I have an object that needs to maintain an open file handle. I wrote my code in a way that made sence to me, however when I try to call the GetBlocks() function in the following code I get a 'Bad File Descriptor' error.

Here is the code for the object: 
package OEFSDevice;

sub new
{
    my $class = shift;
    my (%params) = @_;
    my $ref = {
        'Device' => $params{'Device'},
    };
    print("Device: |" . $params{'Device'} . "|\n");
    sysopen($ref->{'HANDLE'},$params{'Device'}, O_RDWR | O_SYNC) || re
+turn 0;
    return bless($ref, $class);
}

sub GetBlocks($$$)
{
    my $self = shift;
    my ($Offset, $Count, $Buffer) = @_;
    sysseek($self->{'HANDLE'},$Offset * 512,0) || return 0;
    sysread($self->{'HANDLE'},$$Buffer,$Count * 512) || return 0;
    return 1;
}

sub SetBlocks($$$)
{
    my $self = shift;
    my ($Offset, $Count, $Buffer) = @_;
    sysseek($self->{'HANDLE'},$Offset * 512,0) || return 0;
    syswrite($self->{'HANDLE'},$$Buffer,$Count * 512) || return 0;
    return 1;
}

sub Close
{
    my $self = shift;
    close($self->{'HANDLE'});
}

sub DESTROY
{
    Close();
}
1;

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In reply to Need object to retain open filehandle. by exodist

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