public void unfreezeOperator(string op_url)
{
RemoteOperator rm_op = (RemoteOperator)Activator.GetObject(typeof(RemoteOperator), op_url);
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(rm_op.unfreeze);
IAsyncResult RemAr = RemoteDel.BeginInvoke(null, null);
}
/// <summary>
/// Makes an async remote invocation of TSpaceServer.ProcessRequest
/// </summary>
/// <param name="message">Argument of the ProcessRequest method.</param>
/// <param name="asyncCallback">Callback function of the remote call.</param>
private void Multicast(TSpaceMsg message, AsyncCallback asyncCallback)
{
//Never happens in this implementation
if (message.Code.Equals("badView") && message.MsgView.ID > TSMan.ServerView.ID)
{
AcksCounter = 0;
}
List <ITSpaceServer> servers = TSMan.ServerView.GetProxys(TSMan.URL);
RemoteAsyncDelegate remoteDel;
foreach (ITSpaceServer server in servers)
{
// Create delegate for remote method
remoteDel = new RemoteAsyncDelegate(server.ProcessRequest);
try
{
// Call remote method
remoteDel.BeginInvoke(message, asyncCallback, null);
}
catch (Exception)
{
Console.WriteLine("Failed to send");
}
}
}
public override void execute(string[] args)
{
if (args.Length < 2)
{
throw new WrongNumberOfArgsException();
}
OperatorBuilder opb;
int repIndex;
if ((opb = operatorsInfo.getOpInfo(args[0])) == null)
{
throw new WrongOperatorException();
}
if (!int.TryParse(args[1], out repIndex))
{
throw new WrongTypeOfArgException();
}
if (!(repIndex < opb.Addresses.Count && repIndex >= 0))
{
throw new IndexOutOfBoundsException();
}
ReplicaInterface obj = (ReplicaInterface)Activator.GetObject(typeof(ReplicaInterface), opb.Addresses[repIndex]);
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(obj.Unfreeze);
IAsyncResult RemAr = RemoteDel.BeginInvoke(null, obj);
}
/****************************************************************
* CALLBACK FUNCTIONS
****************************************************************/
private void PropesedSeqCallback(IAsyncResult result)
{
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)result).AsyncDelegate;
// Retrieve results.
TSpaceMsg response = del.EndInvoke(result);
if (!ValidView(response))
{
return;
}
if (response.Code.Equals("proposedSeq"))
{
//Console.WriteLine("Proposed Seq");
lock (ProposedSeq)
{
// Store porposed sequence number
ProposedSeq.Add(response.SequenceNumber);
Interlocked.Increment(ref AcksCounter);
}
}
}
/// <summary>
/// Send Commands to all the others Servers in an asyncronous way
/// </summary>
/// <param name="cmd"></param>
public static void UpdateAll(Command cmd)
{
for (int i = 0; i < Server.AllServers.Count; i++)
{
if (Server.AllServers[i].ID == Server.My_Identification.ID) //Avoid sending to himself
{
continue;
}
try
{
ServerService obj = (ServerService)Activator.GetObject(typeof(ServerService), Server.AllServers[i].UID.AbsoluteUri + "MyRemoteObjectName");
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(obj.TakeCommand);
AsyncCallback RemoteCallback = new AsyncCallback(OurRemoteAsyncCallBack);
IAsyncResult RemAr = RemoteDel.BeginInvoke(cmd, RemoteCallback, null);
Console.WriteLine("-------UpdateAll-------: {0}", Server.AllServers[i].UID.AbsoluteUri);
}
catch (Exception e)
{
//Console.WriteLine("IN STATE_MACHINE_NETWORK_START: EXCEPTION");
Console.WriteLine("-------UpdateAll------- DEAD: {0}", Server.AllServers[i].UID.AbsoluteUri);
//Console.WriteLine(e);
}
}
}
/// <summary>
/// Callback function for the read operation.
/// </summary>
/// <param name="result">Async callback result.</param>
public void ReadCallback(IAsyncResult result)
{
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)result).AsyncDelegate;
// Retrieve results.
