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Try to avoid a compiler warning about using fxid uninitialized.

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Mark Dilger, with a couple of stray semicolons removed by me.

Discussion: http://postgr.es/m/2A7DA1A8-C4AA-43DF-A985-3CA52F4DC775@enterprisedb.com
This commit is contained in:
Robert Haas 2020-10-22 16:13:58 -04:00
parent 94929f1cf6
commit 8bb0c9770e
1 changed files with 32 additions and 37 deletions
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69
contrib/amcheck/verify_heapam.c
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@ -555,7 +555,7 @@ check_tuple_header_and_visibilty(HeapTupleHeader tuphdr, HeapCheckContext *ctx)
{
uint16 infomask = tuphdr->t_infomask;
bool header_garbled = false;
unsigned expected_hoff;;
unsigned expected_hoff;
if (ctx->tuphdr->t_hoff > ctx->lp_len)
{
@ -1368,60 +1368,55 @@ check_mxid_valid_in_rel(MultiXactId mxid, HeapCheckContext *ctx)
* truly been valid at that time.
*
* If the status argument is not NULL, and if and only if the transaction ID
* appears to be valid in this relation, clog will be consulted and the commit
* status argument will be set with the status of the transaction ID.
* appears to be valid in this relation, the status argument will be set with
* the commit status of the transaction ID.
*/
static XidBoundsViolation
get_xid_status(TransactionId xid, HeapCheckContext *ctx,
XidCommitStatus *status)
{
XidBoundsViolation result;
FullTransactionId fxid;
FullTransactionId clog_horizon;
/* Quick check for special xids */
if (!TransactionIdIsValid(xid))
result = XID_INVALID;
return XID_INVALID;
else if (xid == BootstrapTransactionId || xid == FrozenTransactionId)
result = XID_BOUNDS_OK;
else
{
/* Check if the xid is within bounds */
fxid = FullTransactionIdFromXidAndCtx(xid, ctx);
if (!fxid_in_cached_range(fxid, ctx))
{
/*
* We may have been checking against stale values. Update the
* cached range to be sure, and since we relied on the cached
* range when we performed the full xid conversion, reconvert.
*/
update_cached_xid_range(ctx);
fxid = FullTransactionIdFromXidAndCtx(xid, ctx);
}
if (FullTransactionIdPrecedesOrEquals(ctx->next_fxid, fxid))
result = XID_IN_FUTURE;
else if (FullTransactionIdPrecedes(fxid, ctx->oldest_fxid))
result = XID_PRECEDES_CLUSTERMIN;
else if (FullTransactionIdPrecedes(fxid, ctx->relfrozenfxid))
result = XID_PRECEDES_RELMIN;
else
result = XID_BOUNDS_OK;
if (status != NULL)
*status = XID_COMMITTED;
return XID_BOUNDS_OK;
}
/*
* Early return if the caller does not request clog checking, or if the
* xid is already known to be out of bounds. We dare not check clog for
* out of bounds transaction IDs.
*/
if (status == NULL || result != XID_BOUNDS_OK)
return result;
/* Check if the xid is within bounds */
fxid = FullTransactionIdFromXidAndCtx(xid, ctx);
if (!fxid_in_cached_range(fxid, ctx))
{
/*
* We may have been checking against stale values. Update the
* cached range to be sure, and since we relied on the cached
* range when we performed the full xid conversion, reconvert.
*/
update_cached_xid_range(ctx);
fxid = FullTransactionIdFromXidAndCtx(xid, ctx);
}
if (FullTransactionIdPrecedesOrEquals(ctx->next_fxid, fxid))
return XID_IN_FUTURE;
if (FullTransactionIdPrecedes(fxid, ctx->oldest_fxid))
return XID_PRECEDES_CLUSTERMIN;
if (FullTransactionIdPrecedes(fxid, ctx->relfrozenfxid))
return XID_PRECEDES_RELMIN;
/* Early return if the caller does not request clog checking */
if (status == NULL)
return XID_BOUNDS_OK;
/* Early return if we just checked this xid in a prior call */
if (xid == ctx->cached_xid)
{
*status = ctx->cached_status;
return result;
return XID_BOUNDS_OK;
}
*status = XID_COMMITTED;
@ -1443,5 +1438,5 @@ get_xid_status(TransactionId xid, HeapCheckContext *ctx,
LWLockRelease(XactTruncationLock);
ctx->cached_xid = xid;
ctx->cached_status = *status;
return result;
return XID_BOUNDS_OK;
}