[Libvir] [PATCH] Check availability of driver calls

[Richard W.M. Jones]

This is a repost of a patch I sent before which adds the ability to 
check for driver features.  This is completely internal to libvirt and 
does not add any public APIs.

The original discussion is here:
https://www.redhat.com/archives/libvir-list/2007-July/thread.html#00437
and continues here:
https://www.redhat.com/archives/libvir-list/2007-August/thread.html#00000

Daniel Veillard said:
 >> +typedef int
 >> +    (*virDrvSupportsFeature) (virConnectPtr conn, virDrvFeature 
feature);
 >
 >I would rather use , int features) where you OR the features, allows
 >to know in one call if you get what you want or not.

My objection to that is here:
https://www.redhat.com/archives/libvir-list/2007-August/msg00000.html

Rich.

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