public TSpaceState GetTSpaceState(string Url)
{
TSpaceState xl = new TSpaceState();
TSpaceManager.RWL.AcquireWriterLock(Timeout.Infinite);
xl.LockedTuplesKeys = TSLockHandler.GetKeys();
xl.LockedTuplesValues = TSLockHandler.GetValues();
this.UpdateView(Url);
TSMan.AddToView(Url);
xl.ServerView = TSMan.GetTotalView();
xl.ProcessedRequests = TSpaceManager.ProcessedRequests;
xl.TupleSpace = TSMan.GetTuples();
TSpaceManager.RWL.ReleaseWriterLock();
return xl;
}
public TSpaceState GetTSpaceState(string Url)
{
TSpaceState smr = new TSpaceState();
TSpaceManager.RWL.AcquireWriterLock(Timeout.Infinite);
smr.MessageQueue = MessageQueue;
smr.SequenceNumber = SequenceNumber;
this.UpdateView(Url);
TSMan.AddToView(Url);
smr.ServerView = TSMan.GetTotalView();
smr.ProcessedRequests = TSpaceManager.ProcessedRequests; //its static, cant be accessed with instance
smr.TupleSpace = TSMan.GetTuples();
TSpaceManager.RWL.ReleaseWriterLock();
return(smr);
}
public void SetTSpaceState(TSpaceState smr)
{
lock (TSpaceAdvManager.ProcessedRequests)
{
TSpaceAdvManager.ProcessedRequests = smr.ProcessedRequests;
TSMan.setView(smr.ServerView);
TSMan.SetTuples(smr.TupleSpace);
TSLockHandler.SetContent(smr.LockedTuplesKeys, smr.LockedTuplesValues);
Console.WriteLine("Starting with view: " + smr.ServerView.ID);
}
}
/// <summary>
/// Gets the tuple space state
/// </summary>
/// <param name="Url">url of the server requesting the state</param> /// <returns></returns>
public TSpaceState GetTSpaceState(string Url)
{
TSpaceState smr = new TSpaceState();
//Create operationID
string id = TSMan.URL + "_" + (ViewUpdateCounter++);
int seqNum;
lock (AddingToView)
{
seqNum = GetSequenceNumber(id, null);
AddingToView.Add(Url, seqNum);
}
//Wait to be head of queue
WaitTurn(id);
TSpaceAdvManager.RWL.AcquireWriterLock(Timeout.Infinite);
//Get current list of servers
List <string> serversUrl = TSMan.ServerView.DeepUrlsCopy();
//Copy state
smr.SequenceNumber = SequenceNumber;
//its static, cant be accessed with instance
smr.ProcessedRequests = TSpaceAdvManager.ProcessedRequests;
smr.TupleSpace = TSMan.GetTuples();
//Send update view to all servers
UpdateView(Url, id, serversUrl, AddingToView[Url], true);
RemoveFromQueue(id);
smr.MessageQueue = new List <Message>();
foreach (Message msg2 in MessageQueue)
{
smr.MessageQueue.Add(Message.DeepClone(msg2));
}
TSMan.AddToView(Url);
smr.ServerView = TSMan.GetTotalView();
AddingToView.Remove(Url);
TSpaceAdvManager.RWL.ReleaseWriterLock();
return(smr);
}
public void SetTSpaceState(TSpaceState smr)
{
lock (TSpaceManager.ProcessedRequests)
{
MessageQueue = smr.MessageQueue;
TSpaceManager.ProcessedRequests = smr.ProcessedRequests;
TSMan.setView(smr.ServerView);
TSMan.SetTuples(smr.TupleSpace);
SequenceNumber = smr.SequenceNumber;
Console.WriteLine("Starting with view: " + smr.ServerView.ID);
}
}
/// <summary>
/// Initializes the tuple space state
/// </summary>
/// <param name="smr">state</param>
public void SetTSpaceState(TSpaceState smr)
{
Console.WriteLine("started setting state");
lock (TSpaceAdvManager.ProcessedRequests)
{
MessageQueue = smr.MessageQueue;
TSpaceAdvManager.ProcessedRequests = smr.ProcessedRequests;
TSMan.setView(smr.ServerView);
TSMan.SetTuples(smr.TupleSpace);
SequenceNumber = smr.SequenceNumber;
Console.WriteLine("Starting with view: " + smr.ServerView);
Console.WriteLine("Start in queue: " + MessageQueue.Count);
}
}
private TSpaceState CopyState(string Url)
{
TSpaceState xl = new TSpaceState();
xl.LockedTuplesKeys = TSLockHandler.GetKeys();
xl.LockedTuplesValues = TSLockHandler.GetValues();
TSMan.AddToView(Url);
xl.ServerView = TSMan.GetTotalView();
xl.ProcessedRequests = TSpaceAdvManager.ProcessedRequests; //its static, cant be accessed with instance
xl.TupleSpace = TSMan.GetTuples();
return(xl);
}
public TSpaceState GetTSpaceState(string Url)
{
//Acquire the lock to stop the server from processing requests
TSpaceAdvManager.RWL.AcquireWriterLock(Timeout.Infinite);
Console.WriteLine("Getting state for: " + Url);
//Copy State
TSpaceState xl = CopyState(Url);
//Propagate add server to all
UpdateAll(Url, "AddToView");
Console.WriteLine("Return state to: " + Url);
// Release lock allowing the server to process requests
TSpaceAdvManager.RWL.ReleaseWriterLock();
return(xl);
}
