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37 lines
715 B
C++
37 lines
715 B
C++
#pragma once
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#include <IO/WriteBuffer.h>
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namespace DB
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{
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/** Writing packets.
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* https://dev.mysql.com/doc/internals/en/mysql-packet.html
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*/
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class MySQLPacketPayloadWriteBuffer : public WriteBuffer
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{
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public:
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MySQLPacketPayloadWriteBuffer(WriteBuffer & out_, size_t payload_length_, uint8_t & sequence_id_);
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bool remainingPayloadSize() { return total_left; }
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protected:
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void nextImpl() override;
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private:
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WriteBuffer & out;
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uint8_t & sequence_id;
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size_t total_left = 0;
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size_t payload_length = 0;
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size_t bytes_written = 0;
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bool eof = false;
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void startNewPacket();
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/// Sets working buffer to the rest of current packet payload.
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void setWorkingBuffer();
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};
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}
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