From: Tanaka Akira <akr@...17n.org>
Date: 2002-01-29T01:46:49+09:00
Subject: [ruby-list:33599] major, minor (Re:  Re: broken symbolic link and File::mtime)

In article <200201281639.g0SGdRH29664@edge.sky.yamashina.kyoto.jp>,
  Takahiro Kambe <taca@sky.yamashina.kyoto.jp> writes:

> > $B?@8M$5$s$N;XE&$NDL$j%7%9%F%`0MB8$G$O$"$j$^$9!#$=$7$F!"(BLinux $B$N(B dev_t
> > $B$,(B 64bit $B$@$H$$$&$N$O3N$+$K$=$&$_$?$$$G$9$,!"(Bmajor/minor $B$NDj5A$K$h$j(B
> > 8+8bit$B$7$+07$($J$$$h$&$K$J$C$F$$$k$h$&$G$9!#(B
> $BIT;W5D$J<BAu$G$9$M!#(B

$B$($'!"$J$s$H$bIT;W5D$G$9!#(B
# g$B?7It$5$s$KJ9$$$F$_$k$+(B...

> > SunOS 5.8 $B$O(B 7+8,
> $B$"$H(B1$B%S%C%H$O$I$3$X(B?  SunOS 4.X$B$+$i8:$C$F$k$N$b0J30!#(B

#define O_BITSMAJOR     7       /* # of SVR3 major device bits */
#define O_BITSMINOR     8       /* # of SVR3 minor device bits */
#define O_MAXMAJ        0x7f    /* SVR3 max major value */
#define O_MAXMIN        0xff    /* SVR3 max major value */
#define major(x)        (major_t)((((unsigned)(x)) >> O_BITSMINOR) & O_MAXMAJ)
#define minor(x)        (minor_t)((x) & O_MAXMIN)

$B$H$f!<$3$H$G(B SVR3 $B$N1F6A$i$7$$$G$9!#(B
-- 
[$BEDCf(B $BE/(B][$B$?$J$+(B $B$"$-$i(B][Tanaka Akira]
$B!V$U$($m(B! $B$o$+$a$A$c$s:n@o$G$9$(C"=$B!W(B(Little Worker, $B7KM7@84](B)