Ceph

See librados_api branch.

BTW if we do end up changing this, we should be consistent with naming... some functions are rados_verb_noun and others are rados_noun_verb.

And while we're breaking backward compatibility, the read and write functions have some strange parameters ordering: offset, then buffer, then length. Should reorder that to something that'll make sense a bit more.

Do we want to implement support for multiple clusters in SimpleMessenger, or are we going to have basically full incarnations of the client for each cluster we talk to?

BTW if we do end up changing this, we should be consistent with naming...
some functions are rados_verb_noun and others are rados_noun_verb.

Done in commit:7af2e2d7b8a2f24fe022106fa8c979683bf3146f

the read and write functions have some strange parameters ordering:
offset, then buffer, then length

It may be strange, but it seems to be consistent. Is there another order that would be better?