public static PingHeader ReadPingHeader(CompactReader reader)
{
byte isNull = reader.ReadByte();
if (isNull == 1)
{
return(null);
}
PingHeader newHdr = new PingHeader();
newHdr.Deserialize(reader);
return(newHdr);
}
public static void WritePingHeader(CompactWriter writer, PingHeader hdr)
{
byte isNull = 1;
if (hdr == null)
{
writer.Write(isNull);
}
else
{
isNull = 0;
writer.Write(isNull);
hdr.Serialize(writer);
}
return;
}
public static PingHeader ReadPingHeader(CompactReader reader)
{
byte isNull = reader.ReadByte();
if (isNull == 1)
return null;
PingHeader newHdr = new PingHeader();
newHdr.Deserialize(reader);
return newHdr;
}
public static void WritePingHeader(CompactWriter writer, PingHeader hdr)
{
byte isNull = 1;
if (hdr == null)
writer.Write(isNull);
else
{
isNull = 0;
writer.Write(isNull);
hdr.Serialize(writer);
}
return;
}
public override void up(Event evt)
{
Message msg, rsp_msg;
System.Object obj;
PingHeader hdr, rsp_hdr;
PingRsp rsp;
Address coord;
switch (evt.Type)
{
case Event.MSG:
msg = (Message)evt.Arg;
obj = msg.getHeader(HeaderType.TCPPING);
if (obj == null || !(obj is PingHeader))
{
passUp(evt);
return;
}
hdr = (PingHeader)msg.removeHeader(HeaderType.TCPPING);
switch (hdr.type)
{
case PingHeader.GET_MBRS_REQ:
if (!hdr.group_addr.Equals(group_addr))
{
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TcpPing.up()", "GET_MBRS_REQ from different group , so discarded");
}
return;
}
Address src = (Address)hdr.arg;
msg.Src = src;
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TCPPING.up()", "GET_MBRS_REQ from " + msg.Src.ToString());
}
lock (members.SyncRoot)
{
coord = members.Count > 0 ? (Address)members[0] : local_addr;
}
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TCPPING.up()", "my coordinator is " + coord.ToString());
}
rsp_msg = new Message(msg.Src, null, null);
rsp_hdr = new PingHeader(PingHeader.GET_MBRS_RSP, new PingRsp(local_addr, coord, Stack.IsOperational, Stack.IsOperational));
rsp_msg.putHeader(HeaderType.TCPPING, rsp_hdr);
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TCPPING.up()", "responding to GET_MBRS_REQ back to " + msg.Src.ToString());
}
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info(local_addr + " - [FIND_INITIAL_MBRS] replying PING request to " + rsp_msg.Dest);
}
passDown(new Event(Event.MSG, rsp_msg, Priority.Critical));
return;
case PingHeader.GET_MBRS_RSP: // add response to vector and notify waiting thread
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TCPPING.up()", "GET_MBRS_RSP from " + msg.Src.ToString());
}
rsp = (PingRsp)hdr.arg;
//muds:
//check if the received response is valid i.e. successful security authorization
//at other end.
if (rsp.OwnAddress == null && rsp.CoordAddress == null && rsp.HasJoined == false)
{
lock (initial_members.SyncRoot)
{
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TCPPING.up()", "I am not authorized to join to " + msg.Src.ToString());
}
System.Threading.Monitor.PulseAll(initial_members.SyncRoot);
}
}
else
{
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TCPPING.up()", "Before Adding initial members response");
}
lock (initial_members.SyncRoot)
{
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TCPPING.up()", "Adding initial members response");
}
if (!initial_members.Contains(rsp))
{
initial_members.Add(rsp);
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TCPPING.up()", "Adding initial members response for " + rsp.OwnAddress);
}
}
else
if (Stack.NCacheLog.IsInfoEnabled)
{
Stack.NCacheLog.Info("TcpPing.up()", "response already received");
}
System.Threading.Monitor.PulseAll(initial_members.SyncRoot);
}
}
return;
default:
Stack.NCacheLog.Warn("got TCPPING header with unknown type (" + hdr.type + ')');
return;
}
//goto case Event.SET_LOCAL_ADDRESS;
case Event.SET_LOCAL_ADDRESS:
passUp(evt);
local_addr = (Address)evt.Arg;
// Add own address to initial_hosts if not present: we must always be able to ping ourself !
