2007-02-19 Casey Marshall <csm@soe.ucsc.edu>

2007-02-19  Casey Marshall  <csm@soe.ucsc.edu>

	* config.cc (g_conf): set `bdbstore_cachesize' to 0 (== use
	default BDB cache size).
	(parse_config_options): handle `--bdbstore-cachesize'.
	* config.h (md_config_t): add `bdbstore_cachesize.'
	* osbdb/OSBDB.cc (binary_search): reimplemented, non-dumb like.
	(OSBDB::opendb): new method.
	(OSBDB::mount): handle db opening here.
	(OSBDB::umount): close the DB, dispose of Db pointer.
	(OSBDB::mkfs): handle db opening here.
	(OSBDB::pick_object_revision_lt): implemented.
	(OSBDB::stat): handle split between object data and object
	"inode."
	(OSBDB::remove): likewise; also remove attributes.
	(OSBDB::truncate): likewise; don't worry about large objects
	here.
	(OSBDB::read): handle data/inode split; only use DB_DBT_PARTIAL if
	we have to.
	(OSBDB::write): likewise.
	(OSBDB::clone): handle data/inode split; just read in the whole
	object.
	(OSBDB::create_collection): fix collections list move.
	(OSBDB::collection_add): fix objects list move.
	(OSBDB::_setattr): handle attribute key changes; fix attribute
	names move.
	(OSBDB::_getattr): new method.
	(OSBDB::getattr): new method.
	(OSBDB::getattrs): new method.
	(OSBDB::rmattr): new method.
	(OSBDB::listattr): fix attribute key types; fix reading
	attributes.
	(OSBDB::collection_setattr): implemented.
	(OSBDB::collection_rmattr): implemented.
	(OSBDB::collection_getattr): implemented.
	(OSBDB::collection_listattr): implemented.
	* osbdb/OSBDB.h: enforce POD types for DB keys; add << operator
	for DB key types. Make an "inode" type for object metadata, so we
	don't need to prepend an object length to the object data.
	(OSBDB::env, OSBDB::mounted, OSBDB::opened): new fields.
	(OSBDB::OSBDB): don't initialize `db' here.
	(OSBDB::~OSBDB): handle db closure.

git-svn-id: https://ceph.svn.sf.net/svnroot/ceph@1111 29311d96-e01e-0410-9327-a35deaab8ce9