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+
+// LuaTCPLink.h
+
+// Declares the cLuaTCPLink class representing a Lua wrapper for the cTCPLink class and the callbacks it needs
+
+
+
+
+
+#pragma once
+
+#include "../OSSupport/Network.h"
+#include "LuaState.h"
+#include "PluginLua.h"
+
+
+
+
+
+class cLuaTCPLink:
+ public cNetwork::cConnectCallbacks,
+ public cTCPLink::cCallbacks
+{
+public:
+ /** Creates a new instance of the link, attached to the specified lua state and wrapping the callbacks that are in a table at the specified stack pos. */
+ cLuaTCPLink(cPluginLua & a_Plugin, int a_CallbacksTableStackPos);
+
+ /** Sends the data contained in the string to the remote peer.
+ Returns true if successful, false on immediate failure (queueing the data failed or link not available). */
+ bool Send(const AString & a_Data);
+
+ /** Returns the IP address of the local endpoint of the connection. */
+ AString GetLocalIP(void) const;
+
+ /** Returns the port used by the local endpoint of the connection. */
+ UInt16 GetLocalPort(void) const;
+
+ /** Returns the IP address of the remote endpoint of the connection. */
+ AString GetRemoteIP(void) const;
+
+ /** Returns the port used by the remote endpoint of the connection. */
+ UInt16 GetRemotePort(void) const;
+
+ /** Closes the link gracefully.
+ The link will send any queued outgoing data, then it will send the FIN packet.
+ The link will still receive incoming data from remote until the remote closes the connection. */
+ void Shutdown(void);
+
+ /** Drops the connection without any more processing.
+ Sends the RST packet, queued outgoing and incoming data is lost. */
+ void Close(void);
+
+protected:
+ /** The plugin for which the link is created. */
+ cPluginLua & m_Plugin;
+
+ /** The Lua table that holds the callbacks to be invoked. */
+ cLuaState::cRef m_Callbacks;
+
+ /** The underlying link representing the connection.
+ May be nullptr. */
+ cTCPLinkPtr m_Link;
+
+ // cNetwork::cConnectCallbacks overrides:
+ virtual void OnConnected(cTCPLink & a_Link) override;
+ virtual void OnError(int a_ErrorCode, const AString & a_ErrorMsg) override;
+
+ // cTCPLink::cCallbacks overrides:
+ virtual void OnLinkCreated(cTCPLinkPtr a_Link) override;
+ virtual void OnReceivedData(const char * a_Data, size_t a_Length) override;
+ virtual void OnRemoteClosed(void) override;
+ // The OnError() callback is shared with cNetwork::cConnectCallbacks
+};
+
+
+
+