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31 lines
967 B
C++
31 lines
967 B
C++
#pragma once
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#include <Processors/IProcessor.h>
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namespace DB
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{
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/// Look for first Ready or Async processor by depth-first search in needed input ports and full output ports.
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/// NOTE: Pipeline must not have cycles.
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//template <typename Visit>
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//void traverse(IProcessor & processor, Visit && visit)
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//{
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// IProcessor::Status status = visit(processor);
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//
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// if (status == IProcessor::Status::Ready || status == IProcessor::Status::Async)
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// return;
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//
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// if (status == IProcessor::Status::NeedData)
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// for (auto & input : processor.getInputs())
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// if (input.isNeeded() && !input.hasData())
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// traverse(input.getOutputPort().getProcessor(), std::forward<Visit>(visit));
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//
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// if (status == IProcessor::Status::PortFull)
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// for (auto & output : processor.getOutputs())
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// if (output.hasData())
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// traverse(output.getInputPort().getProcessor(), std::forward<Visit>(visit));
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//}
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}
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