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0756ef15b9
* Multicast delegate Add* calls now return FDelegateHandles, and Remove* calls are now all deprecated, except for a new Remove function which takes a FDelegateHandle. * New FConsoleManager::RegisterConsoleVariableSink_Handle and UnregisterConsoleVariableSink_Handle functions which work in terms of FConsoleVariableSinkHandle. * Timer calls which don't take FTimerHandles are deprecated. * FTicker::AddTicker now returns an FDelegateHandle and is removed by an overloaded Remove function. * DEFINE_ONLINE_DELEGATE* macros now define _Handle variants of the Add/Remove functions which return/take handles. * Various other handle-based registration changes. * Some unity build fixes. * Some simplification of delegate code. * Fixes for lots of existing code to use handle-based registration and unregistration. #codereview robert.manuszewski [CL 2400883 by Steve Robb in Main branch]
56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/inotify.h>
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#define EVENT_SIZE ( sizeof (struct inotify_event) )
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#define BUF_LEN ( 1024 * ( EVENT_SIZE + 16 ) )
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class FDirectoryWatchRequestLinux
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{
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public:
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FDirectoryWatchRequestLinux();
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virtual ~FDirectoryWatchRequestLinux();
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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 );
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/** Removes a delegate to get fired when the directory changes */
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DELEGATE_DEPRECATED("This overload of RemoveDelegate is deprecated, instead pass the result of AddDelegate.")
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bool RemoveDelegate( const IDirectoryWatcher::FDirectoryChanged& InDelegate );
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/** Same as above, but for use within other deprecated calls to prevent multiple deprecation warnings */
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bool DEPRECATED_RemoveDelegate( const IDirectoryWatcher::FDirectoryChanged& InDelegate );
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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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FString Directory;
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bool bRunning;
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bool bEndWatchRequestInvoked;
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int FileDescriptor;
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int * WatchDescriptor;
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int NotifyFilter;
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TArray<FString> AllFiles;
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TArray<IDirectoryWatcher::FDirectoryChanged> Delegates;
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TArray<FFileChangeData> FileChanges;
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void Shutdown();
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void ProcessChanges();
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};
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