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dbd9a83b0d
* feat: Integrate GPUDirect Storage (GDS) into Executor API Squash of several dev commits Signed-off-by: Dom Brown <3886319+DomBrown@users.noreply.github.com>
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*
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* Copyright (c) 2022-2024, NVIDIA CORPORATION. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <NvInferRuntime.h>
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#include <cufile.h>
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#include <filesystem>
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#include <fstream>
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class StreamReader final : public nvinfer1::IStreamReader
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{
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public:
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StreamReader(std::filesystem::path fp);
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virtual ~StreamReader();
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int64_t read(void* destination, int64_t nbBytes) final;
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private:
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std::ifstream mFile;
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};
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class GDSStreamReader final : public nvinfer1::IStreamReaderV2
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{
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public:
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explicit GDSStreamReader(std::filesystem::path const& filePath);
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virtual ~GDSStreamReader();
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void close();
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[[nodiscard]] bool isOpen() const;
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bool open(std::string const& filepath);
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int64_t read(void* dest, int64_t bytes, cudaStream_t stream) noexcept final;
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void reset();
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bool seek(int64_t offset, nvinfer1::SeekPosition where) noexcept final;
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private:
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bool initializeDriver();
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void* mCuFileLibHandle{};
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CUfileHandle_t mFileHandle{nullptr};
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bool mDriverInitialized{false};
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int32_t mFd{-1};
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int64_t mCursor{0};
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int64_t mFileSize{0};
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CUfileError_t (*cuFileDriverOpen)(){};
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CUfileError_t (*cuFileHandleRegister)(CUfileHandle_t*, CUfileDescr_t*){};
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CUfileError_t (*cuFileHandleDeregister)(CUfileHandle_t){};
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CUfileError_t (*cuFileDriverClose)(){};
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ssize_t (*cuFileRead)(CUfileHandle_t, void*, size_t, int64_t, int64_t){};
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};
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