Moving micasa 1.5 trunk to Novell forge.

2005-10-11 19:51:00 +00:00
parent 082db33275
commit efe0a5e13c
691 changed files with 116628 additions and 0 deletions
--- a/c_micasad/communication/UnixIPCChannel.cs
+++ b/c_micasad/communication/UnixIPCChannel.cs
@@ -0,0 +1,142 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+using Mono.Posix;
+using System.IO;
+using System.Text;
+using sscs.common;
+using sscs.verbs;
+using sscs.constants;
+
+
+namespace sscs.communication
+{
+
+class UnixIPCChannel : IPCChannel
+{
+    // Data
+    private Socket clientSocket;
+    private UnixUserIdentifier userId;
+
+    //Methods
+
+    internal UnixIPCChannel(Socket connectedSocket)
+    {
+        CSSSLogger.ExecutionTrace(this);
+        clientSocket = connectedSocket;
+        PeerCred cred = new PeerCred(connectedSocket);
+        userId = new UnixUserIdentifier(cred.UserID);
+    }
+
+    override internal UserIdentifier GetIPCChannelUserId()
+    {
+        CSSSLogger.ExecutionTrace(this);
+        return userId;
+    }
+
+    private UnixIPCChannel()
+    { 
+        CSSSLogger.ExecutionTrace(this);
+    }
+    ~UnixIPCChannel()
+    {
+        CSSSLogger.ExecutionTrace(this);
+        clientSocket.Close();    
+    }
+    override internal int Read(byte[] buf)
+    {
+        return 0;
+    }
+    override internal byte[] Read()
+    {
+        CSSSLogger.ExecutionTrace(this);
+        int bytesRecvd = 0;
+        try
+        {
+            byte[] msgIdBytes = new byte[2];
+            bytesRecvd = clientSocket.Receive(msgIdBytes);
+            if( 0 == bytesRecvd )
+            {
+                return null;
+            } 
+            if( bytesRecvd < 0 ) // IPC is fine and Client had some problem
+            {
+                throw new CommunicationException("Client has not sent data.");
+            }
+
+            byte[] msgLenBytes = new byte[4];
+            bytesRecvd = clientSocket.Receive(msgLenBytes);
+            if( 0 == bytesRecvd )
+            {
+                return null;
+            } 
+            if( bytesRecvd < 0 ) // IPC is fine and Client had some problem
+            {
+                throw new CommunicationException("Client has not sent data.");
+            }
+
+            byte[] bufToReturn = null;
+            uint msgLen = BitConverter.ToUInt32(msgLenBytes,0);
+            if( msgLen > 6 )
+            {
+                byte[] buf = new byte[msgLen - 6];
+ 	        bytesRecvd = clientSocket.Receive (buf);
+                CSSSLogger.DbgLog("In " + CSSSLogger.GetExecutionPath(this) + " Bytes received is " + bytesRecvd);
+                if( 0 == bytesRecvd )
+                {
+                    return null;
+                } 
+
+                if( bytesRecvd < 0 ) // IPC is fine and Client had some problem
+                {
+                    throw new CommunicationException("Client has not sent data.");
+                }
+
+                bufToReturn = new byte[msgLen];
+                Array.Copy(msgIdBytes,bufToReturn,2);
+                Array.Copy(msgLenBytes,0,bufToReturn,2,4);
+                Array.Copy(buf,0,bufToReturn,6,buf.Length);
+                return bufToReturn;
+            }
+            else
+            {
+                bufToReturn = new byte[6];
+                Array.Copy(msgIdBytes,bufToReturn,2);
+                Array.Copy(msgLenBytes,0,bufToReturn,2,4);
+                return bufToReturn;
+            }
+        }
+        catch(CommunicationException e)
+        {
+            throw e;
+        }
+        catch(Exception e)
+        {
+            CSSSLogger.ExpLog(e.ToString());
+            throw new CommunicationException(e.ToString()); 
+        }
+    }
+    override internal int Write(byte[] buf)
+    {
+        try
+        {
+            CSSSLogger.ExecutionTrace(this);
+            int bytesSent = clientSocket.Send(buf);
+            CSSSLogger.DbgLog("In " + CSSSLogger.GetExecutionPath(this) + " - Bytes sent is " + bytesSent);
+            return bytesSent; 
+        }
+        catch(Exception e)
+        {
+            CSSSLogger.ExpLog(e.ToString());
+            return -1;
+        }
+
+
+    }
+    override internal void Close()
+    {
+        CSSSLogger.ExecutionTrace(this);
+        clientSocket.Close();
+    }
+}
+}