/*
* find or create a connection to the given node
*/
public virtual OtpCookedConnection connection(System.String node)
{
OtpPeer peer = null;
OtpCookedConnection conn = null;
lock (connections)
{
// first just try looking up the name as-is
conn = (OtpCookedConnection)connections[node];
if (conn == null)
{
// in case node had no '@' add localhost info and try again
peer = new OtpPeer(node);
conn = (OtpCookedConnection)connections[peer.node()];
if (conn == null)
{
try
{
conn = new OtpCookedConnection(this, peer);
addConnection(conn);
}
catch (System.Exception e)
{
/*false = outgoing */
connAttempt(peer.node(), false, e);
}
}
}
return(conn);
}
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
*
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
// package scope
internal OtpConnection(OtpSelf self, OtpPeer other) : base(self, other)
{
this._self = self;
this.queue = new GenericQueue();
System.Threading.Thread t = new System.Threading.Thread(new System.Threading.ThreadStart(Start));
t.IsBackground = true;
t.Name = "connection2 " + self.node() + " -> " + other.node();
t.Start();
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
*
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
// package scope
internal OtpConnection(OtpSelf self, OtpPeer other):base(self, other)
{
this._self = self;
this.queue = new GenericQueue();
System.Threading.Thread t = new System.Threading.Thread(new System.Threading.ThreadStart(Start));
t.IsBackground = true;
t.Name = "connection2 "+self.node()+" -> "+other.node();
t.Start();
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
*
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
// package scope
internal OtpCookedConnection(OtpNode self, OtpPeer other) : base(self, other)
{
this.self = self;
this.links = new Links(25);
this.monitors = new System.Collections.Hashtable(49, (float)0.95);
thread = new System.Threading.Thread(new System.Threading.ThreadStart(Start));
thread.IsBackground = true;
thread.Name = "cooked connection2 " + self.node() + "->" + other.node();
thread.Start();
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
protected internal AbstractConnection(OtpLocalNode self, OtpPeer other, string cookie)
{
this.peer = other;
this.self = self;
this.socket = null;
this.auth_cookie = cookie;
//this.IsBackground = true;
// now get a connection between the two...
int port = OtpEpmd.lookupPort(peer);
// now find highest common dist value
if ((peer._proto != self._proto) || (self._distHigh < peer._distLow) || (self._distLow > peer._distHigh))
{
throw new System.IO.IOException("No common protocol found - cannot connect");
}
// highest common version: min(peer.distHigh, self.distHigh)
peer.distChoose = (peer._distHigh > self._distHigh ? self._distHigh : peer._distHigh);
doConnect(port);
this.name = peer.node();
this.connected = true;
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
protected internal AbstractConnection(OtpLocalNode self, OtpPeer other)
: this(self, other, self.cookie())
{
}
protected internal virtual void recvName(OtpPeer peer)
{
System.String hisname = "";
try
{
byte[] tmpbuf = read2BytePackage();
OtpInputStream ibuf = new OtpInputStream(tmpbuf);
byte[] tmpname;
int len = (int) (tmpbuf.Length);
peer.ntype = ibuf.read1();
if (peer.ntype != AbstractNode.NTYPE_R6)
{
throw new System.IO.IOException("Unknown remote node type");
}
peer._distLow = (peer._distHigh = ibuf.read2BE());
if (peer._distLow < 5)
{
throw new System.IO.IOException("Unknown remote node type");
}
peer.flags = ibuf.read4BE();
tmpname = new byte[len - 7];
ibuf.readN(tmpname);
char[] tmpChar;
tmpChar = new char[tmpname.Length];
tmpname.CopyTo(tmpChar, 0);
hisname = new System.String(tmpChar);
// Set the old nodetype parameter to indicate hidden/normal status
// When the old handshake is removed, the ntype should also be.
