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/*-------------------------------------------------------------------------
*
* mxactdesc.c
* rmgr descriptor routines for access/transam/multixact.c
*
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* src/backend/access/rmgrdesc/mxactdesc.c
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/multixact.h"
void
multixact_desc(StringInfo buf, uint8 xl_info, char *rec)
{
uint8 info = xl_info & ~XLR_INFO_MASK;
if (info == XLOG_MULTIXACT_ZERO_OFF_PAGE)
{
int pageno;
memcpy(&pageno, rec, sizeof(int));
appendStringInfo(buf, "zero offsets page: %d", pageno);
}
else if (info == XLOG_MULTIXACT_ZERO_MEM_PAGE)
{
int pageno;
memcpy(&pageno, rec, sizeof(int));
appendStringInfo(buf, "zero members page: %d", pageno);
}
else if (info == XLOG_MULTIXACT_CREATE_ID)
{
xl_multixact_create *xlrec = (xl_multixact_create *) rec;
int i;
appendStringInfo(buf, "create multixact %u offset %u:",
xlrec->mid, xlrec->moff);
for (i = 0; i < xlrec->nxids; i++)
appendStringInfo(buf, " %u", xlrec->xids[i]);
}
else
appendStringInfo(buf, "UNKNOWN");
}
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