new server adding code done (untested)

dns.cpp

@@ -22,7 +22,8 @@ std::unique_ptr<Server> server;
 
 enum RequestType {
     GETADDRESS,
-    ADDADDRESS
+    ADDADDRESS,
+    UPDATEFINGERTABLES
 };
 
 class DNSData {
@@ -36,7 +37,7 @@ public:
             status = PROCESS;
             if(reqType==GETADDRESS)
                 service->RequestGETADDRESS(&context, &null, &getAddressResponder, cq, cq, this);
-            else
+            else if(reqType==ADDADDRESS)
                 service->RequestADDADDRESS(&context, &info, &addAddressResponder, cq, cq, this);
         }
         else if (status == PROCESS) {
@@ -62,7 +63,7 @@ public:
                 }
                 getAddressResponder.Finish(info,Status::OK,this);
             }
-            else {
+            else if(reqType==ADDADDRESS){
                 ofstream fout;
                 fout.open(SERVERS,ios::app);
                 fout<<info.address()<<endl;
@@ -70,6 +71,8 @@ public:
                 null.set_nothing(0);
                 addAddressResponder.Finish(null,Status::OK,this);
             }
+            else {
+            }
             status = FINISH;
         }
         else {
@@ -124,6 +127,7 @@ int main(int argc,char **argv) {
     cout<<"DNS SERVER COMES UP SUCCESSFULLY"<<endl;
     new DNSData(&service,comp_queue.get(),GETADDRESS);
     new DNSData(&service,comp_queue.get(),ADDADDRESS);
+    new DNSData(&service,comp_queue.get(),UPDATEFINGERTABLES);
     void *tag;
     bool ok;
     while(true) {

keyvaluestore.proto

@@ -9,9 +9,13 @@ service KeyValueServices {
     rpc PUT(KeyValue) returns (ReqStatus) {}
     rpc DEL(Key) returns (ReqStatus) {}
     rpc NEW(Info) returns (SuccessorInfo) {}
-    rpc INFORM(Info) returns (KeyValues) {}
+    rpc INFORMSUCCESSOR(Info) returns (KeyValues) {}
+    rpc INFORMPREDECESSOR(Info) returns (Null) {}
     rpc GETADDRESS(Null) returns (Info) {}
     rpc ADDADDRESS(Info) returns (Null) {}
+    rpc UPDATEFINGERTABLES(Null) returns (Null) {}
+    rpc GETSUCCESSOR(Id) returns (Id) {}
+    rpc GETPREDECESSOR(Id) returns (Id) {}
 }
 
 message Key {
@@ -39,7 +43,8 @@ message Info {
 }
 
 message SuccessorInfo {
-    string address = 1;
+    string succaddress = 1;
+    string predaddress = 2;
 }
 
 message KeyValues {
@@ -49,4 +54,8 @@ message KeyValues {
 
 message Null {
     int32 nothing = 1;
+}
+
+message Id {
+    int64 id = 1;
 }
\ No newline at end of file