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API > API/Runtime > API/Runtime/Core > API/Runtime/Core/Async
References
| Module | Core |
| Header | /Engine/Source/Runtime/Core/Public/Async/TaskGraphInterfaces.h |
| Include | #include "Async/TaskGraphInterfaces.h" |
Syntax
class FGraphEvent
Remarks
A FGraphEvent is a list of tasks waiting for something. These tasks are call the subsequents. A graph event is a prerequisite for each of its subsequents. Graph events have a lifetime managed by reference counting.
Constructors
No constructors are accessible with public or protected access.
Destructors
No destructors are accessible with public or protected access.
Functions
| Type | Name | Description | |
|---|---|---|---|
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uint32 | AddRef () |
Increases the reference count |
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bool | AddSubsequent
(
FBaseGraphTask* Subsequent |
Attempts to a new subsequent task. |
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void | Verification function to ensure that nobody was tried to add WaitUntil's outside of the context of execution | |
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FGraphEventRef | Does nothing and is needed only for compatibility with the new frontend | |
  |
FGraphEventRef | A factory method to create a graph event. | |
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void | DispatchSubsequents
(
ENamedThreads::Type CurrentThreadIfKnown |
"Complete" the event. |
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void | DispatchSubsequents
(
TArray< FBaseGraphTask* >& NewTasks, |
"Complete" the event. |
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void | DontCompleteUntil
(
FGraphEventRef EventToWaitFor |
Delay the firing of this event until the given event fires. |
  |
uint32 | GetRefCount () |
|
  |
TaskTrace::FId | GetTraceId () |
|
  |
bool | IsComplete () |
Determine if the event has been completed. This can be used to poll for completion. |
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uint32 | Release () |
Decreases the reference count and destroys the graph event if it is zero. |
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void | SetDebugName
(
const TCHAR* Name |
Sets a name for the event for debugging purposes. |
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void | SetGatherThreadForDontCompleteUntil
(
ENamedThreads::Type InThreadToDoGatherOn |
Sets the thread that you want to execute the null gather task on. |
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void | Wait
(
ENamedThreads::Type CurrentThreadIfKnown |
A convenient short version of `FTaskGraphInterface::WaitUntilTaskCompletes_ |