[AGENT++] Is it possible to return error from RowStatus set function?

[Frank Fock]

Hi,

Independent from this being a bug or not, it is not
recommended to return an error from MibLeaf::set(..)
because this will (likely) break the atomic SET (2PC).

I will check if there is a bug or not anyway.

Best regards,
Frank

Instead overwrite the ::prepare_set_request method.

dennis w wrote:
> It seems to me that we cannot return error code  
> mibTableRowStatus::set(const Vbx& vb)  when creating a row at dynamic 
> table. Here is what I got from the   "cmd_exe_mib" example.
> 
> In the cmd_exe_mib.cpp, we have
> 
> int cmdExecutionCmdRowStatus::set(const Vbx& vb)
> {
> ...
>       if (vb.get_value(l) != SNMP_CLASS_SUCCESS)
>                return SNMP_ERROR_WRONG_TYPE;
> ...
> 
> But if we actually return this error "SNMP_ERROR_WRONG_TYPE".  The agent 
> will just lock. You have to kill -9 to kill the process (at linux).
> 
> The stack trace is following,
> 
> #0  0x001ac7a9 in __lll_mutex_lock_wait () from /lib/tls/libpthread.so.0
> #1  0x001a9797 in _L_mutex_lock_28 () from /lib/tls/libpthread.so.0
> #2  0x0061f330 in __JCR_LIST__ () from /home/agent++/lib/libagent++.so
> #3  0xbfff8700 in ?? ()
> #4  0xbfff8638 in ?? ()
> #5  0x0056d862 in Agentpp::Synchronized::lock (this=0x8128544) at 
> threads.cpp:395
> #6  0x0056d862 in Agentpp::Synchronized::lock (this=0x8128514) at 
> threads.cpp:395
> #7  0x0056c7c6 in Agentpp::ThreadManager::start_synch (this=0x8128510)
>    at threads.cpp:140
> #8  0x00557024 in Agentpp::MibTable::remove_unused_rows (this=0x8128510) 
> at mib.cpp:2467
> #9  0x0055e041 in Agentpp::Mib::cleanup (this=0x8123e90) at mib.cpp:4030
> #10 0x0805adcc in main (argc=1, argv=0xbfff8ac4) at agent.cpp:522
> 
> Is that something we should not do , or it is possible a bug?
> 
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