i2pd/core/Profiling.h

#ifndef PROFILING_H__
#define PROFILING_H__

#include <memory>
#include <boost/date_time/posix_time/posix_time.hpp>
#include "Identity.h"

namespace i2p
{
namespace data
{   
    const char PEER_PROFILES_DIRECTORY[] = "peerProfiles";
    const char PEER_PROFILE_PREFIX[] = "profile-";
    // sections
    const char PEER_PROFILE_SECTION_PARTICIPATION[] = "participation";
    const char PEER_PROFILE_SECTION_USAGE[] = "usage";
    // params   
    const char PEER_PROFILE_LAST_UPDATE_TIME[] = "lastupdatetime";
    const char PEER_PROFILE_PARTICIPATION_AGREED[] = "agreed";
    const char PEER_PROFILE_PARTICIPATION_DECLINED[] = "declined";
    const char PEER_PROFILE_PARTICIPATION_NON_REPLIED[] = "nonreplied"; 
    const char PEER_PROFILE_USAGE_TAKEN[] = "taken";
    const char PEER_PROFILE_USAGE_REJECTED[] = "rejected";

    const int PEER_PROFILE_EXPIRATION_TIMEOUT = 72; // in hours (3 days)
    
    class RouterProfile
    {
        public:

            RouterProfile (const IdentHash& identHash);
            RouterProfile& operator= (const RouterProfile& ) = default;
            
            void Save ();
            void Load ();

            bool IsBad ();
            
            void TunnelBuildResponse (uint8_t ret);
            void TunnelNonReplied ();

        private:

            boost::posix_time::ptime GetTime () const;
            void UpdateTime ();

            bool IsAlwaysDeclining () const { return !m_NumTunnelsAgreed && m_NumTunnelsDeclined >= 5; };
            bool IsLowPartcipationRate () const;
            bool IsLowReplyRate () const;
            
        private:    

            IdentHash m_IdentHash;
            boost::posix_time::ptime m_LastUpdateTime;
            // participation
            uint32_t m_NumTunnelsAgreed;
            uint32_t m_NumTunnelsDeclined;  
            uint32_t m_NumTunnelsNonReplied;
            // usage
            uint32_t m_NumTimesTaken;
            uint32_t m_NumTimesRejected;    
    };  

    std::shared_ptr<RouterProfile> GetRouterProfile (const IdentHash& identHash); 
    void DeleteObsoleteProfiles ();
}       
}   

#endif