Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / v9 / lib / perl5 / 5.8.8 / Net / FTP / I.pm

## $Id: //depot/libnet/Net/FTP/I.pm#13 $
## Package to read/write on BINARY data connections
##

package Net::FTP::I;

use vars qw(@ISA $buf $VERSION);
use Carp;

require Net::FTP::dataconn;

@ISA = qw(Net::FTP::dataconn);
$VERSION = "1.12"; 

sub read {
 my    $data    = shift;
 local *buf     = \$_[0]; shift;
 my    $size    = shift || croak 'read($buf,$size,[$timeout])';
 my    $timeout = @_ ? shift : $data->timeout;

 my $n;

 if ($size > length ${*$data} and !${*$data}{'net_ftp_eof'}) {
   $data->can_read($timeout) or
          croak "Timeout";

   my $blksize = ${*$data}{'net_ftp_blksize'};
   $blksize = $size if $size > $blksize;

   unless ($n = sysread($data, ${*$data}, $blksize, length ${*$data})) {
     return undef unless defined $n;
     ${*$data}{'net_ftp_eof'} = 1;
   }
 }

 $buf = substr(${*$data},0,$size);

 $n = length($buf);

 substr(${*$data},0,$n) = '';

 ${*$data}{'net_ftp_bytesread'} += $n;

 $n;
}

sub write {
 my    $data    = shift;
 local *buf     = \$_[0]; shift;
 my    $size    = shift || croak 'write($buf,$size,[$timeout])';
 my    $timeout = @_ ? shift : $data->timeout;

 # If the remote server has closed the connection we will be signal'd
 # when we write. This can happen if the disk on the remote server fills up

 local $SIG{PIPE} = 'IGNORE' unless $^O eq 'MacOS';
 my $sent = $size;
 my $off = 0;

 my $blksize = ${*$data}{'net_ftp_blksize'};
 while($sent > 0) {
   $data->can_write($timeout) or
        croak "Timeout";

   my $n = syswrite($data, $buf, $sent > $blksize ? $blksize : $sent ,$off);
   return undef unless defined($n);
   $sent -= $n;
   $off += $n;
 }

 $size;
}

1;