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Unreal Engine C++ API Reference > Developer > DerivedDataCache
Inheritance Hierarchy
- IRequest
References
Module | DerivedDataCache |
Header | /Engine/Source/Developer/DerivedDataCache/Public/DerivedDataRequest.h |
Include | #include "DerivedDataRequest.h" |
Syntax
class IRequest
Remarks
Interface to an asynchronous request that can be prioritized or canceled.
Use IRequestOwner, typically FRequestOwner, to reference requests between its Begin and End.
Requests typically invoke a callback on completion, and must not return from Cancel or Wait on any thread until any associated callbacks have finished executing. This property is crucial to allowing requests to be chained or nested by creating new requests from within callbacks.
Destructors
Type | Name | Description |
---|---|---|
~IRequest () |
Functions
Type | Name | Description |
---|---|---|
void | AddRef () | Add a reference to the request. |
void | Cancel () | Cancel the request and invoke any associated callback. |
void | Release () | Release a reference. The request is deleted when the last reference is released. |
void | SetPriority ( EPriority Priority ) | Set the priority of the request. |
void | Wait () | Block the calling thread until the request is complete. |