72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
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/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author raver119@gmail.com
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//
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#include <dll.h>
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#include <array/DataBuffer.h>
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#include <array/DataType.h>
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#include <memory>
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#ifndef LIBND4J_INTEROPDATABUFFER_H
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#define LIBND4J_INTEROPDATABUFFER_H
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namespace nd4j {
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/**
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* This class is a wrapper for DataBuffer, suitable for sharing DataBuffer between front-end and back-end languages
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*/
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class ND4J_EXPORT InteropDataBuffer {
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private:
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std::shared_ptr<DataBuffer> _dataBuffer;
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uint64_t _offset = 0;
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public:
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InteropDataBuffer(InteropDataBuffer &dataBuffer, uint64_t length, uint64_t offset);
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InteropDataBuffer(std::shared_ptr<DataBuffer> databuffer);
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InteropDataBuffer(size_t elements, nd4j::DataType dtype, bool allocateBoth);
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~InteropDataBuffer() = default;
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#ifndef __JAVACPP_HACK__
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std::shared_ptr<DataBuffer> getDataBuffer() const;
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std::shared_ptr<DataBuffer> dataBuffer();
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#endif
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void* primary() const;
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void* special() const;
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uint64_t offset() const ;
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void setOffset(uint64_t offset);
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void setPrimary(void* ptr, size_t length);
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void setSpecial(void* ptr, size_t length);
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void expand(size_t newlength);
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int deviceId() const;
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void setDeviceId(int deviceId);
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static void registerSpecialUse(const std::vector<const InteropDataBuffer*>& writeList, const std::vector<const InteropDataBuffer*>& readList);
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static void prepareSpecialUse(const std::vector<const InteropDataBuffer*>& writeList, const std::vector<const InteropDataBuffer*>& readList, bool synchronizeWritables = false);
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static void registerPrimaryUse(const std::vector<const InteropDataBuffer*>& writeList, const std::vector<const InteropDataBuffer*>& readList);
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static void preparePrimaryUse(const std::vector<const InteropDataBuffer*>& writeList, const std::vector<const InteropDataBuffer*>& readList, bool synchronizeWritables = false);
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};
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}
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#endif //LIBND4J_INTEROPDATABUFFER_H
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