TSpaceMsg response = del.EndInvoke(result);
if (!ValidView(response))
{
return;
}
// Stores the tuple returned
// and the RequestID of the server that answered
if (response.Code.Equals("OK"))
{
lock (LockRef)
{
if (response.Tuple != null)
{
Tuple = response.Tuple;
}
}
IncrementAcksCounter(response.RequestID);
}
}
// This is the call that the AsyncCallBack delegate will reference.
public void OurRemoteAsyncCallBack(IAsyncResult ar)
{
Monitor.Enter(this);
try
{
try
{
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)ar).AsyncDelegate;
_status = del.EndInvoke(ar);
Console.WriteLine("\nSIGNALLED STATUS" + _status);
waiter.Set();
Thread.Sleep(WAIT_TIME);
}
catch (Exception e)
{
Console.WriteLine("Exception" + e.Message);
_status = false;
Console.WriteLine("\nFAILURE SIGNALLED STATUS" + _status);
waiter.Set();
Thread.Sleep(WAIT_TIME);
}
return;
}
finally
{
Monitor.Exit(this);
}
}
public static void Main(string [] args)
{
TcpChannel chan = new TcpChannel();
ChannelServices.RegisterChannel(chan);
ObjetoRemoto obj = (ObjetoRemoto) Activator.GetObject(
typeof(TestCode.Remoting.ObjetoRemoto),
"tcp://127.0.0.1:9191/ObjetoRemoto");
if( obj.Equals(null) )
{
System.Console.WriteLine("Error: no se puede localizar el servidor");
}
else
{
SampleClient client = new SampleClient();
AsyncCallback fin_llamada_asincrona = new AsyncCallback(client.fin_contador);
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(obj.contador);
while (true){
Console.WriteLine("Empezar a contar");
Console.ReadLine();
IAsyncResult RemAr = RemoteDel.BeginInvoke(ref client.cuenta, fin_llamada_asincrona, null);
// Esperar a que la llamada termine: Si se quita while ya no espera
int y = 0;
while(!RemAr.IsCompleted){
//Console.WriteLine("Enviando petición al servidor, espere por favor: ");
//Console.WriteLine((++y));
Thread.Sleep(10);
}
}
}
}
private void ReadCallback(IAsyncResult result)
{
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)result).AsyncDelegate;
// Retrieve results.
TSpaceMsg response = del.EndInvoke(result);
if (!ValidView(response))
{
return;
}
// Stores the tuple returned
// and the OperationID of the server that answered
if (response.Code.Equals("OK"))
{
if (response.Tuple != null)
{
lock (LockRef)
{
Tuple = response.Tuple;
}
if (verbose)
{
Console.WriteLine("Response:");
Console.WriteLine(response);
}
}
Interlocked.Increment(ref AcksCounter);
}
}
/// <summary>
/// Makes an async remote invocation of TSpaceServer.ProcessRequest
/// </summary>
/// <param name="message">Argument of the ProcessRequest method.</param>
/// <param name="asyncCallback">Callback function of the remote call.</param>
private void Multicast(TSpaceMsg message, AsyncCallback asyncCallback)
{
if (CheckNeedUpdateView())
{
Console.WriteLine("Update to " + GetCurrentView());
message.MsgView = GetCurrentView();
}
//Console.WriteLine("Sending " + message.Code + " in view " + message.MsgView);
RemoteAsyncDelegate remoteDel;
foreach (ITSpaceServer server in View)
{
// Create delegate for remote method
remoteDel = new RemoteAsyncDelegate(server.ProcessRequest);
try
{
// Call remote method
remoteDel.BeginInvoke(message, asyncCallback, null);
}catch (Exception e)
{
Console.WriteLine("Failed to send");
}
}
}
private void WaitAnyCallback(IAsyncResult asyncResult)
{
AsyncResult ar = (AsyncResult)asyncResult;
RemoteAsyncDelegate remoteDel = (RemoteAsyncDelegate)ar.AsyncDelegate;
Message responseMessage = remoteDel.EndInvoke(asyncResult);
CallbackState state = (CallbackState)ar.AsyncState;
Message originalMessage = state.OriginalMessage;
string remoteUrl = state.RemoteUrl;
lock (ReplyResultQueue)
{
ReplyResultQueue.TryGetValue(originalMessage, out var replyResult);
if (replyResult == null)
{
return;
}
// save the result
replyResult.AddResult(remoteUrl, responseMessage);
// if ANY result, notify the caller (the one who initiated the multi-cast)
if (replyResult.IsDone())
{
PulseMessage(originalMessage);
}
}
}
/// <summary>
/// Callback function for the phase 1 of the take operation.
