Poll

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API > API/Runtime > API/Runtime/RHI > API/Runtime/RHI/FRHIGPUFence

Overloads

Poll()

Description

Poll the fence to see if the GPU has signaled it. CAUTION: Do not call poll in a loop to block until completion. Some platform RHIs will not signal fences unless the RHI thread continues to make progress and submit GPU work.

To block for completion, call Wait(), which can only be done from the render thread.

Use Poll() only to check a fence. If it returns false, continue to do useful work and recheck later, ideally on the following frame.

bool Poll() const  
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bool Poll() const

True if and only if the GPU fence has been inserted and the GPU has signaled the fence.

Poll(FRHIGPUMask)

Description

Poll on a subset of the GPUs that this fence supports.

CAUTION: Do not call poll in a loop to block until completion. Some platform RHIs will not signal fences unless the RHI thread continues to make progress and submit GPU work.

To block for completion, call Wait(), which can only be done from the render thread.

Use Poll() only to check a fence. If it returns false, continue to do useful work and recheck later, ideally on the following frame.

virtual bool Poll  
(  
    FRHIGPUMask GPUMask  
) const  
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virtual bool Poll (     FRHIGPUMask GPUMask ) const