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Diffstat (limited to 'lib/ManaTools/Shared/disk_backend/IOs.pm')
-rw-r--r-- | lib/ManaTools/Shared/disk_backend/IOs.pm | 189 |
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; + |