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#Region "Microsoft.VisualBasic::78fec5ccb84cf89ccc5daed805339cae, Microsoft.VisualBasic.Core\Serialization\BinaryDumping\Buffer.vb"
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#End Region
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Imports Microsoft.VisualBasic.Language
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Imports Microsoft.VisualBasic.Linq
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Imports Microsoft.VisualBasic.Net.Protocols
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Namespace Serialization.BinaryDumping
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Public Structure Buffer : Implements ISerializable
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Dim Length As Long
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Dim buffer As Byte()
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Sub New(buf As Byte())
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Length = buf.Length
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buffer = buf
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End Sub
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Public ReadOnly Property TotalBytes As Long
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Get
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Return Length + RawStream.INT64
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End Get
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End Property
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Public Overrides Function ToString() As String
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Return $"{Length} bytes..."
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End Function
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Public Function Serialize() As Byte() Implements ISerializable.Serialize
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Dim buffer As Byte() = New Byte(TotalBytes - 1) {}
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Call Array.ConstrainedCopy(BitConverter.GetBytes(Length), Scan0, buffer, Scan0, RawStream.INT64)
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Call Array.ConstrainedCopy(Me.buffer, Scan0, buffer, RawStream.INT64, Me.buffer.Length)
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Return buffer
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End Function
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End Structure
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Public Delegate Function IGetBuffer(Of T)(x As T) As Byte()
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Public Delegate Function IGetObject(Of T)(buf As Byte()) As T
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Public Module BufferAPI
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Public Function CreateBuffer(Of T)(source As IEnumerable(Of T), getBuf As IGetBuffer(Of T)) As Byte()
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Dim array As Buffer() = source.Select(Function(x) New Buffer(getBuf(x))).ToArray
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Dim buffer As Byte() = New Byte(array.Sum(Function(x) x.TotalBytes) - 1L) {}
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Dim i As Integer
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For Each x As Buffer In array
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Call System.Array.ConstrainedCopy(x.Serialize, Scan0, buffer, i, x.TotalBytes)
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i += x.TotalBytes
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Next
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Return buffer
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End Function
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Public Iterator Function GetBuffer(Of T)(raw As Byte(), getObj As IGetObject(Of T)) As IEnumerable(Of T)
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Dim length As Byte() = New Byte(RawStream.INT64 - 1) {}
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Dim l As Long
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Dim i As int = 0
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Dim temp As Byte()
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Dim x As T
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Do While True
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Call Array.ConstrainedCopy(raw, i + RawStream.INT64, length, Scan0, RawStream.INT64)
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l = BitConverter.ToInt64(length, Scan0)
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temp = New Byte(l - 1) {}
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Call Array.ConstrainedCopy(raw, i + l, temp, Scan0, l)
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x = getObj(temp)
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Yield x
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If i >= raw.Length - 1 Then
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Exit Do
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End If
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Loop
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End Function
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End Module
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End Namespace
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