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[Xen-devel] question about relationship between /var/lib/xenstored/tdb and xenstore_domain_interface



  Hi, when I read following link,
http://wiki.xen.org/xenwiki/XenIntro
, then I browsed some Xen 3.1 code. A question puzzles me.
As we know "The physical xenstore resides in one file:
/var/lib/xenstored/tdb. " , but drives(frontend/backend) visit
Xenstore by Xenbus. The data structure manipulated by Xenbus is
xenstore_domain_interface, not tdb. while tdb file is visited by
Xenstored daemon.

I cann't figure out the relationship between tdb and  xenstore_domain_interface.

For example,  if Xenbus sends a  XS_DIRECTORY  query message , where
does the reply message come from?

Thanks in advance!

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