[raknet] Add TCPInterface class

* Adds TCPInterface ctor
* Adds `TCPInterface::Receive()`
* Adds `TCPInterface::HasLostConnection()`

raknet/NetworkTypes.h

@@ -13,11 +13,30 @@ typedef unsigned int RakNetTime;
 typedef long long RakNetTimeNS;
 #endif
 
+/// \brief Unique identifier for a system.
+/// Corresponds to a network address
+struct RAK_DLL_EXPORT PlayerID
+{
+	char _gap0[6];
+};
+
+/// This represents a user message from another system.
+struct Packet
+{
+	char _gap0;
+};
+
 struct RPCParameters
 {
 	char _gap0; // TODO: RPCParameters
 };
 
+/// Index of an invalid PlayerID
+const PlayerID UNASSIGNED_PLAYER_ID =
+{
+	0xFFFFFFFF, 0xFFFF
+};
+
 /// \def REGISTER_STATIC_RPC
 /// \ingroup RAKNET_RPC
 /// Register a C function as a Remote procedure.

raknet/TCPInterface.cpp

@@ -0,0 +1,28 @@
+// TODO: Implement TCPInterface.cpp
+
+#include "TCPInterface.h"
+
+TCPInterface::TCPInterface()
+{
+}
+
+Packet* TCPInterface::Receive( void )
+{
+	if (isStarted==false)
+		return 0;
+	return incomingMessages.ReadLock();
+}
+PlayerID TCPInterface::HasLostConnection(void)
+{
+	PlayerID *out;
+	out = lostConnections.ReadLock();
+	if (out)
+	{
+		lostConnections.ReadUnlock();
+		return *out;
+	}
+	else
+	{
+		return UNASSIGNED_PLAYER_ID;
+	}
+}

raknet/TCPInterface.h

@@ -0,0 +1,31 @@
+// TODO: Implement TCPInterface.h
+
+#ifndef __SIMPLE_TCP_SERVER
+#define __SIMPLE_TCP_SERVER
+
+#include "NetworkTypes.h"
+#include "SingleProducerConsumer.h"
+#include "Export.h"
+
+/// \internal
+/// \brief As the name says, a simple multithreaded TCP server.  Used by TelnetTransport
+class RAK_DLL_EXPORT TCPInterface
+{
+public:
+	TCPInterface();
+
+	/// Returns data received
+	Packet* Receive( void );
+
+	/// Queued events of lost connections
+	PlayerID HasLostConnection(void);
+
+protected:
+	bool isStarted;
+
+	DataStructures::SingleProducerConsumer<Packet> incomingMessages;
+
+	DataStructures::SingleProducerConsumer<PlayerID> lostConnections;
+};
+
+#endif