splitting keyvalues template made

Backend.h

@@ -20,6 +20,9 @@ public:
     virtual void pushAll() {
         return;
     }
+    virtual string getKeyValuePairs(int id) {
+        return "This will never run";
+    }
 };
 
 class storageLRU : public memoryManagement {
@@ -57,6 +60,10 @@ public:
     void pushAll() {
         mycache.pushAll();
     }
+
+    string getKeyValuePairs(int id) {
+        return "keyvaluepairs";
+    }
 };
 
 class storageLFU : public memoryManagement {
@@ -93,4 +100,8 @@ public:
     void pushAll() {
         mycache.pushAll();
     }
+
+    string getKeyValuePairs(int id) {
+        return "keyvaluepairs";
+    }
 };
\ No newline at end of file

keyvaluestore.proto

@@ -50,8 +50,8 @@ message SuccessorInfo {
 }
 
 message KeyValues {
-    repeated string keys = 1;
-    repeated string values = 2;
+    string keys = 1;
+    string values = 2;
 }
 
 message Null {

server.cpp

@@ -214,9 +214,12 @@ public:
             }
             else if(reqType==INFORMSUCCESSOR){
                 //return half of the keyvalue pairs to the requesting node
-                //cout<<"Okay, my new predecessor is: "<<info.address()<<endl;
                 string address=info.address();
                 int id=stoi(address.substr(address.find(':')+1));
+                string keyvalues=memManager->getKeyValuePairs(id);
+                string keys=keyvalues.substr(0,keyvalues.find(";;")+1);
+                string values=keyvalues.substr(keyvalues.find(";;")+2);
+                //cout<<"Okay, my new predecessor is: "<<info.address()<<endl;
                 ifstream fin;
                 fin.open(NEIGHBOURS);
                 string successor,predecessor;
@@ -229,7 +232,8 @@ public:
                 fout<<successor<<endl;
                 fout<<predecessor<<endl;
                 fout.close();
-                null.set_nothing(0);
+                keyValues.set_keys(keys);
+                keyValues.set_values(values);
                 //cout<<"Done making changes accordingly"<<endl;
                 informSuccessorResponder.Finish(keyValues,Status::OK,this);
             }
@@ -1340,6 +1344,19 @@ void register_server_DNS(string my_address) {
             ClientContext context2;
             //cout<<"Informing successor about my presence"<<endl;
             status=stub->INFORMSUCCESSOR(&context2,info,&keyValues);
+            string keys=keyValues.keys();
+            string values=keyValues.values();
+            while(true) {
+                string key=keys.substr(0,keys.find(';'));
+                string value=values.substr(0,values.find(';'));
+                if(key.size()==0)
+                    break;
+                if(keys.find(';')+1==keys.size())
+                    break;
+                keys=keys.substr(keys.find(';')+1);
+                values=values.substr(values.find(';')+1);
+                memManager->put(key,value);
+            }
             //cout<<"Informed succesor"<<endl;
             channel=grpc::CreateChannel(predecessor,grpc::InsecureChannelCredentials());
             stub=KeyValueServices::NewStub(channel);