| 1 | #Region "Microsoft.VisualBasic::ab3c4c8a2c451e14dce950d548490d07, Microsoft.VisualBasic.Core\ApplicationServices\Parallel\MMFProtocol\MMFSocket.vb" |
| 2 | |
| 3 | ' Author: |
| 4 | ' |
| 5 | ' asuka (amethyst.asuka@gcmodeller.org) |
| 6 | ' xie (genetics@smrucc.org) |
| 7 | ' xieguigang (xie.guigang@live.com) |
| 8 | ' |
| 9 | ' Copyright (c) 2018 GPL3 Licensed |
| 10 | ' |
| 11 | ' |
| 12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
| 13 | ' |
| 14 | ' |
| 15 | ' This program is free software: you can redistribute it and/or modify |
| 16 | ' it under the terms of the GNU General Public License as published by |
| 17 | ' the Free Software Foundation, either version 3 of the License, or |
| 18 | ' (at your option) any later version. |
| 19 | ' |
| 20 | ' This program is distributed in the hope that it will be useful, |
| 21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | ' GNU General Public License for more details. |
| 24 | ' |
| 25 | ' You should have received a copy of the GNU General Public License |
| 26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 27 | |
| 28 | |
| 29 | |
| 30 | ' /********************************************************************************/ |
| 31 | |
| 32 | ' Summaries: |
| 33 | |
| 34 | ' Delegate Sub |
| 35 | ' |
| 36 | ' |
| 37 | ' Delegate Sub |
| 38 | ' |
| 39 | ' |
| 40 | ' Class MMFSocket |
| 41 | ' |
| 42 | ' Properties: NewMessageCallBack, URI |
| 43 | ' |
| 44 | ' Constructor: (+2 Overloads) Sub New |
| 45 | ' |
| 46 | ' Function: CreateObject, getMessage, Ping, ReadData, ReadString |
| 47 | ' SendMessage, ToString, WriteMessage |
| 48 | ' |
| 49 | ' Sub: __dataArrival, (+2 Overloads) Dispose, (+3 Overloads) SendMessage |
| 50 | ' |
| 51 | ' |
| 52 | ' |
| 53 | ' |
| 54 | ' |
| 55 | ' /********************************************************************************/ |
| 56 | |
| 57 | #End Region |
| 58 | |
| 59 | Imports Microsoft.VisualBasic.CommandLine.Reflection |
| 60 | Imports Microsoft.VisualBasic.Net.Protocols |
| 61 | Imports Microsoft.VisualBasic.Parallel.MMFProtocol.MapStream |
| 62 | Imports Microsoft.VisualBasic.Text |
| 63 | |
| 64 | Namespace Parallel.MMFProtocol |
| 65 | |
| 66 | ''' <summary> |
| 67 | ''' 客户端接受到的数据需要经过反序列化解码方能读取 |
| 68 | ''' </summary> |
| 69 | ''' <param name="data"></param> |
| 70 | ''' <remarks></remarks> |
| 71 | Public Delegate Sub DataArrival(data As Byte()) |
| 72 | ''' <summary> |
| 73 | ''' |
| 74 | ''' </summary> |
| 75 | ''' <param name="message">UTF8 string</param> |
| 76 | Public Delegate Sub ReadNewMessage(message As String) |
| 77 | |
| 78 | ''' <summary> |
| 79 | ''' MMFProtocol socket object for the inter-process communication on the localhost, this can be using for the data exchange between two process. |
| 80 | ''' </summary> |
| 81 | ''' <remarks></remarks> |
| 82 | <[Namespace]("MMFSocket", Description:="MMFProtocol socket object for the inter-process communication on the localhost, this can be using for the data exchange between two process.")> |
| 83 | Public Class MMFSocket : Implements IDisposable |
| 84 | |
| 85 | Dim _MMFReader As MSIOReader, _MMFWriter As MSWriter |
| 86 | Dim _UpdateFlag As Long |
| 87 | Dim _callBacks As DataArrival |
| 88 | |
