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28 lines
559 B
C++
28 lines
559 B
C++
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#include <IO/ReadBufferFromFileDecorator.h>
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namespace DB
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{
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class BoundedReadBuffer : public ReadBufferFromFileDecorator
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{
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public:
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explicit BoundedReadBuffer(std::unique_ptr<SeekableReadBuffer> impl_);
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bool supportsRightBoundedReads() const override { return true; }
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void setReadUntilPosition(size_t position) override;
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void setReadUntilEnd() override;
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bool nextImpl() override;
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off_t seek(off_t off, int whence) override;
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private:
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std::optional<size_t> read_until_position;
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size_t file_offset_of_buffer_end = 0;
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};
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}
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