/// </summary>
/// <param name="result">Async calback result.</param>
public void Take1Callback(IAsyncResult result)
{
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)result).AsyncDelegate;
// Retrieve results.
TSpaceMsg response = del.EndInvoke(result);
//Console.WriteLine("take1" + response);
if (!ValidView(response))
{
return;
}
// Stores the list of matching tuples
// and the RequestID of the server that answered
if (response.Code.Equals("OK"))
{
// Tuples have to be added before the acks are incremented
lock (MatchingTuples) {
MatchingTuples.Add(new List <ITuple>(response.Tuples));
Interlocked.Increment(ref AcksCounter);
}
if (verbose)
{
Console.WriteLine("Response:");
Console.WriteLine(response);
}
}
}
public void StartOp(string id)
{
foreach (string repl_url in operators[id].replicas_url)
{
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(replicas_by_url[repl_url].Start);
RemoteDel.BeginInvoke(null, null);
}
}
public void OurRemoteAsyncCallBack(IAsyncResult ar)
{
lock (_sync)
{
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)ar).AsyncDelegate;
del.EndInvoke(ar);
//e.Set();
}
}
// This is the call that the AsyncCallBack delegate will reference.
public static void OurRemoteAsyncCallBack(IAsyncResult ar)
{
// Alternative 2: Use the callback to get the return value
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)ar).AsyncDelegate;
Console.WriteLine("\r\n**SUCCESS**: Result of the remote AsyncCallBack: " + del.EndInvoke(ar));
return;
}
public void crashOperator(string op_url)
{
try {
RemoteOperator rm_op = (RemoteOperator)Activator.GetObject(typeof(RemoteOperator), op_url);
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(rm_op.crashOperator);
IAsyncResult RemAr = RemoteDel.BeginInvoke(null, null);
}
catch { }
}
internal void abort()
{
// If at least one participant responded 'no'
foreach (String url in _participantURLs.Keys)
{
IParticipant participant = (IParticipant)Activator.GetObject(typeof(IParticipant), url);
//participant.doCommit(TX.TXID, MY_URL);
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(participant.doAbort);
// Call delegate to remote method
IAsyncResult RemAr = RemoteDel.BeginInvoke(TX.TXID, MY_URL, null, null);
}
}
static public void create_replicas()
{
pcs_obj = (Ipcs)Activator.GetObject(typeof(Ipcs), "tcp://localhost:10000/pcs");
funcaoCallBack = new AsyncCallback(OnExit); //aponta para a função de retorno da função assincrona
RemoteAsyncDelegate dele = new RemoteAsyncDelegate(pcs_obj.create_replica); //aponta para a função a ser chamada assincronamente
foreach (Operator op in op_list)
{
IAsyncResult result = dele.BeginInvoke(op.rep_factor, op.address, op.operator_spec, op.operator_id, funcaoCallBack, null);
}
}
public void OurRemoteAsyncCallBack(IAsyncResult ar)
{
// ASyncResult encapsule le résultat issu d'un appel asynchrone ;
// AsyncDelegate permet de récupérer l'objet delegate sur lequel l'appel asynchrone a été invoqué.
