Thought I ought to make this thread a little clearer - I thought my problem was gone but it seems that it's only just started: 
From my script I can do these ok:

my $return = my::module::exit_routine();

sub reverse_modifier {
# I modify default behaviour of the exit routine if I get passed - som
+e times I am not needed. 
}

my %modifier = ( reverse_modifier => \&reverse_modifier );
my $return = my::module::exit_routine(\%modifier);

[download]
In my::module::exit_routine I can deal with %modifier being present or not:

my %revmod = eval { %{ $_[0] } }

[download]
But here is my new sticking point - I am unable to find a way to do this from my script:

my $log = LogSimple->new(_exit => my::module::exit_routine(\%modifier)
+ );
$log->err("An error occured, _exit will happen before I exit but now I
+ want to force exit_routine to also use the \%modifier as well")

[download]
When an error is trapped and $log->err is executed I get:
Not a CODE reference at /usr/local/lib/.../LogSimple.pm line 122:
From my LogSimple package line 122 = $exit_ref->($self);


Effectively I am trying to send a reference which has another reference as one of it's parameters and my syntax is completely jiggered.
Infact, the whole concept could be busted up now that I am trying to introduce %modifier to plug up a hole I never knew I had.

Package LogSimple
...
sub wlog {
    my ($self,$MESSAGE,$ERR,$LEVEL,$LOGLEVEL) = @_;
    my $TIME = datetime();
    my $exit_ref;

    if ( $LOGLEVEL <= $self->{_loglevel} ) {
        open (LOG, ">>$self->{_log}") || warn "Unable to open log file
+ $self->{_log}: $!";
        print LOG "$LEVEL: $TIME : $self->{_script} : $MESSAGE\n";
        print "$LEVEL: $TIME : $self->{_script} : $MESSAGE\n" if ( $se
+lf->{_verbosity} > 0 );
        close (LOG);
    }

    if ( $ERR ) {
        if ( exists $self->{_exit} ) {
        use Data::Dumper;
        print Dumper $self->{_exit};
            $exit_ref = $self->{_exit};
            $exit_ref->($self); # LINE 122
        if ( $LOGLEVEL <= $self->{_loglevel} ) {
        open (LOG, ">>$self->{_log}") || warn "Unable to open log file
+ $self->{_log}: $!";
        print LOG "$LEVEL: $TIME : $self->{_script} : $MESSAGE\n";
        print "$LEVEL: $TIME : $self->{_script} : $MESSAGE\n" if ( $se
+lf->{_verbosity} > 0 );
        close (LOG);
        };
    }

    exit $ERR
    }
}

[download]
Any assistance much appreciated.

Regards,
Darren 
 


In reply to Re: Dereferencing %hash that does not exist.
by perldarren

in thread Dereferencing %hash that does not exist.
by perldarren





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