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Re: [webmaster33] GT::Session::File problems

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Re: [webmaster33] GT::Session::File problems In reply to
Again a BUG in GT::Session::File module.
There is no file locking used in this module at all!

Code:
sub save {
...
my $fh = \do {local *FH; *FH};
open ($fh, "> $file") or return $self->error ('CANTOPEN', 'FATAL', $file, "$!");
my $dump = GT::Dumper->dump(
var => '$SESSION',
data => $self->{data}
);
print $fh $dump;
close $fh;
...
}

flock() should be used to avoid multiple process access to the same file (read or write) at the same time!

I'm afraid this is true for all Links SQL system as I did read strange data losses on config file, plugin config files, or other file based storages!!!
This is shame Frown

Links SQL does not have support, to be used in race condition environment (except for the database access where the table or row locking is a database dependent feature)!
It should be updated/modified to have file locking used in ALL file reads & writes!

Best regards,
Webmaster33


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Subject Author Views Date
Thread GT::Session::File problems webmaster33 4170 May 8, 2003, 9:15 AM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4037 May 8, 2003, 12:11 PM
Thread Re: [Paul] GT::Session::File problems
webmaster33 4040 May 8, 2003, 1:27 PM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4099 May 8, 2003, 1:54 PM
Thread Re: [Paul] GT::Session::File problems
webmaster33 4031 May 8, 2003, 2:49 PM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4024 May 8, 2003, 2:52 PM
Thread Re: [Paul] GT::Session::File problems
webmaster33 4091 May 8, 2003, 2:56 PM
Post Re: [webmaster33] GT::Session::File problems
Paul 4077 May 8, 2003, 3:17 PM
Post Re: [webmaster33] GT::Session::File problems
webmaster33 4039 May 8, 2003, 3:11 PM
Post Re: [webmaster33] GT::Session::File problems
webmaster33 4052 May 8, 2003, 3:20 PM
Post Post deleted by webmaster33
webmaster33 4032 May 9, 2003, 11:13 AM
Thread Re: [webmaster33] GT::Session::File problems
webmaster33 4009 May 18, 2003, 9:35 AM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4032 May 18, 2003, 10:24 AM
Thread Re: [Paul] GT::Session::File problems
webmaster33 4038 May 18, 2003, 11:18 AM
Thread Re: [webmaster33] GT::Session::File problems
Paul 3968 May 18, 2003, 11:37 AM
Post Re: [Paul] GT::Session::File problems
webmaster33 4008 May 18, 2003, 11:45 AM