def __init__(self, name, aws_access_key_id,
aws_secret_access_key, bucket_name, memcache_servers,
read_only=False):
BaseStorage.__init__(self, name)
#import pdb; pdb.set_trace()
self._s3 = S3Aspect(aws_access_key_id, aws_secret_access_key,
bucket_name)
self._memcache = MemcacheAspect(memcache_servers.split(' '),
'bucket:%s' % bucket_name)
if read_only:
self._is_read_only = True
self._clear_temp()
#self._tid = None # the current tid
#self._ts = None # the current timestamp
#self._transaction = None # the current transaction
self._ltid = None
self._lserial = None
# setup memcache
ltid, lserial = self._s3.lastCommit()
if ltid is None:
ltid, lserial = z64, z64
oid = self._s3.highestOid()
if oid is None:
oid = z64
self._memcache.setup(ltid, lserial, oid)
def __init__(self, name='Mapping Storage'):
BaseStorage.__init__(self, name)
# ._index maps an oid to a string s. s[:8] is the tid of the
# transaction that created oid's current state, and s[8:] is oid's
# current state.
self._index = {}
self._clear_temp()
self._ltid = None
def __init__(self, name='Mapping Storage'):
BaseStorage.__init__(self, name)
# ._index maps an oid to a string s. s[:8] is the tid of the
# transaction that created oid's current state, and s[8:] is oid's
# current state.
self._index = {}
self._clear_temp()
self._ltid = None
def __init__(self, name='Demo Storage', base=None, quota=None):
BaseStorage.__init__(self, name, base)
# We use a BTree because the items are sorted!
self._data = OOBTree.OOBTree()
self._index = {}
self._vindex = {}
self._base = base
self._size = 0
self._quota = quota
self._ltid = None
self._clear_temp()
if base is not None and base.versions():
raise POSException.StorageError(
"Demo base storage has version data")
def __init__(self, name='Demo Storage', base=None, quota=None):
BaseStorage.__init__(self, name, base)
# We use a BTree because the items are sorted!
self._data = OOBTree.OOBTree()
self._index = {}
self._vindex = {}
self._base = base
self._size = 0
self._quota = quota
self._ltid = None
self._clear_temp()
if base is not None and base.versions():
raise POSException.StorageError(
"Demo base storage has version data")
def __init__(self, name='TemporaryStorage'):
"""
_index -- mapping, oid => current serial
_referenceCount -- mapping, oid => count
_oreferences -- mapping, oid => sequence of referenced oids
_opickle -- mapping, oid => pickle
_tmp -- used by 'store' to collect changes before finalization
_conflict_cache -- cache of recently-written object revisions
_last_cache_gc -- last time that conflict cache was garbage collected
_recently_gc_oids -- a queue of recently GC'ed oids
_oid -- ???
_ltid -- serial of last committed transaction (required by ZEO)
_conflict_cache_gcevery -- interval for doing GC on conflict cache
_conflict_cache_maxage -- age at whic conflict cache items are GC'ed
"""
BaseStorage.__init__(self, name)
self._index = {}
self._referenceCount = {}
self._oreferences = {}
self._opickle = {}
self._tmp = []
self._conflict_cache = {}
self._last_cache_gc = 0
self._recently_gc_oids = [None for x in range(RECENTLY_GC_OIDS_LEN)]
self._oid = z64
self._ltid = z64
# Alow overrides for testing.
self._conflict_cache_gcevery = CONFLICT_CACHE_GCEVERY
self._conflict_cache_maxage = CONFLICT_CACHE_MAXAGE
def __init__(self, name='TemporaryStorage'):
"""
_index -- mapping, oid => current serial
_referenceCount -- mapping, oid => count
_oreferences -- mapping, oid => sequence of referenced oids
_opickle -- mapping, oid => pickle
_tmp -- used by 'store' to collect changes before finalization
_conflict_cache -- cache of recently-written object revisions
_last_cache_gc -- last time that conflict cache was garbage collected
_recently_gc_oids -- a queue of recently GC'ed oids
_oid -- ???
_ltid -- serial of last committed transaction (required by ZEO)
_conflict_cache_gcevery -- interval for doing GC on conflict cache
_conflict_cache_maxage -- age at whic conflict cache items are GC'ed
"""
BaseStorage.__init__(self, name)
self._index = {}
self._referenceCount = {}
self._oreferences = {}
self._opickle = {}
self._tmp = []
self._conflict_cache = {}
self._last_cache_gc = 0
self._recently_gc_oids = [None for x in range(RECENTLY_GC_OIDS_LEN)]
self._oid = z64
self._ltid = z64
# Alow overrides for testing.
self._conflict_cache_gcevery = CONFLICT_CACHE_GCEVERY
self._conflict_cache_maxage = CONFLICT_CACHE_MAXAGE
def __init__(self, name='TemporaryStorage'):
"""
index -- mapping of oid to current serial
referenceCount -- mapping of oid to count
oreferences -- mapping of oid to a sequence of its referenced oids
opickle -- mapping of oid to pickle
_tmp -- used by 'store' to collect changes before finalization
_conflict_cache -- cache of recently-written object revisions
_last_cache_gc -- last time that conflict cache was garbage collected
"""
BaseStorage.__init__(self, name)
self._index={}
self._referenceCount={}
self._oreferences={}
self._opickle={}
self._tmp = []
self._conflict_cache = {}
self._last_cache_gc = 0
self._oid = '\0\0\0\0\0\0\0\0'
def __init__(self, name='TemporaryStorage'):
"""
index -- mapping of oid to current serial
referenceCount -- mapping of oid to count
oreferences -- mapping of oid to a sequence of its referenced oids
opickle -- mapping of oid to pickle
_tmp -- used by 'store' to collect changes before finalization
_conflict_cache -- cache of recently-written object revisions
_last_cache_gc -- last time that conflict cache was garbage collected
_recently_gc_oids -- a queue of recently gc'ed oids
"""
BaseStorage.__init__(self, name)
self._index={}
self._referenceCount={}
self._oreferences={}
self._opickle={}
self._tmp = []
self._conflict_cache = {}
self._last_cache_gc = 0
self._recently_gc_oids = [None for x in range (RECENTLY_GC_OIDS_LEN)]
self._oid = '\0\0\0\0\0\0\0\0'
def new_oid(self):
if self._base is None:
return BaseStorage.new_oid(self)
else:
return self._base.new_oid()
def new_oid(self):
if self._base is None:
return BaseStorage.new_oid(self)
else:
return self._base.new_oid()
