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#rnx #rb none #ROBOMERGE-OWNER: ryan.durand #ROBOMERGE-AUTHOR: ryan.durand #ROBOMERGE-SOURCE: CL 10869210 via CL 10869511 via CL 10869900 #ROBOMERGE-BOT: (v613-10869866) [CL 10870549 by ryan durand in Main branch]
87 lines
3.0 KiB
C++
87 lines
3.0 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Interfaces/IBackgroundHttpRequest.h"
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#include "Interfaces/IHttpRequest.h"
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#include "BackgroundHttpRequestImpl.h"
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/**
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* Contains implementation of Apple specific background http requests
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*/
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class BACKGROUNDHTTP_API FApplePlatformBackgroundHttpRequest
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: public FBackgroundHttpRequestImpl
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{
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public:
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FApplePlatformBackgroundHttpRequest();
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virtual ~FApplePlatformBackgroundHttpRequest() {}
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virtual void CompleteWithExistingResponseData(FBackgroundHttpResponsePtr BackgroundResponse) override;
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virtual void PauseRequest() override;
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virtual void ResumeRequest() override;
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virtual bool IsTaskComplete() const;
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//Used to provide some extra debug information over normal GetRequestID()
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//Returns string in format of X.Y where X is the underlying Task Identifier if set and Y is what was set in the SetRequestID() call if this reqeust has associated with a task.
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//Returns the same as GetRequestID() if no task has been associated yet.
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const FString& GetRequestDebugID() const;
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private:
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//Super simple linked list with volatile pointers to next element
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struct FTaskNode
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{
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NSURLSessionTask* OurTask;
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volatile FTaskNode* NextNode;
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};
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private:
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const FString& GetURLForRetry(bool bShouldIncrementRetryCountFirst);
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bool AssociateWithTask(NSURLSessionTask* ExistingTask);
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void SetRequestAsSuccess(const FString& CompletedTempDownloadLocation);
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void SetRequestAsFailed();
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void CompleteRequest_Internal(bool bWasRequestSuccess, const FString& CompletedTempDownloadLocation);
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void CancelActiveTask();
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//on iOS we need to delay when we send progress updates as they can come from a background thread
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//save off results in UpdateDownloadProgress to send later when we get a SendDownloadProgressUpdate
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void UpdateDownloadProgress(int64_t TotalDownloaded, int64_t DownloadedSinceLastUpdate);
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void SendDownloadProgressUpdate();
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void ResetProgressTracking();
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void ActivateUnderlyingTask();
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bool IsUnderlyingTaskActive();
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void PauseUnderlyingTask();
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bool IsUnderlyingTaskPaused();
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bool TickTimeOutTimer(float DeltaTime);
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void ResetTimeOutTimer();
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FString CompletedTempDownloadLocation;
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volatile float ActiveTimeOutTimer;
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FThreadSafeCounter RetryCount;
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FThreadSafeCounter ResumeDataRetryCount;
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volatile FTaskNode* FirstTask;
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volatile int FirstTaskIdentifier;
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FString CombinedRequestID;
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volatile int32 bIsTaskActive;
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volatile int32 bIsTaskPaused;
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volatile int32 bIsCompleted;
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volatile int32 bIsFailed;
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volatile int32 bIsRequestSwitchingTasks;
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volatile int32 bWasTaskStartedInBG;
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volatile int32 bHasAlreadyFinishedRequest;
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volatile int32 bIsPendingCancel;
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volatile int64 DownloadProgress;
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volatile int64 DownloadProgressSinceLastUpdateSent;
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friend class FApplePlatformBackgroundHttpManager;
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};
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typedef TSharedPtr<class FApplePlatformBackgroundHttpRequest, ESPMode::ThreadSafe> FAppleBackgroundHttpRequestPtr;
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