̾??

getvfsent, setvfsent, endvfsent, vfsisloadable, vfsload —

???ۥե????륷???ƥ??⥸?塼????????

?饤?֥???

Standard C Library (libc, -lc)

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<sys/param.h> <sys/mount.h> struct ovfsconf * getvfsent(void) void setvfsent(int cachelist) void endvfsent(void) int vfsisloadable(const char *name) int vfsload(const char *name)

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getvfsent() ?ؿ??ˤ??äơ??????ͥ뤬???????륤?󥹥ȡ????Ѥβ??ۥե????륷???ƥ??⥸?塼?? ?Υꥹ?Ȥˡ???ñ?˥????????Ǥ??ޤ????ꥹ?ȤΥե????륷???ƥ??? 1 ???? 1 ?ĤŤ??ʳ?Ū?˽??????ޤ??????ѤǤ????ǡ??????????ʾ??ʤ??ʤ??ȡ? ?̥? ?ݥ??󥿤??֤??ޤ?????¤?? “struct ovfsconf” ?Υե??????ɤϼ??ΤȤ????Ǥ???

vfc_name: ?ե????륷???ƥ???̾????
vfc_index: ?????ͥ??ˤ??äƳ??????Ƥ??? mount(2) ?θƤӽФ??˻??Ѥ??줿???ե????륷???ƥ??Υ??????ֹ档
vfc_refcount: ???Υե????륷???ƥ??λ??ȿ? (?̾??ϥޥ????ȿ??Ǥ????? ?????????ɤǤ??ʤ????????ͥ?????Ū?˥??󥯤????Ƥ??? ?ե????륷???ƥ??Ǥϡ??ޥ????ȿ??? 1 ???ä??????Τˤʤ??ޤ?)??
vfc_flags: ?ե饰?ӥåȡ?

?ե饰?ϼ??Τ褦???????????Ƥ??ޤ?:

VFCF_STATIC: ?????ͥ?????Ū???Ȥ߹??ޤ??Ƥ???
VFCF_NETWORK: ?ǡ??????ͥåȥ????ͳ?Ǽ?????????
VFCF_READONLY: ?񤭹??ߤ?̤????
VFCF_SYNTHETIC: ?ǡ????ϼ¥ե???????ɽ?????ʤ?
VFCF_LOOPBACK: ?ޥ????ȺѤߤΥե????륷???ƥ????Ф?????̾
VFCF_UNICODE: ?ե?????̾?? Unicode ?ǳ?Ǽ

setvfsent() ?????? endvfsent() ?ؿ??ϡ? sysctl(3) ?ˤ??äƥ????ͥ? ?????ޤȤ??Ƽ??????????ե????륷???ƥ??ꥹ?ȤΡ??????å??????????? ???Ѥ????ޤ??? setvfsent() ?? cachelist ?ѥ??᡼???? 0 ?Ǥʤ????С??????? ?????ؿ??Τɤ줫???ǽ??˸ƤӽФ????????ǥꥹ?ȤϤ??? 1 ???????????Ф??졢 ?????å????򥯥ꥢ???뤿???? endvfsent() ???ƤӽФ??????ޤ??ݻ??????ޤ??? ???̤? setvfsent(1) ?ϡ? getvfsent() ?????Ѥ????ץ????????ˤ??äƸƤӽФ?????ɬ?פ????ꡢ setvfsent(0) ?? (???????ǥե????Ȥξ??֤?)?? vfsload() ?ؿ??????Ѥ????ץ????????ˤ??äƸƤӽФ?????ɬ?פ??????ޤ???

vfsisloadable() ?ؿ??ϡ????? vfsload(name) ?θƤӽФ???³???????????? 0 ?ͤ??֤??ޤ????????? “????” ?ȸ????Τϡ? vfsisloadable() ?? vfsload() ?????????뤿???ξ??????????å????ʤ??????Ǥ???

vfsload() ?ؿ??ϡ??ե????륷???ƥ? name ?μ????????ͥ??⥸?塼?????????? ???褦?Ȼ??ߤޤ????ե????륷???ƥ??⥸?塼????̵?????ͤ??ߤ??ƥ????ɤ??? ?????? 0 ????????¾?ξ??????? 0 ???֤??ޤ??????δؿ????ƤӽФ????Τϼ??? ?????????????Ǥ???

getvfsbyname() ???ƤӽФ????? 0 ?ͤ??֤ä????硣
vfsisloadable() ???ƤӽФ????? 0 ?ͤ??֤ä????硣

mount_cd9660(8) ?Υ????????????ä????????򼡤˼????ޤ???

struct vfsconf *vfc;
int error;

/* ?????˥??åȥ??åץ????ɤ????? */

error = getvfsbyname("cd9660", &vfc);
if (error && vfsisloadable("cd9660")) {
	if (vfsload("cd9660"))
		err(EX_OSERR, "vfsload(cd9660)");
	endvfsent();	/* flush cache */
	error = getvfsbyname("cd9660", &vfc);
}
if (error)
	errx(1, "cd9660 filesystem is not available");

if (mount(vfc.vfc_name, dir, mntflags, &args) < 0)
	err(1, NULL);

??????

getvfsent() ?롼?????ϡ?????????????Ū?ǡ?????¤?ΤΥݥ??󥿤򡢼??Ԥ????? ?̥? ?ݥ??󥿤??֤??ޤ????????? sysctl(3) ?ޤ??? malloc(3) ?Ǽ??Ԥ????????ϡ? errno ?????????ؿ??Ѥ˥ɥ????????Ȥ??줿?ͤ? 1 ?Ĥ? ???ꤵ???뤳?Ȥ??????ޤ???????¾?ξ??? errno ?ϲ??Ѥ????ޤ?????

vfsload() ?ؿ??ϼ??Ԥ??????? 0 ?ͤ????????????? 0 ???֤??ޤ??? vfsload() ?????Ԥ??????硢 kldload(2) ?Ѥ˵??Ҥ??줿 errno ?ͤ????ꤵ?????ޤ???

??Ϣ????

kldload(2), mount(2), mount(8)

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???Υ????ɲ?ǽ?ե????륷???ƥॵ?ݡ??Ȥϡ? Terry Lambert ?ˤ??????ѤΥ????ɲ?ǽ?????ͥ??⥸?塼?륵?ݡ??Ȥ??١????ˡ? Garrett A. Wollman ?ˤ??äƽ񤫤??ޤ?????

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getvfsent() ?ؿ??ե??ߥ??? FreeBSD 2.0 ?ǤϤ??????о줷?ޤ?????