[AGENT++] set_access requirements

[Frank Fock]

Hi Yasemin,

First, the MAX-ACCESS clause takes "read-only"
as value not "READ_ONLY".
The set_access(..) method should be called with
value "READONLY" only once (if the corresponding
MIB object has a maximum access of "read-only").
Switching the max. access value during runtime
does not make sense in most cases.

Best regards,
Frank

On 16.04.2010 10:21, Yasemin YILMAZ wrote:
> Hi all,
>
> I'm trying to understand AGENT++'s API usage through source code analysis. I
> wonder when set_access function must be call? In notification_log_mib
> implementation code, the function nlmLogVariableEntry::add_variable firstly
> sets NOACCESS;
>
>      for (int j=nNlmLogVariableCounter32Val; j<r->size(); j++) {
>          r->get_nth(j)->set_access(NOACCESS);
>      }
>
> Then according to log variable's type, nlmLogVariableTable MIB table's
> columnar value is set and mib access is set to READ-ONLY;
>
>      switch (vb.get_syntax()) {
>      case sNMP_SYNTAX_INT32:
>          r->get_nth(nNlmLogVariableInteger32Val)->
>            replace_value(vb.clone_value());
>          r->get_nth(nNlmLogVariableInteger32Val)->
>            set_access(READONLY);
>          r->get_nth(nNlmLogVariableValueType)->
>            set_value(4);
>          break;
>      case sNMP_SYNTAX_TIMETICKS:
>      ...
>      }
>
>     I have a MIB object as following and I want to this managed object can
> changeable from my snmp agent but snmp managers only read this information:
>     myMemUsage OBJECT-TYPE
>             SYNTAX Integer32
>             MAX-ACCESS READ_ONLY
>             STATUS current
>             DESCRIPTION "memory usage"
>             ::= { mySystemGroup 3 }
>
>    Should I call set_access to set NOACCESS before setting a value and, after
> setting a value (calling the function set_value) should I call set_access to
> set READONLY?
>
>    Can you explain please?
>
>    Thanks in advance for your help,
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