public void UpdateInfo()
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
callback returnedValueOnUpdate = new callback();
callback.RemoteUpdateDelegate RemoteDelforUpdate1 = new callback.RemoteUpdateDelegate(server[0].UpdateInfo);
AsyncCallback RemoteCallbackOnUpdate = new AsyncCallback(returnedValueOnUpdate.OurRemoteUpdateCallBack);
IAsyncResult RemArForLookup1 = RemoteDelforUpdate1.BeginInvoke(RemoteCallbackOnUpdate, null);
callback.RemoteUpdateDelegate RemoteDelforUpdate2 = new callback.RemoteUpdateDelegate(server[1].UpdateInfo);
IAsyncResult RemArForLookup2 = RemoteDelforUpdate2.BeginInvoke(RemoteCallbackOnUpdate, null);
Log.Show(_username, "WAITING HERE FOR ONE SERVER");
returnedValueOnUpdate.waiter.WaitOne();
//returnedValueOnUpdate.waiter.Reset();
action.setinfo(returnedValueOnUpdate.info);
return;
}
private bool UnregisterUserFromOtherServers(string username)
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
bool status = action.UnregisterUser(username);
Log.Show(_username, "[UNREGISTER USER] Unregister user from self");
if (status == false)
{
Log.Show(_username, "[UNREGISTER USER] Unregister user at self failed!!");
}
callback returnedValueOnUnregister1 = new callback();
callback.RemoteAsyncDelegate RemoteDelForUnregister1 = new callback.RemoteAsyncDelegate(() => server[0].UnregisterUser(username));
AsyncCallback RemoteCallbackForUnregister1 = new AsyncCallback(returnedValueOnUnregister1.OurRemoteAsyncCallBack);
IAsyncResult RemAr1ForUnregister = RemoteDelForUnregister1.BeginInvoke(RemoteCallbackForUnregister1, null);
callback.RemoteAsyncDelegate RemoteDelForUnregister2 = new callback.RemoteAsyncDelegate(() => server[1].UnregisterUser(username));
IAsyncResult RemAr2ForUnregister = RemoteDelForUnregister2.BeginInvoke(RemoteCallbackForUnregister1, null);
Log.Show(_username, "[UNREGISTER USER] Waiting for one Server to return");
returnedValueOnUnregister1.waiter.WaitOne();
//returnedValueOnUnregister1.waiter.Reset();
if (returnedValueOnUnregister1._status == false)
{
Log.Show(_username, "[UNREGISTER USER] One of the servers failed to unregister!!");
returnedValueOnUnregister1.waiter.WaitOne();
//returnedValueOnUnregister1.waiter.Reset();
if (returnedValueOnUnregister1._status == false)
{
Log.Show(_username, "[UNREGISTER USER] Both the servers failed to unregister [WEIRD]");
return(false);
}
else
{
Log.Show(_username, "[UNREGISTER USER] One server successfully unregistered");
return(true);
}
}
else
{
Log.Show(_username, "[UNREGISTER USER] One server successfully unregistered");
return(true);
}
}
private bool RegisterInfoOnAllServer(ClientMetadata client)
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
callback returnedValueOnRegister1 = new callback();
callback.RemoteAsyncDelegate RemoteDelforRegister1 = new callback.RemoteAsyncDelegate(() => server[0].WriteClientMetadata(client));
AsyncCallback RemoteCallbackOnRegister1 = new AsyncCallback(returnedValueOnRegister1.OurRemoteAsyncCallBack);
IAsyncResult RemArForRegister1 = RemoteDelforRegister1.BeginInvoke(RemoteCallbackOnRegister1, null);
callback.RemoteAsyncDelegate RemoteDelforRegister2 = new callback.RemoteAsyncDelegate(() => server[1].WriteClientMetadata(client));
IAsyncResult RemArForRegister2 = RemoteDelforRegister2.BeginInvoke(RemoteCallbackOnRegister1, null);
action.WriteClientMetadata(client); //First Self Register
Log.Show(_username, "[REGISTER CLIENT] Registered on self!!");
Log.Show(_username, "[REGISTER CLIENT] Waiting for atleast one Server to return");
returnedValueOnRegister1.waiter.WaitOne();
//returnedValueOnRegister1.waiter.Reset();
if (returnedValueOnRegister1._status == false)
{
Log.Show(_username, "[REGISTER CLIENT] One of the Servers failed to register");
returnedValueOnRegister1.waiter.WaitOne();
// returnedValueOnRegister1.waiter.Reset();
if (returnedValueOnRegister1._status == false)
{
Log.Show(_username, "[REGISTER CLIENT] Both the Servers failed to register");
return(false);
}
else
{
Log.Show(_username, "[REGISTER CLIENT] One Server successfully registered");
return(true);
}
}
else
{
Log.Show(_username, "[REGISTER CLIENT] One Server successfully registered");
return(true);
}
}
private void WriteSequenceNumberOnOtherServers()
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
//Write generated sequence number to ourself.
