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* issue-2086: introduce IFileIOServiceProvider (#2117) * issue-2086: use multiple aio services (#2126) * retrying EAGAIN from io_setup in vhost-server (#2143)
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114 changes: 114 additions & 0 deletions
114
cloud/blockstore/libs/service_local/file_io_service_provider.cpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,114 @@ | ||
| #include "file_io_service_provider.h" | ||
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| #include <cloud/storage/core/libs/common/file_io_service.h> | ||
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| #include <util/generic/algorithm.h> | ||
| #include <util/generic/string.h> | ||
| #include <util/generic/vector.h> | ||
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| namespace NCloud::NBlockStore::NServer { | ||
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| namespace { | ||
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| //////////////////////////////////////////////////////////////////////////////// | ||
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| class TFileIOServiceProvider final | ||
| : public IFileIOServiceProvider | ||
| { | ||
| private: | ||
| const ui32 PathsPerServices; | ||
| std::function<IFileIOServicePtr()> Factory; | ||
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| TVector<std::pair<TString, size_t>> PathToFileIOIndex; | ||
| TVector<IFileIOServicePtr> FileIOs; | ||
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| public: | ||
| explicit TFileIOServiceProvider( | ||
| ui32 pathsPerServices, | ||
| std::function<IFileIOServicePtr()> factory) | ||
| : PathsPerServices{Max(pathsPerServices, 1U)} | ||
| , Factory(std::move(factory)) | ||
| {} | ||
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| void Start() override | ||
| {} | ||
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| void Stop() override | ||
| { | ||
| for (auto& fileIO: FileIOs) { | ||
| fileIO->Stop(); | ||
| } | ||
| } | ||
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| IFileIOServicePtr CreateFileIOService(TStringBuf filePath) override | ||
| { | ||
| if (auto* p = FindIfPtr( | ||
| PathToFileIOIndex, | ||
| [=](const auto& p) { return p.first == filePath; })) | ||
| { | ||
| return FileIOs[p->second]; | ||
| } | ||
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| if (PathToFileIOIndex.size() + 1 > PathsPerServices * FileIOs.size()) { | ||
| auto service = Factory(); | ||
| Y_DEBUG_ABORT_UNLESS(service); | ||
| service->Start(); | ||
| FileIOs.push_back(service); | ||
| } | ||
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| PathToFileIOIndex.emplace_back(filePath, FileIOs.size() - 1); | ||
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| return FileIOs.back(); | ||
| } | ||
| }; | ||
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| //////////////////////////////////////////////////////////////////////////////// | ||
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| struct TSingleFileIOServiceProvider final | ||
| : IFileIOServiceProvider | ||
| { | ||
| IFileIOServicePtr FileIO; | ||
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| explicit TSingleFileIOServiceProvider( | ||
| IFileIOServicePtr fileIO) | ||
| : FileIO{std::move(fileIO)} | ||
| {} | ||
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| void Start() override | ||
| { | ||
| FileIO->Start(); | ||
| } | ||
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| void Stop() override | ||
| { | ||
| FileIO->Stop(); | ||
| } | ||
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| IFileIOServicePtr CreateFileIOService(TStringBuf filePath) override | ||
| { | ||
| Y_UNUSED(filePath); | ||
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| return FileIO; | ||
| } | ||
| }; | ||
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| } // namespace | ||
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| //////////////////////////////////////////////////////////////////////////////// | ||
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| IFileIOServiceProviderPtr CreateSingleFileIOServiceProvider( | ||
| IFileIOServicePtr fileIO) | ||
| { | ||
| return std::make_shared<TSingleFileIOServiceProvider>(std::move(fileIO)); | ||
| } | ||
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| IFileIOServiceProviderPtr CreateFileIOServiceProvider( | ||
| ui32 filePathsPerServices, | ||
| std::function<IFileIOServicePtr()> factory) | ||
| { | ||
| return std::make_shared<TFileIOServiceProvider>( | ||
| filePathsPerServices, | ||
| std::move(factory)); | ||
| } | ||
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| } // namespace NCloud::NBlockStore::NServer |
31 changes: 31 additions & 0 deletions
31
cloud/blockstore/libs/service_local/file_io_service_provider.h
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| #pragma once | ||
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| #include "public.h" | ||
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| #include <cloud/storage/core/libs/common/public.h> | ||
| #include <cloud/storage/core/libs/common/startable.h> | ||
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| #include <util/generic/strbuf.h> | ||
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| #include <functional> | ||
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| namespace NCloud::NBlockStore::NServer { | ||
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| //////////////////////////////////////////////////////////////////////////////// | ||
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| struct IFileIOServiceProvider | ||
| : IStartable | ||
| { | ||
| virtual IFileIOServicePtr CreateFileIOService(TStringBuf filePath) = 0; | ||
| }; | ||
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| //////////////////////////////////////////////////////////////////////////////// | ||
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| IFileIOServiceProviderPtr CreateSingleFileIOServiceProvider( | ||
| IFileIOServicePtr fileIO); | ||
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| IFileIOServiceProviderPtr CreateFileIOServiceProvider( | ||
| ui32 filePathsPerServices, | ||
| std::function<IFileIOServicePtr()> factory); | ||
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| } // namespace NCloud::NBlockStore::NServer |
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