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103 lines (88 loc) · 3.48 KB
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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.
#include "./arrow_types.h"
#include <arrow/ipc/reader.h>
#include <arrow/ipc/writer.h>
// [[arrow::export]]
r_vec_size ipc___Message__body_length(
const std::unique_ptr<arrow::ipc::Message>& message) {
return r_vec_size(message->body_length());
}
// [[arrow::export]]
std::shared_ptr<arrow::Buffer> ipc___Message__metadata(
const std::unique_ptr<arrow::ipc::Message>& message) {
return message->metadata();
}
// [[arrow::export]]
std::shared_ptr<arrow::Buffer> ipc___Message__body(
const std::unique_ptr<arrow::ipc::Message>& message) {
return message->body();
}
// [[arrow::export]]
r_vec_size ipc___Message__Verify(const std::unique_ptr<arrow::ipc::Message>& message) {
return r_vec_size(message->Verify());
}
// [[arrow::export]]
arrow::ipc::MessageType ipc___Message__type(
const std::unique_ptr<arrow::ipc::Message>& message) {
return message->type();
}
// [[arrow::export]]
bool ipc___Message__Equals(const std::unique_ptr<arrow::ipc::Message>& x,
const std::unique_ptr<arrow::ipc::Message>& y) {
return x->Equals(*y);
}
// [[arrow::export]]
std::shared_ptr<arrow::RecordBatch> ipc___ReadRecordBatch__Message__Schema(
const std::unique_ptr<arrow::ipc::Message>& message,
const std::shared_ptr<arrow::Schema>& schema) {
// TODO: perhaps this should come from the R side
arrow::ipc::DictionaryMemo memo;
auto batch = ValueOrStop(arrow::ipc::ReadRecordBatch(
*message, schema, &memo, arrow::ipc::IpcReadOptions::Defaults()));
return batch;
}
// [[arrow::export]]
std::shared_ptr<arrow::Schema> ipc___ReadSchema_InputStream(
const std::shared_ptr<arrow::io::InputStream>& stream) {
// TODO: promote to function argument
arrow::ipc::DictionaryMemo memo;
return ValueOrStop(arrow::ipc::ReadSchema(stream.get(), &memo));
}
// [[arrow::export]]
std::shared_ptr<arrow::Schema> ipc___ReadSchema_Message(
const std::unique_ptr<arrow::ipc::Message>& message) {
arrow::ipc::DictionaryMemo empty_memo;
return ValueOrStop(arrow::ipc::ReadSchema(*message, &empty_memo));
}
//--------- MessageReader
// [[arrow::export]]
std::shared_ptr<arrow::ipc::MessageReader> ipc___MessageReader__Open(
const std::shared_ptr<arrow::io::InputStream>& stream) {
return std::shared_ptr<arrow::ipc::MessageReader>(
arrow::ipc::MessageReader::Open(stream));
}
// [[arrow::export]]
std::shared_ptr<arrow::ipc::Message> ipc___MessageReader__ReadNextMessage(
const std::unique_ptr<arrow::ipc::MessageReader>& reader) {
return ValueOrStop(reader->ReadNextMessage());
}
// [[arrow::export]]
std::shared_ptr<arrow::ipc::Message> ipc___ReadMessage(
const std::shared_ptr<arrow::io::InputStream>& stream) {
return ValueOrStop(arrow::ipc::ReadMessage(stream.get()));
}