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Remove NEXTXID xlog record type to avoid three-way deadlock risk.

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NEXTXID isn't really necessary, per previous discussion in pghackers,
but I mulishy insisted we should put it in anyway.  Mea culpa.
This commit is contained in:
Tom Lane
2001-03-18 20:18:59 +00:00
parent ddc5bc958a
commit af6e88a9cf
7 changed files with 12 additions and 67 deletions
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10
src/backend/access/transam/varsup.c
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@@ -6,7 +6,7 @@
* Copyright (c) 2000, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/transam/varsup.c,v 1.36 2001/03/13 01:17:05 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/access/transam/varsup.c,v 1.37 2001/03/18 20:18:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -44,17 +44,9 @@ GetNewTransactionId(TransactionId *xid)
SpinAcquire(XidGenLockId);
/* If we run out of logged for use xids then we must log more */
if (ShmemVariableCache->xidCount == 0)
{
XLogPutNextXid(ShmemVariableCache->nextXid + VAR_XID_PREFETCH);
ShmemVariableCache->xidCount = VAR_XID_PREFETCH;
}
*xid = ShmemVariableCache->nextXid;
(ShmemVariableCache->nextXid)++;
(ShmemVariableCache->xidCount)--;
SpinRelease(XidGenLockId);