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29 lines
616 B
C++
29 lines
616 B
C++
#pragma once
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#include <Core/Types.h>
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#include <IO/ReadBuffer.h>
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namespace DB
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{
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/** Allows to read from another ReadBuffer no more than the specified number of bytes.
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* Note that the nested ReadBuffer may read slightly more data internally to fill its buffer.
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*/
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class LimitReadBuffer : public ReadBuffer
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{
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private:
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ReadBuffer & in;
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UInt64 limit;
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bool throw_exception;
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std::string exception_message;
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bool nextImpl() override;
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public:
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LimitReadBuffer(ReadBuffer & in_, UInt64 limit_, bool throw_exception_, std::string exception_message_ = {});
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~LimitReadBuffer() override;
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};
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}
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