1 files changed, 189 insertions, 0 deletions
diff --git a/lib/ManaTools/Shared/disk_backend/IOs.pm b/lib/ManaTools/Shared/disk_backend/IOs.pm
new file mode 100644
index 00000000..5a6dfd30
--- /dev/null
+++ b/lib/ManaTools/Shared/disk_backend/IOs.pm
@@ -0,0 +1,189 @@
+# vim: set et ts=4 sw=4:
+package ManaTools::Shared::disk_backend::IOs;
+
+#============================================================= -*-perl-*-
+
+=head1 NAME
+
+    ManaTools::Shared::disk_backend::IOs - list of IOs
+
+=head1 SYNOPSIS
+
+    use ManaTools::Shared::disk_backend::IOs;
+
+    my $db_man = ManaTools::Shared::disk_backend::IOs->new(parent => $self, restriction => $restriction);
+    $db_man->append($io);
+    $db_man->remove($io);
+    $db_man->list();
+    $db_man->length();
+
+
+=head1 DESCRIPTION
+
+    This plugin is an collection of IOs in the backend to manadisk
+
+=head1 SUPPORT
+
+    You can find documentation for this plugin with the perldoc command:
+
+    perldoc ManaTools::Shared::disk_backend::IOs
+
+
+=head1 AUTHOR
+
+    Maarten Vanraes <alien@rmail.be>
+
+=head1 COPYRIGHT and LICENSE
+
+Copyright (c) 2015 Maarten Vanraes <alien@rmail.be>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License version 2, as
+published by the Free Software Foundation.
+
+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 General Public License for more details.
+
+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.
+
+=head1 METHODS
+
+=cut
+
+use Moose;
+
+has 'parent' => (
+    is => 'ro',
+    isa => 'ManaTools::Shared::disk_backend::Part',
+    required => 1
+);
+has 'restriction' => (
+    traits => ['Code'],
+    is => 'ro',
+    isa => 'CodeRef',
+    required => 1,
+    handles => {
+        check => 'execute'
+    }
+);
+has 'ios' => (
+    is => 'ro',
+    isa => 'HashRef[ManaTools::Shared::disk_backend::IO]',
+    default => sub {return {};}
+);
+
+#=============================================================
+
+=head2 length
+
+=head3 OUTPUT
+
+    Int
+
+=head3 DESCRIPTION
+
+    this method returns the number of IOs
+
+=cut
+
+#=============================================================
+sub length {
+    my $self = shift;
+
+    return scalar(keys %{$self->ios});
+}
+
+#=============================================================
+
+=head2 list
+
+=head3 OUTPUT
+
+    array of the IOs
+
+=head3 DESCRIPTION
+
+    this method returns a list of IOs
+
+=cut
+
+#=============================================================
+sub list {
+    my $self = shift;
+
+    return values %{$self->ios};
+}
+
+#=============================================================
+
+=head2 append
+
+=head3 INPUT
+
+    $io: IO to add
+
+=head3 OUTPUT
+
+    1 if success, 0 otherwise
+
+=head3 DESCRIPTION
+
+    this method appends an IO
+
+=cut
+
+#=============================================================
+sub append {
+    my $self = shift;
+    my $io = shift;
+
+    # check IO with restriction
+    if (defined $self->restriction) {
+        if (!$self->check($self->parent(), $io)) {
+            return 0;
+        }
+    }
+
+    $self->ios->{$io->id} = $io;
+}
+
+#=============================================================
+
+=head2 remove
+
+=head3 INPUT
+
+    $io: IO to remove
+
+=head3 OUTPUT
+
+    1 if success, 0 otherwise
+
+=head3 DESCRIPTION
+
+    this method removes an IO
+
+=cut
+
+#=============================================================
+sub remove {
+    my $self = shift;
+    my $io = shift;
+
+    # check IO with restriction
+    if (defined $self->restriction) {
+        if (!$self->check($self->parent(), $io, 1)) {
+            return 0;
+        }
+    }
+
+    # remove the io
+    delete $self->ios->{$io->id};
+}
+
+1;
+