def sync(self):
self.s.sendall('S')
n = u32(recv(self.s, 4))
if n == 0:
packed_oids = ''
else:
packed_oids = recv(self.s, n*8)
return split_oids(packed_oids)
def load(self, oid):
self.s.sendall('L' + oid)
status = recv(self.s, 1)
if status == STATUS_OKAY:
pass
elif status == STATUS_INVALID:
raise ReadConflictError([oid])
elif status == STATUS_KEYERROR:
raise DurusKeyError(oid)
else:
raise ProtocolError, 'server returned invalid status %r' % status
rlen = u32(recv(self.s, 4))
record = recv(self.s, rlen)
return record
def end(self, handle_invalidations=None):
self.s.sendall('C')
n = u32(recv(self.s, 4))
if n != 0:
packed_oids = recv(self.s, n*8)
try:
handle_invalidations(split_oids(packed_oids))
except ConflictError:
self.s.sendall(p32(0)) # Tell server we are done.
raise
tdata = []
for oid, record in self.records.iteritems():
tdata.append(p32(8 + len(record)))
tdata.append(oid)
tdata.append(record)
tdata = ''.join(tdata)
self.s.sendall(p32(len(tdata)))
self.s.sendall(tdata)
self.records.clear()
status = recv(self.s, 1)
if status != STATUS_OKAY:
raise ProtocolError, 'server returned invalid status %r' % status
def pack(self):
self.s.sendall('P')
status = recv(self.s, 1)
if status != STATUS_OKAY:
raise ProtocolError, 'server returned invalid status %r' % status
def new_oid(self):
self.s.sendall('N')
oid = recv(self.s, 8)
return oid