[libvirt] [PATCH] storage pool discovery

[Daniel P. Berrange]

On Thu, Aug 21, 2008 at 10:29:43AM -0400, David Lively wrote:
> Hi Folks -
>   Here's my second pass at storage pool discovery.  I've taken Daniel's
> suggestion and made it return a single XML doc containing <source>
> elements rather than an array of <pool> docs (and also incorporated
> suggestions from Daniel V and Jim M).
>   Note that the storage <source> <name> patch is closely related
> (without it, the <source> docs returned for logical pools aren't
> correct).

Excellant, I think this patch looks more or less good to commit now.

> +static char *
> +virStorageBackendFileSystemNetDiscoverPools(virConnectPtr conn,
> +                                            const char *srcSpec,
> +                                            unsigned int flags ATTRIBUTE_UNUSED)

...

> +    const char *prog[] = { SHOWMOUNT, "--no-headers", "--exports", NULL, NULL };
> +    const char *start_tag = "<SourceList>\n";
> +    const char *end_tag = "</SourceList>\n";

I'd prefer that to be  <sources>  - we avoid capitals in the
XML element names everywhere else, and in the few cases of
joining words use an underscore, but I think plural form is
OK for this.

> +static char *
> +virStorageBackendLogicalDiscoverPools(virConnectPtr conn,
> +                                      const char *srcSpec ATTRIBUTE_UNUSED,
> +                                      unsigned int flags ATTRIBUTE_UNUSED)


> +    const char *prog[] = { VGS, "--noheadings", "-o", "vg_name", NULL };
> +    const char *start_tag = "<SourceList>\n";
> +    const char *end_tag = "</SourceList>\n";

We should #define these two tags in storage_backend.h so each driver doesn't
need to dup them


Daniel
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