* Integrate with Arrow C data API. * Support Arrow dataset. * Support Arrow table. Co-authored-by: Xiaochang Wu <xiaochang.wu@intel.com> Co-authored-by: Jiaming Yuan <jm.yuan@outlook.com> Co-authored-by: Zhang Zhang <zhang.zhang@intel.com>
67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
/* 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.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cstdint>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define ARROW_FLAG_DICTIONARY_ORDERED 1
|
|
#define ARROW_FLAG_NULLABLE 2
|
|
#define ARROW_FLAG_MAP_KEYS_SORTED 4
|
|
|
|
struct ArrowSchema {
|
|
// Array type description
|
|
const char* format;
|
|
const char* name;
|
|
const char* metadata;
|
|
int64_t flags;
|
|
int64_t n_children;
|
|
struct ArrowSchema** children;
|
|
struct ArrowSchema* dictionary;
|
|
|
|
// Release callback
|
|
void (*release)(struct ArrowSchema*);
|
|
// Opaque producer-specific data
|
|
void* private_data;
|
|
};
|
|
|
|
struct ArrowArray {
|
|
// Array data description
|
|
int64_t length;
|
|
int64_t null_count;
|
|
int64_t offset;
|
|
int64_t n_buffers;
|
|
int64_t n_children;
|
|
const void** buffers;
|
|
struct ArrowArray** children;
|
|
struct ArrowArray* dictionary;
|
|
|
|
// Release callback
|
|
void (*release)(struct ArrowArray*);
|
|
// Opaque producer-specific data
|
|
void* private_data;
|
|
};
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|