public RootGuardianSupervisor(RootActorPath root, IActorRefProvider provider, TaskCompletionSource<Status> terminationPromise, ILoggingAdapter log)
{
_log = log;
_terminationPromise = terminationPromise;
_provider = provider;
_path = root / "_Root-guardian-supervisor"; //In akka this is root / "bubble-walker"
}
public VirtualPathContainer(IActorRefProvider provider, ActorPath path, IInternalActorRef parent, ILoggingAdapter log)
{
_parent = parent;
_log = log;
_provider = provider;
_path = path;
}
private static Task <object> Ask(ICanTell self, object message, IActorRefProvider provider,
TimeSpan?timeout)
{
var result = new TaskCompletionSource <object>();
CancellationTokenSource timeoutCancellation = null;
timeout = timeout ?? provider.Settings.AskTimeout;
if (timeout != Timeout.InfiniteTimeSpan && timeout.Value > default(TimeSpan))
{
timeoutCancellation = new CancellationTokenSource();
timeoutCancellation.Token.Register(() => result.TrySetCanceled());
timeoutCancellation.CancelAfter(timeout.Value);
}
//create a new tempcontainer path
ActorPath path = provider.TempPath();
//callback to unregister from tempcontainer
Action unregister =
() =>
{
// cancelling timeout (if any) in order to prevent memory leaks
// (a reference to 'result' variable in CancellationToken's callback)
timeoutCancellation?.Cancel();
provider.UnregisterTempActor(path);
};
var future = new FutureActorRef(result, unregister, path);
//The future actor needs to be registered in the temp container
provider.RegisterTempActor(future, path);
self.Tell(message, future);
return(result.Task);
}
/// <summary>
/// TBD
/// </summary>
/// <param name="root">TBD</param>
/// <param name="provider">TBD</param>
/// <param name="terminationPromise">TBD</param>
/// <param name="log">TBD</param>
public RootGuardianSupervisor(RootActorPath root, IActorRefProvider provider, TaskCompletionSource <Status> terminationPromise, ILoggingAdapter log)
{
_log = log;
_terminationPromise = terminationPromise;
_provider = provider;
_path = root / "_Root-guardian-supervisor"; //In akka this is root / "bubble-walker"
}
private static Task <object> Ask(ICanTell self, object message, IActorRefProvider provider,
TimeSpan?timeout)
{
var result = new TaskCompletionSource <object>();
timeout = timeout ?? provider.Settings.AskTimeout;
if (timeout != Timeout.InfiniteTimeSpan && timeout.Value > default(TimeSpan))
{
var cancellationSource = new CancellationTokenSource();
cancellationSource.Token.Register(() => result.TrySetCanceled());
cancellationSource.CancelAfter(timeout.Value);
}
//create a new tempcontainer path
ActorPath path = provider.TempPath();
//callback to unregister from tempcontainer
Action unregister = () => provider.UnregisterTempActor(path);
var future = new FutureActorRef(result, unregister, path);
//The future actor needs to be registered in the temp container
provider.RegisterTempActor(future, path);
self.Tell(message, future);
return(result.Task);
}
public FunctionRef(ActorPath path, IActorRefProvider provider, EventStream eventStream, Action <IActorRef, object> tell)
{
_eventStream = eventStream;
_tell = tell;
Path = path;
Provider = provider;
}
public static AskRefs Create(IActorRefProvider provider, TimeSpan timeout)
{
var tcs = new TaskCompletionSource <object>();
// logic copied from Ask (Akka.Actor -> Futures.cs)
if (timeout != System.Threading.Timeout.InfiniteTimeSpan && timeout > default(TimeSpan))
{
var cancellationSource = new CancellationTokenSource();
cancellationSource.Token.Register(() => tcs.TrySetCanceled());
cancellationSource.CancelAfter(timeout);
}
//create a new tempcontainer path
ActorPath path = provider.TempPath();
