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third_party: initial import of arrow/abi.h
Needed for tarantool/tarantool-ee#712 NO_DOC=for enterprise edition NO_TEST=for enterprise edition NO_CHANGELOG=for enterprise edition
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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. | ||
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/// \file abi.h Arrow C Data Interface | ||
/// | ||
/// The Arrow C Data interface defines a very small, stable set | ||
/// of C definitions which can be easily copied into any project's | ||
/// source code and vendored to be used for columnar data interchange | ||
/// in the Arrow format. For non-C/C++ languages and runtimes, | ||
/// it should be almost as easy to translate the C definitions into | ||
/// the corresponding C FFI declarations. | ||
/// | ||
/// Applications and libraries can therefore work with Arrow memory | ||
/// without necessarily using the Arrow libraries or reinventing | ||
/// the wheel. Developers can choose between tight integration | ||
/// with the Arrow software project or minimal integration with | ||
/// the Arrow format only. | ||
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#pragma once | ||
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#include <stdint.h> | ||
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// Spec and documentation: https://arrow.apache.org/docs/format/CDataInterface.html | ||
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#ifdef __cplusplus | ||
extern "C" { | ||
#endif | ||
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#ifndef ARROW_C_DATA_INTERFACE | ||
#define ARROW_C_DATA_INTERFACE | ||
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#define ARROW_FLAG_DICTIONARY_ORDERED 1 | ||
#define ARROW_FLAG_NULLABLE 2 | ||
#define ARROW_FLAG_MAP_KEYS_SORTED 4 | ||
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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; | ||
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// Release callback | ||
void (*release)(struct ArrowSchema*); | ||
// Opaque producer-specific data | ||
void* private_data; | ||
}; | ||
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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; | ||
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// Release callback | ||
void (*release)(struct ArrowArray*); | ||
// Opaque producer-specific data | ||
void* private_data; | ||
}; | ||
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#endif // ARROW_C_DATA_INTERFACE | ||
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#ifndef ARROW_C_DEVICE_DATA_INTERFACE | ||
#define ARROW_C_DEVICE_DATA_INTERFACE | ||
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// Spec and Documentation: https://arrow.apache.org/docs/format/CDeviceDataInterface.html | ||
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// DeviceType for the allocated memory | ||
typedef int32_t ArrowDeviceType; | ||
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// CPU device, same as using ArrowArray directly | ||
#define ARROW_DEVICE_CPU 1 | ||
// CUDA GPU Device | ||
#define ARROW_DEVICE_CUDA 2 | ||
// Pinned CUDA CPU memory by cudaMallocHost | ||
#define ARROW_DEVICE_CUDA_HOST 3 | ||
// OpenCL Device | ||
#define ARROW_DEVICE_OPENCL 4 | ||
// Vulkan buffer for next-gen graphics | ||
#define ARROW_DEVICE_VULKAN 7 | ||
// Metal for Apple GPU | ||
#define ARROW_DEVICE_METAL 8 | ||
// Verilog simulator buffer | ||
#define ARROW_DEVICE_VPI 9 | ||
// ROCm GPUs for AMD GPUs | ||
#define ARROW_DEVICE_ROCM 10 | ||
// Pinned ROCm CPU memory allocated by hipMallocHost | ||
#define ARROW_DEVICE_ROCM_HOST 11 | ||
// Reserved for extension | ||
#define ARROW_DEVICE_EXT_DEV 12 | ||
// CUDA managed/unified memory allocated by cudaMallocManaged | ||
#define ARROW_DEVICE_CUDA_MANAGED 13 | ||
// unified shared memory allocated on a oneAPI non-partitioned device. | ||
#define ARROW_DEVICE_ONEAPI 14 | ||
// GPU support for next-gen WebGPU standard | ||
#define ARROW_DEVICE_WEBGPU 15 | ||
// Qualcomm Hexagon DSP | ||
#define ARROW_DEVICE_HEXAGON 16 | ||
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struct ArrowDeviceArray { | ||
// the Allocated Array | ||
// | ||
// the buffers in the array (along with the buffers of any | ||
// children) are what is allocated on the device. | ||
struct ArrowArray array; | ||
// The device id to identify a specific device | ||
int64_t device_id; | ||
// The type of device which can access this memory. | ||
ArrowDeviceType device_type; | ||
// An event-like object to synchronize on if needed. | ||
void* sync_event; | ||
// Reserved bytes for future expansion. | ||
int64_t reserved[3]; | ||
}; | ||
