Initial commit

owSession.cs

@@ -0,0 +1,156 @@
+using Common.Debug;
+using System;
+using System.Threading;
+
+namespace OneWireAPI
+{
+    public class owSession 
+    {
+        #region Member variables
+
+        private int _sessionHandle;                 // Session handle
+        private owNetwork _network;                 // Network object
+        
+        private readonly short _portNumber;         // Port number
+        private readonly short _portType;           // Port type
+        private readonly byte[] _stateBuffer;       // Global state buffer
+
+        #endregion
+
+        #region Constructor
+
+        public owSession()
+        {
+            // Create the global state buffer
+            _stateBuffer = new byte[(int) TMEX.TMStateBufferSize.NoEPROMWriting];
+
+            // Get the default port number and type from the system
+            short result = TMEX.TMReadDefaultPort(out _portNumber, out _portType);
+
+            Tracer.WriteLine("TMReadDefaultPort - Return: {0}, Port Number: {1}, Port Type: {2}", result, _portNumber, _portType);
+        }
+
+        public owSession(short PortNumber, short PortType)
+        {
+            // Create the global state buffer
+            _stateBuffer = new byte[(int) TMEX.TMStateBufferSize.NoEPROMWriting];
+
+            // Store the port number and type specified
+            _portNumber = PortNumber;
+            _portType = PortType;
+        }
+
+        #endregion
+
+        #region Properties
+
+        public short PortNumber
+        {
+            get { return _portNumber; }
+        }
+
+        public short PortType
+        {
+            get { return _portType; }
+        }
+
+        public int SessionHandle
+        {
+            get { return _sessionHandle; }
+        }
+
+        public owNetwork Network
+        {
+            get { return _network; }
+        }
+
+        public byte[] StateBuffer
+        {
+            get { return _stateBuffer; }
+        }
+
+        #endregion
+
+        #region Methods
+
+        public bool Acquire()
+        {
+            // Create a byte array to hold the version information
+            byte[] version = new byte[80];
+
+            // Get the version 
+            TMEX.Get_Version(version);
+
+            // Decode the version
+            string sVersion = System.Text.Encoding.Default.GetString(version, 0, version.Length);
+
+            // Strip everything up to the first null character
+            sVersion = sVersion.Substring(0, sVersion.IndexOf("\0"));
+
+            Tracer.WriteLine("Version: {0}", sVersion);
+
+            Tracer.WriteLine("Starting Aquire");
+
+            // Start a session on the port
+            _sessionHandle = TMEX.TMExtendedStartSession(_portNumber, _portType, IntPtr.Zero);
+
+            Tracer.WriteLine("TMExtendedStartSession - Return: {0}", _sessionHandle);
+
+            // If we didn't get a session then throw an error
+            if (_sessionHandle <= 0)
+                return false;
+
+            // Setup the port for the current session
+            short result = TMEX.TMSetup(_sessionHandle);
+
+            Tracer.WriteLine("TMSetup - Return: {0}", result);
+
+            // Check the result
+            if (result != 1)
+            {
+                // Release the session
+                Release();
+
+                return false;
+            }
+
+            // Create the network object and pass ourself as the session
+            _network = new owNetwork(this);
+
+            // Initialize the network
+            _network.Initialize();
+
+            // Initialize the static adapter code with the session
+            owAdapter.Initialize(this);
+
+            return true;
+        }
+
+        public void Release()
+        {
+            Tracer.WriteLine("Starting Release");
+
+            // Terminate the network
+            if (_network != null)
+            {
+                _network.Terminate();
+                _network = null;
+            }
+
+            // Close the session
+            short result = TMEX.TMClose(_sessionHandle);
+
+            Tracer.WriteLine("TMClose - Return: {0}", result);
+
+            // End the session
+            result = TMEX.TMEndSession(_sessionHandle);
+
+            Tracer.WriteLine("TMEndSession - Return: {0}", result);
+
+            // Clear the session variable
+            _sessionHandle = 0;
+        }
+
+        #endregion
+    }
+}