50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Delegates/Delegate.h"
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#include "IDirectoryWatcher.h"
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#include "Containers/UnrealString.h"
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#include "Containers/Array.h"
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#include <CoreServices/CoreServices.h>
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#include "Misc/ScopeRWLock.h"
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class FDirectoryWatchRequestMac
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{
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public:
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FDirectoryWatchRequestMac();
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virtual ~FDirectoryWatchRequestMac();
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/** Sets up the directory handle and request information */
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bool Init(const FString& InDirectory);
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/** Adds a delegate to get fired when the directory changes */
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FDelegateHandle AddDelegate( const IDirectoryWatcher::FDirectoryChanged& InDelegate, uint32 Flags );
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/** Removes a delegate to get fired when the directory changes */
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bool RemoveDelegate( FDelegateHandle InHandle );
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/** Returns true if this request has any delegates listening to directory changes */
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bool HasDelegates() const;
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/** Prepares the request for deletion */
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void EndWatchRequest();
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/** Triggers all pending file change notifications */
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void ProcessPendingNotifications();
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private:
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FSEventStreamRef EventStream;
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bool bRunning;
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bool bEndWatchRequestInvoked;
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/** A delegate with its corresponding IDirectoryWatcher::WatchOptions flags */
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typedef TPair<IDirectoryWatcher::FDirectoryChanged, uint32> FWatchDelegate;
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TArray<FWatchDelegate> Delegates;
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/** Each FFileChangeData tracks whether it is a directory or not */
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TArray<TPair<FFileChangeData, bool>> FileChanges;
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FRWLock FileChangesLock;
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friend void DirectoryWatchMacCallback( ConstFSEventStreamRef StreamRef, void* WatchRequestPtr, size_t EventCount, void* EventPaths, const FSEventStreamEventFlags EventFlags[], const FSEventStreamEventId EventIDs[] );
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void ProcessChanges( size_t EventCount, void* EventPaths, const FSEventStreamEventFlags EventFlags[] );
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void Shutdown( void );
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};
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