public static void ToString_Compare_Success()
{
SocketAddress sa1 = new SocketAddress(AddressFamily.InterNetwork, 64);
SocketAddress sa2 = new SocketAddress(AddressFamily.InterNetwork, 64);
SocketAddress sa3 = new SocketAddress(AddressFamily.InterNetwork, 48);
SocketAddress sa4 = new SocketAddress(AddressFamily.InterNetworkV6, 48);
Assert.Equal(sa1.ToString(), sa2.ToString());
Assert.NotEqual(sa1.ToString(), sa3.ToString());
Assert.NotEqual(sa1.ToString(), sa4.ToString());
}
public void NetTest6_SocketAddressBasic()
{
Random random = new();
for (int i = 0; i <= 30; i++)
{
int[] IPInts =
{
random.Next(256),
random.Next(256),
random.Next(256),
random.Next(128)
};
Debug.WriteLine($"Random IP {IPInts[0]}.{IPInts[1]}.{IPInts[2]}.{IPInts[3]}");
IPAddress address = new(
IPInts[0]
+ IPInts[1] * 256
+ IPInts[2] * 256 * 256
+ IPInts[3] * 256 * 256 * 256);
int portInt = random.Next(65536);
IPEndPoint ipEndpoint1 = new(address, portInt);
SocketAddress socketAddress1 = ipEndpoint1.Serialize();
SocketAddress socketAddress2 = ipEndpoint1.Serialize();
Assert.NotNull(socketAddress1, "socketAddress1 is null");
Assert.NotNull(socketAddress2, "socketAddress2 is null");
Type typeOfSocketAddress = socketAddress1.GetType();
Assert.IsType(typeOfSocketAddress, Type.GetType("System.Net.SocketAddress"), "socketAddress1 Type is incorrect");
typeOfSocketAddress = socketAddress2.GetType();
Assert.IsType(typeOfSocketAddress, Type.GetType("System.Net.SocketAddress"), "socketAddress2 Type is incorrect");
Assert.Equal(socketAddress1.ToString(), socketAddress2.ToString(), "ToString returns differently for same data");
Assert.Equal(socketAddress1.GetHashCode(), socketAddress2.GetHashCode(), $"GetHashCode returns differently for same data");
Assert.True(socketAddress1.Family == AddressFamily.InterNetwork, "socketAddress1 Family is incorrect");
Assert.True(socketAddress2.Family == AddressFamily.InterNetwork, "socketAddress2 Family is incorrect");
// Recreate a different Socket
socketAddress2 = new SocketAddress(AddressFamily.Chaos, 8);
Assert.NotEqual(socketAddress1.GetHashCode(), socketAddress2.GetHashCode(), "GetHashCode returns same for "
+ socketAddress1.ToString() + " " + socketAddress1.GetHashCode()
+ " as " + socketAddress2.ToString() + " " + socketAddress2.GetHashCode());
}
}
public void ToString_ValidSocketAddress_ExpectedFormat()
{
IPEndPoint ipLocalEndPoint = new IPEndPoint(IPAddress.Loopback, Convert.ToInt32("cafe", 16));
SocketAddress socketAddress = ipLocalEndPoint.Serialize();
Assert.Equal("InterNetwork:16:{202,254,127,0,0,1,0,0,0,0,0,0,0,0}", socketAddress.ToString());
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldThrowErrorWithRemoteAddressWhenClosed() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldThrowErrorWithRemoteAddressWhenClosed()
{
Channel channel = mock(typeof(Channel));
ByteBufAllocator allocator = mock(typeof(ByteBufAllocator));
when(allocator.buffer(anyInt())).thenReturn(Unpooled.buffer());
when(channel.alloc()).thenReturn(allocator);
SocketAddress remoteAddress = mock(typeof(SocketAddress));
string remoteAddressString = "client.server.com:7687";
when(remoteAddress.ToString()).thenReturn(remoteAddressString);
when(channel.remoteAddress()).thenReturn(remoteAddress);
ChunkedOutput output = new ChunkedOutput(channel, DEFAULT_TEST_BUFFER_SIZE, DEFAULT_TEST_BUFFER_SIZE, NO_THROTTLE);
output.Dispose();
try
{
output.WriteInt(42);
fail("Exception expected");
}
catch (PackOutputClosedException e)
{
assertThat(e.Message, containsString(remoteAddressString));
}
}
public static void ToString_LegacyUnknownFamily_Success(AddressFamily family)
{
// For legacy reasons, unknown values in ushort range don't throw on Windows.