if ((peer.flags & AbstractNode.dFlagPublished) != 0)
peer.ntype = AbstractNode.NTYPE_R4_ERLANG;
else
peer.ntype = AbstractNode.NTYPE_R4_HIDDEN;
if ((peer.flags & AbstractNode.dFlagExtendedReferences) == 0)
{
throw new System.IO.IOException("Handshake failed - peer cannot handle extended references");
}
if (OtpSystem.useExtendedPidsPorts() && (peer.flags & AbstractNode.dFlagExtendedPidsPorts) == 0)
if (true && (peer.flags & AbstractNode.dFlagExtendedPidsPorts) == 0)
{
throw new System.IO.IOException("Handshake failed - peer cannot handle extended pids and ports");
}
}
catch (Erlang.Exception)
{
throw new System.IO.IOException("Handshake failed - not enough data");
}
int i = hisname.IndexOf((System.Char) '@', 0);
peer._node = hisname;
peer._alive = hisname.Substring(0, (i) - (0));
peer._host = hisname.Substring(i + 1, (hisname.Length) - (i + 1));
if (traceLevel >= OtpTrace.Type.handshakeThreshold)
{
OtpTrace.TraceEvent("<- " + "HANDSHAKE" + " ntype=" + peer.ntype + " dist=" + peer._distHigh + " remote=" + peer);
}
}
/*
* Accept an incoming connection from a remote node. Used by {@link
* OtpSelf#accept() OtpSelf.accept()} to create a connection
* based on data received when handshaking with the peer node, when
* the remote node is the connection intitiator.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
* @exception OtpAuthException if handshake resulted in an authentication error
*/
protected internal AbstractConnection(OtpLocalNode self, System.Net.Sockets.TcpClient s)
{
this.self = self;
this.peer = new OtpPeer();
this.socket = s;
this.auth_cookie = self.cookie();
this.socket.NoDelay = true;
// Use keepalive timer
this.socket.Client.SetSocketOption(
System.Net.Sockets.SocketOptionLevel.Socket,
System.Net.Sockets.SocketOptionName.KeepAlive, true);
// Close socket gracefully
this.socket.Client.SetSocketOption(
System.Net.Sockets.SocketOptionLevel.Socket,
System.Net.Sockets.SocketOptionName.DontLinger, true);
//this.socket.ReceiveTimeout = 5000;
if (traceLevel >= OtpTrace.Type.handshakeThreshold)
{
OtpTrace.TraceEvent("<- ACCEPT FROM " +
System.Net.IPAddress.Parse(s.Client.RemoteEndPoint.ToString()).ToString() + ":" +
(s.Client.RemoteEndPoint as System.Net.IPEndPoint).Port.ToString());
}
// get his info
recvName(this.peer);
// now find highest common dist value
if ((peer._proto != self._proto) || (self._distHigh < peer._distLow) || (self._distLow > peer._distHigh))
{
close();
throw new System.IO.IOException("No common protocol found - cannot accept connection");
}
// highest common version: min(peer.distHigh, self.distHigh)
peer.distChoose = (peer._distHigh > self._distHigh?self._distHigh:peer._distHigh);
doAccept();
this.name = peer.node();
}
private AbstractConnection(OtpLocalNode self, OtpPeer peer, System.Net.Sockets.TcpClient s, string cookie)
{
this.peer = peer;
this.self = self;
this.socket = s;
this.auth_cookie = cookie ?? self._cookie;
this.sentBytes = 0;
this.receivedBytes = 0;
this.maxPayloadLength = defaultMaxPayloadLength;
}
/*
* Open a connection to a remote node.
*
* @param other the remote node to which you wish to connect.
*
* @return a connection to the remote node.
*
* @exception C#.net.UnknownHostException if the remote host could
* not be found.
*
* @exception C#.io.IOException if it was not possible to connect
* to the remote node.
*
* @exception OtpAuthException if the connection was refused by the
* remote node.