if (initial_hosts != null && local_addr != null)
{
if (!initial_hosts.Contains(local_addr))
{
Stack.NCacheLog.Debug("[SET_LOCAL_ADDRESS]: adding my own address (" + local_addr + ") to initial_hosts; initial_hosts=" + Global.CollectionToString(initial_hosts));
initial_hosts.Add(local_addr);
}
}
break;
case Event.CONNECT_OK:
obj = evt.Arg;
if (obj != null && obj is Address)
{
tcpServerPort = ((Address)obj).Port;
}
passUp(evt);
break;
case Event.CONNECTION_NOT_OPENED:
if (mbrDiscoveryInProcess)
{
Address node = evt.Arg as Address;
PingRsp response = new PingRsp(node, node, true, false);
lock (initial_members.SyncRoot)
{
initial_members.Add(response);
System.Threading.Monitor.PulseAll(initial_members.SyncRoot);
}
Stack.NCacheLog.CriticalInfo(Name + ".up", "connection failure with " + node);
}
break;
// end services
default:
passUp(evt); // Pass up to the layer above us
break;
}
}
public override void up(Event evt)
{
Message msg, rsp_msg;
System.Object obj;
PingHeader hdr, rsp_hdr;
PingRsp rsp;
Address coord;
switch (evt.Type)
{
case Event.MSG:
msg = (Message) evt.Arg;
obj = msg.getHeader(HeaderType.TCPPING);
if (obj == null || !(obj is PingHeader))
{
passUp(evt);
return ;
}
hdr = (PingHeader)msg.removeHeader(HeaderType.TCPPING);
switch (hdr.type)
{
case PingHeader.GET_MBRS_REQ:
if( !hdr.group_addr.Equals(group_addr))
{
if (Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TcpPing.up()", "GET_MBRS_REQ from different group , so discarded");
return;
}
Address src = (Address) hdr.arg;
msg.Src = src;
if(Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TCPPING.up()", "GET_MBRS_REQ from " + msg.Src.ToString());
lock (members.SyncRoot)
{
coord = members.Count > 0 ? (Address)members[0] : local_addr;
}
if(Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TCPPING.up()", "my coordinator is " + coord.ToString());
rsp_msg = new Message(msg.Src, null, null);
rsp_hdr = new PingHeader(PingHeader.GET_MBRS_RSP, new PingRsp(local_addr, coord, Stack.IsOperational,Stack.IsOperational));
rsp_msg.putHeader(HeaderType.TCPPING, rsp_hdr);
if(Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TCPPING.up()", "responding to GET_MBRS_REQ back to " + msg.Src.ToString());
if (Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info(local_addr + " - [FIND_INITIAL_MBRS] replying PING request to " + rsp_msg.Dest);
passDown(new Event(Event.MSG, rsp_msg, Priority.Critical));
return ;
case PingHeader.GET_MBRS_RSP: // add response to vector and notify waiting thread
if(Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TCPPING.up()", "GET_MBRS_RSP from " + msg.Src.ToString());
rsp = (PingRsp) hdr.arg;
//muds:
//check if the received response is valid i.e. successful security authorization
//at other end.
if (rsp.OwnAddress == null && rsp.CoordAddress == null && rsp.HasJoined == false)
{
lock (initial_members.SyncRoot)
{
if (Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TCPPING.up()", "I am not authorized to join to " + msg.Src.ToString());
System.Threading.Monitor.PulseAll(initial_members.SyncRoot);
}
}
else
{
if (Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TCPPING.up()", "Before Adding initial members response");
lock (initial_members.SyncRoot)
{
if (Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TCPPING.up()", "Adding initial members response");
if (!initial_members.Contains(rsp))
{
initial_members.Add(rsp);
if (Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TCPPING.up()", "Adding initial members response for " + rsp.OwnAddress);
}
else
if (Stack.NCacheLog.IsInfoEnabled) Stack.NCacheLog.Info("TcpPing.up()", "response already received");
System.Threading.Monitor.PulseAll(initial_members.SyncRoot);
}
}
return ;
default:
Stack.NCacheLog.Warn("got TCPPING header with unknown type (" + hdr.type + ')');
return ;
}
//goto case Event.SET_LOCAL_ADDRESS;
case Event.SET_LOCAL_ADDRESS:
passUp(evt);
local_addr = (Address) evt.Arg;
// Add own address to initial_hosts if not present: we must always be able to ping ourself !
if (initial_hosts != null && local_addr != null)
{
if (!initial_hosts.Contains(local_addr))
{
Stack.NCacheLog.Debug("[SET_LOCAL_ADDRESS]: adding my own address (" + local_addr + ") to initial_hosts; initial_hosts=" + Global.CollectionToString(initial_hosts));
initial_hosts.Add(local_addr);
}
}
break;
case Event.CONNECT_OK:
obj = evt.Arg;
if(obj != null && obj is Address)
{
tcpServerPort = ((Address)obj).Port;
}
passUp(evt);
break;
case Event.CONNECTION_NOT_OPENED:
if (mbrDiscoveryInProcess)
{
Address node = evt.Arg as Address;
PingRsp response = new PingRsp(node, node, true, false);
lock (initial_members.SyncRoot)
{
initial_members.Add(response);
System.Threading.Monitor.PulseAll(initial_members.SyncRoot);
}
Stack.NCacheLog.CriticalInfo(Name + ".up", "connection failure with " + node);
}
break;
// end services
default:
passUp(evt); // Pass up to the layer above us
break;
}
}
