member_node.h

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#pragma once
#include <string.h>
 
#include <iostream>
#include <map>
#include <string>
#include <unordered_map>
#include <thread>
 
#include "buffer.h"
#include "gossip_artifact.h"
#include "membership_list.h"
#include "requests.h"
 
#define HEARTBEAT_PERIOD 100
#define GOSSIP_K 2
 
class MemberNode {
    Member myMember;
    MembershipList memberList;
    std::thread tid;
 
    std::unordered_map<std::string, GossipArtifact*> gossipArtifacts;
    std::mutex lock;
 
   public:
    MembershipList getList();
 
    void addIntroducer(std::string ip, int port);
 
    MemberNode(Address myAddress, int startRange = -1);
 
    void registerArtifact(GossipArtifact& artifact);
 
    Buffer generateGossipPayload();
 
    int heartbeat();
 
    void loop();
 
    int sendMemberList(Member& member, Buffer &data);
 
    void receiveGossip(int connection);
 
    std::vector<int> selectKItems(int n, int k);
 
    Address getNearestNode(int key);
    Address getAddress() { return myMember.address; }
    void threadLoop();
};