var sa = new SocketAddress(family);
Assert.NotNull(sa.ToString());
}
public static void Main()
{
IPAddress test1 = IPAddress.Parse("192.168.1.1");
IPEndPoint ie = new IPEndPoint(test1, 8000);
ie.Port = 8000;
SocketAddress sa = ie.Serialize();
Console.WriteLine("The SocketAddress is: {0}", sa.ToString());
}
static void Main(string[] args)
{
IPAddress ipAddress = Dns.GetHostEntry("localhost").AddressList[0];
IPEndPoint ipLocalEndPoint = new IPEndPoint(ipAddress, 11000);
SocketAddress socketAddress = ipLocalEndPoint.Serialize();
Console.WriteLine("Contents of the socketAddress are: " + socketAddress.ToString());
Console.WriteLine("The address family of the socketAddress is: " + socketAddress.Family.ToString());
Console.WriteLine("The size of the underlying buffer is: " + socketAddress.Size.ToString());
}
public static void fSocketAddress()
{
IPAddress ipAddr1 = IPAddress.Parse("127.0.0.1");
IPAddress ipAddr2 = IPAddress.Parse("::1");
IPEndPoint ipEndPoint = new IPEndPoint(ipAddr1, 80);
SocketAddress SocketAddr = ipEndPoint.Serialize();
MessageBox.Show(SocketAddr.ToString());
}
public static RubyArray /*!*/ Accept(RubyContext /*!*/ context, RubySocket /*!*/ self)
{
RubyArray result = new RubyArray(2);
RubySocket s = new RubySocket(context, self.Socket.Accept());
result.Add(s);
SocketAddress addr = s.Socket.RemoteEndPoint.Serialize();
result.Add(MutableString.CreateAscii(addr.ToString()));
return(result);
}
public static void ToString_Compare_Success()
{
SocketAddress sa1 = new SocketAddress(AddressFamily.InterNetwork, 64);
SocketAddress sa2 = new SocketAddress(AddressFamily.InterNetwork, 64);
SocketAddress sa3 = new SocketAddress(AddressFamily.InterNetwork, 48);
SocketAddress sa4 = new SocketAddress(AddressFamily.InterNetworkV6, 48);
Assert.Equal(sa1.ToString(), sa2.ToString());
Assert.NotEqual(sa1.ToString(), sa3.ToString());
Assert.NotEqual(sa1.ToString(), sa4.ToString());
}
public static RubyArray /*!*/ SysAccept(RubyContext /*!*/ context, RubySocket /*!*/ self)
{
RubyArray result = new RubyArray(2);
// TODO: Do we need some kind of strong reference to the socket
// here to stop the RubySocket from being garbage collected?
