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bfe09fb7c7
We also fixed ReplayTransaction when loading an asset; replay transactions only need to occur if the transaction was applied after the package event. #jira UE-177465 #rb dominik.peacock #preflight 646f871250786bb5ba85b1ef [CL 25623286 by jason walter in ue5-main branch]
465 lines
18 KiB
C++
465 lines
18 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "ConcertClientSession.h"
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#include "ConcertClientSettings.h"
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#include "ConcertLogGlobal.h"
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#include "ConcertMessages.h"
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#include "IConcertClient.h"
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#include "IConcertEndpoint.h"
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#include "Scratchpad/ConcertScratchpad.h"
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#include "Containers/Ticker.h"
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#include "Misc/Paths.h"
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#include "Stats/Stats.h"
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#include "UObject/StructOnScope.h"
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const FName ConcertClientMessageIdName("ConcertMessageId");
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FConcertClientSession::FConcertClientSession(const FConcertSessionInfo& InSessionInfo, const FConcertClientInfo& InClientInfo, const FConcertClientSettings& InSettings, TSharedPtr<IConcertLocalEndpoint> InClientSessionEndpoint, const FString& InSessionDirectory)
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: FConcertSessionCommonImpl(InSessionInfo)
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, ClientInfo(InClientInfo)
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, ConnectionStatus(EConcertConnectionStatus::Disconnected)
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, ClientSessionEndpoint(MoveTemp(InClientSessionEndpoint))
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, LastConnectionTick(0)
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, SessionTickFrequency(0, 0, InSettings.SessionTickFrequencySeconds)
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, SessionDirectory(InSessionDirectory)
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{
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SendReceiveState = GetDefaultSendReceiveState();
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}
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FConcertClientSession::~FConcertClientSession()
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{
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// if the SessionTick is valid, Shutdown wasn't called
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check(!SessionTick.IsValid());
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}
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void FConcertClientSession::Startup()
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{
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// if the session tick isn't valid we haven't started
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if (!SessionTick.IsValid())
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{
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CommonStartup();
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// Register to connection changed event
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ClientSessionEndpoint->OnRemoteEndpointConnectionChanged().AddRaw(this, &FConcertClientSession::HandleRemoteConnectionChanged);
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// Setup the session handlers
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ClientSessionEndpoint->RegisterEventHandler<FConcertSession_JoinSessionResultEvent>(this, &FConcertClientSession::HandleJoinSessionResultEvent);
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ClientSessionEndpoint->RegisterEventHandler<FConcertSession_ClientListUpdatedEvent>(this, &FConcertClientSession::HandleClientListUpdatedEvent);
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ClientSessionEndpoint->RegisterEventHandler<FConcertSession_SessionRenamedEvent>(this, &FConcertClientSession::HandleSessionRenamedEvent);
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ClientSessionEndpoint->RegisterEventHandler<FConcertSession_UpdateClientInfoEvent>(this, &FConcertClientSession::HandleClientInfoUpdatedEvent);
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// Setup Handlers for custom session messages
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ClientSessionEndpoint->RegisterEventHandler<FConcertSession_CustomEvent>(this, &FConcertClientSession::CommonHandleCustomEvent);
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ClientSessionEndpoint->RegisterRequestHandler<FConcertSession_CustomRequest, FConcertSession_CustomResponse>(this, &FConcertClientSession::CommonHandleCustomRequest);
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// Setup the session tick
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SessionTick = FTSTicker::GetCoreTicker().AddTicker(TEXT("ClientSession"), 0, [this](float DeltaSeconds)
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{
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QUICK_SCOPE_CYCLE_COUNTER(STAT_FConcertClientSession_Tick);
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const FDateTime UtcNow = FDateTime::UtcNow();
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TickConnection(DeltaSeconds, UtcNow);
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return true;
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});
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UE_LOG(LogConcert, Display, TEXT("Initialized Concert session '%s' (Id: %s, Owner: %s)."), *SessionInfo.SessionName, *SessionInfo.SessionId.ToString(), *SessionInfo.OwnerUserName);
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}
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}
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void FConcertClientSession::Shutdown()
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{
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if (SessionTick.IsValid())
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{
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// Unregister connection changed
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ClientSessionEndpoint->OnRemoteEndpointConnectionChanged().RemoveAll(this);
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// Unregister the session handlers
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ClientSessionEndpoint->UnregisterEventHandler<FConcertSession_JoinSessionResultEvent>();
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ClientSessionEndpoint->UnregisterEventHandler<FConcertSession_ClientListUpdatedEvent>();
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ClientSessionEndpoint->UnregisterEventHandler<FConcertSession_SessionRenamedEvent>();
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ClientSessionEndpoint->UnregisterEventHandler<FConcertSession_UpdateClientInfoEvent>();
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// Unregister handlers for the custom session messages
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ClientSessionEndpoint->UnregisterEventHandler<FConcertSession_CustomEvent>();
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ClientSessionEndpoint->UnregisterRequestHandler<FConcertSession_CustomRequest>();
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// Unregister the session tick
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FTSTicker::GetCoreTicker().RemoveTicker(SessionTick);