TRYREWRITE: bool status = action.WriteSequenceNumber(_sequenceNumber,_username);
if (status == false)
{
Log.Show(_username, "[SEQ NUMBER] Generated sequence number write to ourself failed: " + _sequenceNumber);
_sequenceNumber++;
goto TRYREWRITE;
}
callback returnedValue1 = new callback();
try
{
callback.RemoteAsyncDelegate RemoteDel1 = new callback.RemoteAsyncDelegate(() => server[0].WriteSequenceNumber(_sequenceNumber, _username));
AsyncCallback RemoteCallback1 = new AsyncCallback(returnedValue1.OurRemoteAsyncCallBack);
IAsyncResult RemAr1 = RemoteDel1.BeginInvoke(RemoteCallback1, null);
callback.RemoteAsyncDelegate RemoteDel2 = new callback.RemoteAsyncDelegate(() => server[1].WriteSequenceNumber(_sequenceNumber, _username));
IAsyncResult RemAr2 = RemoteDel2.BeginInvoke(RemoteCallback1, null);
}
catch (Exception e)
{
Log.Show(_username, "EXCEPTION: " + e.Message);
}
Log.Show(_username, "WAITING HERE FOR FIRST SERVER");
returnedValue1.waiter.WaitOne();
//returnedValue1.waiter.Reset();
if (returnedValue1._status == false)
{
Log.Show(_username, "[SEQ NUMBER] One of the Servers failed to set the sequence number: " + _sequenceNumber);
Log.Show(_username, "WAITING HERE FOR SECOND SERVER ASSUMING FIRST RETURNED FALSE");
returnedValue1.waiter.WaitOne();
//returnedValue1.waiter.Reset();
Log.Show(_username, "STATUS" + returnedValue1._status);
if (returnedValue1._status == false )
{
Log.Show(_username, "[SEQ NUMBER] Both servers failed to set the sequence number: " + _sequenceNumber);
_sequenceNumber++;
goto TRYREWRITE; // try until you get a sequence number.
