/usr/share/perl5/ResultIterator.pm is in percona-toolkit 3.0.6+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 | # This program is copyright 2013 Percona Ireland Ltd.
# Feedback and improvements are welcome.
#
# THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
# MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
# systems, you can issue `man perlgpl' or `man perlartistic' to read these
# licenses.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place, Suite 330, Boston, MA 02111-1307 USA.
# ###########################################################################
# ResultIterator package
# ###########################################################################
{
package ResultIterator;
use strict;
use warnings FATAL => 'all';
use English qw(-no_match_vars);
use constant PTDEBUG => $ENV{PTDEBUG} || 0;
use Data::Dumper;
use Lmo;
has 'dir' => (
is => 'ro',
isa => 'Str',
required => 1,
);
has 'progress' => (
is => 'ro',
isa => 'Maybe[Str]',
required => 0,
default => sub { return },
);
has '_progress' => (
is => 'rw',
isa => 'Maybe[Object]',
required => 0,
default => sub { return },
);
has '_query_fh' => (
is => 'rw',
isa => 'Maybe[FileHandle]',
required => 0,
);
has '_results_fh' => (
is => 'rw',
isa => 'Maybe[FileHandle]',
required => 0,
);
has '_rows_fh' => (
is => 'rw',
isa => 'Maybe[FileHandle]',
required => 0,
);
sub BUILDARGS {
my $class = shift;
my $args = $class->SUPER::BUILDARGS(@_);
my $dir = $args->{dir};
die "$dir does not exist\n" unless -d $dir;
my $query_file = "$dir/query";
PTDEBUG && _d('Query file:', $query_file);
open my $_query_fh, '<', $query_file
or die "Cannot open $query_file for writing: $OS_ERROR";
my $results_file = "$dir/results";
PTDEBUG && _d('Meta file:', $results_file);
open my $_results_fh, '<', $results_file
or die "Cannot open $results_file for writing: $OS_ERROR";
my $rows_file = "$dir/rows";
PTDEBUG && _d('Results file:', $rows_file);
open my $_rows_fh, '<', $rows_file
or die "Cannot open $rows_file for writing: $OS_ERROR";
my $_progress;
if ( my $spec = $args->{progress} ) {
$_progress = new Progress(
jobsize => -s $query_file,
spec => $spec,
name => $query_file,
);
}
my $self = {
%$args,
_query_fh => $_query_fh,
_results_fh => $_results_fh,
_rows_fh => $_rows_fh,
_progress => $_progress,
};
return $self;
}
sub next {
my ($self, %args) = @_;
local $INPUT_RECORD_SEPARATOR = "\n##\n";
my $_query_fh = $self->_query_fh;
my $_results_fh = $self->_results_fh;
my $_rows_fh = $self->_rows_fh;
my $query = <$_query_fh>;
my $results = <$_results_fh>;
my $rows = <$_rows_fh>;
if ( !$query ) {
PTDEBUG && _d('No more results');
return;
}
chomp($query);
if ( $results ) {
chomp($results);
eval $results;
}
if ( $rows ) {
chomp($rows);
eval $rows;
}
$query =~ s/^use ([^;]+);\n//;
my $db = $1;
if ( $db ) {
$db =~ s/^`//;
$db =~ s/`$//;
$results->{db} = $db;
}
$results->{query} = $query;
$results->{rows} = $rows;
if ( my $pr = $self->_progress ) {
$pr->update(sub { tell $_query_fh });
}
PTDEBUG && _d('Results:', Dumper($results));
return $results;
}
sub _d {
my ($package, undef, $line) = caller 0;
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
map { defined $_ ? $_ : 'undef' }
@_;
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
}
no Lmo;
1;
}
# ###########################################################################
# End ResultIterator package
# ###########################################################################
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