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SessionTick.Reset();
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CommonShutdown();
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UE_LOG(LogConcert, Display, TEXT("Shutdown Concert session '%s' (Id: %s, Owner: %s)."), *SessionInfo.SessionName, *SessionInfo.SessionId.ToString(), *SessionInfo.OwnerUserName);
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}
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}
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void FConcertClientSession::Connect()
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{
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if (ConnectionStatus == EConcertConnectionStatus::Disconnected)
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{
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// Start connection handshake with server session
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ConnectionStatus = EConcertConnectionStatus::Connecting;
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OnConnectionChangedDelegate.Broadcast(*this, ConnectionStatus);
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UE_LOG(LogConcert, Display, TEXT("Connecting to Concert session '%s' (Id: %s, Owner: %s)."), *SessionInfo.SessionName, *SessionInfo.SessionId.ToString(), *SessionInfo.OwnerUserName);
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SendConnectionRequest();
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}
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}
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void FConcertClientSession::Disconnect()
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{
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if (ConnectionStatus != EConcertConnectionStatus::Disconnected)
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{
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if (ConnectionStatus == EConcertConnectionStatus::Connected)
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{
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SendDisconnection();
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}
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ConnectionStatus = EConcertConnectionStatus::Disconnected;
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UpdateSessionClients(TArray<FConcertSessionClientInfo>());
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// Send Disconnected event
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OnConnectionChangedDelegate.Broadcast(*this, ConnectionStatus);
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UE_LOG(LogConcert, Display, TEXT("Disconnected from Concert session '%s' (Id: %s, Owner: %s)."), *SessionInfo.SessionName, *SessionInfo.SessionId.ToString(), *SessionInfo.OwnerUserName);
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}
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}
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EConcertSendReceiveState FConcertClientSession::GetDefaultSendReceiveState()
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{
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FOnConcertEvaluateHasRole& OnEvaluateRole = UE::ConcertClient::VPRoleEvaluator();
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if (!OnEvaluateRole.IsBound())
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{
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return EConcertSendReceiveState::Default;
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}
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const UConcertClientConfig* ClientConfig = GetDefault<UConcertClientConfig>();
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const bool bIsReadOnly = OnEvaluateRole.Execute(ClientConfig->ReadOnlyAssignment);
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const bool bIsSendOnly = OnEvaluateRole.Execute(ClientConfig->SendOnlyAssignment);
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if (bIsSendOnly && !bIsReadOnly)
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{
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return EConcertSendReceiveState::SendOnly;
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}
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if (bIsReadOnly && !bIsSendOnly)
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{
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return EConcertSendReceiveState::ReceiveOnly;
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}
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return EConcertSendReceiveState::Default;
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}
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EConcertSendReceiveState FConcertClientSession::GetSendReceiveState() const
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{
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return SendReceiveState;
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}
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void LogSendReceiveStateChange(
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FConcertSessionInfo SessionInfo,
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EConcertSendReceiveState InState)
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{
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FString State = [InState]()
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{
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if (InState == EConcertSendReceiveState::Default)
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{
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return FString("Resumed");
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}
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else if (InState == EConcertSendReceiveState::SendOnly)
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{
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return FString("SendOnly");
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}
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return FString("ReceiveOnly");
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}();
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UE_LOG(LogConcert, Display,
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TEXT("%s Concert session '%s' (Id: %s, Owner: %s)."),
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*State,
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*SessionInfo.SessionName,
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*SessionInfo.SessionId.ToString(),
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*SessionInfo.OwnerUserName);
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}
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void FConcertClientSession::SetSendReceiveState(EConcertSendReceiveState InSendReceiveState)
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{
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SendReceiveState = InSendReceiveState;
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LogSendReceiveStateChange(SessionInfo, SendReceiveState);
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}
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FOnConcertClientSessionTick& FConcertClientSession::OnTick()
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{
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return OnTickDelegate;
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}
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FOnConcertClientSessionConnectionChanged& FConcertClientSession::OnConnectionChanged()
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{
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return OnConnectionChangedDelegate;
