[vbox-dev] Fw: Setting HPET via SOAP

Klaus Espenlaub klaus.espenlaub at oracle.com
Wed Nov 26 15:53:07 UTC 2014

On 26.11.2014 16:09, Yuriy Tretyakov wrote:
> Hi Klaus.
> Thank you for your quick answer!
> Sure, vm machine is turned off. I trying to turn HPET on after 
> snapshot is restored (machine is down) but got this error.
> And yes , as I understand from SDK, such settings shall work with 
> mutable machine. Setting RAM size works fine, but HPET failed.
> I specify that  IMachine_setCPUHotPlugEnabled doesn't work this way. 
> Few month ago we were try to set videocapturing on and also no 
> positive results. Could it be a defect with processing boolean values 
> when we work with vboxwebsrv?
Can't tell from here what's "going over the wire" with your code, but as 
long as the error message has the word "mutable" in it I wouldn't expect 
trouble with the parameters as such, more with the references.

Is there a particular reason why you can't/don't want to use ZSI? It's 
what e.g. vboxshell.py uses if one selects the webservice. It gives a 
nice, direct python object interface to the API, and can also talk to 
the local API when it runs on the same system...

> Regards,
> Yuriy
> --- Исходное сообщение ---
> От кого: "Klaus Espenlaub" <klaus.espenlaub at oracle.com>
> Дата: 26 ноября 2014, 17:02:12
>     Hi Yuriy,
>     On 26.11.2014 15:42, Yuriy Tretyakov wrote:
>>         Hi Guys!
>>         Forum  moderator suggests me to contact somebody from
>>         developers to solve my problem faster than waiting answer on
>>         forum.
>>         I have a trouble setting boolean values via SOAP for VBOX.
>>         Actually, I need to set IMachine_setHPETEnabled to True
>>         programmatically, but IMachine_setCPUHotPlugEnabled also
>>         doesn't work.
>>         Trying to set these parameters always follows with Machine is
>>         not mutable error. But setting of memory like in SDK example
>>         works fine.
>>         What I'm actually do. I using suds SOAP client library for
>>         Python.
>     This doesn't sound like a problem with specific bindings to me
>     (never used suds though, only used ZSI as you can see in the
>     samples in the SDK). From the symptoms you're using the wrong
>     IMachine reference. On the other hand, I can't explain why setting
>     the memory size with the same reference works, it's doing the
>     exact same checks on the API implementation side.
>     Are you sure that the snapshot you are restoring is an "offline"
>     one, i.e. for a powered off VM? Otherwise the VM is in saved
>     state, which means no significant reconfiguration is possible (but
>     again, same rules for HPET and memory size...).
>     Klaus 
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