i2pd/TunnelBase.h
2015-01-27 14:55:46 -05:00

70 lines
1.7 KiB
C++

#ifndef TUNNEL_BASE_H__
#define TUNNEL_BASE_H__
#include <inttypes.h>
#include <memory>
#include "Timestamp.h"
#include "I2NPProtocol.h"
#include "Identity.h"
namespace i2p
{
namespace tunnel
{
const size_t TUNNEL_DATA_MSG_SIZE = 1028;
const size_t TUNNEL_DATA_ENCRYPTED_SIZE = 1008;
const size_t TUNNEL_DATA_MAX_PAYLOAD_SIZE = 1003;
enum TunnelDeliveryType
{
eDeliveryTypeLocal = 0,
eDeliveryTypeTunnel = 1,
eDeliveryTypeRouter = 2
};
struct TunnelMessageBlock
{
TunnelDeliveryType deliveryType;
i2p::data::IdentHash hash;
uint32_t tunnelID;
I2NPMessage * data;
};
class TunnelBase
{
public:
//WARNING!!! GetSecondsSinceEpoch() return uint64_t
TunnelBase (): m_CreationTime (i2p::util::GetSecondsSinceEpoch ()) {};
virtual ~TunnelBase () {};
virtual void HandleTunnelDataMsg (i2p::I2NPMessage * tunnelMsg) = 0;
virtual void SendTunnelDataMsg (i2p::I2NPMessage * msg) = 0;
virtual void FlushTunnelDataMsgs () {};
virtual void EncryptTunnelMsg (I2NPMessage * tunnelMsg) = 0;
virtual uint32_t GetNextTunnelID () const = 0;
virtual const i2p::data::IdentHash& GetNextIdentHash () const = 0;
virtual uint32_t GetTunnelID () const = 0; // as known at our side
uint32_t GetCreationTime () const { return m_CreationTime; };
void SetCreationTime (uint32_t t) { m_CreationTime = t; };
private:
uint32_t m_CreationTime; // seconds since epoch
};
struct TunnelCreationTimeCmp
{
bool operator() (std::shared_ptr<const TunnelBase> t1, std::shared_ptr<const TunnelBase> t2) const
{
if (t1->GetCreationTime () != t2->GetCreationTime ())
return t1->GetCreationTime () > t2->GetCreationTime ();
else
return t1 < t2;
};
};
}
}
#endif