[Libvir] RFC: PATCH 0/5: asynchronous background jobs

[Richard W.M. Jones]

Daniel P. Berrange wrote:
> There are a number of existing APIs which can benefit from
> this, hence I decided to work on this separately from the
> main storage APIs. The APIs which can make use of this are
> virDomainCreateLinux, virDomainCreate, virNetworkCreate,
> virNetworkCreateXML, virDomainSave, virDomainRestore, and
> virDomainDumpCore. For all of these we add a second variant
> postfixed with 'Job' in the name, returning a virJobPtr object

Another way to do this is to overload the domain etc. objects and make 
them into suspensions.  The advantages being (a) no new API is needed 
and (b) some code benefits from overlapping computation even without 
being changed.  See also my reply here:

http://www.redhat.com/archives/libvir-list/2007-July/msg00257.html

OTOH, suspensions require "interesting" code changes inside libvirt, 
although not necessarily requiring threads - there are several possible 
implementations.

Rich.

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