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44 lines
917 B
C++
44 lines
917 B
C++
#include <Common/TransactionID.h>
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#include <Common/SipHash.h>
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#include <IO/ReadHelpers.h>
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#include <IO/WriteHelpers.h>
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namespace DB
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{
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TIDHash TransactionID::getHash() const
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{
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SipHash hash;
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hash.update(start_csn);
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hash.update(local_tid);
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hash.update(host_id);
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return hash.get64();
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}
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void TransactionID::write(const TransactionID & tid, WriteBuffer & buf)
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{
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writeChar('(', buf);
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writeText(tid.start_csn, buf);
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writeCString(", ", buf);
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writeText(tid.local_tid, buf);
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writeCString(", ", buf);
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writeText(tid.host_id, buf);
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writeChar(')', buf);
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}
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TransactionID TransactionID::read(ReadBuffer & buf)
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{
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TransactionID tid = Tx::EmptyTID;
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assertChar('(', buf);
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readText(tid.start_csn, buf);
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assertString(", ", buf);
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readText(tid.local_tid, buf);
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assertString(", ", buf);
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readText(tid.host_id, buf);
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assertChar(')', buf);
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return tid;
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}
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}
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