}
else
{
Log.Show(_username, "[SEQ NUMBER] One server successfully set the sequence number: " + _sequenceNumber);
}
}
else
{
Log.Show(_username, "[SEQ NUMBER] One of the servers successfully set the sequence number: " + _sequenceNumber);
}
}
private bool UnregisterUserFromOtherServers(string username)
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
bool status = action.UnregisterUser(username);
Log.Show(_username, "[UNREGISTER USER] Unregister user from self");
if (status == false)
{
Log.Show(_username, "[UNREGISTER USER] Unregister user at self failed!!");
}
callback returnedValueOnUnregister1 = new callback();
callback.RemoteAsyncDelegate RemoteDelForUnregister1 = new callback.RemoteAsyncDelegate(() => server[0].UnregisterUser(username));
AsyncCallback RemoteCallbackForUnregister1 = new AsyncCallback(returnedValueOnUnregister1.OurRemoteAsyncCallBack);
IAsyncResult RemAr1ForUnregister = RemoteDelForUnregister1.BeginInvoke(RemoteCallbackForUnregister1, null);
callback.RemoteAsyncDelegate RemoteDelForUnregister2 = new callback.RemoteAsyncDelegate(() => server[1].UnregisterUser(username));
IAsyncResult RemAr2ForUnregister = RemoteDelForUnregister2.BeginInvoke(RemoteCallbackForUnregister1, null);
Log.Show(_username, "[UNREGISTER USER] Waiting for one Server to return");
returnedValueOnUnregister1.waiter.WaitOne();
//returnedValueOnUnregister1.waiter.Reset();
if (returnedValueOnUnregister1._status == false)
{
Log.Show(_username, "[UNREGISTER USER] One of the servers failed to unregister!!");
returnedValueOnUnregister1.waiter.WaitOne();
//returnedValueOnUnregister1.waiter.Reset();
if (returnedValueOnUnregister1._status == false)
{
Log.Show(_username, "[UNREGISTER USER] Both the servers failed to unregister [WEIRD]");
return false;
}
else
{
Log.Show(_username, "[UNREGISTER USER] One server successfully unregistered");
return true;
}
}
else
{
Log.Show(_username, "[UNREGISTER USER] One server successfully unregistered");
return true;
}
}
private bool RegisterInfoOnAllServer(ClientMetadata client)
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
callback returnedValueOnRegister1 = new callback();
callback.RemoteAsyncDelegate RemoteDelforRegister1 = new callback.RemoteAsyncDelegate(() => server[0].WriteClientMetadata(client));
AsyncCallback RemoteCallbackOnRegister1 = new AsyncCallback(returnedValueOnRegister1.OurRemoteAsyncCallBack);
IAsyncResult RemArForRegister1 = RemoteDelforRegister1.BeginInvoke(RemoteCallbackOnRegister1, null);
callback.RemoteAsyncDelegate RemoteDelforRegister2 = new callback.RemoteAsyncDelegate(() => server[1].WriteClientMetadata(client));
IAsyncResult RemArForRegister2 = RemoteDelforRegister2.BeginInvoke(RemoteCallbackOnRegister1, null);
action.WriteClientMetadata(client); //First Self Register
Log.Show(_username, "[REGISTER CLIENT] Registered on self!!");
Log.Show(_username, "[REGISTER CLIENT] Waiting for atleast one Server to return");
returnedValueOnRegister1.waiter.WaitOne();
//returnedValueOnRegister1.waiter.Reset();
if (returnedValueOnRegister1._status == false)
{
Log.Show(_username, "[REGISTER CLIENT] One of the Servers failed to register");
returnedValueOnRegister1.waiter.WaitOne();
// returnedValueOnRegister1.waiter.Reset();
if (returnedValueOnRegister1._status == false)
{
Log.Show(_username, "[REGISTER CLIENT] Both the Servers failed to register");
