i2pd/tunnel/TunnelGateway.h

#ifndef TUNNEL_GATEWAY_H__
#define TUNNEL_GATEWAY_H__

#include <inttypes.h>
#include <vector>
#include <memory>
#include "I2NPProtocol.h"
#include "TunnelBase.h"

namespace i2p
{
namespace tunnel
{
    class TunnelGatewayBuffer
    {
        public:
            TunnelGatewayBuffer (uint32_t tunnelID);
            ~TunnelGatewayBuffer ();
            void PutI2NPMsg (const TunnelMessageBlock& block);  
            const std::vector<std::shared_ptr<I2NPMessage> >& GetTunnelDataMsgs () const { return m_TunnelDataMsgs; };
            void ClearTunnelDataMsgs ();
            void CompleteCurrentTunnelDataMessage ();

        private:

            void CreateCurrentTunnelDataMessage ();
            
        private:

            uint32_t m_TunnelID;
            std::vector<std::shared_ptr<I2NPMessage> > m_TunnelDataMsgs;
            std::shared_ptr<I2NPMessage> m_CurrentTunnelDataMsg;
            size_t m_RemainingSize;
            uint8_t m_NonZeroRandomBuffer[TUNNEL_DATA_MAX_PAYLOAD_SIZE];
    };  

    class TunnelGateway
    {
        public:

            TunnelGateway (TunnelBase * tunnel):
                m_Tunnel (tunnel), m_Buffer (tunnel->GetNextTunnelID ()), m_NumSentBytes (0) {};
            void SendTunnelDataMsg (const TunnelMessageBlock& block);   
            void PutTunnelDataMsg (const TunnelMessageBlock& block);
            void SendBuffer ();         
            size_t GetNumSentBytes () const { return m_NumSentBytes; };
        
        private:

            TunnelBase * m_Tunnel;
            TunnelGatewayBuffer m_Buffer;
            size_t m_NumSentBytes;
    };  
}       
}   

#endif