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102 lines
2.5 KiB
C++
102 lines
2.5 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "ISessionService.h"
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/**
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* Implements an application session service.
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*/
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class FSessionService
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: public FOutputDevice
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, public ISessionService
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{
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public:
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/**
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* Creates and initializes a new instance.
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*
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* @param InMessageBus The message bus to use.
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*/
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FSessionService( const IMessageBusRef& InMessageBus );
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/** Destructor. */
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~FSessionService();
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public:
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// FOutputDevice interface
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virtual void Serialize( const TCHAR* Data, ELogVerbosity::Type Verbosity, const class FName& Category ) override
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{
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SendLog(Data, Verbosity, Category);
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}
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public:
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// ISessionService interface
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virtual bool IsRunning() override
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{
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return MessageEndpoint.IsValid();
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}
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virtual bool Start() override;
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virtual void Stop() override;
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protected:
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/**
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* Sends a log message to subscribed recipients.
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*
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* @param Data The log message data.
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* @param Verbosity The verbosity type.
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* @param Category The log category.
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*/
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void SendLog( const TCHAR* Data, ELogVerbosity::Type Verbosity = ELogVerbosity::Log, const class FName& Category = "Log" );
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/**
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* Sends a notification to the specified recipient.
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*
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* @param NotificationText The notification text.
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* @param Recipient The recipient's message address.
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*/
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void SendNotification( const TCHAR* NotificationText, const FMessageAddress& Recipient );
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/**
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* Publishes a ping response.
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*
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* @param Context The context of the received Ping message.
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*/
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void SendPong( const IMessageContextRef& Context );
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private:
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/** Handles message bus shutdowns. */
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void HandleMessageEndpointShutdown();
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/** Handles FSessionServiceLogSubscribe messages. */
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void HandleSessionLogSubscribeMessage( const FSessionServiceLogSubscribe& Message, const IMessageContextRef& Context );
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/** Handles FSessionServiceLogUnsubscribe messages. */
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void HandleSessionLogUnsubscribeMessage( const FSessionServiceLogUnsubscribe& Message, const IMessageContextRef& Context );
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/** Handles FSessionServicePing messages. */
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void HandleSessionPingMessage( const FSessionServicePing& Message, const IMessageContextRef& Context );
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private:
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/** Holds the list of log subscribers. */
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TArray<FMessageAddress> LogSubscribers;
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/** Holds a critical section for the log subscribers array. */
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FCriticalSection LogSubscribersLock;
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/** Holds a weak pointer to the message bus. */
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IMessageBusWeakPtr MessageBusPtr;
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/** Holds the message endpoint. */
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FMessageEndpointPtr MessageEndpoint;
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};
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