File Coverage

blib/lib/Socket/MsgHdr.pm

Criterion	Covered	Total	%
statement	47	47	100.0
branch	13	16	81.2
condition			n/a
subroutine	12	12	100.0
pod	3	3	100.0
total	75	78	96.1

package Socket::MsgHdr;

use 5.006;
use strict;
#use bytes;

our @EXPORT    = qw( sendmsg recvmsg );
our @EXPORT_OK = qw( pack_cmsghdr unpack_cmsghdr ); # Undocumented!
our $VERSION = '0.05';

# Forcibly export our sendmsg, recvmsg methods
BEGIN {
  *IO::Socket::sendmsg = \&sendmsg;
  *IO::Socket::recvmsg = \&recvmsg;
}

# Define our simple accessor/mutator methods

sub flags {
  my $self = shift;
  $self->{flags} = shift if @_;
  $self->{flags} = 0 unless defined $self->{flags};
  $self->{flags};
}

BEGIN {
  for my $attr (qw|name buf control|) {
    no strict 'refs';

    *{$attr} = sub {
      my $self = shift;
      $self->{$attr} = shift if @_;
      $self->{$attr} = '' unless defined $self->{$attr};
	  $self->{$attr};
    };
  }

  foreach my $attr (qw|name buf control|) {
    no strict 'refs';
    *{$attr . "len"} = sub {
      my $self = shift;
      my $olen = length($self->$attr);
      return $olen unless @_;
      my $nlen = shift;

      if ($nlen != $olen) {
        $self->{$attr} = $olen > $nlen ?
                         substr($self->{$attr}, 0, $nlen) :
                         "\x00" x $nlen;
      }
      $nlen;
    };
  }

}

# XS functions
# ============
#
# -- sendmsg, recvmsg, pack_cmsghdr, unpack_cmsghdr
#
require XSLoader;
XSLoader::load('Socket::MsgHdr', $VERSION);

# Module import
# =============
#
sub import {
  require Exporter;
  goto &Exporter::import;
}

# Constructor
# ===========
#
sub new {
  my $class = shift;
  my $self = { name    => '',
               control => '',
               buf     => '',
               flags   => 0 };

  bless $self, $class;

  my %args = @_;
  foreach my $m (keys %args) {
    $self->$m($args{$m});
  }

  return $self;
}

# Methods
# =======
#
# -- cmsghdr
#
sub cmsghdr {
  my $self = shift;
  unless (@_) { return &unpack_cmsghdr($self->{control}); }
  $self->{control} = &pack_cmsghdr(@_);
}

# -- name, buf, control, flags
# -- namelen, buflen, controllen
#    (loaded in INIT)

1;
__END__