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42 lines
1.6 KiB
42 lines
1.6 KiB
#pragma once
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#include "Object.h"
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#include "ZipOperation.generated.h"
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class SevenZipCallbackHandler;
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/**
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* Used to track a zip/unzip operation on the WFULambdaRunnable ThreadPool and allows the ability to terminate the
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* operation early.
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*/
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UCLASS(BlueprintType)
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class ZIPUTILITY_API UZipOperation : public UObject
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{
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GENERATED_BODY()
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public:
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UZipOperation();
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// Stops this zip/unzip if it is still valid. This stop event can occur in two places:
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// 1. The ThreadPool queue, if it can be stopped here then the operation has not yet started.
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// 2. The SevenZip layer, once the operation has started, it can be canceled while still running.
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// Note that calling this carries no guarantees of a successful stop, the end result might be one of:
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// * The file still got extracted (you were too late)
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// * The file was never extracted (caught it on time)
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// * The file was created but is of zero size (oops)
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// * The file was created, is of non-zero size but is not all there (cut off in the middle)
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// So, it could be a good idea to do some file housekeeping afterward.
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UFUNCTION(BlueprintCallable, Category = "Zip Operation")
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void StopOperation();
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// Set the callback handler
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void SetCallbackHandler(SevenZipCallbackHandler* Handler);
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// Set the queued work
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void SetThreadPoolWorker(IQueuedWork* Work);
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private:
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// A pointer to the callback for this operation. Once the operation completes, this
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// pointer will become invalid.
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SevenZipCallbackHandler* CallbackHandler;
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// The work that was queued on the async threadpool in WFULambdaRunnable
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IQueuedWork* ThreadPoolWork;
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};
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