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}
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FOnConcertClientSessionClientChanged& FConcertClientSession::OnSessionClientChanged()
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{
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return OnSessionClientChangedDelegate;
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}
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FOnConcertSessionRenamed& FConcertClientSession::OnSessionRenamed()
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{
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return OnSessionRenamedDelegate;
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}
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FString FConcertClientSession::GetSessionWorkingDirectory() const
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{
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return SessionDirectory;
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}
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void FConcertClientSession::SendNextCustomEvent(const FConcertSequencedCustomEventManager::FPendingCustomEvent& PendingEvent)
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{
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ClientSessionEndpoint->SendEvent(PendingEvent.CustomEvent, PendingEvent.ServerEndpointId, PendingEvent.Flags, PendingEvent.Annotations);
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}
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void FConcertClientSession::InternalSendCustomEvent(const UScriptStruct* EventType, const void* EventData, const TArray<FGuid>& DestinationEndpointIds, EConcertMessageFlags Flags, TOptional<FConcertSequencedCustomEvent> InSequenceId)
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{
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if (DestinationEndpointIds.Num() == 0)
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{
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if (InSequenceId)
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{
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CustomEventSequenceManager.RemoveSequencedEvent(*InSequenceId);
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}
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return;
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}
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if (ConnectionStatus == EConcertConnectionStatus::Disconnected)
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{
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return;
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}
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// Build the event
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FConcertSession_CustomEvent CustomEvent;
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CommonBuildCustomEvent(EventType, EventData, GetSessionClientEndpointId(), DestinationEndpointIds, CustomEvent);
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// If the message is sent with the UniqueId flag, add an annotations so that we can uniquely identify multiple message bus copies of that message.
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TMap<FName, FString> Annotations;
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if (EnumHasAnyFlags(Flags, EConcertMessageFlags::UniqueId))
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{
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Annotations.Add(ConcertClientMessageIdName, FGuid::NewGuid().ToString());
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}
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using FPendingEvent = FConcertSequencedCustomEventManager::FPendingCustomEvent;
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FPendingEvent InEvent{
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MoveTemp(CustomEvent),
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Flags,
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MoveTemp(Annotations),
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SessionInfo.ServerEndpointId
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};
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const bool bNotReliablyOrdered = !EnumHasAnyFlags(Flags, EConcertMessageFlags::ReliableOrdered);
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const bool bHasCustomEventsPending = CustomEventSequenceManager.HasEventsPending();
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if (!bHasCustomEventsPending || bNotReliablyOrdered)
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{
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// We are not currently sequencing the events so send it immediately.
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SendNextCustomEvent(InEvent);
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return;
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}
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// If the user provided a id then use that id to store the value in the manager; otherwise create a new entry.
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FConcertSequencedCustomEvent EventId = InSequenceId ? *InSequenceId : CustomEventSequenceManager.AddSequencedCustomEvent();
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CustomEventSequenceManager.FillPendingSequenceEvent(EventId, MoveTemp(InEvent));
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while (TOptional<FPendingEvent> NextToSend = CustomEventSequenceManager.PopSendEvent())
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{
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SendNextCustomEvent(*NextToSend);
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}
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}
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void FConcertClientSession::InternalSendCustomRequest(const UScriptStruct* RequestType, const void* RequestData, const FGuid& DestinationEndpointId, const TSharedRef<IConcertSessionCustomResponseHandler>& Handler)
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{
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// TODO: don't send if not connected
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// Build the request
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FConcertSession_CustomRequest CustomRequest;
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CommonBuildCustomRequest(RequestType, RequestData, GetSessionClientEndpointId(), DestinationEndpointId, CustomRequest);
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// Send the request
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ClientSessionEndpoint->SendRequest<FConcertSession_CustomRequest, FConcertSession_CustomResponse>(CustomRequest, SessionInfo.ServerEndpointId)
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.Next([Handler](const FConcertSession_CustomResponse& Response)
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{
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// Handle the response
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CommonHandleCustomResponse(Response, Handler);
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});
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}
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void FConcertClientSession::UpdateLocalClientInfo(const FConcertClientInfoUpdate& UpdatedFields)
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{
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bool bUpdated = UpdatedFields.ApplyTo(ClientInfo);
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if (bUpdated)
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{
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// Notifies remote clients about the change.
