83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/***
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Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: Async.Linux.hpp
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Date: 2022-4-12
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Author: Reece
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***/
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#pragma once
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namespace Aurora::IO::FS
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{
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struct LinuxAsyncFileTransaction;
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struct LinuxAsyncFileTransactionLoopSource;
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struct FileHandle
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{
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~FileHandle();
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bool Init(const AuString &path, EFileOpenMode openMode, bool directIO, EFileAdvisoryLockLevel lock);
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void Init(int read, int write);
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int readHandle {-1};
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int writeHandle {-1};
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AuString path;
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bool readOnly;
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bool directIO;
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};
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struct LinuxAsyncFileStream : public IAsyncFileStream
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{
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AuSPtr<IAsyncTransaction> NewTransaction() override;
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bool BlockingTruncate(AuUInt64 length) override;
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bool BlockingRead(AuUInt64 offset, const Memory::MemoryViewStreamWrite ¶meters) override;
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bool BlockingWrite(AuUInt64 offset, const Memory::MemoryViewStreamRead ¶meters) override;
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void Init(const AuSPtr<FileHandle> &handle);
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AuSPtr<FileHandle> GetHandle();
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private:
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AuSPtr<FileHandle> handle_;
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};
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struct LinuxAsyncFileTransaction : IAsyncTransaction, AuEnableSharedFromThis<LinuxAsyncFileTransaction>, Aurora::IO::UNIX::ASubmittable
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{
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~LinuxAsyncFileTransaction();
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bool Init(const AuSPtr<FileHandle> &handle);
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bool StartRead(AuUInt64 offset, const AuSPtr<AuMemoryViewWrite> &memoryView) override;
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bool StartWrite(AuUInt64 offset, const AuSPtr<AuMemoryViewRead> &memoryView) override;
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bool Failed() override;
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AuUInt GetOSErrorCode() override;
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bool Complete() override;
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AuUInt32 GetLastPacketLength() override;
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void SetCallback(const AuSPtr<IAsyncFinishedSubscriber> &sub) override;
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bool Wait(AuUInt32 timeout) override;
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AuSPtr<AuLoop::ILoopSource> NewLoopSource() override;
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void Reset() override;
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void DispatchCb();
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AuSPtr<FileHandle> GetFileHandle();
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virtual void LIOS_Process(AuUInt32 read, bool failure, int err, bool mark) override;
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private:
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AuSPtr<FileHandle> handle_;
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AuUInt32 lastAbstractOffset_ {}, lastFinishedStat_{};
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bool latch_ {};
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bool bTxFinished_ {};
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AuSPtr<IAsyncFinishedSubscriber> sub_;
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AuSPtr<LinuxAsyncFileTransactionLoopSource> loopSource_;
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int error_ {};
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bool hasError_ {};
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};
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} |