def get_storage_idxs(self):
KEY = self._key("storage_idxs")
if not self.config_db.has_key(KEY):
logging.debug("--- Storage manager knows of no storage idxs")
return []
idxs_str = self.config_db[KEY]
storage_idxs = IE.binary_decode_int_varlen_list(idxs_str)
logging.debug("--- Storage manager knows of idxs: %s" % str(storage_idxs))
return storage_idxs
def __init__(self, db_manager, txn_manager):
self.db_manager = db_manager
self.txn_manager = txn_manager
self.block_manager = BlockManager.BlockManager(self.db_manager, self.txn_manager)
self.block_sequencer = BlockSequencer.BlockSequencer(
self.db_manager, self.txn_manager, self, self.block_manager
)
self.report_manager = Reporting.DummyReportManager()
self.block_listeners = []
self.config_db = db_manager.get_database_btree("config.db", "storage", txn_manager)
logging.debug("Loaded storage manager db")
for key, val in self.config_db.iteritems():
logging.debug("Storage manager db: [%s]->[%s]" % (base64.b64encode(key), (base64.b64encode(val))))
self.block_container_db = db_manager.get_database_hash("storage.db", "blocks", txn_manager)
logging.debug("********** Loaded storage manager logs")
for key, val in self.config_db.iteritems():
logging.debug("Storage manager blocks: [%s]->[%s]" % (base64.b64encode(key), base64.b64encode(val)))
# Mapping of storage sequences to indices and vice versa
# The storage sequence data consists of storage index and sequence
# ID string
# In the config_db we store the persistent copy of the information
# in the seq_to_index and index_to_seq:
# repo.%index.seq = sequence
# repo.%index.storage = storage index
# repo.next_index = <the next index>
self.seq_to_index = {}
self.index_to_seq = {}
NS_KEY = self._key("next_seq")
if self.config_db.has_key(NS_KEY):
self.next_seq_idx = int(self.config_db[NS_KEY])
else:
self.next_seq_idx = 0
SEQ_PREFIX = self._key("SEQ.")
for key, val in self.config_db.iteritems_prefix(SEQ_PREFIX):
sequence_id = key[len(SEQ_PREFIX) :]
storage_idx, sequence_idx = IE.binary_decode_int_varlen_list(val)
self.seq_to_index[sequence_id] = (storage_idx, sequence_idx)
self.index_to_seq[sequence_idx] = (storage_idx, sequence_id)
