Removed unused client code from Duet 2 builds to save flash space

src/Networking/Network.cpp

@@ -86,7 +86,10 @@ void MacAddress::SetFromBytes(const uint8_t mb[6]) noexcept
 // Network members
 Network::Network(Platform& p) noexcept : platform(p)
 #if HAS_RESPONDERS
-			, responders(nullptr), clients(nullptr), nextResponderToPoll(nullptr)
+			, responders(nullptr), nextResponderToPoll(nullptr)
+#endif
+#if HAS_CLIENTS
+			, clients(nullptr)
 #endif
 {
 #if HAS_NETWORKING
@@ -239,6 +242,7 @@ GCodeResult Network::EnableProtocol(unsigned int interface, NetworkProtocol prot
 #if HAS_NETWORKING
 	if (interface < GetNumNetworkInterfaces())
 	{
+# if HAS_CLIENTS
 		bool hasFree = false;
 		bool client = false;
 		// Check if there are enough clients to accomodate enabling the protocol. Check if
@@ -262,7 +266,7 @@ GCodeResult Network::EnableProtocol(unsigned int interface, NetworkProtocol prot
 			reply.printf("No more instances for client protocol.\n");
 			return GCodeResult::error;
 		}
-
+# endif
 		return interfaces[interface]->EnableProtocol(protocol, port, ip, secure, reply);
 	}
 
@@ -281,6 +285,7 @@ GCodeResult Network::DisableProtocol(unsigned int interface, NetworkProtocol pro
 	{
 		bool client = false;
 
+# if HAS_CLIENTS
 		// Check if a client handles the protocol. If so, termination is handled
 		// by the client itself, after attempting to disconnect gracefully.
 		for (NetworkClient *c = clients; c != nullptr; c = c->GetNext())
@@ -291,57 +296,58 @@ GCodeResult Network::DisableProtocol(unsigned int interface, NetworkProtocol pro
 				break;
 			}
 		}
+# endif
 
 		NetworkInterface * const iface = interfaces[interface];
 		const GCodeResult ret = iface->DisableProtocol(protocol, reply, !client);
 
 		if (ret == GCodeResult::ok)
 		{
-#if HAS_RESPONDERS
+# if HAS_RESPONDERS
 			if (!client)
 			{
 				TerminateResponders(iface, protocol);
 			}
 
 			switch (protocol)
 			{
-#if SUPPORT_HTTP
+#  if SUPPORT_HTTP
 			case HttpProtocol:
 				HttpResponder::DisableInterface(iface);			// free up output buffers etc.
 				break;
-#endif
+#  endif
 
-#if SUPPORT_FTP
+#  if SUPPORT_FTP
 			case FtpProtocol:
 				// TODO the following isn't quite right, because we shouldn't free up output buffers if another network interface is still serving this protocol.
 				FtpResponder::Disable();
 				break;
-#endif
+#  endif
 
-#if SUPPORT_TELNET
+#  if SUPPORT_TELNET
 			case TelnetProtocol:
 				// TODO the following isn't quite right, because we shouldn't free up output buffers if another network interface is still serving this protocol.
 				TelnetResponder::Disable();
 				break;
-#endif
+#  endif
 
-#if SUPPORT_MULTICAST_DISCOVERY
+#  if SUPPORT_MULTICAST_DISCOVERY
 				// TODO the following isn't quite right, because we shouldn't free up output buffers if another network interface is still serving this protocol.
 			case MulticastDiscoveryProtocol:
 				break;
-#endif
+#  endif
 
-#if SUPPORT_MQTT
+#  if SUPPORT_MQTT
 			case MqttProtocol:
 				// TODO the following isn't quite right, because we shouldn't free up output buffers if another network interface is still serving this protocol.
 				MqttClient::Disable();
 				break;
-#endif
+#  endif
 
 			default:
 				break;
 			}
-#endif // HAS_RESPONDERS
+# endif // HAS_RESPONDERS
 		}
 		return ret;
 	}
@@ -740,11 +746,8 @@ bool Network::UsingDhcp(unsigned int interface) const noexcept
 	return interface < GetNumNetworkInterfaces() && interfaces[interface]->UsingDhcp();
 }
 
