#
# (c) Jan Gehring <jan.gehring@gmail.com>
#
# vim: set ts=2 sw=2 tw=0:
# vim: set expandtab:
package Rex::Shared::Var::Scalar;
use strict;
use warnings;
our $VERSION = '1.3.2'; # VERSION
use Fcntl qw(:DEFAULT :flock);
use Data::Dumper;
use Storable;
sub __lock;
sub __retr;
sub __store;
sub TIESCALAR {
my $self = { varname => $_[1], };
bless $self, $_[0];
}
sub STORE {
my $self = shift;
my $value = shift;
return __lock sub {
my $ref = __retr;
my $ret = $ref->{ $self->{varname} } = $value;
__store $ref;
return $ret;
};
}
sub FETCH {
my $self = shift;
return __lock sub {
my $ref = __retr;
return $ref->{ $self->{varname} };
};
}
sub __lock {
sysopen( my $dblock, "vars.db.lock", O_RDONLY | O_CREAT ) or die($!);
flock( $dblock, LOCK_SH ) or die($!);
my $ret = &{ $_[0] }();
close($dblock);
return $ret;
}
sub __store {
my $ref = shift;
store( $ref, "vars.db" );
}
sub __retr {
if ( !-f "vars.db" ) {
return {};
}
return retrieve("vars.db");
}
1;