Spaces:
Running
Running
| # Copyright DataStax, Inc. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| from cassandra.buffer cimport Buffer | |
| cdef class Deserializer: | |
| # The cqltypes._CassandraType corresponding to this deserializer | |
| cdef object cqltype | |
| # String may be empty, whereas other values may not be. | |
| # Other values may be NULL, in which case the integer length | |
| # of the binary data is negative. However, non-string types | |
| # may also return a zero length for legacy reasons | |
| # (see http://code.metager.de/source/xref/apache/cassandra/doc/native_protocol_v3.spec | |
| # paragraph 6) | |
| cdef bint empty_binary_ok | |
| cdef deserialize(self, Buffer *buf, int protocol_version) | |
| # cdef deserialize(self, CString byts, protocol_version) | |
| cdef inline object from_binary(Deserializer deserializer, | |
| Buffer *buf, | |
| int protocol_version): | |
| if buf.size < 0: | |
| return None | |
| elif buf.size == 0 and not deserializer.empty_binary_ok: | |
| return _ret_empty(deserializer, buf.size) | |
| else: | |
| return deserializer.deserialize(buf, protocol_version) | |
| cdef _ret_empty(Deserializer deserializer, Py_ssize_t buf_size) | |