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From: daichi <daichi@jp.FreeBSD.org>
To: java@jp.FreeBSD.org
Cc: saka@ulis.ac.jp
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Date: Thu, 10 Apr 2003 23:11:18 +0900
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Subject: [java 342] Re: RandomAccessFile =?ISO-2022-JP?B?GyRCJEgbKEI=?=
 ftruncate
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$BBgCO$G$9!#(B

> $B:e8}$H?=$7$^$9!#(B
> 
> $B0lGU%U%)%m!<$,Mh$k$H;W$$$^$9$,!"!#(B
(snip)
> $BEAE}E*(B UNIX $B$+$iM3Mh$NF0:n$@$H;W$$$^$9!#(B
> 
> >$BD4$Y$k$Y$-;qNA$J$I$"$j$^$7$?$i65$($F$/$@$5$$$^$;!#(B
> 
> lseek(2) $B$K=q$+$l$F$$$k!V(Bgap$B!W$H$$$&$N$,$=$l$N$O$:$G$9!#(B

$B$J$k$[$I$J$k$[$I!#(B
$B$4;XE&$"$j$,$H$&$4$6$$$^$9!#(B

> seek $B$7$F3HD%$5$l$?>l9g$O<B:]$K%G%#%9%/>e$K$O3d$jEv$F$i$l$F$$$J$$$1$I!"(B
> $BFI$_=P$9$H(B 0 $B$K$J$k%V%m%C%/$,$"$k$h$&$K8+$($^$9!#(B
> ftruncate(2) $B$NJ8>O$b$=$N$h$&$J$3$H$r$[$N$a$+$9$h$&$J$b$N$K$J$C$F$$$^$9$M!#(B
> $B!J%+!<%M%k$N%=!<%9$^$G%A%'%C%/$7$?$o$1$G$O$"$j$^$;$s$,!#!K(B
> 
> --
> $B:e8}E/CK!w?^=q4[>pJs3X7O!%C^GHBg3X!J?^=q4[>pJsBg3X!K(B
> Tetsuo SAKAGUCHI.
> Institute of Library and Information Science, University of Tsukuba, JAPAN.
> (University of Library and Information Science, JAPAN.)

seek$B$G<B:]$N%5%$%:0J>e$N3NJ]$r$7$?$H$-$NF0:n$O!"$3$l$^$G2?EY$+(B
$B=q@R$GFI$s$@$3$H$,$"$C$?$N$G$J$s$H$J$/M=B,$O$"$C$?$s$G$9$1$I$b!"(B

$B6C$$$?$N$O$3$l"-$J$s$G$9$h$M!#(B

  > hd testfile 
  00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
  *
  06400000  01 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
  06400010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
  *
  40000000
  > du testfile
  80      testfile
  > 

$B<B:]$K%G!<%?$,=q$-9~$^$l$F$$$kItJ,$N:G8e$NNN0h!v0J9_$@$1!v$,(B
$B!V(B0$B!W$GKd$a$i$l$?$h$&$K8+$($k$s$@$H;W$C$F$?$s$G$9$h!#$?$H$($P(B
$B$3$N",>l9g$@$H(B

  > du testfile
  1024    testfile
  > 

$B$K$J$k$3$H$rM=A[$7$F$$$?$N$G$9$h$M!#(B
$B$=$l$,!"<B:]$K=q$-9~$^$l$F$$$k%V%m%C%/$H$=$&$G$J$$%V%m%C%/$r(B
$B$A$c$s$H<1JL$7$F$k$_$?$$!#(B

# $B%V%m%C%/C10L$G$3$&$7$?%U%i%0$r;}$C$F$$$?$j$9$k$N$+$J!#(B

--
  Daichi GOTO, daichi@jp.FreeBSD.org
