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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 *
cdef extern from "arrow/gpu/cuda_api.h" namespace "arrow::cuda" nogil:
cdef cppclass CCudaDeviceManager" arrow::cuda::CudaDeviceManager":
@staticmethod
CResult[CCudaDeviceManager*] Instance()
CResult[shared_ptr[CCudaContext]] GetContext(int gpu_number)
CResult[shared_ptr[CCudaContext]] GetSharedContext(int gpu_number,
void* handle)
CStatus AllocateHost(int device_number, int64_t nbytes,
shared_ptr[CCudaHostBuffer]* buffer)
int num_devices() const
cdef cppclass CCudaContext" arrow::cuda::CudaContext":
CResult[shared_ptr[CCudaBuffer]] Allocate(int64_t nbytes)
CResult[shared_ptr[CCudaBuffer]] View(uint8_t* data, int64_t nbytes)
CResult[shared_ptr[CCudaBuffer]] OpenIpcBuffer(
const CCudaIpcMemHandle& ipc_handle)
CStatus Synchronize()
int64_t bytes_allocated() const
const void* handle() const
int device_number() const
CResult[uintptr_t] GetDeviceAddress(uintptr_t addr)
cdef cppclass CCudaIpcMemHandle" arrow::cuda::CudaIpcMemHandle":
@staticmethod
CResult[shared_ptr[CCudaIpcMemHandle]] FromBuffer(
const void* opaque_handle)
CResult[shared_ptr[CBuffer]] Serialize(CMemoryPool* pool) const
cdef cppclass CCudaBuffer" arrow::cuda::CudaBuffer"(CBuffer):
CCudaBuffer(uint8_t* data, int64_t size,
const shared_ptr[CCudaContext]& context,
c_bool own_data=false, c_bool is_ipc=false)
CCudaBuffer(const shared_ptr[CCudaBuffer]& parent,
const int64_t offset, const int64_t size)
@staticmethod
CResult[shared_ptr[CCudaBuffer]] FromBuffer(shared_ptr[CBuffer] buf)
CStatus CopyToHost(const int64_t position, const int64_t nbytes,
void* out) const
CStatus CopyFromHost(const int64_t position, const void* data,
int64_t nbytes)
CStatus CopyFromDevice(const int64_t position, const void* data,
int64_t nbytes)
CStatus CopyFromAnotherDevice(const shared_ptr[CCudaContext]& src_ctx,
const int64_t position, const void* data,
int64_t nbytes)
CResult[shared_ptr[CCudaIpcMemHandle]] ExportForIpc()
shared_ptr[CCudaContext] context() const
cdef cppclass \
CCudaHostBuffer" arrow::cuda::CudaHostBuffer"(CMutableBuffer):
pass
cdef cppclass \
CCudaBufferReader" arrow::cuda::CudaBufferReader"(CBufferReader):
CCudaBufferReader(const shared_ptr[CBuffer]& buffer)
CResult[int64_t] Read(int64_t nbytes, void* buffer)
CResult[shared_ptr[CBuffer]] Read(int64_t nbytes)
cdef cppclass \
CCudaBufferWriter" arrow::cuda::CudaBufferWriter"(WritableFile):
CCudaBufferWriter(const shared_ptr[CCudaBuffer]& buffer)
CStatus Close()
CStatus Write(const void* data, int64_t nbytes)
CStatus WriteAt(int64_t position, const void* data, int64_t nbytes)
CStatus SetBufferSize(const int64_t buffer_size)
int64_t buffer_size()
int64_t num_bytes_buffered() const
CResult[shared_ptr[CCudaHostBuffer]] AllocateCudaHostBuffer(
int device_number, const int64_t size)
# Cuda prefix is added to avoid picking up arrow::cuda functions
# from arrow namespace.
CResult[shared_ptr[CCudaBuffer]] \
CudaSerializeRecordBatch" arrow::cuda::SerializeRecordBatch"\
(const CRecordBatch& batch,
CCudaContext* ctx)
CResult[shared_ptr[CRecordBatch]] \
CudaReadRecordBatch" arrow::cuda::ReadRecordBatch"\
(const shared_ptr[CSchema]& schema,
CDictionaryMemo* dictionary_memo,
const shared_ptr[CCudaBuffer]& buffer,
CMemoryPool* pool)
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