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42 lines
934 B
C++
42 lines
934 B
C++
#pragma once
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#include <vector>
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#include <set>
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#include <mutex>
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#include <Processors/IProcessor.h>
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template <typename>
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class ThreadPoolImpl;
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class ThreadFromGlobalPool;
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using ThreadPool = ThreadPoolImpl<ThreadFromGlobalPool>;
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namespace DB
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{
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/** Wraps pipeline in a single processor.
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* This processor has no inputs and outputs and just executes the pipeline,
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* performing all synchronous work within a threadpool.
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*/
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class ParallelPipelineExecutor : public IProcessor
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{
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private:
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Processors processors;
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ThreadPool & pool;
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std::set<IProcessor *> active_processors;
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std::mutex mutex;
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IProcessor * current_processor = nullptr;
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Status current_status;
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public:
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ParallelPipelineExecutor(const Processors & processors, ThreadPool & pool);
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String getName() const override { return "ParallelPipelineExecutor"; }
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Status prepare() override;
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void schedule(EventCounter & watch) override;
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};
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}
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