/*-------------------------------------------------------------------------
*
* genericdesc . c
* rmgr descriptor routines for access / transam / generic_xlog . c
*
*
* Portions Copyright ( c ) 1996 - 2025 , PostgreSQL Global Development Group
* Portions Copyright ( c ) 1994 , Regents of the University of California
*
* src / backend / access / rmgrdesc / genericdesc . c
*
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
*/
#include "postgres.h"
#include "access/generic_xlog.h"
#include "lib/stringinfo.h"
/*
* Description of generic xlog record : write page regions that this record
* overrides .
*/
void
generic_desc(StringInfo buf, XLogReaderState *record)
{
Pointer ptr = XLogRecGetData(record),
end = ptr + XLogRecGetDataLen(record);
while (ptr < end)
{
OffsetNumber offset,
length;
memcpy(&offset, ptr, sizeof (offset));
ptr += sizeof (offset);
memcpy(&length, ptr, sizeof (length));
ptr += sizeof (length);
ptr += length;
if (ptr < end)
appendStringInfo(buf, "offset %u, length %u; " , offset, length);
else
appendStringInfo(buf, "offset %u, length %u" , offset, length);
}
}
/*
* Identification of generic xlog record : we don ' t distinguish any subtypes
* inside generic xlog records .
*/
const char *
generic_identify(uint8 info)
{
return "Generic" ;
}
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(vorverarbeitet am 2026-08-08)
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