// ligne suivante, on ne fait donc que récupérer dans del le delegate sur lequel l'appel asynchrone a été effectué
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)ar).AsyncDelegate;
Console.WriteLine("\r\n**SUCCESS**: Result of the remote AsyncCallBack: " + del.EndInvoke(ar));
// Signal the thread. Set : événement signalé, les threads en attente peuvent poursuivre
e.Set();
return;
}
private void Crash(string serverId)
{
try
{
safeSleep();
Puppet p = new Puppet(serverId, null);
RemoteAsyncDelegate remDelegate = new RemoteAsyncDelegate(Servers[p].Crash);
remDelegate.BeginInvoke(null, null);
Servers.Remove(p);
} catch (SocketException)
{
System.Console.WriteLine("Could not locate server");
}
}
static void Main()
{
// allocate and register channel
TcpChannel channel = new TcpChannel();
ChannelServices.RegisterChannel(channel, true);
// get reference to remote service
MyRemoteInterface obj = (MyRemoteInterface)Activator.GetObject(
typeof(MyRemoteInterface),
"tcp://localhost:8086/MyRemoteObjectName");
try {
// first a simple synchronous call
Console.WriteLine(obj.MetodoOla());
// change this to true to use the callback (alt.2)
bool useCallback = false;
if (!useCallback)
{
// Alternative 1: asynchronous call without callback
// Create delegate to remote method
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(obj.MetodoOla);
// Call delegate to remote method
IAsyncResult RemAr = RemoteDel.BeginInvoke(null, null);
// Wait for the end of the call and then explictly call EndInvoke
RemAr.AsyncWaitHandle.WaitOne();
Console.WriteLine(RemoteDel.EndInvoke(RemAr));
}
else
{
// Alternative 2: asynchronous call with callback
// Create delegate to remote method
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(obj.MetodoOla);
// Create delegate to local callback
AsyncCallback RemoteCallback = new AsyncCallback(Client.OurRemoteAsyncCallBack);
// Call remote method
IAsyncResult RemAr = RemoteDel.BeginInvoke(RemoteCallback, null);
}
}
catch (SocketException) {
System.Console.WriteLine("Could not locate server");
}
catch (MyException e) {
Console.WriteLine("I caught an exception: " + e.campo);
Console.WriteLine("I caught an exception: " + e.mo.OlaSemExcepcao());
}
Console.ReadLine();
}
private void MulticastSingleUrl(string remoteURL, Message message, AsyncCallback asyncCallback)
{
var remotingEndpoint = GetRemoteEndpoint(remoteURL);
try {
RemoteAsyncDelegate remoteDel = remotingEndpoint.OnReceiveMessage;
CallbackState state = new CallbackState(message, remoteURL);
remoteDel.BeginInvoke(message, asyncCallback, state);
}
catch (Exception e) {
Log("Server at " + remoteURL + " is unreachable.");
throw;
}
}
public override void doOperation(Tuple input)
{
this.tupleCounter++;
this.result = Tuple.fromString(this.tupleCounter.ToString());
for (int i = 0; i < replicas_url.Length; i++)
{
if (String.Compare(op_url, replicas_url[i]) != 0)
{
Count count_op = (Count)Activator.GetObject(typeof(Count), replicas_url[i]);
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(count_op.updateCount);
IAsyncResult RemAr = RemoteDel.BeginInvoke(null, null);
}
}
}
public Message SendMessageToRemote(RemotingEndpoint remotingEndpoint, Message message)
{
try {
RemoteAsyncDelegate remoteDel = new RemoteAsyncDelegate(remotingEndpoint.OnReceiveMessage);
IAsyncResult ar = remoteDel.BeginInvoke(message, null, null);
//ar.AsyncWaitHandle.WaitOne();
// This should not be necessary, since EndInvoke already waits for completion
// unless we want to provide a timeout a do something with it
return(remoteDel.EndInvoke(ar));
}
catch (Exception e) {
Log("Server at " + remotingEndpoint.EndpointURL + " is unreachable. (For more detail: " + e.Message + ")");
throw new SocketException();
}
}
private void Status()
{
try
{
safeSleep();
foreach (IMSDADServerPuppet server in Servers.Values)
{
RemoteAsyncDelegate remDelegate = new RemoteAsyncDelegate(server.Status);
remDelegate.BeginInvoke(null, null);
}
} catch (SocketException)
{
System.Console.WriteLine("Could not locate server");
}
}
public void Run(object[] ClientInfo, string ModuleName, string MethodName, object[]objParams, CliUtils.CallBack justdo)
{
// Enable this and the e.WaitOne call at the bottom if you
// are going to make more than one asynchronous call.
fjustdo = justdo;
e = new ManualResetEvent(false);
// This is the only thing you must do in a remoting scenario
// for either synchronous or asynchronous programming
// configuration.
