Re: [Libguestfs] [nbdkit PATCH 1/2] rust: Implement can_cache

On 8/16/19 12:08 PM, Eric Blake wrote: > Implementing extents requires some coordination for the Rust code to > call back into libnbdkit; I'm not familiar with Rust enough to do > that. But with placeholders for those slots, implementing > can_cache/cache is trivial. This improves the situation mentioned in > commit 031fae85. > > Signed-off-by: Eric Blake <eblake(a)redhat.com&gt; > ---

And of course, if you want to actually implement extents, and figure out how to expose C-based nbdkit functions to be called by Rust code, be my guest (for .zero, we need nbdkit_set_error(), for extents, we need nbdkit_add_extent(), and then we have several other utility functions like nbdkit_realpath() that could be useful).