RubySocket s = new RubySocket(context, self.Socket.Accept());
result.Add(s.GetFileDescriptor());
SocketAddress addr = s.Socket.RemoteEndPoint.Serialize();
result.Add(MutableString.CreateAscii(addr.ToString()));
return(result);
}
public static void ToString_Compare_Success()
{
SocketAddress sa1 = new SocketAddress(AddressFamily.InterNetwork, 64);
SocketAddress sa2 = new SocketAddress(AddressFamily.InterNetwork, 64);
SocketAddress sa3 = new SocketAddress(AddressFamily.InterNetwork, 48);
SocketAddress sa4 = new SocketAddress(AddressFamily.InterNetworkV6, 48);
Assert.Equal(sa1.ToString(), sa2.ToString());
Assert.NotEqual(sa1.ToString(), sa3.ToString());
Assert.NotEqual(sa1.ToString(), sa4.ToString());
Assert.Equal("InterNetwork:64:{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}", sa1.ToString());
Assert.Equal("InterNetworkV6:48:{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}", sa4.ToString());
SocketAddress sa5 = new SocketAddress(AddressFamily.InterNetworkV6, 48);
for (int i = 2; i < sa5.Size; i++)
{
sa5[i] = (byte)i;
}
Assert.EndsWith("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}", sa5.ToString());
}
public static void ToString_AllFamilies_Success()
{
foreach (AddressFamily family in Enum.GetValues(typeof(AddressFamily)))
{
if ((int)family > (int)AddressFamily.Max)
{
// Skip Linux specific protocols.
continue;
}
var sa = new SocketAddress(family);
Assert.NotNull(sa.ToString());
}
}
public static void ToString_AllFamilies_Success()
{
foreach (AddressFamily family in Enum.GetValues(typeof(AddressFamily)))
{
if (family == AddressFamily.Packet || family == AddressFamily.ControllerAreaNetwork)
{
// Skip Linux specific protocols.
continue;
}
var sa = new SocketAddress(family);
Assert.NotNull(sa.ToString());
}
}
public override EndPoint Create(SocketAddress sockAddr)
{
if (sockAddr == null ||
sockAddr.Family != AF_HYPERV ||
sockAddr.Size != 34)
{
return(null);
}
var sockAddress = sockAddr.ToString();
return(new HyperVSocketEndPoint(
vmid: new Guid(sockAddress.Substring(4, 16)),
serviceid: new Guid(sockAddress.Substring(20, 16))));
}
public static void Main()
{
IPAddress test1 = IPAddress.Parse("192.168.1.1");
IPEndPoint ie = new IPEndPoint(test1, 8000);
Console.WriteLine("The IPEndPoint is: {0}", ie.ToString());
Console.WriteLine("The AddressFamily is: {0}", ie.AddressFamily);
Console.WriteLine("The address is: {0}, and the port is: {1}\n", ie.Address, ie.Port);
Console.WriteLine("The min port number is: {0}", IPEndPoint.MinPort);
Console.WriteLine("The max port number is: {0}\n", IPEndPoint.MaxPort);
ie.Port = 80;
Console.WriteLine("The changed IPEndPoint value is: {0}", ie.ToString());
SocketAddress sa = ie.Serialize();
Console.WriteLine("The SocketAddress is: {0}", sa.ToString());
}
// The serializeEndpoint method serializes the endpoint and returns the
// SocketAddress containing the serialized endpoint data.
private static SocketAddress serializeEndpoint(IPEndPoint endpoint)
{
// Serialize IPEndPoint details to a SocketAddress instance.
SocketAddress socketAddress = endpoint.Serialize();
// Display the serialized endpoint information.
Console.WriteLine("Endpoint.Serialize() : " + socketAddress.ToString());
Console.WriteLine("Socket.Family : " + socketAddress.Family);
Console.WriteLine("Socket.Size : " + socketAddress.Size);
Console.WriteLine("Press any key to continue.");
Console.ReadLine();
return(socketAddress);
}
void Socket_Address()
{
//Creates an IpEndPoint.
IPAddress ipAddress = Dns.Resolve("http://localhost:50973/").AddressList[0];
IPEndPoint ipLocalEndPoint = new IPEndPoint(ipAddress, 11000);
//Serializes the IPEndPoint.
SocketAddress socketAddress = ipLocalEndPoint.Serialize();
//Verifies that ipLocalEndPoint is now serialized by printing its contents.
Console.WriteLine("Contents of the socketAddress are: " + socketAddress.ToString());
//Checks the Family property.
Console.WriteLine("The address family of the socketAddress is: " + socketAddress.Family.ToString());
//Checks the underlying buffer size.
