On Thu, 17 Mar 2005, Stas Bekman wrote:
James Orr wrote:Hi,
I have an occaisional error happening with a module i'm using from a mod_perl script. This is in my "new" method ...
my $ifh = IO::File->new($project_dir.'/info.xml') || die "Can't open info file: $!"; $data->{'info'} = $parser->parse_fh($ifh);
And the error it gives is ...
read on filehandle failed: Can't use an undefined value as a symbol reference at /usr/lib/perl5/site_perl/5.8.4/i686-linux/XML/LibXML.pm line 336.
By occaisional I mean that this error has occured 21 times in over 21,000 hits.
James, assuming that you don't use any eval {} blocks, try to install:
use Carp; $SIG{__DIE__} = \&Carp::confess;
(e.g. at the startup or your script)
so the next time it fails you will see the exact calls trace. You can further expand that sighandler to dump more information to figure out what triggers the problem, helping you to define a reproduceable at will test program which can them be easily solved.
Stas does have a good recommendation here, so please don't discount it. I should point out the XML::LibXML module can read directly from a file. Is there a specific reason why you don't use that method? Search for the parse_file( $filename ) method. I am interested in seeing if a specific problem exists in the XML::LibXML module though as it is a module I generally track and use quite often. Currently it is using methods that are deprecated in the C library and it needs to be transitioned to a new logic. As time permits of course ...
//========================================================\\ || D. Hageman <dhageman@dracken.com> || \\========================================================//