//callback to unregister from tempcontainer
Action unregister = () => provider.UnregisterTempActor(path);
var future = new FutureActorRef(tcs, unregister, path);
//The future actor needs to be registered in the temp container
provider.RegisterTempActor(future, path);
return(new AskRefs(future, tcs));
}
public static PromiseActorRef Apply(IActorRefProvider provider, TimeSpan timeout, object targetName,
string messageClassName, IActorRef sender = null)
{
sender = sender ?? ActorRefs.NoSender;
var result = new TaskCompletionSource <object>();
var a = new PromiseActorRef(provider, result, messageClassName);
var scheduler = provider.Guardian.Underlying.System.Scheduler.Advanced;
var c = new Cancelable(scheduler, timeout);
scheduler.ScheduleOnce(timeout, () => result.TrySetResult(new Status.Failure(new AskTimeoutException(
string.Format("Ask timed out on [{0}] after [{1} ms]. Sender[{2}] sent message of type {3}.", targetName, timeout.TotalMilliseconds, sender, messageClassName)))),
c);
result.Task.ContinueWith(r =>
{
try
{
a.Stop();
}
finally
{
c.Cancel(false);
}
}, TaskContinuationOptions.AttachedToParent & TaskContinuationOptions.ExecuteSynchronously);
return(a);
}
private static Task <object> Ask(ICanTell self, object message, IActorRefProvider provider,
TimeSpan?timeout, CancellationToken cancellationToken)
{
TaskCompletionSource <object> result;
if (isRunContinuationsAsynchronouslyAvailable)
{
result = new TaskCompletionSource <object>((TaskCreationOptions)RunContinuationsAsynchronously);
}
else
{
result = new TaskCompletionSource <object>();
}
CancellationTokenSource timeoutCancellation = null;
timeout = timeout ?? provider.Settings.AskTimeout;
List <CancellationTokenRegistration> ctrList = new List <CancellationTokenRegistration>(2);
if (timeout != Timeout.InfiniteTimeSpan && timeout.Value > default(TimeSpan))
{
timeoutCancellation = new CancellationTokenSource();
ctrList.Add(timeoutCancellation.Token.Register(() => result.TrySetCanceled()));
timeoutCancellation.CancelAfter(timeout.Value);
}
if (cancellationToken.CanBeCanceled)
{
ctrList.Add(cancellationToken.Register(() => result.TrySetCanceled()));
}
//create a new tempcontainer path
ActorPath path = provider.TempPath();
//callback to unregister from tempcontainer
Action unregister =
() =>
{
// cancelling timeout (if any) in order to prevent memory leaks
// (a reference to 'result' variable in CancellationToken's callback)
if (timeoutCancellation != null)
{
timeoutCancellation.Cancel();
timeoutCancellation.Dispose();
}
for (var i = 0; i < ctrList.Count; i++)
{
ctrList[i].Dispose();
}
provider.UnregisterTempActor(path);
};
var future = new FutureActorRef(result, unregister, path, isRunContinuationsAsynchronouslyAvailable);
//The future actor needs to be registered in the temp container
provider.RegisterTempActor(future, path);
self.Tell(message, future);
return(result.Task);
}
/// <summary>
/// Configures the provider.
/// </summary>
private void ConfigureProvider()
{
Type providerType = Type.GetType(_settings.ProviderClass);
global::System.Diagnostics.Debug.Assert(providerType != null, "providerType != null");
var provider = (IActorRefProvider)Activator.CreateInstance(providerType, _name, _settings, _eventStream);
_provider = provider;
}
/// <summary>
/// TBD
/// </summary>
/// <typeparam name="T">TBD</typeparam>
/// <param name="self">TBD</param>
/// <param name="messageFactory">Factory method that creates a message that can encapsulate the 'Sender' IActorRef</param>
/// <param name="timeout">TBD</param>
/// <param name="cancellationToken">TBD</param>
/// <exception cref="ArgumentException">
/// This exception is thrown if the system can't resolve the target provider.
