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Man Pages
ZONE(9) FreeBSD Kernel Developer's Manual ZONE(9)

uma_zcreate, uma_zalloc, uma_zfree, uma_zdestroy, uma_zone_set_max
?????󥢥???????

<sys/param.h> <sys/queue.h> <vm/uma.h> uma_zone_t uma_zcreate(char *name, int size, uma_ctor ctor, uma_dtor dtor, uma_init uminit, uma_fini fini, int align, u_int16_t flags); void * uma_zalloc(uma_zone_t zone, int flags) void uma_zfree(uma_zone_t zone, void *item) void uma_zdestroy(uma_zone_t zone) void uma_zone_set_max(uma_zone_t zone, int nitems)

?????󥢥?????????ưŪ???礭???????????????????????礭???ι??ܤν????? ???????뤿???θ?ΨŪ?ʥ??󥿥ե????????󶡤??ޤ??? ?????󥢥????????ϼ¹Ի??˳??????Ƥ??줿???????Ϥ????????? ͽ?????????Ƥ????Ƥ??륾???????Ф??Ƥ????Ѥ??뤳?Ȥ????衢?ޤ????Τ??ᡢ ¾?Υ??????????롼???????????֡??ȥץ??????Τ????ᤤ?ʳ??????Ѳ?ǽ?Ǥ???

???????Ͽ?ĥ???Τ???Ʊ?????礭???ι??ܤν????Ǥ??? ?????󥢥????????Ϥɤι??ܤ??????椫?????Ǥʤ??Τ??򸫼????ʤ??褦?ˤ??? ?????󤫤? ???ܤ????????Ƥ뤿???δؿ??????Ӳ????????᤹ (???Ǥλ??ѤΤ????˹??ܤ? ???Ѳ?ǽ?ˤ???) ?????δؿ????󶡤??ޤ???

??¤?Τ򥾡??󥢥????????Ǵ??????? ???????Ƥδ֤????????ߺѤߤΥե??????ɤ??Ĥ????Ȥˤ??? ?????????Ȥʤ륾???????????????Ѥ????????硢 ?????󥢥??????????????ǻ??Ѥ?????Ƭ 2 ?ĤΥݥ??󥿤? ???ι?¤?Τ?ͽ?󤷤Ƥ???ɬ?פ??????ޤ???

struct my_item {
        struct my_item  *z_rsvd1;
        struct my_item  *z_rsvd2;
        /* ??¤?ΤλĤ?????ʬ */
};

???????ʤ????硢?ơ??γ????Ƥθ??Ǥ??????Υ????ȥ꤬???줿?Ȥߤʤ??٤??Ǥ??? ???ܤκǽ??γ????Ƥθ??Ǥϡ?0 ?˥??ꥢ?????Ƥ??ޤ??? ????????????³???????ƤǤϡ? ?Ƕ????????줿???Τ????ƤȤ??ƻĤäƤ????Ǥ??礦???? ???ҤΥե??????ɤ??㳰?Ǥ???

uma_zcreate() ?ؿ??ϡ????줫?????ܤ??????Ƥ????뤳?Ȥ???ǽ?ʿ????????????????????ޤ??? name ?????ϥǥХå??????ӥ??ơ??????Τ????Υƥ????ȤΥ?????̾?Ǥ??? ???Υ??????ϡ????????γ????Ƥ????????????ޤǤϡ????????????٤??ǤϤ????ޤ?????

???? ctor ?? dtor ?ϡ????줾?? uma_zalloc() ?? uma_zfree() ?θƤӽФ????? uma ???֥????ƥफ???ƤФ??롢???????Хå??ؿ??Ǥ??? ??????????Ū?ϡ??񸻤γ??????ƻ??Ȳ???????ɬ?פȤʤ롢 ?????????????˲??Τ????Υեå????󶡤??뤳?ȤǤ??? ctor ?????? dtor ?Υ??????Хå????ɤ??Ȥ????Ȥ??Ƥϡ? ???????Ƥ??줿???֥??????ȤΥ??????Х륫?????Ȥ?Ĵ?????????Ǥ??礦??

