(written in euc-jp-unix) -*-text-*-
$Id: TODO,v 1.17 2001/09/04 08:21:35 2ch Exp $

פĤȤߤ
Ӥ餷(
եޥåȤǤա

				- * -

dattime_tʤΤǡǽȤtime_t(⤷long)Ѵ
ƻäƤ⤤󤸤ʤ? 2038ǯ˺Ƥ롣
2ch9ĶƻĤΤ?
(6411)


imodeбϡϳỤֵ̄ˤʤäƤǡɤʤ潦ꤤ
Ǥ
(6411)


ĥȤˤϡإåɥ饤κɬפʡĤɤ˺ƥ
Ȥλ͡Ƥʤ顣տŪbbs.cgi(Ȼפ)λȤ
򤱤Ƥ뤫
(6411)
ե롦եΤ꤫狼äǤ⡢
̵̤ˤʤǽ뤫顢ޥ¤
(6411)


⤦ߤΤäƤȤϻפɡ
M-x c-set-style linux
Υ뤬ԤΥˤФäƤ
⤦ʤߤϳΥǥեȤ gnu (ݵ
(6411)
¤ϼʬΥä... linuxˤʤȤ
  (c-set-style "k&r") (setq c-basic-offset 8) Ƥ褷
  (| --))

				- * -

USE_INDEX 

ޤܡбƤʤ

¾椬ǥޥȥưɤϸڤƤʤ

ޤʬʹԥǥƤʤ뤳Ȥ񤷤ʤ

(6411)


mmap(2)

ܳŪmmap(2) basedʥɽ񤯤ΤƤϳ졣ŤȤ񤯤
äƤޤɸC饤֥ꤷȤäƤʤäΡ

(6411)

	* MAP_PRIVATEΤȤϡlengthǳݤΰѲǽ
	  ֤󡢸ΥեĹĶʬ0ΤϤ

	* MAP_SHAREDΤȤlength 0ΥեФƤϡmmap()
	  롣եå0 Υsegmentation fault
	  
	  ɤ߹ѤmapƤʤ顢ե륵ʬĶƤ
	  ϾˤޤǤʤ? length=0ʤƬХȤ
	  Ĺ1ʤȤꤨʤ
	  ʤۤɡ֥Ǥʤɥ쥹֤פäƤΤϤ
	  ľ롢Ȳ᤹Τ͡ʤߤĹ1Υե
	  ФƤϡ1ڡʬɤ߽񤭤Ǥ褦1Ķ
	  ΰؤν񤭹ߤϼΤƤ뤱ɡ(6411)
	  ϤĤޤꡢڡñ̤ǳƤƤΤ
	  ԹǤäơΥǼǤǾΥڡ
	  ƤǤ礦ڡ٤ñ̤Ǥϡޤ
	  page faultȯʤȤǡ

	* MAP_SHAREDΤȤlength礭ͤꤷƤ⡢ڡ
	  (x86Ǥ4096Х)äޥåԥ󥰤졢Ķ
	  segmentation fault롣

	* munmap(2)ʤƤ⡢close(2)ʤƤץλ
	  ޤǤ˥˽񤤤ƤϥեȿǤ롣

	* munmap(2)ʤclose(2)Ǥ⡢ޥåΰͭΤ
	  ŪǤϡmmap(2)ΤȤ˻ȤƤ?
	  FreeBSDmanȤ¤Ǥϡclose(2)Ƥunmapʤ
	  Ƥä

	* MAP_PRIVATEϡ¨¤commit櫓ǤϤʤ餷ڡ
	  ˽񤭹ߤʤ¤ꡢͭ᡼ƤޤΤǡ
	  Ƥ֤ïե򤤤äƤޤä顢äݵ
	  

				- * -

ʬLast-ModifiedˤĤơ

ߡLast-Modified(ʹL-M)ϡ.datƤ뤬chunk
븽ˤʤȹͤ롣ǤϡեʥƤ
L-MΤ񤷤ʤΤǡĤɤ褦

(6411)

				- * -

ĥȤLast-ModifiedˤĤơ

ߤμǤϡ/board/subject.txt mtime֤Ƥ뤬subject.txt 
sageʹԤλϹʤȻפΤǡnĥsageʹԤ
ƤȤΤʤʤǽϤ롣

| ץ(פ˺ȤäƤbbs.cgi)Ǥϡ 
| sage쥹ɬ쥹˥ȤΤǡ 
| ¤ؤϵʤΤΡsubject.txtιϹԤƤȻפ
| 
Ȥ쥳ߤä

褢̤٤ưϡǿ10mtimeΤǿΤΤ֤
٤Ǥ롣

(6411)

				- * -

ڥͥ񸻡ץ񸻤θ˴ؤơ

äȹԵɡХҡפϤfree()ȡΨ
Ȼפ÷Ǥ󥵡ӥǤʤCGIϡ񸻤γϤߡ
ͥǤƤޤäƤ⤤ǤϤʤ? ϳŪˤϻפʤߤ
ץλmalloc()֤free()Ƥ櫓ǤϤʤbrk
ʬΤץȼΤƤƤϥ

munmap(2)ϡPTE(MMUΥڡơ֥)βȼᡢTLB(MMUΥڡ
å)եå夵롣ץ¹ˤԤΤϡSMP
ƥξϷ褷ƷڤǤϤʤLinux-2.2ȡSMPϼǧ
Ƥ롣ʤΤǡmmap(2)ΰä餫ˤƤΤ

XXX ܤΤʤɡclose(2)ϡmunmap()˹Ԥ
ǤϤʤ? Ȥ顢read openfd֤ȤŪ
˥٥⤷̡ɤʤͤùߵࡣ
ʤȤFreeBSDǤϡclose(2)Ƥmunmap(2)ʤ(6411)

Ȥϻפ®䤫˽򽪤٤CGIȳڤäơ
٤ѶŪ˸򥵥ܤꤿɤ? äϤä
progĤ˥ΩäƤ褦ʵ⤷ꡣ

(6411)

				- * -

/*
 *  ɡǤ⤤ǤC桢
 *  read2ch.hEUCǤ(
 *  diffȤˤäᤷȤƤޤ
 *  ɤ衣ĿŪˤEUCˤǤʤ
 *  ȤǤϤ롣(6411)
 */

Ϣ

6411 mailto:webmaster@psychedance.com
