ¤´¹¤¨¤é¤ì¤Æ¤¤¤Þ¤¹¡£
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¤·¤«¤·¤Ê¤¬¤é¡¢
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.Fn minherit
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¤ò»ÈÍѤ·¤Æ¡¢
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.Dv MAP_PRIVATE
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¤Ç¥Þ¥Ã¥×¤µ¤ì¤¿¥á¥â¥ê¥Ö¥í¥Ã¥¯¤ò¿Æ»Ò´Ö¤Ç¶¦Í²Äǽ¤Ç¤¹¡£
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¤³¤ì¤Ë¤è¤ê¡¢¿Æ¤â¤·¤¯¤Ï»Ò¤Ë¤è¤ë½¤Àµ¤Ï¶¦Í¤µ¤ì¤Þ¤¹¤¬¡¢
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¸µ¡¹²¼Áؤˤ¢¤ë¥Õ¥¡¥¤¥ë¤ÏÊѹ¹¤µ¤ì¤Þ¤»¤ó¡£
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.Bl -tag -width ".Dv INHERIT_SHARE"
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.It Dv INHERIT_SHARE
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ËÜ¥ª¥×¥·¥ç¥ó¤Ï¡¢ÂоݤΥ¢¥É¥ì¥¹¶õ´Ö¤ò¿Æ»Ò´Ö¤Ç¶¦Í¤µ¤»¤Þ¤¹¡£
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ËÜ¥ª¥×¥·¥ç¥ó¤Ï¡¢
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¸µ¡¹²¼Áؤˤ¢¤ë¥Ð¥Ã¥¥ó¥°¥¹¥È¥¢¤¬¤É¤Î¤è¤¦¤Ë¥Þ¥Ã¥×¤µ¤ì¤ë¤«¤Ë¤Ï¡¢±Æ¶Á¤·¤Þ¤»¤ó¡£
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.It Dv INHERIT_NONE
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ËÜ¥ª¥×¥·¥ç¥ó¤Ï¡¢ÂоݤΥ¢¥É¥ì¥¹¶õ´Ö¤Î·Ñ¾µ¤ò´°Á´¤ËËɻߤ·¤Þ¤¹¡£
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Åö³º¥¢¥É¥ì¥¹¶õ´Ö¤Ï»Ò¤ÎÃæ¤Ç¤Ï¥¢¥ó¥Þ¥Ã¥×¤µ¤ì¤Þ¤¹¡£
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.It Dv INHERIT_COPY
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ËÜ¥ª¥×¥·¥ç¥ó¤Ï¡¢¥¢¥É¥ì¥¹¶õ´Ö¤ò»Ò¤ËÂФ·¥³¥Ô¡¼¥ª¥ó¥é¥¤¥È¤Ç·Ñ¾µ¤µ¤»¤Þ¤¹¡£
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ËÜ¥ª¥×¥·¥ç¥ó¤Ë¤ÏÉÔ¹¬¤ÊÉûºîÍѤ¬¤¢¤ê¡¢
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¿Æ¤¬ fork ¤¹¤ë¤È¤¤Ë¥¢¥É¥ì¥¹¶õ´Ö¤¬¥³¥Ô¡¼¥ª¥ó¥é¥¤¥È¤Ë¤Ê¤Ã¤Æ¤·¤Þ¤¤¤Þ¤¹¡£
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¸µ¡¹¤Î¥Þ¥Ã¥Ô¥ó¥°¤¬
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.Dv MAP_SHARED
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¤Î¾ì¹ç¡¢
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¿Æ¤¬ fork ¤·¤¿¸å¤Ë¤Ï¤³¤ì¤Ï¿Æ¤Ë¤ª¤¤¤Æ¤Ï¶¦Í¤µ¤ì¤Þ¤»¤ó¡£
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¤Þ¤¿¡¢¸µ¤Î¶¦Í¥Ð¥Ã¥¥ó¥°¥¹¥È¥¢¥Þ¥Ã¥Ô¥ó¥°¤Ï¡¢
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¿Æ¤Ë¤ª¤¤¤Æ¥¢¥ó¥Þ¥Ã¥×¤·¤ÆºÆ¥Þ¥Ã¥×¤¹¤ë°Ê³°¤Ë²óÉü¤·¤è¤¦¤¬¤¢¤ê¤Þ¤»¤ó¡£
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.El
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.Sh Ìá¤êÃÍ
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.Rv -std minherit
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.Sh ¥¨¥é¡¼
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.Fn minherit
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¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï¼¡¤Î¾ì¹ç¤Ë½èÍý¤ò¼ºÇÔ¤·¤Þ¤¹:
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.Bl -tag -width Er
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.It Bq Er EINVAL
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.Fa addr
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°ú¿ô¤È
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.Fa len
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°ú¿ô¤Ë¤è¤Ã¤Æ»ØÄꤵ¤ì¤ë²¾ÁÛ¥¢¥É¥ì¥¹ÈϰϤ¬Í¸ú¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¡£
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.It Bq Er EACCES
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.Fa inherit
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°ú¿ô¤Ë¤è¤Ã¤Æ»ØÄꤵ¤ì¤ë¥Õ¥é¥°¤¬¡¢
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.Fa addr
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°ú¿ô¤È
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.Fa len
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°ú¿ô¤Ë¤è¤Ã¤Æ»ØÄꤵ¤ì¤¿¥Ú¡¼¥¸¤ËÂФ·¤ÆŬÀڤǤϤ¢¤ê¤Þ¤»¤ó¤Ç¤·¤¿¡£
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.El
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.Sh ¥Ð¥°
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°ìÅÙ
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.Dv MAP_PRIVATE
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¤â¤·¤¯¤Ï
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.Dv MAP_SHARED
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¤·¤Æ¤¤¤ë¤â¤Î¤Ë·Ñ¾µ¤òÀßÄꤹ¤ë¤È¡¢Îΰè¤ò¥¢¥ó¥Þ¥Ã¥×¤·¤ÆºÆ¥Þ¥Ã¥×¤¹¤ë°Ê³°¤Ë
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¤â¤È¤â¤È¤Î¥³¥Ô¡¼¥ª¥ó¥é¥¤¥È¤Î°ÕÌ£¤ò²óÉü¤µ¤»¤ë¤³¤È¤Ï¤Ç¤¤Þ¤»¤ó¡£
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.Sh ´ØÏ¢¹àÌÜ
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.Xr fork 2 ,
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.Xr madvise 2 ,
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.Xr mincore 2 ,
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.Xr mprotect 2 ,
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.Xr msync 2 ,
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.Xr munmap 2 ,
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.Xr rfork 2
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.Sh Îò»Ë
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.Fn minherit
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¥·¥¹¥Æ¥à¥³¡¼¥ë¤Ï
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.Ox
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¤Ç¤Ï¤¸¤á¤ÆÅо줷¤Þ¤·¤¿¡£
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