return false;
}
else
{
Log.Show(_username, "[REGISTER CLIENT] One Server successfully registered");
return true;
}
}
else
{
Log.Show(_username, "[REGISTER CLIENT] One Server successfully registered");
return true;
}
}
private ClientMetadata lookUpOnOtherServers(string username)
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
callback returnedValueOnLookup1 = new callback();
callback.RemoteLookupDelegate RemoteDelforLookup1 = new callback.RemoteLookupDelegate(() => server[0].ReadClientMetadata(username));
AsyncCallback RemoteCallbackOnLookup1 = new AsyncCallback(returnedValueOnLookup1.OurLookupAsyncCallBack);
IAsyncResult RemArForLookup1 = RemoteDelforLookup1.BeginInvoke(RemoteCallbackOnLookup1, null);
callback.RemoteLookupDelegate RemoteDelforLookup2 = new callback.RemoteLookupDelegate(() => server[1].ReadClientMetadata(username));
IAsyncResult RemArForLookup2 = RemoteDelforLookup2.BeginInvoke(RemoteCallbackOnLookup1, null);
bool dataEqual;
ClientMetadata myData = action.ReadClientMetadata(username);
Log.Show(_username, "[READ METADATA] Waiting for one server to return");
returnedValueOnLookup1.waiter.WaitOne();
//returnedValueOnLookup1.waiter.Reset();
//Compare the received value
ClientMetadata DataFromServer1 = returnedValueOnLookup1.data;
dataEqual = CompareValues(myData, DataFromServer1);
if (dataEqual)
{
Log.Show(_username, "[READ METADATA] First retreived value matches");
return myData;
}
else
{
Log.Show(_username, "[READ METADATA] Waiting for second server to return");
returnedValueOnLookup1.waiter.WaitOne();
//returnedValueOnLookup1.waiter.Reset();
Log.Show(_username, "[READ METADATA] Second server returned");
ClientMetadata DataFromServer2 = returnedValueOnLookup1.data;
dataEqual = CompareValues(myData, DataFromServer2);
if (dataEqual)
{
Log.Show(_username, "[READ METADATA] Second retreived value matches");
return myData;
}
else
{
dataEqual = CompareValues(DataFromServer1, DataFromServer1);
if (dataEqual)
{
Log.Show(_username, "[READ METADATA] I have an outdated value. Other two fetched values match");
action.WriteClientMetadata(returnedValueOnLookup1.data);
Log.Show(_username, "[READ METADATA] Updated my value to one of the received values");
return returnedValueOnLookup1.data;
}
else
{
Log.Show(_username, "[READ METADATA]ERROR - ERROR");
return null;
}
}
}
}
public void UpdateInfo()
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
callback returnedValueOnUpdate = new callback();
callback.RemoteUpdateDelegate RemoteDelforUpdate1 = new callback.RemoteUpdateDelegate(server[0].UpdateInfo);
AsyncCallback RemoteCallbackOnUpdate = new AsyncCallback(returnedValueOnUpdate.OurRemoteUpdateCallBack);
IAsyncResult RemArForLookup1 = RemoteDelforUpdate1.BeginInvoke(RemoteCallbackOnUpdate, null);
callback.RemoteUpdateDelegate RemoteDelforUpdate2 = new callback.RemoteUpdateDelegate(server[1].UpdateInfo);
IAsyncResult RemArForLookup2 = RemoteDelforUpdate2.BeginInvoke(RemoteCallbackOnUpdate, null);
Log.Show(_username, "WAITING HERE FOR ONE SERVER");
returnedValueOnUpdate.waiter.WaitOne();
//returnedValueOnUpdate.waiter.Reset();
action.setinfo(returnedValueOnUpdate.info);
return;
}
private void WriteSequenceNumberOnOtherServers()
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
//Write generated sequence number to ourself.
