File size: 10,853 Bytes
b1b3bae |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 |
' DWSIM Network TCP Flowsheet Solver Server & Auxiliary Functions
' Copyright 2015 Daniel Wagner O. de Medeiros
'
' This file is part of DWSIM.
'
' DWSIM is free software: you can redistribute it and/or modify
' it under the terms of the GNU General Public License as published by
' the Free Software Foundation, either version 3 of the License, or
' (at your option) any later version.
'
' DWSIM is distributed in the hope that it will be useful,
' but WITHOUT ANY WARRANTY; without even the implied warranty of
' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
' GNU General Public License for more details.
'
' You should have received a copy of the GNU General Public License
' along with DWSIM. If not, see <http://www.gnu.org/licenses/>.
Imports System.IO
Imports System.Threading
Imports System.Threading.Tasks
Imports DWSIM
Imports System.Reflection
Imports System.Runtime.Serialization.Formatters.Binary
Module TCPServer
Private server As TcpComm.Server
Private lat As TcpComm.Utilities.LargeArrayTransferHelper
Private solutions As Dictionary(Of String, Byte())
Dim ts As CancellationTokenSource
Sub Main()
solutions = New Dictionary(Of String, Byte())
Console.WriteLine()
Console.WriteLine("DWSIM - Open Source Process Simulator")
Console.WriteLine("Network TCP/IP Solver Server")
Console.WriteLine(My.Application.Info.Copyright)
Dim dt As DateTime = CType("01/01/2000", DateTime).AddDays(My.Application.Info.Version.Build).AddSeconds(My.Application.Info.Version.Revision * 2)
Console.WriteLine("Version " & My.Application.Info.Version.Major & "." & My.Application.Info.Version.Minor & _
", Build " & My.Application.Info.Version.Build & " (" & Format(dt, "dd/MM/yyyy HH:mm") & ")")
If Type.GetType("Mono.Runtime") Is Nothing Then
Console.WriteLine("Microsoft .NET Framework Runtime Version " & System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion.ToString())
Else
Dim displayName As MethodInfo = Type.GetType("Mono.Runtime").GetMethod("GetDisplayName", BindingFlags.NonPublic Or BindingFlags.[Static])
If displayName IsNot Nothing Then
Console.WriteLine("Mono " + displayName.Invoke(Nothing, Nothing) + " / " + System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion.ToString())
Else
Console.WriteLine(System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion.ToString())
End If
End If
Console.WriteLine()
server = New TcpComm.Server(AddressOf Process)
lat = New TcpComm.Utilities.LargeArrayTransferHelper(server)
Dim port As Integer
If My.Application.CommandLineArgs.Count > 0 Then
port = My.Application.CommandLineArgs(0)
Else
Console.Write("Please enter the TCP Port Number to listen to: ")
port = Console.ReadLine()
End If
server.Start(port)
Console.WriteLine("[" & Date.Now.ToString & "] " & "Server IP Addresses:")
For Each adr In System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()).AddressList()
Console.WriteLine(adr.ToString)
Next
Console.WriteLine()
Console.WriteLine("[" & Date.Now.ToString & "] " & "Server is running and listening to incoming data on port " & port & "...")
Dim icounter As Integer = 100
While server.IsRunning
Threading.Thread.Sleep(1000)
icounter += 1
If Math.IEEERemainder(icounter, 100) = 0 Then
Dim binFormatter = New BinaryFormatter()
Dim mStream = New MemoryStream()
binFormatter.Serialize(mStream, solutions)
If mStream.Length > 100 * 1024 * 1024 Then
solutions.Clear()
End If
End If
End While
End Sub
Public Sub Process(ByVal bytes() As Byte, ByVal sessionID As Int32, ByVal dataChannel As Byte)
' Use TcpComm.Utilities.LargeArrayTransferHelper to make it easier to send and receive
' large arrays sent via lat.SendArray()
' The LargeArrayTransferHelperb will assemble any number of incoming large arrays
' on any channel or from any sessionId, and pass them back to this callback
' when they are complete. Returns True if it has handled this incomming packet,
' so we exit the callback when it returns true.
