111 lines
3.2 KiB
C++
111 lines
3.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "IOS/ApplePlatformBackgroundHttpRequest.h"
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#include "IOS/ApplePlatformBackgroundHttpManager.h"
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#include "IOS/ApplePlatformBackgroundHttp.h"
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#include "IOS/IOSBackgroundURLSessionHandler.h"
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#include "HAL/PlatformFile.h"
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#include "HAL/PlatformFileManager.h"
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FApplePlatformBackgroundHttpRequest::FApplePlatformBackgroundHttpRequest()
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: DownloadId(FBackgroundURLSessionHandler::InvalidDownloadId)
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{
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}
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void FApplePlatformBackgroundHttpRequest::PauseRequest()
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{
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FBackgroundURLSessionHandler::PauseDownload(DownloadId);
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}
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void FApplePlatformBackgroundHttpRequest::ResumeRequest()
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{
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FBackgroundURLSessionHandler::ResumeDownload(DownloadId);
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}
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#if !UE_BUILD_SHIPPING
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void FApplePlatformBackgroundHttpRequest::GetDebugText(TArray<FString>& Output)
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{
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FBackgroundURLSessionHandler::GetDownloadDebugText(DownloadId, Output);
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}
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#endif
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void FApplePlatformBackgroundHttpRequest::UpdateProgress()
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{
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if (DownloadId == FBackgroundURLSessionHandler::InvalidDownloadId)
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{
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return;
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}
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const uint64 CurrentDownloadedBytes = FBackgroundURLSessionHandler::GetCurrentDownloadedBytes(DownloadId);
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const uint64 BytesSinceLastReport = CurrentDownloadedBytes > LastReportedDownloadedBytes ? CurrentDownloadedBytes - LastReportedDownloadedBytes : 0;
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LastReportedDownloadedBytes = CurrentDownloadedBytes;
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if (BytesSinceLastReport > 0)
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{
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OnProgressUpdated().ExecuteIfBound(SharedThis(this), CurrentDownloadedBytes, BytesSinceLastReport);
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}
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int32 ResultHTTPCode;
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FString TemporaryFilePath;
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if (FBackgroundURLSessionHandler::IsDownloadFinished(DownloadId, ResultHTTPCode, TemporaryFilePath))
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{
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if (!OptionalMetricsInfo.IsSet())
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{
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// need to wait for metrics collection
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if (MetricsWaitCounter == -1)
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{
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MetricsWaitCounter = 30; // start a countdown
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return;
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}
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else
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{
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MetricsWaitCounter--;
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if (MetricsWaitCounter == 0)
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{
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// time up, still no metrics? report 0s
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MetricsWaitCounter = -1;
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UE_LOG(LogBackgroundHttpRequest, Error, TEXT("OptionalMetricsInfo still missing after waiting for 30 cycles: RequestID:%s"), *GetRequestID());
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OptionalMetricsInfo = {
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.TotalBytesDownloaded = 0,
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.DownloadDuration = 0.0f
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};
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}
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else
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{
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// count down, try again next cycle
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return;
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}
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}
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}
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else
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{
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MetricsWaitCounter = -1;
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}
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const bool bFileExists = !TemporaryFilePath.IsEmpty() && FPlatformFileManager::Get().GetPlatformFile().FileExists(*TemporaryFilePath);
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// Fail request if we can't access the file
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if (!bFileExists)
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{
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ResultHTTPCode = EHttpResponseCodes::ServerError;
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}
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FBackgroundHttpResponsePtr Response = FPlatformBackgroundHttp::ConstructBackgroundResponse(ResultHTTPCode, TemporaryFilePath);
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CompleteWithExistingResponseData(Response); // will internally call RemoveRequest which will cancel download
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}
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}
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float FApplePlatformBackgroundHttpRequest::BackgroundRequestPriorityToNSURLSessionPriority(const EBackgroundHTTPPriority Priority)
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{
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switch (Priority)
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{
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case EBackgroundHTTPPriority::High:
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return NSURLSessionTaskPriorityHigh;
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case EBackgroundHTTPPriority::Low:
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return NSURLSessionTaskPriorityLow;
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case EBackgroundHTTPPriority::Normal:
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default:
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return NSURLSessionTaskPriorityDefault;
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}
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}
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