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FConcertSession_UpdateClientInfoEvent ClientInfoUpdateEvent;
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ClientInfoUpdateEvent.SessionClient = FConcertSessionClientInfo{GetSessionClientEndpointId(), ClientInfo};
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ClientSessionEndpoint->SendEvent(ClientInfoUpdateEvent, SessionInfo.ServerEndpointId);
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}
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}
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void FConcertClientSession::HandleClientInfoUpdatedEvent(const FConcertMessageContext& Context)
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{
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const FConcertSession_UpdateClientInfoEvent* Message = Context.GetMessage<FConcertSession_UpdateClientInfoEvent>();
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if (FSessionClient* SessionClient = SessionClients.Find(Message->SessionClient.ClientEndpointId))
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{
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SessionClient->ClientInfo.ClientInfo = Message->SessionClient.ClientInfo;
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OnSessionClientChangedDelegate.Broadcast(*this, EConcertClientStatus::Updated, SessionClient->ClientInfo);
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}
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}
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void FConcertClientSession::HandleRemoteConnectionChanged(const FConcertEndpointContext& RemoteEndpointContext, EConcertRemoteEndpointConnection Connection)
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{
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if (RemoteEndpointContext.EndpointId == SessionInfo.ServerEndpointId && (Connection == EConcertRemoteEndpointConnection::TimedOut || Connection == EConcertRemoteEndpointConnection::ClosedRemotely))
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{
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Disconnect();
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}
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}
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void FConcertClientSession::HandleJoinSessionResultEvent(const FConcertMessageContext& Context)
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{
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const FConcertSession_JoinSessionResultEvent* Message = Context.GetMessage<FConcertSession_JoinSessionResultEvent>();
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// Discard answer not from the expecting session
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if (Message->SessionServerEndpointId != SessionInfo.ServerEndpointId)
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{
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return;
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}
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// If we aren't actively connecting, discard the message
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if (ConnectionStatus != EConcertConnectionStatus::Connecting)
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{
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return;
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}
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// This should not trigger, it would mean that the server discovery mechanism, allowed a mismatched protocol version
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check(Message->ConcertProtocolVersion == EConcertMessageVersion::LatestVersion);
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// Check the session answer
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switch (Message->ConnectionResult)
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{
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// Connection was refused, go back to disconnected
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case EConcertConnectionResult::ConnectionRefused:
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ConnectionStatus = EConcertConnectionStatus::Disconnected;
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OnConnectionChangedDelegate.Broadcast(*this, ConnectionStatus);
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UE_LOG(LogConcert, Display, TEXT("Disconnected from Concert session '%s' (Id: %s, Owner: %s): Connection Refused."), *SessionInfo.SessionName, *SessionInfo.SessionId.ToString(), *SessionInfo.OwnerUserName);
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break;
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case EConcertConnectionResult::AlreadyConnected:
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// falls through
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case EConcertConnectionResult::ConnectionAccepted:
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ConnectionAccepted(Message->SessionClients);
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break;
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default:
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break;
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}
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}
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void FConcertClientSession::HandleClientListUpdatedEvent(const FConcertMessageContext& Context)
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{
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const FConcertSession_ClientListUpdatedEvent* Message = Context.GetMessage<FConcertSession_ClientListUpdatedEvent>();
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check(Message->ConcertEndpointId == SessionInfo.ServerEndpointId);
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UpdateSessionClients(Message->SessionClients);
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}
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void FConcertClientSession::HandleSessionRenamedEvent(const FConcertMessageContext& Context)
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{
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const FConcertSession_SessionRenamedEvent* Message = Context.GetMessage<FConcertSession_SessionRenamedEvent>();
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check(Message->ConcertEndpointId == SessionInfo.ServerEndpointId);
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FString OldName = SessionInfo.SessionName;
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SessionInfo.SessionName = Message->NewName;
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OnSessionRenamedDelegate.Broadcast(OldName, Message->NewName);
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}
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void FConcertClientSession::TickConnection(float DeltaSeconds, const FDateTime& UtcNow)
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{
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if (LastConnectionTick + SessionTickFrequency <= UtcNow)
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{
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switch (ConnectionStatus)
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{
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case EConcertConnectionStatus::Connecting:
