1 | #include <Processors/ISink.h> |
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2 | |
3 | |
4 | namespace DB |
5 | { |
6 | |
7 | ISink::ISink(Block header) |
8 | : IProcessor({std::move(header)}, {}), input(inputs.front()) |
9 | { |
10 | } |
11 | |
12 | ISink::Status ISink::prepare() |
13 | { |
14 | if (has_input) |
15 | return Status::Ready; |
16 | |
17 | if (input.isFinished()) |
18 | return Status::Finished; |
19 | |
20 | input.setNeeded(); |
21 | if (!input.hasData()) |
22 | return Status::NeedData; |
23 | |
24 | current_chunk = input.pull(); |
25 | has_input = true; |
26 | return Status::Ready; |
27 | } |
28 | |
29 | void ISink::work() |
30 | { |
31 | consume(std::move(current_chunk)); |
32 | has_input = false; |
33 | } |
34 | |
35 | } |
36 | |
37 |