| 89 | Public Property NewMessageCallBack As ReadNewMessage |
| 90 | |
| 91 | Public ReadOnly Property URI As String |
| 92 | |
| 93 | ''' <summary> |
| 94 | ''' |
| 95 | ''' </summary> |
| 96 | ''' <param name="uri"></param> |
| 97 | ''' <param name="chunkSize">默认的区块大小为100KB,这个对于一般的小文本传输已经足够了</param> |
| 98 | Sub New(uri As String, Optional chunkSize As Long = 100 * 1024) |
| 99 | _MMFWriter = New MSWriter(uri, chunkSize) |
| 100 | _MMFReader = New MSIOReader(uri, AddressOf __dataArrival, chunkSize) |
| 101 | _URI = uri |
| 102 | End Sub |
| 103 | |
| 104 | Public Const MMF_PROTOCOL As String = "mmf://" |
| 105 | |
| 106 | ''' <summary> |
| 107 | ''' |
| 108 | ''' </summary> |
| 109 | ''' <param name="uri"></param> |
| 110 | ''' <param name="dataArrivals"> |
| 111 | ''' Public Delegate Sub <see cref="__dataArrival"/>(byteData As <see cref="System.Byte"/>()) |
| 112 | ''' 会优先于事件<see cref="__dataArrival"></see>的发生</param> |
| 113 | ''' <remarks></remarks> |
| 114 | Sub New(uri As String, dataArrivals As DataArrival) |
| 115 | Call Me.New(uri) |
| 116 | _callBacks = dataArrivals |
| 117 | End Sub |
| 118 | |
| 119 | Public Sub SendMessage(byteData As Byte()) |
| 120 | Me._UpdateFlag = _MMFReader.Read.udtBadge + 1 |
| 121 | |
| 122 | Dim bytData As Byte() = New MMFStream With { |
| 123 | .byteData = byteData, |
| 124 | .udtBadge = Me._UpdateFlag |
| 125 | }.Serialize |
| 126 | |
| 127 | Call _MMFReader.Update(Me._UpdateFlag) |
| 128 | Call _MMFWriter.WriteStream(bytData) |
| 129 | End Sub |
| 130 | |
| 131 | ''' <summary> |
| 132 | ''' 直接从映射文件之中读取数据 |
| 133 | ''' </summary> |
| 134 | ''' <returns></returns> |
| 135 | Public Function ReadData() As Byte() |
| 136 | Return _MMFReader.Read.byteData |
| 137 | End Function |
| 138 | |
| 139 | Public Sub SendMessage(raw As RawStream) |
| 140 | Call SendMessage(raw.Serialize) |
| 141 | End Sub |
| 142 | |
| 143 | ''' <summary> |
| 144 | ''' |
| 145 | ''' </summary> |
| 146 | ''' <param name="s"><see cref="System.Text.Encoding.UTF8"/></param> |
| 147 | Public Sub SendMessage(s As String) |
| 148 | Dim buf As Byte() = System.Text.Encoding.UTF8.GetBytes(s) |
| 149 | Call Me.SendMessage(buf) |
| 150 | End Sub |
| 151 | |
| 152 | Public Function ReadString() As String |
| 153 | Dim buf As Byte() = ReadData() |
| 154 | Dim s As String = System.Text.Encoding.UTF8.GetString(buf) |
| 155 | Return s |
| 156 | End Function |
| 157 | |
| 158 | #Region "IDisposable Support" |
| 159 | Private disposedValue As Boolean ' To detect redundant calls |
| 160 | |
| 161 | ' IDisposable |
| 162 | Protected Overridable Sub Dispose(disposing As Boolean) |
| 163 | If Not Me.disposedValue Then |
| 164 | If disposing Then |
| 165 | ' TODO: dispose managed state (managed objects). |
| 166 | Call Me._MMFWriter.Free |
| 167 | Call Me._MMFReader.Free |
| 168 | End If |
| 169 | |
| 170 | ' TODO: free unmanaged resources (unmanaged objects) and override Finalize() below. |
| 171 | ' TODO: set large fields to null. |
| 172 | End If |
| 173 | Me.disposedValue = True |
| 174 | End Sub |
| 175 | |
| 176 | ' TODO: override Finalize() only if Dispose( disposing As Boolean) above has code to free unmanaged resources. |
| 177 | 'Protected Overrides Sub Finalize() |
