cpp/src/util.rs

/*
 * 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.
 */
use crate::ffi;
use arrow::datatypes::SchemaRef;
use arrow_array::ffi_stream::FFI_ArrowArrayStream;
use arrow_array::{RecordBatch, RecordBatchIterator};

pub fn create_raw_pointer_for_record_batches(
    batches: Vec<RecordBatch>,
    schema: SchemaRef,
) -> *mut ffi::ArrowArrayStream {
    let batches = batches.into_iter().map(Ok);
    let batch_iterator = RecordBatchIterator::new(batches, schema);
    let ffi_array_stream = FFI_ArrowArrayStream::new(Box::new(batch_iterator));
    let raw_ptr = Box::into_raw(Box::new(ffi_array_stream));
    raw_ptr as *mut ffi::ArrowArrayStream
}