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#endif // ARROW_C_DEVICE_DATA_INTERFACE | ||
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#ifndef ARROW_C_STREAM_INTERFACE | ||
#define ARROW_C_STREAM_INTERFACE | ||
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struct ArrowArrayStream { | ||
// Callback to get the stream type | ||
// (will be the same for all arrays in the stream). | ||
// | ||
// Return value: 0 if successful, an `errno`-compatible error code otherwise. | ||
// | ||
// If successful, the ArrowSchema must be released independently from the stream. | ||
int (*get_schema)(struct ArrowArrayStream*, struct ArrowSchema* out); | ||
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// Callback to get the next array | ||
// (if no error and the array is released, the stream has ended) | ||
// | ||
// Return value: 0 if successful, an `errno`-compatible error code otherwise. | ||
// | ||
// If successful, the ArrowArray must be released independently from the stream. | ||
int (*get_next)(struct ArrowArrayStream*, struct ArrowArray* out); | ||
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// Callback to get optional detailed error information. | ||
// This must only be called if the last stream operation failed | ||
// with a non-0 return code. | ||
// | ||
// Return value: pointer to a null-terminated character array describing | ||
// the last error, or NULL if no description is available. | ||
// | ||
// The returned pointer is only valid until the next operation on this stream | ||
// (including release). | ||
const char* (*get_last_error)(struct ArrowArrayStream*); | ||
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// Release callback: release the stream's own resources. | ||
// Note that arrays returned by `get_next` must be individually released. | ||
void (*release)(struct ArrowArrayStream*); | ||
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// Opaque producer-specific data | ||
void* private_data; | ||
}; | ||
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#endif // ARROW_C_STREAM_INTERFACE | ||
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#ifndef ARROW_C_DEVICE_STREAM_INTERFACE | ||
#define ARROW_C_DEVICE_STREAM_INTERFACE | ||
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// Equivalent to ArrowArrayStream, but for ArrowDeviceArrays. | ||
// | ||
// This stream is intended to provide a stream of data on a single | ||
// device, if a producer wants data to be produced on multiple devices | ||
// then multiple streams should be provided. One per device. | ||
struct ArrowDeviceArrayStream { | ||
// The device that this stream produces data on. | ||
ArrowDeviceType device_type; | ||
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// Callback to get the stream schema | ||
// (will be the same for all arrays in the stream). | ||
// | ||
// Return value 0 if successful, an `errno`-compatible error code otherwise. | ||
// | ||
// If successful, the ArrowSchema must be released independently from the stream. | ||
// The schema should be accessible via CPU memory. | ||
int (*get_schema)(struct ArrowDeviceArrayStream* self, struct ArrowSchema* out); | ||
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// Callback to get the next array | ||
// (if no error and the array is released, the stream has ended) | ||
// | ||
// Return value: 0 if successful, an `errno`-compatible error code otherwise. | ||
// | ||
// If successful, the ArrowDeviceArray must be released independently from the stream. | ||
int (*get_next)(struct ArrowDeviceArrayStream* self, struct ArrowDeviceArray* out); | ||
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// Callback to get optional detailed error information. | ||
// This must only be called if the last stream operation failed | ||
// with a non-0 return code. | ||
// | ||
// Return value: pointer to a null-terminated character array describing | ||
// the last error, or NULL if no description is available. | ||
// | ||
// The returned pointer is only valid until the next operation on this stream | ||
// (including release). | ||
const char* (*get_last_error)(struct ArrowDeviceArrayStream* self); | ||
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// Release callback: release the stream's own resources. | ||
// Note that arrays returned by `get_next` must be individually released. | ||
void (*release)(struct ArrowDeviceArrayStream* self); | ||
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// Opaque producer-specific data | ||
void* private_data; | ||
}; | ||
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#endif // ARROW_C_DEVICE_STREAM_INTERFACE | ||
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#ifdef __cplusplus | ||
} | ||
#endif |