restructure build to separate the 3 main components into 3 subdirectories

libi2pd for core libs

libi2pd_client for i2pd client libs

daemon for i2pd daemon libs

libi2pd/LeaseSet.h

@@ -0,0 +1,131 @@
+#ifndef LEASE_SET_H__
+#define LEASE_SET_H__
+
+#include <inttypes.h>
+#include <string.h>
+#include <vector>
+#include <set>
+#include <memory>
+#include "Identity.h"
+#include "Timestamp.h"
+
+namespace i2p
+{
+
+namespace tunnel
+{
+	class InboundTunnel;	
+}
+
+namespace data
+{	
+	const int LEASE_ENDDATE_THRESHOLD = 51000; // in milliseconds
+	struct Lease
+	{
+		IdentHash tunnelGateway;
+		uint32_t tunnelID;
+		uint64_t endDate; // 0 means invalid
+		bool isUpdated; // trasient
+		/* return true if this lease expires within t millisecond + fudge factor */
+		bool ExpiresWithin( const uint64_t t, const uint64_t fudge = 1000 ) const {
+			auto expire = i2p::util::GetMillisecondsSinceEpoch ();
+			if(fudge) expire += rand() % fudge;
+			if (endDate < expire) return true;
+			return (endDate - expire) < t;
+		}
+	};	
+
+	struct LeaseCmp
+	{
+		bool operator() (std::shared_ptr<const Lease> l1, std::shared_ptr<const Lease> l2) const
+  		{	
+			if (l1->tunnelID != l2->tunnelID)
+				return l1->tunnelID < l2->tunnelID; 
+			else
+				return l1->tunnelGateway < l2->tunnelGateway; 
+		};
+	};	
+
+  typedef std::function<bool(const Lease & l)> LeaseInspectFunc;
+  
+	const size_t MAX_LS_BUFFER_SIZE = 3072;
+	const size_t LEASE_SIZE = 44; // 32 + 4 + 8
+	const uint8_t MAX_NUM_LEASES = 16;		
+	class LeaseSet: public RoutingDestination
+	{
+		public:
+
+			LeaseSet (const uint8_t * buf, size_t len, bool storeLeases = true);
+			~LeaseSet () { delete[] m_Buffer; };
+			void Update (const uint8_t * buf, size_t len);
+			bool IsNewer (const uint8_t * buf, size_t len) const;
+			void PopulateLeases (); // from buffer
+			std::shared_ptr<const IdentityEx> GetIdentity () const { return m_Identity; };			
+
+			const uint8_t * GetBuffer () const { return m_Buffer; };
+			size_t GetBufferLen () const { return m_BufferLen; };	
+			bool IsValid () const { return m_IsValid; };
+			const std::vector<std::shared_ptr<const Lease> > GetNonExpiredLeases (bool withThreshold = true) const;
+      const std::vector<std::shared_ptr<const Lease> > GetNonExpiredLeasesExcluding (LeaseInspectFunc exclude, bool withThreshold = true)  const;
+			bool HasExpiredLeases () const;
+			bool IsExpired () const;
+			bool IsEmpty () const { return m_Leases.empty (); };
+			uint64_t GetExpirationTime () const { return m_ExpirationTime; };
+			bool ExpiresSoon(const uint64_t dlt=1000 * 5, const uint64_t fudge = 0) const ;
+			bool operator== (const LeaseSet& other) const 
+			{ return m_BufferLen == other.m_BufferLen && !memcmp (m_Buffer, other.m_Buffer, m_BufferLen); }; 
+
+			// implements RoutingDestination
+			const IdentHash& GetIdentHash () const { return m_Identity->GetIdentHash (); };
+			const uint8_t * GetEncryptionPublicKey () const { return m_EncryptionKey; };
+			bool IsDestination () const { return true; };
+
+		private:
+
+			void ReadFromBuffer (bool readIdentity = true);
+			uint64_t ExtractTimestamp (const uint8_t * buf, size_t len) const; // min expiration time
+			
+		private:
+
+			bool m_IsValid, m_StoreLeases; // we don't need to store leases for floodfill
+			std::set<std::shared_ptr<Lease>, LeaseCmp> m_Leases;
+			uint64_t m_ExpirationTime; // in milliseconds
+			std::shared_ptr<const IdentityEx> m_Identity;
+			uint8_t m_EncryptionKey[256];
+			uint8_t * m_Buffer;
+			size_t m_BufferLen;
+	};	
+
+	class LocalLeaseSet
+	{
+		public:
+
+			LocalLeaseSet (std::shared_ptr<const IdentityEx> identity, const uint8_t * encryptionPublicKey, std::vector<std::shared_ptr<i2p::tunnel::InboundTunnel> > tunnels);
+			LocalLeaseSet (std::shared_ptr<const IdentityEx> identity, const uint8_t * buf, size_t len);
+			~LocalLeaseSet () { delete[] m_Buffer; };
+
+			const uint8_t * GetBuffer () const { return m_Buffer; };
+			uint8_t * GetSignature () { return m_Buffer + m_BufferLen - GetSignatureLen (); }; 
+			size_t GetBufferLen () const { return m_BufferLen; };	
+			size_t GetSignatureLen () const { return m_Identity->GetSignatureLen (); };
+			uint8_t * GetLeases () { return m_Leases; }; 
+			
+			const IdentHash& GetIdentHash () const { return m_Identity->GetIdentHash (); };
+			bool IsExpired () const;
+			uint64_t GetExpirationTime () const { return m_ExpirationTime; };
+			void SetExpirationTime (uint64_t expirationTime) { m_ExpirationTime = expirationTime; };
+			bool operator== (const LeaseSet& other) const 
+			{ return m_BufferLen == other.GetBufferLen ()  && !memcmp (other.GetBuffer (), other.GetBuffer (), m_BufferLen); }; 
+
+
+		private:
+			
+			uint64_t m_ExpirationTime; // in milliseconds
+			std::shared_ptr<const IdentityEx> m_Identity;
+			uint8_t * m_Buffer, * m_Leases;
+			size_t m_BufferLen;
+	}; 
+}		
+}	
+
+#endif