TRYREWRITE : bool status = action.WriteSequenceNumber(_sequenceNumber, _username);
if (status == false)
{
Log.Show(_username, "[SEQ NUMBER] Generated sequence number write to ourself failed: " + _sequenceNumber);
_sequenceNumber++;
goto TRYREWRITE;
}
callback returnedValue1 = new callback();
try
{
callback.RemoteAsyncDelegate RemoteDel1 = new callback.RemoteAsyncDelegate(() => server[0].WriteSequenceNumber(_sequenceNumber, _username));
AsyncCallback RemoteCallback1 = new AsyncCallback(returnedValue1.OurRemoteAsyncCallBack);
IAsyncResult RemAr1 = RemoteDel1.BeginInvoke(RemoteCallback1, null);
callback.RemoteAsyncDelegate RemoteDel2 = new callback.RemoteAsyncDelegate(() => server[1].WriteSequenceNumber(_sequenceNumber, _username));
IAsyncResult RemAr2 = RemoteDel2.BeginInvoke(RemoteCallback1, null);
}
catch (Exception e)
{
Log.Show(_username, "EXCEPTION: " + e.Message);
}
Log.Show(_username, "WAITING HERE FOR FIRST SERVER");
returnedValue1.waiter.WaitOne();
//returnedValue1.waiter.Reset();
if (returnedValue1._status == false)
{
Log.Show(_username, "[SEQ NUMBER] One of the Servers failed to set the sequence number: " + _sequenceNumber);
Log.Show(_username, "WAITING HERE FOR SECOND SERVER ASSUMING FIRST RETURNED FALSE");
returnedValue1.waiter.WaitOne();
//returnedValue1.waiter.Reset();
Log.Show(_username, "STATUS" + returnedValue1._status);
if (returnedValue1._status == false)
{
Log.Show(_username, "[SEQ NUMBER] Both servers failed to set the sequence number: " + _sequenceNumber);
_sequenceNumber++;
goto TRYREWRITE; // try until you get a sequence number.
}
else
{
Log.Show(_username, "[SEQ NUMBER] One server successfully set the sequence number: " + _sequenceNumber);
}
}
else
{
Log.Show(_username, "[SEQ NUMBER] One of the servers successfully set the sequence number: " + _sequenceNumber);
}
}
private ClientMetadata lookUpOnOtherServers(string username)
{
IConsistencyService[] server = new IConsistencyService[_servers.Count];
for (int i = 0; i < _servers.Count; i++)
{
server[i] = getOtherServers(_servers[i]);
}
callback returnedValueOnLookup1 = new callback();
callback.RemoteLookupDelegate RemoteDelforLookup1 = new callback.RemoteLookupDelegate(() => server[0].ReadClientMetadata(username));
AsyncCallback RemoteCallbackOnLookup1 = new AsyncCallback(returnedValueOnLookup1.OurLookupAsyncCallBack);
IAsyncResult RemArForLookup1 = RemoteDelforLookup1.BeginInvoke(RemoteCallbackOnLookup1, null);
callback.RemoteLookupDelegate RemoteDelforLookup2 = new callback.RemoteLookupDelegate(() => server[1].ReadClientMetadata(username));
IAsyncResult RemArForLookup2 = RemoteDelforLookup2.BeginInvoke(RemoteCallbackOnLookup1, null);
bool dataEqual;
ClientMetadata myData = action.ReadClientMetadata(username);
Log.Show(_username, "[READ METADATA] Waiting for one server to return");
returnedValueOnLookup1.waiter.WaitOne();
//returnedValueOnLookup1.waiter.Reset();
//Compare the received value
ClientMetadata DataFromServer1 = returnedValueOnLookup1.data;
dataEqual = CompareValues(myData, DataFromServer1);
if (dataEqual)
{
Log.Show(_username, "[READ METADATA] First retreived value matches");
return(myData);
}
else
{
Log.Show(_username, "[READ METADATA] Waiting for second server to return");
returnedValueOnLookup1.waiter.WaitOne();
//returnedValueOnLookup1.waiter.Reset();
Log.Show(_username, "[READ METADATA] Second server returned");
ClientMetadata DataFromServer2 = returnedValueOnLookup1.data;
dataEqual = CompareValues(myData, DataFromServer2);
if (dataEqual)
{
Log.Show(_username, "[READ METADATA] Second retreived value matches");
return(myData);
}
else
{
dataEqual = CompareValues(DataFromServer1, DataFromServer1);
if (dataEqual)
{
Log.Show(_username, "[READ METADATA] I have an outdated value. Other two fetched values match");
action.WriteClientMetadata(returnedValueOnLookup1.data);
Log.Show(_username, "[READ METADATA] Updated my value to one of the received values");
return(returnedValueOnLookup1.data);
}
else
{
Log.Show(_username, "[READ METADATA]ERROR - ERROR");
return(null);
}
}
}
}
