def __init__(self, datadir, offsetcache, buffsz = 32):
XidLruCache.__init__(self, datadir, MultixactMemPage, buffsz)
self.offsetcache = offsetcache
self.MULTIXACT_MEMBERGROUP_SIZE = typesize['TransactionId'] * self.MULTIXACT_MEMBERS_PER_MEMBERGROUP + self.MULTIXACT_FLAGBYTES_PER_GROUP
self.MULTIXACT_MEMBERGROUPS_PER_PAGE = (self.blcksz / self.MULTIXACT_MEMBERGROUP_SIZE)
self.MULTIXACT_MEMBERS_PER_PAGE = (self.MULTIXACT_MEMBERGROUPS_PER_PAGE * self.MULTIXACT_MEMBERS_PER_MEMBERGROUP)
def __init__(self, datadir, buffsz = 32):
XidLruCache.__init__(self, datadir, ClogPage, buffsz)
self.CLOG_XACTS_PER_PAGE = self.blcksz * self.CLOG_XACTS_PER_BYTE
self.CLOG_XACT_BITMASK = ((1 << self.CLOG_BITS_PER_XACT) - 1)
def __init__(self, datadir, buffsz = 32):
XidLruCache.__init__(self, datadir, SubTransPage, buffsz)
self.SUBTRANS_XACTS_PER_PAGE = self.blcksz / typesize['TransactionId']
def __init__(self, datadir, buffsz = 32):
XidLruCache.__init__(self, datadir, MultixactOffPage, buffsz)
self.MULTIXACT_OFFSETS_PER_PAGE = self.blcksz / typesize['MultiXactOffset']
def __init__(self, datadir, buffsz=32):
XidLruCache.__init__(self, datadir, ClogPage, buffsz)
self.CLOG_XACTS_PER_PAGE = self.blcksz * self.CLOG_XACTS_PER_BYTE
self.CLOG_XACT_BITMASK = ((1 << self.CLOG_BITS_PER_XACT) - 1)
def __init__(self, datadir, buffsz=32):
XidLruCache.__init__(self, datadir, SubTransPage, buffsz)
self.SUBTRANS_XACTS_PER_PAGE = self.blcksz / typesize['TransactionId']
