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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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Public Module NetTransfer
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''' <summary>
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''' 从本地上传文件
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''' </summary>
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''' <param name="local"></param>
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''' <param name="destination"></param>
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''' <param name="remote"></param>
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Public Sub Upload(local As String, destination As String, remote As IPEndPoint)
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Using file As New IO.RemoteFileStream(destination, FileMode.OpenOrCreate, remote)
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Dim localFile As New FileStream(local, FileMode.Open)
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Call Transfer(localFile, file, 1024 * 1024)
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End Using
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End Sub
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Public Sub Transfer(source As Stream, target As Stream, bufLen As Integer)
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Dim buffer As Byte() = New Byte(bufLen - 1) {}
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Do While source.Position < source.Length
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Dim d As Integer = (source.Length - source.Position) - buffer.Length
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If d < 0 Then ' 注意：d 是负值的
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buffer = New Byte(-d - 1) {}
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End If
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Call source.Read(buffer, Scan0, buffer.Length)
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Call target.Write(buffer, Scan0, buffer.Length)
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Call target.Flush()
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Loop
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End Sub
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Public Sub Download(destination As String, local As String, remote As IPEndPoint)
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Using file As New IO.RemoteFileStream(destination, FileMode.OpenOrCreate, remote)
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Dim localFile As New FileStream(local, FileMode.OpenOrCreate)
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Call Transfer(file, localFile, 1024 * 1024)
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End Using
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End Sub
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End Module
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End Namespace |
