wehub-resource-sync
121 lines
4.2 KiB
C++
121 lines
4.2 KiB
C++
/* ******************************************************************************
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*
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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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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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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 <array/DataBuffer.h>
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#include <array/DataType.h>
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#include <system/common.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 sd {
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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 SD_LIB_EXPORT InteropDataBuffer {
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private:
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DataBuffer *_dataBuffer = nullptr;
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bool owner;
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DataType _dataType = DataType::UNKNOWN;
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public:
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size_t _cachedLenInBytes = 0;
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void* _cachedPrimaryPtr = nullptr; // Cached for deallocation tracking
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void* _cachedSpecialPtr = nullptr; // Cached for deallocation tracking
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bool _closed = false;
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bool isConstant = false;
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InteropDataBuffer(InteropDataBuffer *dataBuffer, uint64_t length);
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InteropDataBuffer(DataBuffer * databuffer);
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InteropDataBuffer(size_t lenInBytes, DataType dtype, bool allocateBoth);
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~InteropDataBuffer() {
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// Mark as closed FIRST to prevent any concurrent access
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_closed = true;
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// If we own the DataBuffer and it's not constant, clean it up
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if (owner && !isConstant && _dataBuffer != nullptr) {
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delete _dataBuffer;
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}
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// Always null out the pointer to prevent use-after-free
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_dataBuffer = nullptr;
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}
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#ifndef __JAVACPP_HACK__
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DataBuffer * getDataBuffer() const;
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DataBuffer * dataBuffer();
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// In InteropDataBuffer class, add these public methods:
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// Check if the underlying DataBuffer pointer is still valid
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// by checking if it's non-null
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bool hasValidDataBuffer() const { return _dataBuffer != nullptr; }
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// Get the DataBuffer pointer directly without validation
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DataBuffer* getDataBufferDirect() const { return _dataBuffer; }
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// Mark the DataBuffer as invalid (set to null)
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void invalidateDataBuffer() { _dataBuffer = nullptr; }
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bool isOwner() const { return owner; }
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// Safe accessor that doesn't touch other fields
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DataBuffer* getDataBufferUnsafe() const {
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return _dataBuffer;
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}
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#endif
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void printDbAllocationTrace();
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void *primary() const;
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void *special() const;
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void markConstant(bool reallyConstant) {
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isConstant = reallyConstant;
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dataBuffer()->markConstant(reallyConstant);
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}
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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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//updates whether the buffer is the owner of its associated buffers or not.
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void markOwner(bool owner);
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int useCount() const;
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static void registerSpecialUse(const std::vector<const InteropDataBuffer *> &writeList,
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const std::vector<const InteropDataBuffer *> &readList);
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static void prepareSpecialUse(const std::vector<const InteropDataBuffer *> &writeList,
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const std::vector<const InteropDataBuffer *> &readList,
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bool synchronizeWritables = false);
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static void registerPrimaryUse(const std::vector<const InteropDataBuffer *> &writeList,
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const std::vector<const InteropDataBuffer *> &readList);
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static void preparePrimaryUse(const std::vector<const InteropDataBuffer *> &writeList,
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const std::vector<const InteropDataBuffer *> &readList,
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bool synchronizeWritables = false);
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};
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} // namespace sd
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#endif // LIBND4J_INTEROPDATABUFFER_H
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