???? uminit ?? fini ?ϡ??????󤫤??Υ??֥??????ȳ??????Ƥκ?Ŭ???˻??Ѥ????ޤ??? ???????ϡ??׵??¸??ޤ??ϥ????갵??????ͳ?ˤ??ꡢ uma ???֥????ƥबʣ???ι??ܤ????????Ƥޤ??ϲ???????ɬ?פ??????Ȥ??ˡ? ?ƤӽФ????ޤ??? uminit ?????? fini ?Υ??????Хå????ɤ??Ȥ????Ȥ??Ƥϡ? ???֥??????Ȥ˴ޤޤ????ߥ塼?ƥå????ν????????˲????????Ǥ??礦?? ?????ˤ??ꡢ???֥??????Ȥ? uma ???֥????ƥ??Υ??֥??????Ȥ????֤??줿?Ȥ??ˡ? ???˽??????ѤߤΥߥ塼?ƥå??????ƻ??Ѳ?ǽ?Ȥʤ??ޤ??? ???????ϡ??? uma_zalloc() ?? uma_zfree() ?θƤӽФ????ˤϸƤӽФ??줺?? ʣ???Υ??֥??????Ȥ??Ф??ƥХå?Ū?˸ƤӽФ????ޤ???

???ܤϤ??Υ??????ؤΥݥ??󥿤?ȼ?ʤ? uma_zalloc() ?θƽФ??ˤ??äƳ????Ƥ??졢 flags ?????? malloc(9) ?Ȥ???ʸ?񲽤??줿???򤵤줿?ե饰?????ꤵ???ޤ??? ???ι??ܤϤ??Υ??????˲??????ᤵ???ޤ??? ?????ξ????ˤϹ??ܤؤΥݥ??󥿤??֤??ޤ??? ???????????????ܤ????????dz??ĥ?????????????????????ĥ?Ǥ??ʤ????ʾ??礫?? M_NOWAIT ???????????Ƥ??????硢 NULL ???֤??ޤ???

???ܤϤ??Υ??????ؤΥݥ??󥿤????Ӥ??ι??ܤؤΥݥ??󥿤?ȼ?ʤä? uma_zfree() ?θƤӽФ??ˤ??äơ??????Ƥ????Ƥ??????????˲??????ᤵ???ޤ???

???Ǥ??????????줿???????ϡ? uma_zdestroy() ?????Ѥ??ơ????Υ??????Τ????˳????Ƥ??줿???ƤΥ??????????????ơ? ?˲??????뤳?Ȥ???ǽ?Ǥ??? ???Υ????󤫤? uma_zalloc() ?ˤ??äƳ????Ƥ??줿???ܤϡ????????? uma_zfree() ?ˤ??äƲ????????ʤ????Фʤ??ޤ?????

uma_zone_set_max() ????Ū?ϡ? zone ?????ˤ??äƻ??ꤵ?줿?????????Ф??????ѤˤǤ??????????κ????̤? ???¤??뤳?ȤǤ??? nitems ?????ˤϤ??Υ????????ι??ܤξ??¤?Ϳ???ޤ??? ???????¤ϡ????????Ƥ??줿???ܡ????????줿???ܡ??????? CPU ???? ?????å??????ˤ??볫?????줿???ܤ??ޤࡢ???Υ??????????ι??ܤΥȡ????????Ǥ??? ʣ???? CPU ?????ĥ????ƥ????Ǥϡ???????????­???ʤ????ˤǤ????? ???ꤵ?줿???ι??ܤ????????Ƥ뤳?Ȥ??Բ?ǽ?Ǥ??뤳?Ȥ??????ޤ??? ?ʤ??ʤ??С????¤˰??ä??????????ǡ??Ĥ??????Ƥγ????????Ƥ??????ܤ??? ¾?? CPU ?Υ????å????????ˤ??뤫?⤷???ʤ??????Ǥ???

uma_zalloc() ?ؿ??Ϲ??ܤؤΥݥ??󥿤򡢤ޤ??ϥ???????̤???ѹ??ܤ???­???ƥ??????????? ??????????ĥ?Ǥ??ʤ??????? NULL ?????֤??ޤ???

malloc(9)

?????󥢥????????? FreeBSD 3.0 ?ǤϤ??????о줷?ޤ????? ?????֥??????????Ȥ??Ƥε?ǽ?Τ??ᡢ FreeBSD 5.0 ?Ǻ???Ū???ѹ??????ޤ?????

?????󥢥????????? John S. Dyson ???񤭤ޤ????? ?????󥢥????????ϡ??????֥??????????Ȥ??Ƥε?ǽ?Τ??ᡢ Jeff Roberson ⟨jeff@FreeBSD.org⟩ ??????ʬ??????ľ???ޤ?????

???Υޥ˥奢???ڡ????? Dag-Erling Smørgrav ⟨des@FreeBSD.org⟩ ???񤭤ޤ????? UMA ?Τ????? Jeroen Ruigrok van der Werven ⟨asmodai@FreeBSD.org⟩ ???ѹ????ޤ?????

July 21, 2003 FreeBSD 13.1-RELEASE

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