-#endif
-
 void Network::SetHostname(const char *name) noexcept
 {
-#if HAS_NETWORKING
 	size_t i = 0;
 	while (*name && i < ARRAY_UPB(hostname))
 	{
@@ -776,11 +779,8 @@ void Network::SetHostname(const char *name) noexcept
 			iface->UpdateHostname(hostname);
 		}
 	}
-#endif
 }
 
-#if HAS_NETWORKING
-
 // Net the MAC address. Pass -1 as the interface number to set the default MAC address for interfaces that don't have one.
 GCodeResult Network::SetMacAddress(unsigned int interface, const MacAddress& mac, const StringRef& reply) noexcept
 {
@@ -820,7 +820,7 @@ bool Network::FindResponder(Socket *skt, NetworkProtocol protocol) noexcept
 
 bool Network::StartClient(NetworkInterface *interface, NetworkProtocol protocol) noexcept
 {
-#if HAS_RESPONDERS
+#if HAS_CLIENTS
 	for (NetworkClient *c = clients; c != nullptr; c = c->GetNext())
 	{
 		if (c->Start(protocol, interface))
@@ -834,7 +834,7 @@ bool Network::StartClient(NetworkInterface *interface, NetworkProtocol protocol)
 
 void Network::StopClient(NetworkInterface *interface, NetworkProtocol protocol) noexcept
 {
-#if HAS_RESPONDERS
+#if HAS_CLIENTS
 	for (NetworkClient *c = clients; c != nullptr; c = c->GetNext())
 	{
 		c->Stop(protocol, interface);

src/Networking/Network.h

@@ -38,8 +38,6 @@ const size_t NumTelnetResponders = 1;	// the number of concurrent Telnet session
 
 const size_t NumFtpResponders = 1;		// the number of concurrent FTP sessions we support
 
-#define HAS_RESPONDERS	(SUPPORT_HTTP || SUPPORT_FTP || SUPPORT_TELNET)
-
 // Forward declarations
 class NetworkResponder;
 class NetworkClient;
@@ -146,10 +144,13 @@ class Network INHERIT_OBJECT_MODEL
 
 #if HAS_RESPONDERS
 	NetworkResponder *responders;
-	NetworkClient *clients;
 	NetworkResponder *nextResponderToPoll;
 #endif
 
+#if HAS_CLIENTS
+	NetworkClient *clients;
+#endif
+
 #if SUPPORT_HTTP
 	Mutex httpMutex;
 #endif

src/Networking/NetworkClient.cpp

@@ -6,6 +6,9 @@
  */
 
 #include "NetworkClient.h"
+
+#if HAS_CLIENTS
+
 #include "Socket.h"
 #include <Platform/Platform.h>
 
@@ -106,3 +109,7 @@ void NetworkClient::ConnectionLost() noexcept
 }
 
 NetworkClient *NetworkClient::clients = nullptr;
+
+#endif
+
+// End

src/Networking/NetworkClient.h

@@ -11,6 +11,8 @@
 #include <RepRapFirmware.h>
 #include "NetworkResponder.h"
 
+#if HAS_CLIENTS
+
 // Forward declarations
 class NetworkClient;
 class NetworkInterface;
@@ -51,4 +53,6 @@ class NetworkClient : public NetworkResponder
 	static NetworkClient *clients;	// Head of the list of all network clients
 };
 
+#endif
+
 #endif /* SRC_NETWORKING_NETWORKCLIENT_H_ */

src/Networking/NetworkDefs.h

@@ -10,6 +10,9 @@
 
 #include <General/IPAddress.h>
 
+#define HAS_RESPONDERS	(SUPPORT_HTTP || SUPPORT_FTP || SUPPORT_TELNET)
+#define HAS_CLIENTS		(SUPPORT_MQTT)
+
 class NetworkBuffer;
 
 typedef uint8_t SocketNumber;