| 178 | ' ' Do not change this code. Put cleanup code in Dispose( disposing As Boolean) above. |
| 179 | ' Dispose(False) |
| 180 | ' MyBase.Finalize() |
| 181 | 'End Sub |
| 182 | |
| 183 | ' This code added by Visual Basic to correctly implement the disposable pattern. |
| 184 | Public Sub Dispose() Implements IDisposable.Dispose |
| 185 | ' Do not change this code. Put cleanup code in Dispose(disposing As Boolean) above. |
| 186 | Dispose(True) |
| 187 | GC.SuppressFinalize(Me) |
| 188 | End Sub |
| 189 | #End Region |
| 190 | |
| 191 | Public Overrides Function ToString() As String |
| 192 | Return $"{MMF_PROTOCOL}{_URI}" |
| 193 | End Function |
| 194 | |
| 195 | Public Function Ping() As Boolean |
| 196 | Call SendMessage(s:=_PING_MESSAGE) |
| 197 | Call Threading.Thread.Sleep(100) |
| 198 | |
| 199 | If PingResult = True Then |
| 200 | PingResult = False |
| 201 | Return True |
| 202 | Else |
| 203 | Return False |
| 204 | End If |
| 205 | End Function |
| 206 | |
| 207 | Private Const _PING_MESSAGE As String = "PINT_REQUEST::{BAB0B3FA-C3F3-42F2-A577-9AF57EBDB9C7}" |
| 208 | Private Const _PING_RETURNS As String = "PING_RETURNS::{BAB0B3FA-C3F3-42F2-A577-9AF57EBDB9C7}" |
| 209 | |
| 210 | Dim PingResult As Boolean = False |
| 211 | |
| 212 | Private Sub __dataArrival(data() As Byte) |
| 213 | Dim s_MSG As String = System.Text.Encoding.Unicode.GetString(data) |
| 214 | |
| 215 | If String.Equals(s_MSG, _PING_MESSAGE) Then |
| 216 | Call SendMessage(_PING_RETURNS) |
| 217 | ElseIf String.Equals(s_MSG, _PING_RETURNS) Then |
| 218 | PingResult = True |
| 219 | Else |
| 220 | If Not _callBacks Is Nothing Then |
| 221 | Call _callBacks(data) |
| 222 | End If |
| 223 | |
| 224 | If Not NewMessageCallBack Is Nothing Then |
| 225 | Call NewMessageCallBack()(s_MSG) |
| 226 | End If |
| 227 | End If |
| 228 | End Sub |
| 229 | |
| 230 | #Region "ShellScript API" |
| 231 | |
| 232 | <ExportAPI("MMFProtocol.New")> |
| 233 | Public Shared Function CreateObject(hostName As String, Optional handler As Action(Of Generic.IEnumerable(Of Byte)) = Nothing) As MMFProtocol.MMFSocket |
| 234 | Dim CallBackHandle As DataArrival = New DataArrival(Sub(data As Byte()) handler(data)) |
| 235 | Return New MMFSocket(hostName, CallBackHandle) |
| 236 | End Function |
| 237 | |
| 238 | <ExportAPI("SendMessage")> |
| 239 | Public Shared Function SendMessage(socket As MMFSocket, data As Generic.IEnumerable(Of Byte)) As Boolean |
| 240 | Try |
| 241 | Call socket.SendMessage(data.ToArray) |
| 242 | Return True |
| 243 | Catch ex As Exception |
| 244 | Return False |
| 245 | End Try |
| 246 | End Function |
| 247 | |
| 248 | <ExportAPI("getMessage")> |
| 249 | Public Shared Function getMessage(data As Generic.IEnumerable(Of Byte), Optional encoding As String = "") As String |
| 250 | Return TextFileEncodingDetector.ToString(data, encoding) |
| 251 | End Function |
| 252 | |
| 253 | <ExportAPI("Print.Message")> |
| 254 | Public Shared Function WriteMessage(data As Generic.IEnumerable(Of Byte)) As String |
| 255 | Dim Message As String = getMessage(data) |
| 256 | Call Console.WriteLine(Message) |
| 257 | Return Message |
| 258 | End Function |
| 259 | #End Region |
| 260 | End Class |
| 261 | End Namespace |