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31 lines
937 B
C++
31 lines
937 B
C++
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#pragma once
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#include <atomic>
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#include <functional>
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namespace DB
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{
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class ReadBuffer;
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class WriteBuffer;
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/** Копирует данные из ReadBuffer в WriteBuffer, все что есть.
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*/
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void copyData(ReadBuffer & from, WriteBuffer & to);
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/** Копирует bytes байт из ReadBuffer в WriteBuffer. Если нет bytes байт, то кидает исключение.
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*/
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void copyData(ReadBuffer & from, WriteBuffer & to, size_t bytes);
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/** То же самое, с условием на остановку.
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*/
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void copyData(ReadBuffer & from, WriteBuffer & to, std::atomic<bool> & is_cancelled);
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void copyData(ReadBuffer & from, WriteBuffer & to, size_t bytes, std::atomic<bool> & is_cancelled);
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void copyData(ReadBuffer & from, WriteBuffer & to, std::function<void()> cancellation_hook);
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void copyData(ReadBuffer & from, WriteBuffer & to, size_t bytes, std::function<void()> cancellation_hook);
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}
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