Implement #243, separate core/client (PCH support dropped for now)

core/tunnel/TunnelBase.h

@@ -0,0 +1,69 @@
+#ifndef TUNNEL_BASE_H__
+#define TUNNEL_BASE_H__
+
+#include <inttypes.h>
+#include <memory>
+#include "util/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;
+        std::shared_ptr<I2NPMessage> data;
+    };
+
+    class TunnelBase
+    {
+        public:
+
+            //WARNING!!! GetSecondsSinceEpoch() return uint64_t
+            TunnelBase (): m_CreationTime (i2p::util::GetSecondsSinceEpoch ()) {};
+            virtual ~TunnelBase () {};
+            
+            virtual void HandleTunnelDataMsg (std::shared_ptr<const i2p::I2NPMessage> tunnelMsg) = 0;
+            virtual void SendTunnelDataMsg (std::shared_ptr<i2p::I2NPMessage> msg) = 0;
+            virtual void FlushTunnelDataMsgs () {};
+            virtual void EncryptTunnelMsg (std::shared_ptr<const I2NPMessage> in, std::shared_ptr<I2NPMessage> out) = 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