Console.WriteLine("The size of the underlying buffer is: " + socketAddress.Size.ToString());
}
/// <summary>
/// Match record against address
/// </summary>
/// <param name="record"></param>
/// <param name="address"></param>
/// <param name="type"></param>
/// <returns></returns>
public static bool Matches(this INameRecord record, SocketAddress address,
NameRecordType type)
{
if (address.Family == AddressFamily.Collection)
{
return(Matches(record, (SocketAddressCollection)address, type));
}
if (Matches(record, address.ToString(), type))
{
return(true);
}
if (address.Family == AddressFamily.InterNetworkV6)
{
return(Matches(record, Reference.FromSocketAddress((Inet6SocketAddress)address), type));
}
return(false);
}
public override EndPoint Create(SocketAddress SockAddr)
{
if (SockAddr == null ||
SockAddr.Family != AF_HYPERV ||
SockAddr.Size != 34)
{
return(null);
}
HyperVSocketEndPoint endpoint = new HyperVSocketEndPoint(SockAddr.Family, Guid.Empty, Guid.Empty);
string sockAddress = SockAddr.ToString();
endpoint.VmId = new Guid(sockAddress.Substring(4, 16));
endpoint.ServiceId = new Guid(sockAddress.Substring(20, 16));
return(endpoint);
}
private ChannelContext AcquireChannelContext(RequestType type)
{
if (_channelPool == null)
{
throw new ComException(string.Format("Client for {0} is stopped", _destination.ToString()));
}
// Calling acquire is dangerous since it may be a blocking call... and if this
// thread holds a lock which others may want to be able to communicate with
// the server things go stiff.
ChannelContext result = _channelPool.acquire();
if (result == null)
{
_msgLog.error("Unable to acquire new channel for " + type);
throw TraceComException(new ComException("Unable to acquire new channel for " + type), "Client.acquireChannelContext");
}
return(result);
}
public static void MySerializeIPEndPointClassMethod()
{
//<Snippet1>
//Creates an IpEndPoint.
IPAddress ipAddress = Dns.Resolve("www.contoso.com").AddressList[0];
IPEndPoint ipLocalEndPoint = new IPEndPoint(ipAddress, 11000);
//Serializes the IPEndPoint.
SocketAddress socketAddress = ipLocalEndPoint.Serialize();
//Verifies that ipLocalEndPoint is now serialized by printing its contents.
Console.WriteLine("Contents of the socketAddress are: " + socketAddress.ToString());
//Checks the Family property.
Console.WriteLine("The address family of the socketAddress is: " + socketAddress.Family.ToString());
//Checks the underlying buffer size.
Console.WriteLine("The size of the underlying buffer is: " + socketAddress.Size.ToString());
//</Snippet1>
}
private static string GetHostString(SocketAddress address)
{
return(address is InetSocketAddress ? (( InetSocketAddress )address).HostString : address.ToString());
}
public IncomingUDPmessageBoundle(SocketAddress remSktAddr, string message)
{
srcUDPmessage = message;
remoteSocketAddress = remSktAddr;
string addrStr = remoteSocketAddress.ToString(); //InterNetwork:16:{21,179,192,168,192,221,0,0,0,0,0,0,0,0}
addrStr = addrStr.Substring(addrStr.IndexOf("{") + 1);
addrStr = addrStr.Substring(0, addrStr.Length - 1);
char[] splitChar = { ',' };
string[] sktAddrStrArray = addrStr.Split(splitChar);
ipAddrString = sktAddrStrArray[2] + "." + sktAddrStrArray[3] + "." + sktAddrStrArray[4] + "." + sktAddrStrArray[5];