**/
public virtual OtpConnection connect(OtpPeer other)
{
return(new OtpConnection(this, other));
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
*
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
// package scope
internal OtpCookedConnection(OtpNode self, OtpPeer other, string cookie)
: base(self, other, cookie)
{
this.self = self;
this.links = new Links(25);
this.monitors = new System.Collections.Hashtable(49, (float)0.95);
thread = new System.Threading.Thread(new System.Threading.ThreadStart(Start));
thread.IsBackground = true;
thread.Name = "cooked connection2 "+self.node()+"->"+other.node();
thread.Start();
}
/*
* find or create a connection to the given node
*/
public virtual OtpCookedConnection connection(System.String node, string cookie)
{
OtpPeer peer = null;
OtpCookedConnection conn = null;
lock(connections)
{
// first just try looking up the name as-is
conn = (OtpCookedConnection) connections[node];
if (conn == null)
{
// in case node had no '@' add localhost info and try again
peer = new OtpPeer(node, _useShortName);
conn = (OtpCookedConnection) connections[peer.node()];
if (conn == null)
{
try
{
conn = new OtpCookedConnection(this, peer, cookie);
addConnection(conn);
}
catch (System.Exception e)
{
/*false = outgoing */
connAttempt(peer.node(), false, e);
}
}
}
return conn;
}
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
*
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
// package scope
internal OtpCookedConnection(OtpNode self, OtpPeer other)
: this(self, other, self.cookie())
{
}
/*
* Accept an incoming connection from a remote node. Used by {@link
* OtpSelf#accept() OtpSelf.accept()} to create a connection
* based on data received when handshaking with the peer node, when
* the remote node is the connection intitiator.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
* @exception OtpAuthException if handshake resulted in an authentication error
*/
protected internal AbstractConnection(OtpLocalNode self, System.Net.Sockets.TcpClient s)
{
this.self = self;
this.peer = new OtpPeer();
this.socket = s;
this.socket.NoDelay = true;
this.traceLevel = defaultLevel;
if (traceLevel >= handshakeThreshold)
{
System.Console.Out.WriteLine("<- ACCEPT FROM ?");
/*
System.Net.Sockets.Socket sock = s.Client;
//UPGRADE_TODO: Expression C#.net.Socket.getInetAddress could not be converted.;
//UPGRADE_TODO: Expression C#.net.Socket.getPort could not be converted.;
System.Console.Out.WriteLine("<- ACCEPT FROM " +
IPAddress.Parse(((IPEndPoint)s.RemoteEndPoint).Address.ToString())+ ":" +
((IPEndPoint)s.RemoteEndPoint).Port.ToString());
*/
}
// get his info
recvName(this.peer);
// now find highest common dist value
if ((peer._proto != self._proto) || (self._distHigh < peer._distLow) || (self._distLow > peer._distHigh))
{
close();
throw new System.IO.IOException("No common protocol found - cannot accept connection");
}
// highest common version: min(peer.distHigh, self.distHigh)
peer.distChoose = (peer._distHigh > self._distHigh?self._distHigh:peer._distHigh);
doAccept();
this.name = peer.node();
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
*
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
// package scope
internal OtpCookedConnection(OtpNode self, OtpPeer other)
: this(self, other, self.cookie())
{
}
/*
* Open a connection to a remote node.
*
* @param other the remote node to which you wish to connect.
*
* @return a connection to the remote node.
*
* @exception C#.net.UnknownHostException if the remote host could
* not be found.
*
* @exception C#.io.IOException if it was not possible to connect
* to the remote node.
*
* @exception OtpAuthException if the connection was refused by the
* remote node.
**/
public virtual OtpConnection connect(OtpPeer other)
{
return new OtpConnection(this, other);
}
/*
* Intiate and open a connection to a remote node.
*
* @exception C#.io.IOException if it was not possible to connect to the peer.
*
* @exception OtpAuthException if handshake resulted in an authentication error.
*/
// package scope
internal OtpCookedConnection(OtpNode self, OtpPeer other)
: base(self, other)
{
this.self = self;
this.links = new Links(25);
thread = new System.Threading.Thread(new System.Threading.ThreadStart(Start));
thread.IsBackground = true;
thread.Name = "cooked connection2 "+self.node()+"->"+other.node();
thread.Start();
}
