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# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package ModPerl::MapUtil;
use strict;
use warnings;
use Exporter ();
use Apache2::Build ();
our @EXPORT_OK = qw(list_first disabled_reason
function_table structure_table
xs_glue_dirs);
our @ISA = qw(Exporter);
# the mapping happens in lib/ModPerl/StructureMap.pm: sub parse
# '<' => 'auto-generated but gives only a read-only access'
# '&' => 'RDWR accessor to a char* field, supporting undef arg'
# '$' => 'RONLY accessor, with WRITE accessor before child_init'
# '%' => like $, but makes sure that for the write accessor the
# original perl scalar can change or go away w/o affecting
# the object
my %disabled_map = (
'!' => 'disabled or not yet implemented',
'~' => 'implemented but not auto-generated',
'-' => 'likely never be available to Perl',
'>' => '"private" to apache',
'?' => 'unclassified',
);
my $function_table = [];
sub function_table {
return $function_table if @$function_table;
push @INC, "xs/tables/current";
require Apache2::FunctionTable;
require ModPerl::FunctionTable;
require APR::FunctionTable;
@$function_table = (@$Apache2::FunctionTable, @$ModPerl::FunctionTable,
@$APR::FunctionTable);
$function_table;
}
my $structure_table = [];
sub structure_table {
return $structure_table if @$structure_table;
require Apache2::StructureTable;
@$structure_table = (@$Apache2::StructureTable);
$structure_table;
}
sub disabled_reason {
$disabled_map{+shift} || 'unknown';
}
sub xs_glue_dirs {
Apache2::Build->build_config->mp_xs_glue_dir;
}
sub list_first (&@) {
my $code = shift;
for (@_) {
return $_ if $code->();
}
undef;
}
package ModPerl::MapBase;
*function_table = \&ModPerl::MapUtil::function_table;
*structure_table = \&ModPerl::MapUtil::structure_table;
sub readline {
my $fh = shift;
while (<$fh>) {
chomp;
s/^\s+//; s/\s+$//;
s/^\#.*//;
s/\s*\#.*//;
next unless $_;
if (s:\\$::) {
my $cur = $_;
$_ = $cur . $fh->readline;
return $_;
}
return $_;
}
}
our $MapDir;
my $map_classes = join '|', qw(type structure function);
sub map_files {
my $self = shift;
my $package = ref($self) || $self;
my ($wanted) = $package =~ /($map_classes)/io;
my (@dirs) = (($MapDir || './xs'), ModPerl::MapUtil::xs_glue_dirs());
my @files;
for my $dir (map { -d "$_/maps" ? "$_/maps" : $_ } @dirs) {
opendir my $dh, $dir or warn "opendir $dir: $!";
for (readdir $dh) {
next unless /\.map$/;
my $file = "$dir/$_";
if ($wanted) {
next unless $file =~ /$wanted/i;
}
#print "$package => $file\n";
push @files, $file;
}
closedir $dh;
}
return @files;
}
sub parse_keywords {
my ($self, $line) = @_;
my %words;
for my $pair (split /\s+/, $line) {
my ($key, $val) = split /=/, $pair;
unless ($key and $val) {
die "parse error ($ModPerl::MapUtil::MapFile line $.)";
}
$words{$key} = $val;
}
%words;
}
sub parse_map_files {
my ($self) = @_;
my $map = {};
for my $file (map_files($self)) {
open my $fh, $file or die "open $file: $!";
local $ModPerl::MapUtil::MapFile = $file;
bless $fh, __PACKAGE__;
$self->parse($fh, $map);
close $fh;
}
return $map;
}
1;
__END__
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