/// </exception>
/// <returns>TBD</returns>
public static Task <T> Ask <T>(this ICanTell self, Func <IActorRef, object> messageFactory, TimeSpan?timeout, CancellationToken cancellationToken)
{
IActorRefProvider provider = ResolveProvider(self);
if (provider == null)
{
throw new ArgumentException("Unable to resolve the target Provider", nameof(self));
}
var result = TaskEx.NonBlockingTaskCompletionSource <T>();
CancellationTokenSource timeoutCancellation = null;
timeout = timeout ?? provider.Settings.AskTimeout;
CancellationTokenRegistration?ctr1 = null;
CancellationTokenRegistration?ctr2 = null;
if (timeout != Timeout.InfiniteTimeSpan && timeout.Value > default(TimeSpan))
{
timeoutCancellation = new CancellationTokenSource();
ctr1 = timeoutCancellation.Token.Register(() =>
{
result.TrySetException(new AskTimeoutException($"Timeout after {timeout} seconds"));
});
timeoutCancellation.CancelAfter(timeout.Value);
}
if (cancellationToken.CanBeCanceled)
{
ctr2 = cancellationToken.Register(() => result.TrySetCanceled());
}
var future = provider.CreateFutureRef(result);
var path = future.Path;
//The future actor needs to be unregistered in the temp container
_ = result.Task.ContinueWith(t =>
{
provider.UnregisterTempActor(path);
ctr1?.Dispose();
ctr2?.Dispose();
timeoutCancellation?.Dispose();
}, TaskContinuationOptions.ExecuteSynchronously);
//The future actor needs to be registered in the temp container
provider.RegisterTempActor(future, path);
var message = messageFactory(future);
self.Tell(message, future);
return(result.Task);
}
public static async Task <T> AskEx <T>(this ICanTell self, Func <IActorRef, object> messageFactory, TimeSpan?timeout, CancellationToken cancellationToken)
{
IActorRefProvider provider = ResolveProvider(self);
if (provider == null)
{
throw new ArgumentException("Unable to resolve the target Provider", nameof(self));
}
return((T) await AskEx(self, messageFactory, provider, timeout, cancellationToken));
}
/// <summary>
/// TBD
/// </summary>
/// <typeparam name="T">TBD</typeparam>
/// <param name="self">TBD</param>
/// <param name="message">TBD</param>
/// <param name="timeout">TBD</param>
/// <param name="cancellationToken">TBD</param>
/// <exception cref="ArgumentException">
/// This exception is thrown if the system can't resolve the target provider.
/// </exception>
/// <returns>TBD</returns>
public static Task <T> Ask <T>(this ICanTell self, object message, TimeSpan?timeout, CancellationToken cancellationToken)
{
IActorRefProvider provider = ResolveProvider(self);
if (provider == null)
{
throw new ArgumentException("Unable to resolve the target Provider", nameof(self));
}
return(Ask(self, message, provider, timeout, cancellationToken).CastTask <object, T>());
}
public static Task <T> Ask <T>(this ICanTell self, object message, TimeSpan?timeout = null)
{
IActorRefProvider provider = ResolveProvider(self);
if (provider == null)
{
throw new NotSupportedException("Unable to resolve the target Provider");
}
ResolveReplyTo();
return(Ask(self, message, provider, timeout).CastTask <object, T>());
}
/// <summary>
/// TBD
/// </summary>
/// <typeparam name="T">TBD</typeparam>
/// <param name="self">TBD</param>
/// <param name="message">TBD</param>
/// <param name="timeout">TBD</param>
/// <param name="cancellationToken">TBD</param>
/// <exception cref="ArgumentException">
/// This exception is thrown if the system can't resolve the target provider.
