def _write_transaction(self, fp, records, index):
fp.seek(0, 2)
for i, (oid, record) in enumerate(records):
full_record = self._disk_format(record)
index[oid] = fp.tell()
fp.write(p32(len(full_record)))
fp.write(full_record)
if i % self._PACK_INCREMENT == 0:
yield None
fp.write(p32(0)) # terminator
def test_check_p32_u32(self):
for x in range(3):
assert len(p32(x)) == 4
assert x == u32(p32(x))
def pack_record(oid, data, refs):
"""(oid:str, data:str, refs:str) -> record:str
"""
return ''.join([oid, p32(len(data)), data, refs])
