xenctrl domain name

xenctrl domain name

[Shaun R.]

Are there any function in the xenctrl lib (xenctrl.h) or some where else 
that will provide a list of domains that also returns the domains name. 
I've found functions like xc_domain_getinfo and xc_domain_getinfolist that 
return a list of domains but they do not give the domain name.  If there's 
not, is there a function to return the name of a domain from it's id?

~Shaun 

Re: xenctrl domain name

[Ben Guthro]

Its in xenstore.

You can use xs.h via xs_read

alternaltly from the shell:
xenstore-read /local/domain/0/name


Shaun R. wrote on 08/11/2008 03:02 PM:
> Are there any function in the xenctrl lib (xenctrl.h) or some where 
> else that will provide a list of domains that also returns the domains 
> name. I've found functions like xc_domain_getinfo and 
> xc_domain_getinfolist that return a list of domains but they do not 
> give the domain name.  If there's not, is there a function to return 
> the name of a domain from it's id?
>
> ~Shaun
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

Re: xenctrl domain name

[Shaun R.]

Wonder why the name is not provided with the domain info from those 
functions.  Getting a domain list and then having to loop through xenstore 
until i find the name seams like extra work.

~Shaun 

Re: Re: xenctrl domain name

[Ben Guthro]

why would you need to loop, if you have the domid from the domain list?


Shaun R. wrote on 08/11/2008 03:30 PM:
> Wonder why the name is not provided with the domain info from those 
> functions.  Getting a domain list and then having to loop through 
> xenstore until i find the name seams like extra work.
>
> ~Shaun
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

Re: Re: xenctrl domain name

[Shaun R.]

My domains are tracked by the domain name, so if i wanted to find how much 
cpu the domain named george was using, i would now have to get a list of 
domain id's and loop through each id in the store until i found the name 
george... Or am i missing somthing?

~Shaun 

Re: Re: Re: xenctrl domain name

[Keir Fraser]

On 11/8/08 20:57, "Shaun R." <mailinglists@unix-scripts.com> wrote:

> My domains are tracked by the domain name, so if i wanted to find how much
> cpu the domain named george was using, i would now have to get a list of
> domain id's and loop through each id in the store until i found the name
> george... Or am i missing somthing?

That's what you have to do unless you can cache name information some other
way. Xen doesn't know about domain names hence it is not possible for the
libxenctrl functions to give you faster access to names via a direct
hypervisor interface.

 -- Keir