// The remaining steps are identical to single-
// AppDomain programming.
/*Rich marked...
ServiceClass obj = new ServiceClass();
* */
// This delegate is an asynchronous delegate. Two delegates must
// be created. The first is the system-defined AsyncCallback
// delegate, which references the method that the remote type calls
// back when the remote method is done.
AsyncCallback RemoteCallback = new AsyncCallback(this.OurRemoteAsyncCallBack);
// Create the delegate to the remote method you want to use
// asynchronously.
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(CliUtils.RemoteObject.CallMethod);
// Start the method call. Note that execution on this
// thread continues immediately without waiting for the return of
// the method call.
IAsyncResult RemAr = RemoteDel.BeginInvoke(ClientInfo, ModuleName, MethodName, objParams, RemoteCallback, null);
//已经调用方法了...
// If you want to stop execution on this thread to
// wait for the return from this specific call, retrieve the
// IAsyncResult returned from the BeginIvoke call, obtain its
// WaitHandle, and pause the thread, such as the next line:
// RemAr.AsyncWaitHandle.WaitOne();
// To wait in general, if, for example, many asynchronous calls
// have been made and you want notification of any of them, or,
// like this example, because the application domain can be
// recycled before the callback can print the result to the
// console.
//e.WaitOne();
}
// TODO: should run a separate thread to receive replies
// only the coordinator should call this
internal void prepare()
{
lock (_participantURLs)
{
Console.WriteLine("I'm the coordinator: " + MY_URL);
if (_participantURLs.Count > 0)
{
foreach (String url in _participantURLs.Keys)
{
// TODO: A thread per participant
// after all thread are sent, create one main thread responsible
// for receiving votes (yes or no) - Assync callback (ver exemplo da aula 4)
// and another one to run the timer
Console.WriteLine("URL: " + url);
IParticipant participant = (IParticipant)Activator.GetObject(typeof(IParticipant), url);
//participant.canCommit(TX.TXID, MY_URL);
// Create delegate to remote method
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(participant.canCommit);
// Call delegate to remote method
IAsyncResult RemAr = RemoteDel.BeginInvoke(TX.TXID, MY_URL, null, null);
// Wait for the end of the call and then explictly call EndInvoke
//RemAr.AsyncWaitHandle.WaitOne();
//Console.WriteLine(RemoteDel.EndInvoke(RemAr));
}
timer(10000);
MY_DECISION = waitParticipantsResponse();
evaluateMyDecision();
}
else
{
// Coordinator decision
// Default commit
MY_DECISION = TransactionDecision.COMMIT;
Console.WriteLine("AFTER MY_DECISION is commit and there are no participants");
// Send an update to the replica if there is one
Replica.updateSucessor(TX.WRITTENOBJECTS);
}
// First phase of commit, temporary write to disk
//writeAheadLog();
// if (MY_DECISION.Equals(TransactionDecision.COMMIT))
//writePermanentLog();
}
}
public void AsyncCall()
{
//e = new ManualResetEvent(false);
try
{
string serviceUrl = System.Configuration.ConfigurationManager.AppSettings["ServiceURL"];
RemoteObject.MyObject app = (RemoteObject.MyObject)Activator.GetObject(typeof(RemoteObject.MyObject), serviceUrl);
AsyncCallback RemoteCallback = new AsyncCallback(this.OurRemoteAsyncCallBack);
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(app.TimeConsumingRemoteCall);
IAsyncResult RemAr = RemoteDel.BeginInvoke(RemoteCallback, null);
Response.Write("Async Function calling... ");
RemAr.AsyncWaitHandle.WaitOne();
}
catch (Exception)
{
}
}
/***********************************************************
* CALLBACK FUNCTIONS
***********************************************************/
/// <summary>
/// Callback function for the acknowledgements.
/// </summary>
/// <param name="result">Async callback result.</param>
public void AddCallback(IAsyncResult result)
{
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)result).AsyncDelegate;
// Retrieve results.
