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Unreal Engine C++ API Reference > Runtime > Core > Async
References
| Module | Core |
| Header | /Engine/Source/Runtime/Core/Public/Async/TaskGraphInterfaces.h |
| Include | #include "Async/TaskGraphInterfaces.h" |
Syntax
namespace ENamedThreads
{
enum Type
{
UnusedAnchor = -1,
RHIThread,
GameThread,
ActualRenderingThread = GameThread + 1,
AnyThread = 0xff,
MainQueue = 0x000,
LocalQueue = 0x100,
NumQueues = 2,
ThreadIndexMask = 0xff,
QueueIndexMask = 0x100,
QueueIndexShift = 8,
NormalTaskPriority = 0x000,
HighTaskPriority = 0x200,
NumTaskPriorities = 2,
TaskPriorityMask = 0x200,
TaskPriorityShift = 9,
NormalThreadPriority = 0x000,
HighThreadPriority = 0x400,
BackgroundThreadPriority = 0x800,
NumThreadPriorities = 3,
ThreadPriorityMask = 0xC00,
ThreadPriorityShift = 10,
GameThread_Local = GameThread | LocalQueue,
ActualRenderingThread_Local = ActualRenderingThread | LocalQueue,
AnyHiPriThreadNormalTask = AnyThread | HighThreadPriority | NormalTaskPriority,
AnyHiPriThreadHiPriTask = AnyThread | HighThreadPriority | HighTaskPriority,
AnyNormalThreadNormalTask = AnyThread | NormalThreadPriority | NormalTaskPriority,
AnyNormalThreadHiPriTask = AnyThread | NormalThreadPriority | HighTaskPriority,
AnyBackgroundThreadNormalTask = AnyThread | BackgroundThreadPriority | NormalTaskPriority,
AnyBackgroundHiPriTask = AnyThread | BackgroundThreadPriority | HighTaskPriority,
}
}
Values
| Name | Description |
|---|---|
| UnusedAnchor | |
| RHIThread | The always-present, named threads are listed next |
| GameThread | |
| ActualRenderingThread | The render thread is sometimes the game thread and is sometimes the actual rendering thread. |
| AnyThread | Not actually a thread index. Means "Unknown Thread" or "Any Unnamed Thread" |
| MainQueue | High bits are used for a queue index and priority |
| LocalQueue | |
| NumQueues | |
| ThreadIndexMask | |
| QueueIndexMask | |
| QueueIndexShift | |
| NormalTaskPriority | High bits are used for a queue index task priority and thread priority |
| HighTaskPriority | |
| NumTaskPriorities | |
| TaskPriorityMask | |
| TaskPriorityShift | |
| NormalThreadPriority | |
| HighThreadPriority | |
| BackgroundThreadPriority | |
| NumThreadPriorities | |
| ThreadPriorityMask | |
| ThreadPriorityShift | |
| GameThread_Local | Combinations |
| ActualRenderingThread_Local | |
| AnyHiPriThreadNormalTask | |
| AnyHiPriThreadHiPriTask | |
| AnyNormalThreadNormalTask | |
| AnyNormalThreadHiPriTask | |
| AnyBackgroundThreadNormalTask | |
| AnyBackgroundHiPriTask |
Remarks
Forward declaration for ENamedThreads