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 |