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/*-------------------------------------------------------------------------
*
* xactdesc.c
* rmgr descriptor routines for access/transam/xact.c
*
* Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* src/backend/access/rmgrdesc/xactdesc.c
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "access/xact.h"
#include "catalog/catalog.h"
#include "storage/sinval.h"
#include "utils/timestamp.h"
static void
xact_desc_commit(StringInfo buf, xl_xact_commit *xlrec)
{
int i;
TransactionId *subxacts;
subxacts = (TransactionId *) &xlrec->xnodes[xlrec->nrels];
appendStringInfoString(buf, timestamptz_to_str(xlrec->xact_time));
if (xlrec->nrels > 0)
{
appendStringInfoString(buf, "; rels:");
for (i = 0; i < xlrec->nrels; i++)
{
char *path = relpathperm(xlrec->xnodes[i], MAIN_FORKNUM);
appendStringInfo(buf, " %s", path);
pfree(path);
}
}
if (xlrec->nsubxacts > 0)
{
appendStringInfoString(buf, "; subxacts:");
for (i = 0; i < xlrec->nsubxacts; i++)
appendStringInfo(buf, " %u", subxacts[i]);
}
if (xlrec->nmsgs > 0)
{
SharedInvalidationMessage *msgs;
msgs = (SharedInvalidationMessage *) &subxacts[xlrec->nsubxacts];
if (XactCompletionRelcacheInitFileInval(xlrec->xinfo))
appendStringInfo(buf, "; relcache init file inval dbid %u tsid %u",
xlrec->dbId, xlrec->tsId);
appendStringInfoString(buf, "; inval msgs:");
for (i = 0; i < xlrec->nmsgs; i++)
{
SharedInvalidationMessage *msg = &msgs[i];
if (msg->id >= 0)
appendStringInfo(buf, " catcache %d", msg->id);
else if (msg->id == SHAREDINVALCATALOG_ID)
appendStringInfo(buf, " catalog %u", msg->cat.catId);
else if (msg->id == SHAREDINVALRELCACHE_ID)
appendStringInfo(buf, " relcache %u", msg->rc.relId);
/* not expected, but print something anyway */
else if (msg->id == SHAREDINVALSMGR_ID)
appendStringInfoString(buf, " smgr");
/* not expected, but print something anyway */
else if (msg->id == SHAREDINVALRELMAP_ID)
appendStringInfoString(buf, " relmap");
else if (msg->id == SHAREDINVALSNAPSHOT_ID)
appendStringInfo(buf, " snapshot %u", msg->sn.relId);
else
appendStringInfo(buf, " unknown id %d", msg->id);
}
}
}
static void
xact_desc_commit_compact(StringInfo buf, xl_xact_commit_compact *xlrec)
{
int i;
appendStringInfoString(buf, timestamptz_to_str(xlrec->xact_time));
if (xlrec->nsubxacts > 0)
{
appendStringInfoString(buf, "; subxacts:");
for (i = 0; i < xlrec->nsubxacts; i++)
appendStringInfo(buf, " %u", xlrec->subxacts[i]);
}
}
static void
xact_desc_abort(StringInfo buf, xl_xact_abort *xlrec)
{
int i;
appendStringInfoString(buf, timestamptz_to_str(xlrec->xact_time));
if (xlrec->nrels > 0)
{
appendStringInfoString(buf, "; rels:");
for (i = 0; i < xlrec->nrels; i++)
{
char *path = relpathperm(xlrec->xnodes[i], MAIN_FORKNUM);
appendStringInfo(buf, " %s", path);
pfree(path);
}
}
if (xlrec->nsubxacts > 0)
{
TransactionId *xacts = (TransactionId *)
&xlrec->xnodes[xlrec->nrels];
appendStringInfoString(buf, "; subxacts:");
for (i = 0; i < xlrec->nsubxacts; i++)
appendStringInfo(buf, " %u", xacts[i]);
}
}
static void
xact_desc_assignment(StringInfo buf, xl_xact_assignment *xlrec)
{
int i;
appendStringInfoString(buf, "subxacts:");
for (i = 0; i < xlrec->nsubxacts; i++)
appendStringInfo(buf, " %u", xlrec->xsub[i]);
}
void
xact_desc(StringInfo buf, XLogRecord *record)
{
char *rec = XLogRecGetData(record);
uint8 info = record->xl_info & ~XLR_INFO_MASK;
if (info == XLOG_XACT_COMMIT_COMPACT)
{
xl_xact_commit_compact *xlrec = (xl_xact_commit_compact *) rec;
xact_desc_commit_compact(buf, xlrec);
}
else if (info == XLOG_XACT_COMMIT)
{
xl_xact_commit *xlrec = (xl_xact_commit *) rec;
xact_desc_commit(buf, xlrec);
}
else if (info == XLOG_XACT_ABORT)
{
xl_xact_abort *xlrec = (xl_xact_abort *) rec;
xact_desc_abort(buf, xlrec);
}
else if (info == XLOG_XACT_COMMIT_PREPARED)
{
xl_xact_commit_prepared *xlrec = (xl_xact_commit_prepared *) rec;
appendStringInfo(buf, "%u: ", xlrec->xid);
xact_desc_commit(buf, &xlrec->crec);
}
else if (info == XLOG_XACT_ABORT_PREPARED)
{
xl_xact_abort_prepared *xlrec = (xl_xact_abort_prepared *) rec;
appendStringInfo(buf, "%u: ", xlrec->xid);
xact_desc_abort(buf, &xlrec->arec);
}
else if (info == XLOG_XACT_ASSIGNMENT)
{
xl_xact_assignment *xlrec = (xl_xact_assignment *) rec;
/*
* Note that we ignore the WAL record's xid, since we're more
* interested in the top-level xid that issued the record and which
* xids are being reported here.
*/
appendStringInfo(buf, "xtop %u: ", xlrec->xtop);
xact_desc_assignment(buf, xlrec);
}
}
const char *
xact_identify(uint8 info)
{
const char *id = NULL;
switch (info & ~XLR_INFO_MASK)
{
case XLOG_XACT_COMMIT:
id = "COMMIT";
break;
case XLOG_XACT_PREPARE:
id = "PREPARE";
break;
case XLOG_XACT_ABORT:
id = "ABORT";
break;
case XLOG_XACT_COMMIT_PREPARED:
id = "COMMIT_PREPARED";
break;
case XLOG_XACT_ABORT_PREPARED:
id = "ABORT_PREPARED";
break;
case XLOG_XACT_ASSIGNMENT:
id = "ASSIGNMENT";
break;
case XLOG_XACT_COMMIT_COMPACT:
id = "COMMIT_COMPACT";
break;
}
return id;
}
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