if ((message.IndexOf(plusplusSign) > -1) || (message.IndexOf(plusSign) > -1))
{
isPartOfMessage = true;
if ((message.Substring(0, 3) == plusSign) && (message.Substring(message.Length - 3) == plusSign))
{
// середина кортежа
udpMessage = message.Replace(plusSign, "");
}
else if ((message.Substring(0, 4) == plusplusSign) && (message.Substring(message.Length - 3) == plusSign))
{
// начало кортежа
udpMessage = message.Replace(plusSign, "");
udpMessage = udpMessage.Replace(plusplusSign, "");
isStartOfTuple = true;
}
else if ((message.Substring(0, 3) == plusSign) && (message.Substring(message.Length - 4) == plusplusSign))
{
// конец кортежа
udpMessage = message.Replace(plusSign, "");
udpMessage = udpMessage.Replace(plusplusSign, "");
isEndOfTuple = true;
}
if ((udpMessage.Length >= msgIDsign.Length) && (udpMessage.IndexOf(msgIDsign) >= 0))
{
int idxStartMsgIDtag = udpMessage.IndexOf(msgIDsign);
int idxEndMsgIDtag = udpMessage.IndexOf('>', idxStartMsgIDtag);
string strMsgIDTag = udpMessage.Substring(idxStartMsgIDtag, idxEndMsgIDtag - idxStartMsgIDtag + 1); // "<mid:615253478172>"
try
{
strMsgIDTag = strMsgIDTag.Replace(msgIDsign, "");
strMsgIDTag = strMsgIDTag.Replace(">", "");
mID = Convert.ToInt32(strMsgIDTag);
}
catch (Exception)
{
mID = 0;
}
udpMessage = udpMessage.Replace(msgIDsign + mID + ">", "");
}
else
{
mID = 0;
}
if ((udpMessage.Length >= msgSubIDsign.Length) && (udpMessage.IndexOf(msgSubIDsign) >= 0))
{
int idxStartMsgSubIDtag = udpMessage.IndexOf(msgSubIDsign);
int idxEndMsgSubIDtag = udpMessage.IndexOf('>', idxStartMsgSubIDtag);
string strMsgSubIDTag = udpMessage.Substring(idxStartMsgSubIDtag, idxEndMsgSubIDtag - idxStartMsgSubIDtag + 1); // "<mid:615253478172>"
try
{
strMsgSubIDTag = strMsgSubIDTag.Replace(msgSubIDsign, "");
strMsgSubIDTag = strMsgSubIDTag.Replace(">", "");
mSubID = Convert.ToInt32(strMsgSubIDTag);
}
catch (Exception)
{
mSubID = 0;
}
udpMessage = udpMessage.Replace(msgSubIDsign + mSubID + ">", "");
}
else
{
mSubID = 0;
}
}
else
{
udpMessage = message;
srcUDPmessage = message;
}
if ((udpMessage.Length >= 5) && (udpMessage.IndexOf("<id") >= 0))
{
int idxStartDevIDtag = udpMessage.IndexOf("<id");
string strDevIDTag = udpMessage.Substring(idxStartDevIDtag, 5); // "<id2>"
try
{
strDevIDTag = strDevIDTag.Replace("<id", "");
strDevIDTag = strDevIDTag.Replace(">", "");
devID = Convert.ToInt32(strDevIDTag);
}
catch (Exception)
{
devID = 0;
}
udpMessage = udpMessage.Replace("<id" + devID + ">", "");
}
else
{
devID = 0;
}
/// TODO: The 'then' statement is equivalent to the 'else' statement
if (isPartOfMessage)
{
if ((udpMessage.Length >= 6) && (udpMessage.IndexOf("<repl>") >= 0))
{
udpMessage = udpMessage.Replace("<repl>", "");
isReplyMessage = true;
}
//if ((udpMessage.Length >= 5) && (udpMessage.IndexOf("<err>") >= 0))
//{
// udpMessage = udpMessage.Replace("<err>", "");
// isErrorMessage = true;
//}
}
else
{
if ((udpMessage.Length >= 6) && (udpMessage.IndexOf("<repl>") >= 0))
{
udpMessage = udpMessage.Replace("<repl>", "");
isReplyMessage = true;
}
}
}
public MFTestResults NetTest6_SocketAddressBasic()
{
/// <summary>
/// 1. Creates 30 Random IPs between 0.0.0.0 and 255.255.255.127
/// 2. Verifies that they can be constructed as SocketAddress
/// 3. Verifies that they have the correct data (GetAddressBytes)
