125 lines
3.9 KiB
Groff
125 lines
3.9 KiB
Groff
.\" Copyright (c) 1980, 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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.\" @(#)vfork.2 8.1 (Berkeley) 6/4/93
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.\" %FreeBSD: src/lib/libc/sys/vfork.2,v 1.11.2.1 1999/08/29 14:49:31 peter Exp %
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.\"
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.Dd June 4, 1993
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.Dt VFORK 2
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.Os BSD 4
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.Sh ̾¾Î
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.Nm vfork
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.Nd ¸úΨŪ¤ÊÊýË¡¤Ç²¾ÁÛ¥á¥â¥ê¤Ë¿·¤·¤¤¥×¥í¥»¥¹¤òÀ¸À®
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.Sh ½ñ¼°
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.Fd #include <unistd.h>
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.Ft int
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.Fn vfork void
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.Sh ²òÀâ
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.Fn vfork
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¤Ç¤Ï¡¢¸Å¤¤¥×¥í¥»¥¹¤Î¥¢¥É¥ì¥¹¶õ´Ö¤ò´°Á´¤Ë¥³¥Ô¡¼¤»¤º¤Ë¡¢
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¿·¤·¤¤¥×¥í¥»¥¹¤òºîÀ®¤Ç¤¤Þ¤¹¡£
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¥Ú¡¼¥¸¤µ¤ì¤¿´Ä¶¤Ç¤Ï¡¢¸Å¤¤¥×¥í¥»¥¹¤Î¥¢¥É¥ì¥¹¶õ´Ö¤ò´°Á´¤Ë¥³¥Ô¡¼¤¹¤ë¤³¤È¤Ï¡¢
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.Xr fork 2
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.Xr execve 2
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.Fn vfork
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¤Ï¡¢
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.Xr execve 2
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¤ò¸Æ¤Ó½Ð¤¹¤«¡¢½ªÎ»¤¹¤ë (
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.Xr _exit 2
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¤ò¸Æ¤Ó½Ð¤¹¤«°Û¾ï½ªÎ»¤¹¤ë) ¤Þ¤Ç»Ò¤¬¿Æ¤Î¥á¥â¥ê¤È¥³¥ó¥È¥í¡¼¥ë¤Î
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.Xr fork 2
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.Pp
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.Fn vfork
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¤Ï¡¢0 ¤ò»Ò¤Î¥³¥ó¥Æ¥¥¹¥È¤Ë¡¢¤½¤·¤Æ (¸å¤Ë) »Ò¤Î pid ¤ò
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.Pp
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.Fn vfork
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¤Ï
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.Xr fork 2
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¤Î¤è¤¦¤Ë»ÈÍѤǤ¤Þ¤¹¡£¤·¤«¤·¡¢
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.Fn vfork
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¤ò¸Æ¤Ó½Ð¤·¤¿¥×¥í¥·¡¼¥¸¥ã¤«¤é»Ò¤Î¥³¥ó¥Æ¥¥¹¥È¤ÇÆ°ºî¤·¤Æ¤¤¤ë´Ö¤Ë
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.Fn vfork
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¤«¤éÌá¤ë¤È¡¢Â¸ºß¤·¤Ê¤¤¥¹¥¿¥Ã¥¯¥Õ¥ì¡¼¥à¤ËÌá¤ë¤«¤é¤Ç¤¹¡£
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.Xr execve 2
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¤ò¼Â¹Ô¤Ç¤¤Ê¤¤¾ì¹ç¤Ï¡¢
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.Xr exit 3
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¤Ç¤Ï¤Ê¤¯¡¢
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.Xr _exit 2
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¤ò¸Æ¤Ó½Ð¤·¤Æ¤¯¤À¤µ¤¤¡£
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.Xr exit 3
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¤Ïɸ½àÆþ½ÐÎÏ¥Á¥ã¥Í¥ë¤ò¥Õ¥é¥Ã¥·¥å¤·¤ÆÊĤ¸¤ë¤¿¤á¡¢
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¿Æ¥×¥í¥»¥¹¤Îɸ½àÆþ½ÐÎϥǡ¼¥¿¹½Â¤ÂΤò²õ¤·¤Æ¤·¤Þ¤¤¤Þ¤¹¡£(
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.Xr fork 2
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¤Ç¤â¡¢¥Ð¥Ã¥Õ¥¡¤ËÆþ¤Ã¤Æ¤¤¤ë¥Ç¡¼¥¿¤¬ 2 ²ó¥Õ¥é¥Ã¥·¥å¤µ¤ì¤ë¤Î¤Ç¡¢
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.Xr exit 3
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¤ò¸Æ¤Ó½Ð¤µ¤Ê¤¤¤Ç¤¯¤À¤µ¤¤¡£)
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.Pp
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.Sh ´ØÏ¢¹àÌÜ
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.Xr _exit 2 ,
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.Xr execve 2 ,
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.Xr fork 2 ,
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.Xr rfork 2 ,
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.Xr sigvec 2 ,
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.Xr wait 2 ,
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.Xr exit 3
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.Sh Ìá¤êÃÍ
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.Xr fork 2
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¤ÈƱ¤¸¤Ç¤¹¡£
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.Sh ¥Ð¥°
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¤³¤Î¥·¥¹¥Æ¥à¸Æ¤Ó½Ð¤·¤Ï¡¢Å¬Àڤʥ·¥¹¥Æ¥à¶¦Í¥á¥«¥Ë¥º¥à
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¤¬¼Â¸½¤·¤¿¤È¤¤Ëºï½ü¤µ¤ì¤Þ¤¹¡£ºï½ü¤µ¤ì¤¿¾ì¹ç¤Ï¡¢
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.Xr fork 2
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¤ÈƱµÁ¤Ë¤Ê¤ë¤Î¤Ç¡¢
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.Xr vfork 2
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¤Î¥á¥â¥ê¶¦Í¤Î¸½¼ÂÁõ¤Ë¤Ï°Í¸¤·¤Ê¤¤¤Ç¤¯¤À¤µ¤¤¡£
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.Pp
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¥Ç¥Ã¥É¥í¥Ã¥¯¤òÈò¤±¤ë¤¿¤á¡¢
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.Fn vfork
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¤ÎÅÓÃæ¤Ç»Ò¤Ë¤Ê¤ë¥×¥í¥»¥¹¤Ë¤Ï¡¢
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.Dv SIGTTOU
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¥·¥°¥Ê¥ë¤ä
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.Dv SIGTTIN
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¥·¥°¥Ê¥ë¤¬Á÷¿®¤µ¤ì¤Þ¤»¤ó¡£¤½¤ÎÂå¤ï¤ê¤Ë½ÐÎÏ¡¢¤Þ¤¿¤Ï¡¢
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.Xr ioctl 2
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¸Æ¤Ó½Ð¤·¤¬µö²Ä¤µ¤ì¡¢EOF ¤Ë¤è¤Ã¤Æ½ªÃ¼¤ò¼¨¤µ¤ì¤¿·ë²Ì¤òÆþÎϤ·¤Þ¤¹¡£
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.Sh Îò»Ë
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.Fn vfork
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´Ø¿ô¸Æ¤Ó½Ð¤·¤Ï¡¢
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.Bx 3.0
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¤ÇÅо줷¤Þ¤·¤¿¡£
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