TSpaceMsg response = del.EndInvoke(result);
if (!ValidView(response))
{
return;
}
if (response.Code.Equals("ACK"))
{
IncrementAcksCounter(response.RequestID);
}
}
/// <summary>
/// Callback function for the acknowledgements.
/// </summary>
/// <param name="result">Async call result.</param>
private void AcksCallback(IAsyncResult result)
{
RemoteAsyncDelegate del = (RemoteAsyncDelegate)((AsyncResult)result).AsyncDelegate;
// Retrieve results.
TSpaceMsg response = del.EndInvoke(result);
if (!ValidView(response))
{
return;
}
if (response.Code.Equals("ACK"))
{
Interlocked.Increment(ref AcksCounter);
}
}
// send and ignore result
// can throw exception
public IAsyncResult NewSendMessageToRemoteURL(string remoteURL, Message message)
{
var remotingEndpoint = GetRemoteEndpoint(remoteURL);
try {
RemoteAsyncDelegate remoteDel = remotingEndpoint.OnReceiveMessage;
return(remoteDel.BeginInvoke(message, delegate(IAsyncResult ar)
{
var result = (AsyncResult)ar;
var caller = (RemoteAsyncDelegate)result.AsyncDelegate;
caller.EndInvoke(ar);
}, null));
}
catch (Exception e) {
Log("Server at " + remoteURL + " is unreachable.");
throw;
}
}
public void Status()
{
foreach (string op_id in operators.Keys)
{
foreach (string repl_url in operators[op_id].replicas_url)
{
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(() => {
try{
replicas_by_url[repl_url].Status();
}catch (Exception) {
Console.WriteLine("Replica crashed!");
log("[" + op_id + " " + repl_url + "] crashed!");
}
});
RemoteDel.BeginInvoke(null, null);
}
}
}
public void Send(Message m, string uri)
{
// If channel is paused, then throw exception
// so that deferred send continues after
// the client re-connects
m.SetSourceUri (GetURI ());
// get reference to remote object
PointToPointInterface p2p_send;
if (m_dummy == null)
{
DebugLogic ("Sending to {0}", uri);
p2p_send = (PointToPointInterface) Activator.GetObject (typeof (PointToPointInterface), uri);
}
else
{
p2p_send = m_dummy;
}
// ohoy!
if (p2p_send == null)
{
DebugLogic ("Crash! Cannot find recipient: {0}", uri);
}
else
{
AsyncCallback cb = new AsyncCallback(MyCallBack);
RemoteAsyncDelegate d = new RemoteAsyncDelegate (p2p_send.Deliver);
d.BeginInvoke(m, cb, null);
e.WaitOne ();
}
}
/// <summary>
/// Method the will be called by the threads the DisseminateReservationw will create.
/// This method will make a remote call to a specific user (proxy)
/// </summary>
/// <param name="proxy"></param>
/// <param name="reservation"></param>
///
private void CallSendReservation(object context)
{
Console.WriteLine("[Calling] CallSendReservation");
lock (User.userLoger)
{
User.userLoger.IncrementNumberOfExchangedMessages("CallSendReservation");
}
ThreadInfo threadInfo = context as ThreadInfo;
UserInterface proxy = threadInfo.proxy;
Reservation reservation = threadInfo.reservationMessage.reservation;
Console.WriteLine("Thread Number: " + threadInfo.threadNumber);
ReservationMessage response = null;
RemoteAsyncDelegate remoteDelegate = new RemoteAsyncDelegate(proxy.SendReservation);
String userName = threadInfo.userName;
int originalMessageCounter = threadInfo.reservationMessage.messageCounter;
String threadName = Thread.CurrentThread.Name;
JacobsonKarels timeoutAlgoritm = User.KnownUsersTimeout[userName];
timeoutAlgoritm.ModifiedUpdateTimeout();
int timeout = timeoutAlgoritm.GetTimeout();
//dissemination
if (threadName.Length == 3)
{
timeout = timeout / 2;
}
IAsyncResult result = remoteDelegate.BeginInvoke(threadInfo.reservationMessage, timeout, null, null);
//colocar timeout dinamico!
