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|
#! /usr/bin/perl -w
use strict;
# librsync -- the library for network deltas
# $Id$
#
# Copyright (C) 2000, 2001 by Martin Pool <mbp@sourcefrog.net>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation; either version 2.1 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
# I think if you've ordered
# somebody to do something you
# should probably resist the urge
# to thank them.
# -- http://abc.net.au/thegames/
$#ARGV == 1 or die "Usage: mkprototab.pl TABLE HEADER";
open(TABLE, ">$ARGV[0]") or die "Can't open table $ARGV[0]: $!";
open(HEADER, ">$ARGV[1]") or die "Can't open header $ARGV[1]: $!";
my $cmd_byte = 0;
sub emit_cmd {
my ($kind, $lit_val, $len1, $len2) = @_;
my $op;
if ($cmd_byte) {
# not first
print TABLE ",\n";
print HEADER ",\n";
}
if ($len2) {
$op = sprintf "RS_OP_%s_N%d_N%d", $kind, $len1, $len2;
} elsif ($len1) {
$op = sprintf "RS_OP_%s_N%d", $kind, $len1;
} elsif ($lit_val) {
$op = sprintf "RS_OP_%s_%d", $kind, $lit_val;
} else {
$op = sprintf "RS_OP_%s", $kind;
}
push(@_, 0) while @_ < 4; # Avoid run-time warnings.
printf TABLE " {RS_KIND_%-10s, %3d, %d, %d } ", @_;
printf TABLE " /* %20s = %#4x */", $op, $cmd_byte;
printf HEADER " %20s = %#4x", $op, $cmd_byte;
$cmd_byte++;
}
print TABLE <<EOT;
/* AUTOGENERATED BY $0, DO NOT EDIT */
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
#include "librsync.h"
#include <protocol.h>
#include <command.h>
#include <prototab.h>
/* This file defines an array mapping command IDs to the operation kind,
* implied literal value, and length of the first and second parameters.
* The implied value is only used
* if the first parameter length is zero. */
const struct rs_prototab_ent rs_prototab[] = {
EOT
print HEADER <<EOT;
/* AUTOGENERATED BY $0, DO NOT EDIT */
typedef struct rs_prototab_ent {
enum rs_op_kind kind;
int immediate;
size_t len_1, len_2;
} rs_prototab_ent_t;
extern const rs_prototab_ent_t rs_prototab[];
enum {
EOT
emit_cmd('END');
my @int_lens = (1, 2, 4, 8);
my ($i, $j);
for ($i = 1; $i <= 64; $i++) {
emit_cmd('LITERAL', $i);
}
foreach $i (@int_lens) {
emit_cmd('LITERAL', 0, $i);
}
foreach $i (@int_lens) {
foreach $j (@int_lens) {
emit_cmd('COPY', 0, $i, $j);
}
}
emit_cmd('RESERVED', $cmd_byte, 0, 0) while $cmd_byte <= 255;
print TABLE <<EOT;
};
/* END OF AUTOGENERATED CODE */
EOT
print HEADER <<EOT;
};
/* END OF AUTOGENERATED CODE */
EOT
|
