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48 lines
1.7 KiB
48 lines
1.7 KiB
Imports System.IO
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Imports System.Text.RegularExpressions
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Imports Microsoft.VisualBasic.Net
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Imports Microsoft.VisualBasic.Net.Protocols
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Imports Microsoft.VisualBasic.Net.Protocols.Reflection
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Imports Microsoft.VisualBasic.Serialization
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Namespace FileSystem.Protocols
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''' <summary>
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'''
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''' </summary>
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Public Module API
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Public ReadOnly Property ProtocolEntry As Long =
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New Protocol(GetType(FileSystemAPI)).EntryPoint
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Public Function OpenHandle(file As String, mode As FileMode, access As FileAccess) As RequestStream
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Dim params As New FileOpen With {
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.FileName = file,
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.Mode = mode,
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.Access = access
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}
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Return RequestStream.CreateProtocol(ProtocolEntry, FileSystemAPI.OpenHandle, params)
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End Function
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''' <summary>
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'''
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''' </summary>
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''' <param name="pos">-100表示set</param>
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''' <param name="handle"></param>
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''' <returns></returns>
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Public Function GetSetReadPosition(pos As Long, handle As FileHandle) As RequestStream
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Dim args As New FileStreamPosition(handle) With {.Position = pos}
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Return RequestStream.CreateProtocol(ProtocolEntry, FileSystemAPI.FilePosition, args)
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End Function
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''' <summary>
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'''
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''' </summary>
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''' <param name="handle"></param>
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''' <returns></returns>
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Public Function GetSetLength(length As Long, handle As FileHandle) As RequestStream
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Dim args As New FileStreamPosition(handle) With {.Position = length}
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Return RequestStream.CreateProtocol(ProtocolEntry, FileSystemAPI.FileStreamLength, args)
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End Function
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End Module
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End Namespace |