If lat.HandleIncomingBytes(bytes, 100, sessionID) Then Return
If ts Is Nothing Then ts = New CancellationTokenSource
If dataChannel = 100 Then
Dim ct As CancellationToken = ts.Token
Dim errmsg As String = ""
Console.WriteLine("[" & Date.Now.ToString & "] " & "Data received from " & server.GetSession(sessionID).machineId & ", flowsheet solving started!")
If Not server.SendText("Data received from " & server.GetSession(sessionID).machineId & ", flowsheet solving started!", 2, sessionID, errmsg) Then
Console.WriteLine(errmsg)
End If
Task.Factory.StartNew(Sub()
ProcessData(bytes, sessionID, dataChannel)
End Sub, ct, TaskCreationOptions.LongRunning).ContinueWith(Sub(t)
If Not t.Exception Is Nothing Then
Console.WriteLine("[" & Date.Now.ToString & "] " & "Error solving flowsheet: " & t.Exception.ToString)
errmsg = ""
If Not server.SendText("Error solving flowsheet: " & t.Exception.ToString, 3, sessionID, errmsg) Then
Console.WriteLine(errmsg)
End If
ElseIf t.IsCanceled Then
Console.WriteLine("[" & Date.Now.ToString & "] " & "Calculation aborted.")
errmsg = ""
If Not server.SendText("Calculation aborted.", 2, sessionID, errmsg) Then
Console.WriteLine(errmsg)
End If
End If
End Sub,
TaskContinuationOptions.OnlyOnFaulted).ContinueWith(Sub()
Console.WriteLine("[" & Date.Now.ToString & "] " & "Closing current session with " & server.GetSession(sessionID).machineId & ".")
errmsg = ""
If Not server.SendText("Closing current session with " & server.GetSession(sessionID).machineId & ".", 2, sessionID, errmsg) Then
Console.WriteLine(errmsg)
End If
ts.Dispose()
ts = Nothing
server.GetSession(sessionID).Close()
End Sub)
ElseIf dataChannel = 3 Then
If Not ts Is Nothing Then ts.Cancel()
ElseIf dataChannel = 255 Then
Dim tmp = ""
Dim msg As String = TcpComm.Utilities.BytesToString(bytes)
' server has finished sending the bytes you put into sendBytes()
If msg.Length > 3 Then tmp = msg.Substring(0, 3)
If tmp = "UBS" Then ' User Bytes Sent.
End If
End If
End Sub
Sub ProcessData(bytes As Byte(), sessionid As Integer, datachannel As Byte)
Dim errmsg As String = ""
Using bytestream As New MemoryStream(bytes)
Using form As FormFlowsheet = DWSIM.UnitOperations.UnitOperations.Flowsheet.InitializeFlowsheet(bytestream, New FormFlowsheet)
If Not solutions.ContainsKey(form.Options.Key) Then
DWSIM.FlowsheetSolver.FlowsheetSolver.SolveFlowsheet(form, 1, ts)
Dim retbytes As MemoryStream = DWSIM.UnitOperations.UnitOperations.Flowsheet.ReturnProcessData(form)
Using retbytes
Dim uncompressedbytes As Byte() = retbytes.ToArray
Using compressedstream As New MemoryStream()
Using gzs As New BufferedStream(New Compression.GZipStream(compressedstream, Compression.CompressionMode.Compress, True), 64 * 1024)
gzs.Write(uncompressedbytes, 0, uncompressedbytes.Length)
gzs.Close()
solutions.Add(form.Options.Key, compressedstream.ToArray)
End Using
End Using
End Using
End If
lat.SendArray(solutions(form.Options.Key), 100, sessionid, errmsg)
Console.WriteLine("[" & Date.Now.ToString & "] " & "Byte array length: " & solutions(form.Options.Key).Length)
End Using
End Using
End Sub
End Module
|