bool responseInTime = result.AsyncWaitHandle.WaitOne(timeout, true);
Console.WriteLine("Work time is over! Response in time? " + responseInTime);
//didn't get a response till timeout
if (responseInTime == false) {
Console.WriteLine("Timeout! Did not receive any answer!");
result.AsyncWaitHandle.Close();
response = new ReservationMessage();
//add an empty dicionary indicating that the user did not answered
response.AddSlotResponse(userName, new Dictionary<int, String>());
result.AsyncWaitHandle.Close();
}
else {
IncrementUserTrust(threadInfo.userName);
response = remoteDelegate.EndInvoke(result);
Console.WriteLine("Received: " + response);
result.AsyncWaitHandle.Close();
}
String currentThreadName = Thread.CurrentThread.Name;
char[] separator = { ' ' };
String[] splitedThreadName = currentThreadName.Split(separator);
String currentThreadNumber = splitedThreadName[0];
int currentTNumber = int.Parse(currentThreadNumber);
if (threadResponses.ContainsKey(currentTNumber)) {
threadResponses.Remove(currentTNumber);
}
//adds the response the response dicionary
//if is the retry
if (originalMessageCounter < 0) {
if (threadResponses2.ContainsKey(threadInfo.userName))
threadResponses2.Remove(threadInfo.userName);
threadResponses2.Add(threadInfo.userName, response);
}
else
threadResponses.Add(threadInfo.threadNumber, response);
}
private void CallCommitReservation(object context)
{
ThreadInfo threadInfo = context as ThreadInfo;
UserInterface proxy = threadInfo.proxy;
Console.WriteLine("Thread Number: " + threadInfo.threadNumber);
lock (User.userLoger)
{
User.userLoger.IncrementNumberOfExchangedMessages("CallCommitReservation");
}
ReservationMessage response = null;
RemoteAsyncDelegate remoteDelegate = new RemoteAsyncDelegate(proxy.CommitReservation);
String userName = threadInfo.userName;
JacobsonKarels timeoutAlgoritm = User.KnownUsersTimeout[userName];
timeoutAlgoritm.ModifiedUpdateTimeout();
int timeout = timeoutAlgoritm.GetTimeout();
IAsyncResult result = remoteDelegate.BeginInvoke(threadInfo.reservationMessage, timeout, null, null);
bool responseInTime = result.AsyncWaitHandle.WaitOne(timeout, true);
Console.WriteLine("Work time is over! Response in time? " + responseInTime);
//didn't get a response till timeout
if (responseInTime == false)
{
Console.WriteLine("Timeout! Did not receive any answer!");
result.AsyncWaitHandle.Close();
return;
}
IncrementUserTrust(threadInfo.userName);
response = remoteDelegate.EndInvoke(result);
Console.WriteLine("Commit!");
result.AsyncWaitHandle.Close();
return;
}
private void CallTwoPhaseCommit(object context)
{
ThreadInfo threadInfo = context as ThreadInfo;
UserInterface proxy = threadInfo.proxy;
Console.WriteLine("Thread Number: " + threadInfo.threadNumber);
lock (User.userLoger)
{
User.userLoger.IncrementNumberOfExchangedMessages("CallTwoPhaseCommit");
}
ReservationMessage response = new ReservationMessage();
RemoteAsyncDelegate remoteDelegate = new RemoteAsyncDelegate(proxy.TwoPhaseCommit);
String userName = threadInfo.userName;
JacobsonKarels timeoutAlgoritm = User.KnownUsersTimeout[userName];
timeoutAlgoritm.ModifiedUpdateTimeout();
int timeout = timeoutAlgoritm.GetTimeout();
IAsyncResult result = remoteDelegate.BeginInvoke(threadInfo.reservationMessage, timeout, null, null);
bool responseInTime = result.AsyncWaitHandle.WaitOne(timeout, true);
Console.WriteLine("Work time is over! Response in time? " + responseInTime);
//didn't get a response till timeout
if (responseInTime == false)
{
Console.WriteLine("Timeout! Did not receive any answer!");
if(!response.response2PC.ContainsKey(userName))
response.response2PC.Add(userName,"Timeout");;
result.AsyncWaitHandle.Close();
return;
}
if (!response.response2PC.ContainsKey(userName))
response.response2PC.Add(userName, "YES");
IncrementUserTrust(threadInfo.userName);
