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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 4257 May 8, 2003, 9:15 AM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4124 May 8, 2003, 12:11 PM
Thread Re: [Paul] GT::Session::File problems
webmaster33 4126 May 8, 2003, 1:27 PM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4186 May 8, 2003, 1:54 PM
Thread Re: [Paul] GT::Session::File problems
webmaster33 4117 May 8, 2003, 2:49 PM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4110 May 8, 2003, 2:52 PM
Thread Re: [Paul] GT::Session::File problems
webmaster33 4178 May 8, 2003, 2:56 PM
Post Re: [webmaster33] GT::Session::File problems
Paul 4164 May 8, 2003, 3:17 PM
Post Re: [webmaster33] GT::Session::File problems
webmaster33 4126 May 8, 2003, 3:11 PM
Post Re: [webmaster33] GT::Session::File problems
webmaster33 4139 May 8, 2003, 3:20 PM
Post Post deleted by webmaster33
webmaster33 4118 May 9, 2003, 11:13 AM
Thread Re: [webmaster33] GT::Session::File problems
webmaster33 4096 May 18, 2003, 9:35 AM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4118 May 18, 2003, 10:24 AM
Thread Re: [Paul] GT::Session::File problems
webmaster33 4124 May 18, 2003, 11:18 AM
Thread Re: [webmaster33] GT::Session::File problems
Paul 4054 May 18, 2003, 11:37 AM
Post Re: [Paul] GT::Session::File problems
webmaster33 4095 May 18, 2003, 11:45 AM