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Re: [libvirt] [PATCH 2/4] conf: Parse and format disk <wwn>



On 2012年08月31日 00:14, Paolo Bonzini wrote:
Il 29/08/2012 18:36, Osier Yang ha scritto:
@@ -11557,6 +11564,7 @@ virDomainDiskDefFormat(virBufferPtr buf,
      if (def->transient)
          virBufferAddLit(buf, "<transient/>\n");
      virBufferEscapeString(buf, "<serial>%s</serial>\n", def->serial);
+    virBufferEscapeString(buf, "<wwn>%s</wwn>\n", def->wwn);

What happens if the wwn was not passed?

If it is NULL, it's a bug (same for serial).

If it is empty, the output will not obey the schema, so the whole
element should be left out.  I think it's best to do the same for
serial, but technically it should be ok.


See Eric's follow up explaination. I was also confused about it
before not looking into virBufferEscapeString one step further
though. :-)

Osier


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