On Fri, 2009-06-19 at 10:29 +0100, Richard Hughes wrote: > In PackageKit, the packaging backend is able to control what part of > each transaction is cancellable so we can do things like set the > cancel GUI button sensitive or insensitive at appropriate times. For > instance loading the rpmdb is not cancellable, but downloading a file > is. In converting some of the server code to use GCancellable, I've > found it's missing this 'hinting' functionality. > > It would be really great to wrap GCancellable in another object, in my > case PkCancellable and add the extra functionality there. > Unfortunately _GCancellable is private and not public, and thus can't > be subclassed. I've attached a patch to make it public, and use a > _GCancellablePrivate struct, which solves my problem nicely.
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