/// </exception>
/// <returns>TBD</returns>
public static async Task <T> Ask <T>(this ICanTell self, object message, TimeSpan?timeout, CancellationToken cancellationToken)
{
await SynchronizationContextManager.RemoveContext;
IActorRefProvider provider = ResolveProvider(self);
if (provider == null)
{
throw new ArgumentException("Unable to resolve the target Provider", nameof(self));
}
return((T) await Ask(self, message, provider, timeout, cancellationToken));
}
private void ConfigureProvider()
{
try
{
Type providerType = Type.GetType(_settings.ProviderClass);
global::System.Diagnostics.Debug.Assert(providerType != null, "providerType != null");
var provider =
(IActorRefProvider)Activator.CreateInstance(providerType, _name, _settings, _eventStream);
_provider = provider;
}
catch (Exception)
{
try { StopScheduler(); }
catch
{
// ignored
}
throw;
}
}
public RemoteDeadLetterActorRef(IActorRefProvider provider, ActorPath actorPath, EventStream eventStream)
: base(provider, actorPath, eventStream)
{
}
/// <summary>
/// INTERNAL API
/// </summary>
/// <param name="result">TBD</param>
/// <param name="path">TBD</param>
/// <param name="provider">TBD</param>
public FutureActorRef(TaskCompletionSource <T> result, ActorPath path, IActorRefProvider provider)
{
_result = result;
_path = path;
_provider = provider;
}
public DeadLetterActorRef(IActorRefProvider provider, ActorPath path, EventStream eventStream)
: base(provider, path, eventStream)
{
_eventStream = eventStream;
}
private static async Task <object> Ask(ICanTell self, Func <IActorRef, object> messageFactory, IActorRefProvider provider,
TimeSpan?timeout, CancellationToken cancellationToken)
{
TaskCompletionSource <object> result = TaskEx.NonBlockingTaskCompletionSource <object>();
CancellationTokenSource timeoutCancellation = null;
timeout = timeout ?? provider.Settings.AskTimeout;
var ctrList = new List <CancellationTokenRegistration>(2);
if (timeout != Timeout.InfiniteTimeSpan && timeout.Value > default(TimeSpan))
{
timeoutCancellation = new CancellationTokenSource();
ctrList.Add(timeoutCancellation.Token.Register(() =>
{
result.TrySetException(new AskTimeoutException($"Timeout after {timeout} seconds"));
}));
timeoutCancellation.CancelAfter(timeout.Value);
}
if (cancellationToken.CanBeCanceled)
{
ctrList.Add(cancellationToken.Register(() => result.TrySetCanceled()));
}
//create a new tempcontainer path
ActorPath path = provider.TempPath();
var future = new FutureActorRef(result, () => { }, path, TaskEx.IsRunContinuationsAsynchronouslyAvailable);
//The future actor needs to be registered in the temp container
provider.RegisterTempActor(future, path);
var message = messageFactory(future);
self.Tell(message, future);
try
{
return(await result.Task);
}
finally
{
//callback to unregister from tempcontainer
provider.UnregisterTempActor(path);
for (var i = 0; i < ctrList.Count; i++)
{
ctrList[i].Dispose();
}
if (timeoutCancellation != null)
{
timeoutCancellation.Dispose();
}
}
}
public IgnoreActorRef(IActorRefProvider provider)
{
Provider = provider;
}
/// <summary>
/// TBD
/// </summary>
/// <param name="provider">TBD</param>
/// <param name="path">TBD</param>
/// <param name="eventStream">TBD</param>
public EmptyLocalActorRef(IActorRefProvider provider, ActorPath path, EventStream eventStream)
{
_provider = provider;
_path = path;
_eventStream = eventStream;
}
internal TracedActorRef(IActorRefProvider provider, IActorRef @delegate, IAkkaTracer tracer)
{
_provider = provider;
_delegate = @delegate;
_tracer = tracer;
}
public EmptyLocalActorRef(IActorRefProvider provider, ActorPath path, EventStream eventStream)
{
_provider = provider;
_path = path;
_eventStream = eventStream;
}
/// <summary>
/// TBD
/// </summary>
/// <param name="provider">TBD</param>
/// <param name="path">TBD</param>
/// <param name="eventStream">TBD</param>
public DeadLetterActorRef(IActorRefProvider provider, ActorPath path, EventStream eventStream)
: base(provider, path, eventStream)
{
_eventStream = eventStream;
}
public PromiseActorRef(IActorRefProvider provider, TaskCompletionSource <object> result, string mcn)
{
_provider = provider;
Result = result;
_mcn = mcn;
}
/// <summary>
/// Can't access constructor directly - use <see cref="Apply"/> instead.
/// </summary>
private PromiseActorRef(IActorRefProvider provider, TaskCompletionSource <object> promise, string mcn)
{
_provider = provider;
_promise = promise;
_mcn = mcn;
}
public TraceActorRefProvider(string systemName, Settings settings, EventStream eventStream)
{
_delegate = new LocalActorRefProvider(systemName, settings, eventStream);
}
public TraceActorRefProvider(IActorRefProvider @delegate)
{
_delegate = @delegate;
}
public OmnetActorRefProvider(string systemName, Settings settings, EventStream eventStream)
{
_localActorRefProvider = new LocalActorRefProvider(systemName, settings, eventStream);
}