/// 4. Verifies ToString and GetHashcode
/// </summary>
///
bool testResult = true;
try
{
Random random = new Random();
for (int i = 0; i <= 30; i++)
{
int[] IPInts = { random.Next(256), random.Next(256),
random.Next(256), random.Next(128) };
Log.Comment("Random IP " + IPInts[0] + "." + IPInts[1]
+ "." + IPInts[2] + "." + IPInts[3]);
IPAddress address = new IPAddress((long)(
IPInts[0]
+ IPInts[1] * 256
+ IPInts[2] * 256 * 256
+ IPInts[3] * 256 * 256 * 256));
int portInt = random.Next(65536);
IPEndPoint ipEndpoint1 = new IPEndPoint(address, portInt);
SocketAddress socketAddress1 = ipEndpoint1.Serialize();
SocketAddress socketAddress2 = ipEndpoint1.Serialize();
if (socketAddress1 == null)
{
throw new Exception("socketAddress1 is null");
}
if (socketAddress2 == null)
{
throw new Exception("socketAddress2 is null");
}
Type typeOfSocketAddress = socketAddress1.GetType();
if (typeOfSocketAddress != Type.GetType("System.Net.SocketAddress"))
{
throw new Exception("socketAddress1 Type is incorrect");
}
typeOfSocketAddress = socketAddress2.GetType();
if (typeOfSocketAddress != Type.GetType("System.Net.SocketAddress"))
{
throw new Exception("socketAddress2 Type is incorrect");
}
if (socketAddress1.ToString() != socketAddress2.ToString())
{
throw new Exception("ToString returns differently for same data");
}
//21295 GetHashCode returns differently for cloned data
if (socketAddress1.GetHashCode() != socketAddress2.GetHashCode())
{
throw new Exception("GetHashCode returns differently for same data");
}
if (socketAddress1.Family != AddressFamily.InterNetwork)
{
throw new Exception("socketAddress1 Family is incorrect");
}
if (socketAddress2.Family != AddressFamily.InterNetwork)
{
throw new Exception("socketAddress2 Family is incorrect");
}
/*
* Pending Resolution of 17428
*
* Log.Comment("Recreating socketAddress2 with new data");
* int portInt2 = portInt % 2 + 1;
* long addressLong2 = (long)(
* (IPInts[0] % 2 + 1)
+ (IPInts[1] % 2 + 1) * 256
+ (IPInts[2] % 2 + 1) * 256 * 256
+ (IPInts[3] % 2 + 1) * 256 * 256 * 256);
+
+ IPEndPoint ipEndpoint2 = new IPEndPoint(addressLong2, portInt2);
+ socketAddress2 = ipEndpoint2.Serialize();
+ socketAddress2.Family = AddressFamily.Chaos;
*/
socketAddress2 = new SocketAddress(AddressFamily.Chaos, 8);
if (socketAddress1.GetHashCode() == socketAddress2.GetHashCode())
{
throw new Exception("GetHashCode returns same for "
+ socketAddress1.ToString()
+ " as " + socketAddress2.ToString());
}
if (socketAddress1.ToString() == socketAddress2.ToString())
{
throw new Exception("ToString returns same for different data");
}
}
}
catch (Exception e)
{
Log.Comment("Caught exception: " + e.Message);
testResult = false;
}
return(testResult ? MFTestResults.Pass : MFTestResults.KnownFailure);
}
public override string ToString()
{
return(string.Concat(m_Family, "/", ProtocolType, "\\", ProtocolType, "\\",
string.Join(Media.Common.Extensions.IPEndPoint.IPEndPointExtensions.SchemeSeperator, ProtocolType.ToString().ToLowerInvariant(), SocketAddress == null ? string.Empty : SocketAddress.ToString()),
Media.Common.Extensions.IPEndPoint.IPEndPointExtensions.PortSeperator, m_Port));
}
/// <summary>
/// This is the thread function that waits for messages from the CDS
/// net.
