ClickHouse/dbms/src/Processors/ISink.cpp

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#include <Processors/ISink.h>
namespace DB
{
ISink::ISink(Block header)
: IProcessor({std::move(header)}, {}), input(inputs.front())
{
}
ISink::Status ISink::prepare()
{
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if (has_input)
return Status::Ready;
if (input.isFinished())
return Status::Finished;
input.setNeeded();
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if (!input.hasData())
return Status::NeedData;
current_chunk = input.pull();
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has_input = true;
return Status::Ready;
}
void ISink::work()
{
consume(std::move(current_chunk));
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has_input = false;
}
}