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Re: Hash of Hashes, referencing, dereferencing and Net::SNMP

by matija (Priest)
on Oct 06, 2004 at 12:16 UTC ( [id://396958]=note: print w/replies, xml ) Need Help??


in reply to Hash of Hashes, referencing, dereferencing and Net::SNMP

Well, the problem is here: 
$results_table->{$$group}}->{$$site_name} = {
                                                sysobjid => "unknown",
                                                snmp_status => "NOT OK
+",
                                            };

[download]
Contrary to what might be convenient, you are assigning a whole new hash reference (and leaving the old hash orphaned and subject to garbage collection).

You will have to break the statement down into two parts: 

results_table->{$$group}}->{$$site_name}->{sysobjid}="unknown;
results_table->{$$group}}->{$$site_name}->{snmp_status}="NOT OK";

[download]

Replies are listed 'Best First'.
Re^2: Hash of Hashes, referencing, dereferencing and Net::SNMP
by Smylers (Pilgrim) on Oct 06, 2004 at 15:28 UTC
    You will have to break the statement down into two parts: 
    results_table->{$$group}}->{$$site_name}->{sysobjid}="unknown;
results_table->{$$group}}->{$$site_name}->{snmp_status}="NOT OK";

    [download]

    If you want to put the convenience back then use a fake loop to avoid the repetition:

    for ($results_table->{$$group}{$$site_name})
{
  $_->{sysobjid} = 'unknown';
  $_->{snmp_status} = 'NOT OK';
}

    [download]
    Smylers
[reply]
[d/l]
[select]
Re^2: Hash of Hashes, referencing, dereferencing and Net::SNMP
by revdiablo (Prior) on Oct 06, 2004 at 18:08 UTC
    You will have to break the statement down into two parts

    Another approach would be using a hash slice:

    my $site = results_table->{$$group}->{$$site_name}; # for convenience
@{ $site }{("sysobjid", "snmp_status")} = ("unknown", "NOT OK");

    [download]
[reply]
[d/l]

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