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SendConnectionRequest();
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break;
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default:
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// do nothing
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break;
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}
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LastConnectionTick = UtcNow;
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}
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// External callback when connected
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if (ConnectionStatus == EConcertConnectionStatus::Connected)
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{
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OnTickDelegate.Broadcast(*this, DeltaSeconds);
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}
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}
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void FConcertClientSession::SendConnectionRequest()
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{
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FConcertSession_DiscoverAndJoinSessionEvent DiscoverAndJoinSessionEvent;
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DiscoverAndJoinSessionEvent.ConcertProtocolVersion = EConcertMessageVersion::LatestVersion;
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DiscoverAndJoinSessionEvent.SessionServerEndpointId = SessionInfo.ServerEndpointId;
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DiscoverAndJoinSessionEvent.ClientInfo = ClientInfo;
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ClientSessionEndpoint->PublishEvent(DiscoverAndJoinSessionEvent);
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}
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void FConcertClientSession::SendDisconnection()
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{
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FConcertSession_LeaveSessionEvent LeaveSessionEvent;
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LeaveSessionEvent.SessionServerEndpointId = SessionInfo.ServerEndpointId;
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ClientSessionEndpoint->SendEvent(LeaveSessionEvent, SessionInfo.ServerEndpointId);
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}
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void FConcertClientSession::ConnectionAccepted(const TArray<FConcertSessionClientInfo>& InSessionClients)
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{
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check(ConnectionStatus != EConcertConnectionStatus::Connected);
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ConnectionStatus = EConcertConnectionStatus::Connected;
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// Raise connected event
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OnConnectionChangedDelegate.Broadcast(*this, ConnectionStatus);
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UE_LOG(LogConcert, Display, TEXT("Connected to Concert session '%s' (Id: %s, Owner: %s)."), *SessionInfo.SessionName, *SessionInfo.SessionId.ToString(), *SessionInfo.OwnerUserName);
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UpdateSessionClients(InSessionClients);
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}
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void FConcertClientSession::UpdateSessionClients(const TArray<FConcertSessionClientInfo>& InSessionClients)
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{
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// Add any new clients, or update existing ones
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TSet<FGuid> AvailableClientIds;
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AvailableClientIds.Reserve(InSessionClients.Num());
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for (const FConcertSessionClientInfo& SessionClientInfo : InSessionClients)
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{
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if (ClientSessionEndpoint->GetEndpointContext().EndpointId != SessionClientInfo.ClientEndpointId)
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{
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AvailableClientIds.Add(SessionClientInfo.ClientEndpointId);
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if (SessionClients.Contains(SessionClientInfo.ClientEndpointId))
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{
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// TODO: Client updates?
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//OnSessionClientChangedDelegate.Broadcast(*this, EConcertClientStatus::Updated, SessionClientInfo);
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}
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else
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{
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const FSessionClient& SessionClient = SessionClients.Add(SessionClientInfo.ClientEndpointId, FSessionClient{ SessionClientInfo, MakeShared<FConcertScratchpad, ESPMode::ThreadSafe>() });
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OnSessionClientChangedDelegate.Broadcast(*this, EConcertClientStatus::Connected, SessionClientInfo);
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UE_LOG(LogConcert, Display, TEXT("User '%s' (Endpoint: %s) joined Concert session '%s' (Id: %s, Owner: %s)."), *SessionClient.ClientInfo.ClientInfo.UserName, *SessionClient.ClientInfo.ClientEndpointId.ToString(), *SessionInfo.SessionName, *SessionInfo.SessionId.ToString(), *SessionInfo.OwnerUserName);
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}
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}
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}
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// Remove any old clients
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for (auto SessionClientIt = SessionClients.CreateIterator(); SessionClientIt; ++SessionClientIt)
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{
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if (!AvailableClientIds.Contains(SessionClientIt.Key()))
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{
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// Update array before broadcasting to ensure a client calling GetSessionClients() during broacast gets the up-to-date list.
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FSessionClient SessionClient = MoveTemp(SessionClientIt.Value());
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SessionClientIt.RemoveCurrent();
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OnSessionClientChangedDelegate.Broadcast(*this, EConcertClientStatus::Disconnected, SessionClient.ClientInfo);
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UE_LOG(LogConcert, Display, TEXT("User '%s' (Endpoint: %s) left Concert session '%s' (Id: %s, Owner: %s)."), *SessionClient.ClientInfo.ClientInfo.UserName, *SessionClient.ClientInfo.ClientEndpointId.ToString(), *SessionInfo.SessionName, *SessionInfo.SessionId.ToString(), *SessionInfo.OwnerUserName);
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}
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}
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}
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