Files
UnrealEngineUWP/Engine/Source/Runtime/Messaging/Private/Bus/MessageBus.h
Ben Marsh 20bf0eb6a1 Updating copyright notices to 2017 (copying from //Tasks/UE4/Dev-Copyright-2017).
#rb none
#lockdown Nick.Penwarden

[CL 3226823 by Ben Marsh in Main branch]
2016-12-08 08:52:44 -05:00

68 lines
2.8 KiB
C++

// Copyright 1998-2017 Epic Games, Inc. All Rights Reserved.
#pragma once
#include "CoreMinimal.h"
#include "IMessageContext.h"
#include "IMessageSubscription.h"
#include "IMessageAttachment.h"
#include "IMessageInterceptor.h"
#include "IAuthorizeMessageRecipients.h"
#include "IMessageTracer.h"
#include "IMessageBus.h"
class FMessageRouter;
class IMessageReceiver;
class IMessageSender;
/**
* Implements a message bus.
*/
class FMessageBus
: public TSharedFromThis<FMessageBus, ESPMode::ThreadSafe>
, public IMessageBus
{
public:
/**
* Creates and initializes a new instance.
*
* @param InRecipientAuthorizer An optional recipient authorizer.
*/
FMessageBus(const TSharedPtr<IAuthorizeMessageRecipients>& InRecipientAuthorizer);
/** Virtual destructor. */
virtual ~FMessageBus();
public:
//~ IMessageBus interface
virtual void Forward(const TSharedRef<IMessageContext, ESPMode::ThreadSafe>& Context, const TArray<FMessageAddress>& Recipients, const FTimespan& Delay, const TSharedRef<IMessageSender, ESPMode::ThreadSafe>& Forwarder) override;
virtual TSharedRef<IMessageTracer, ESPMode::ThreadSafe> GetTracer() override;
virtual void Intercept(const TSharedRef<IMessageInterceptor, ESPMode::ThreadSafe>& Interceptor, const FName& MessageType) override;
virtual FOnMessageBusShutdown& OnShutdown() override;
virtual void Publish(void* Message, UScriptStruct* TypeInfo, EMessageScope Scope, const FTimespan& Delay, const FDateTime& Expiration, const TSharedRef<IMessageSender, ESPMode::ThreadSafe>& Publisher) override;
virtual void Register(const FMessageAddress& Address, const TSharedRef<IMessageReceiver, ESPMode::ThreadSafe>& Recipient) override;
virtual void Send(void* Message, UScriptStruct* TypeInfo, const TSharedPtr<IMessageAttachment, ESPMode::ThreadSafe>& Attachment, const TArray<FMessageAddress>& Recipients, const FTimespan& Delay, const FDateTime& Expiration, const TSharedRef<IMessageSender, ESPMode::ThreadSafe>& Sender) override;
virtual void Shutdown() override;
virtual TSharedPtr<IMessageSubscription, ESPMode::ThreadSafe> Subscribe(const TSharedRef<IMessageReceiver, ESPMode::ThreadSafe>& Subscriber, const FName& MessageType, const FMessageScopeRange& ScopeRange) override;
virtual void Unintercept(const TSharedRef<IMessageInterceptor, ESPMode::ThreadSafe>& Interceptor, const FName& MessageType) override;
virtual void Unregister(const FMessageAddress& Address) override;
virtual void Unsubscribe(const TSharedRef<IMessageReceiver, ESPMode::ThreadSafe>& Subscriber, const FName& MessageType) override;
private:
/** Holds the message router. */
FMessageRouter* Router;
/** Holds the message router thread. */
FRunnableThread* RouterThread;
/** Holds the recipient authorizer. */
TSharedPtr<IAuthorizeMessageRecipients> RecipientAuthorizer;
/** Holds bus shutdown delegate. */
FOnMessageBusShutdown ShutdownDelegate;
};