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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
# distutils: language = c++
from pyarrow.includes.libarrow cimport (CCompressionType, CStatus, CTable,
COutputStream, CResult, shared_ptr,
vector, CRandomAccessFile, CSchema,
c_string)
cdef extern from "arrow/ipc/api.h" namespace "arrow::ipc" nogil:
int kFeatherV1Version" arrow::ipc::feather::kFeatherV1Version"
int kFeatherV2Version" arrow::ipc::feather::kFeatherV2Version"
cdef cppclass CFeatherProperties" arrow::ipc::feather::WriteProperties":
int version
int chunksize
CCompressionType compression
int compression_level
CStatus WriteFeather" arrow::ipc::feather::WriteTable" \
(const CTable& table, COutputStream* out,
CFeatherProperties properties)
cdef cppclass CFeatherReader" arrow::ipc::feather::Reader":
@staticmethod
CResult[shared_ptr[CFeatherReader]] Open(
const shared_ptr[CRandomAccessFile]& file)
int version()
shared_ptr[CSchema] schema()
CStatus Read(shared_ptr[CTable]* out)
CStatus Read(const vector[int] indices, shared_ptr[CTable]* out)
CStatus Read(const vector[c_string] names, shared_ptr[CTable]* out)
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