/// </summary>
protected void listen()
{
this.listenSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Dgram, ProtocolType.IP);
byte[] recvBuffer = new byte[HEADER_LENGTH + MAX_USER_DATA];
int bytesReceived = 0;
EndPoint peerAddr = new IPEndPoint(IPAddress.Any, 0);
SocketAddress peerId = new SocketAddress(
AddressFamily.InterNetwork, ADDRESS_LENGTH);
string peerName = "";
/* Configure the socket and bind it to the discovery address. */
this.listenSocket.SetSocketOption(SocketOptionLevel.Socket,
SocketOptionName.Broadcast, true);
// TODO: The following socket options are possibly a security issue.
this.listenSocket.SetSocketOption(SocketOptionLevel.Socket,
SocketOptionName.ExclusiveAddressUse, false);
this.listenSocket.SetSocketOption(SocketOptionLevel.Socket,
SocketOptionName.ReuseAddress, true);
this.listenSocket.Bind(this.bindAddr);
/* Enter the receiver loop. */
Debug.WriteLine("ClusterDiscoveryObserver now starts listening on "
+ this.bindAddr.ToString() + " ...");
while (true)
{
try {
bytesReceived = this.listenSocket.ReceiveFrom(recvBuffer,
(int)(HEADER_LENGTH + MAX_USER_DATA), SocketFlags.None,
ref peerAddr);
Debug.WriteLine("Received " + bytesReceived.ToString()
+ " Bytes from " + peerAddr.ToString());
// Message header consists of
// - 2 byte magic number
// - 2 byte message type ID.
if (BitConverter.ToUInt32(recvBuffer, 0) == MAGIC_NUMBER)
{
UInt32 msgType = BitConverter.ToUInt32(recvBuffer, 2);
Debug.WriteLine("Type of message received is "
+ msgType.ToString());
/* Unpack the default message. */
switch (msgType)
{
case MSG_TYPE_IAMALIVE:
/* falls through. */
case MSG_TYPE_IAMHERE:
/* falls through. */
case MSG_TYPE_SAYONARA:
// The message body consists of
// - ADDRESS_LENGTH bytes of an IPv4 address
// - MAX_NAME_LEN bytes of the name string.
for (int i = 0; i < ADDRESS_LENGTH; i++)
{
peerId[i] = recvBuffer[HEADER_LENGTH + i];
}
peerName = new ASCIIEncoding().GetString(
recvBuffer,
(int)HEADER_LENGTH,
(int)MAX_NAME_LEN);
Debug.WriteLine("Peer response address (ID) is "
+ peerId.ToString());
Debug.WriteLine("Cluster name is " + peerName);
break;
default:
/* Other messages should not be unpacked. */
break;
}
/* Take appropriate action for the message. */
switch (msgType)
{
case MSG_TYPE_IAMALIVE:
/* falls through. */
case MSG_TYPE_IAMHERE:
if (peerName == this.name)
{
this.addPeerNode(peerId, peerAddr);
}
break;
case MSG_TYPE_SAYONARA:
if (peerName == this.name)
{
this.removePeerNode(peerId);
}
break;
default:
if (msgType >= MSG_TYPE_USER)
{
this.fireUserMessage(peerAddr, msgType,
recvBuffer, HEADER_LENGTH);
}
break;
}
} /* end if (BitConverter.ToUInt32(recvBuffer, 0) ... */
} catch (SocketException e) {
Debug.WriteLine("A communication error occurred in the "
+ "cluster discovery listener thread: " + e.Message);
lock (this.listener) {
if (!this.isListening)
{
Debug.WriteLine("The cluster discovery listener "
+ "thread is leaving, because a stop was "
+ "requested.");
return;
}
}
} /* end try */
} /* end while (true) */
}
