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Re: [Classpath] Re: Classpath future?


From: C. Scott Ananian
Subject: Re: [Classpath] Re: Classpath future?
Date: Thu, 12 Jul 2001 13:42:29 -0400 (EDT)

On Thu, 12 Jul 2001, Etienne M. Gagnon wrote:

> I really think that a separate "pure ANSI/ISO/POSIX C + JNI" (OK... only 
> as pure as possible...) native tree should be maintained in Classpath. 
> GCJ programmers could contribute to a separate CNI tree (under the 
> condition that both trees are kept relatively synchronized;-).

[De-lurking]  I'm the primary author of the MIT FLEX compiler
infrastructure (http://www.flexc.lcs.mit.edu/Harpoon), and I'll pipe in my
two cents and mention that pure-C-plus-JNI really is the way to go if you
want classpath adopted any- and every- where.  JNI really *was*
well-thought out with respect to gc-issues, and if you're doing *any*
sophisticated OO tricks in your compiler, you *need* the
implementation-independence which JNI gives you.  I've been trying to port
FLEX over to Classpath from our current "sun jdk1.1"-based runtime for
quite a while (never quite enough time); CNI independence is really a
necessity to allow such cross-pollination to occur.
 --s

spy supercomputer Echelon Washington Iraq radar explosion Japan Yeltsin 
ammunition Nader WTO World Trade Center DES Uzi assassination politics 
              ( http://lesser-magoo.lcs.mit.edu/~cananian )
 --
 "These students are going to have to find out what law and order is
 all about."  -- Brig. General Robert Canterbury, Noon, May 4, 1970,
 minutes before his troops shot 13 unarmed Kent State students, killing 4.
 --
            [http://www.cs.cmu.edu/~dst/DeCSS/Gallery/]
#!/usr/bin/perl -w
# 526-byte qrpff, Keith Winstein and Marc Horowitz <address@hidden>
# MPEG 2 PS VOB file on stdin -> descrambled output on stdout
# arguments: title key bytes in least to most-significant order
$_='while(read+STDIN,$_,2048){$a=29;$c=142;if((@a=unx"C*",$_)[20]&48){$h=5;
$_=unxb24,join"",@b=map{xB8,unxb8,chr($_^$a[--$h+84])address@hidden;s/...$/1$&/;$d=
unxV,xb25,$_;$b=73;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=($t=255)&($d
>>12^$d>>4^$d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*8^$q<<6))<<9
,$_=(map{$_%16or$t^=$c^=($m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;$t
^=(72,@z=(64,72,$a^=12*($_%16-2?0:$m&17)),$b^=$_%64?12:0,@z)[$_%8]}(16..271))
[$_]^(($h>>=8)+=$f+(~$g&$t))address@hidden"C*",@a}';s/x/pack+/g;eval




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