response = remoteDelegate.EndInvoke(result);
Console.WriteLine("Can Commit!");
result.AsyncWaitHandle.Close();
String currentThreadName = Thread.CurrentThread.Name;
char[] separator = { ' ' };
String[] splitedThreadName = currentThreadName.Split(separator);
String currentThreadNumber = splitedThreadName[0];
int currentTNumber = int.Parse(currentThreadNumber);
if (threadResponses.ContainsKey(currentTNumber))
{
threadResponses.Remove(currentTNumber);
}
int originalMessageCounter = threadInfo.reservationMessage.messageCounter;
//if is the retry
if (originalMessageCounter < 0)
{
if (threadResponses2.ContainsKey(threadInfo.userName))
threadResponses2.Remove(threadInfo.userName);
threadResponses2.Add(threadInfo.userName, response);
}
else
threadResponses.Add(threadInfo.threadNumber, response);
}
public void Run()
{
// Enable this and the e.WaitOne call at the bottom if you
// are going to make more than one asynchronous call.
e = new ManualResetEvent(false); // false : evt non signalé
Console.WriteLine("Remote synchronous and asynchronous delegates.");
Console.WriteLine(new String('-',80));
Console.WriteLine();
// This is the only thing you must do in a remoting scenario
// for either synchronous or asynchronous programming
// configuration.
RemotingConfiguration.Configure("SyncAsync.exe.config", true);
// The remaining steps are identical to single-
// AppDomain programming. Sauf si on veut utiliser la ligne suivante, plus prudente qu'un new
// ServiceClass obj = (ServiceClass)Activator.GetObject(typeof(ServiceClass), "tcp://localhost:8085/ServiceClass.rem");
ServiceClass obj = new ServiceClass(); // attention, on récupère un proxy ...
// This delegate is a remote synchronous delegate.
RemoteSyncDelegate Remotesyncdel = new RemoteSyncDelegate(obj.VoidCall);
// When invoked, program execution waits until the method returns.
// This delegate can be passed to another application domain
// to be used as a callback to the obj.VoidCall method.
Console.WriteLine(Remotesyncdel());
Console.WriteLine("Pause 1");
Console.Read();
// This delegate is an asynchronous delegate. Two delegates must
// be created. The first is the system-defined AsyncCallback
// delegate, which references the method that the remote type calls
// back when the remote method is done.
AsyncCallback RemoteCallback = new AsyncCallback(this.OurRemoteAsyncCallBack);
// Create the delegate to the remote method you want to use
// asynchronously.
RemoteAsyncDelegate RemoteDel = new RemoteAsyncDelegate(obj.TimeConsumingRemoteCall);
// Start the method call. Note that execution on this
// thread continues immediately without waiting for the return of
// the method call.
IAsyncResult RemAr = RemoteDel.BeginInvoke(RemoteCallback, null); // BeginInvoke est générée : prend d'abord les paramètres s'il y en a (ici : non, TimeConsumingRemoteCall ne prend pas de param), puis le callback, puis un objet qcq, qui peut être utile par exemple à passer des informations d'état)
Console.WriteLine("Pause 2");
Console.Read();
// If you want to stop execution on this thread to
// wait for the return from this specific call, retrieve the
// IAsyncResult returned from the BeginIvoke call, obtain its
// WaitHandle, and pause the thread, such as the next line:
// RemAr.AsyncWaitHandle.WaitOne();
// To wait in general, if, for example, many asynchronous calls
// have been made and you want notification of any of them, or,
// like this example, because the application domain can be
// recycled before the callback can print the result to the
// console.
//e.WaitOne();
// This simulates some other work going on in this thread while the
// async call has not returned.
int count = 0;
while(!RemAr.IsCompleted){
Console.Write("\rNot completed: " + (++count).ToString());
// Make sure the callback thread can invoke callback.
Thread.Sleep(1);
}
Console.Read();
}
