database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-17 17:02:08 +03:00
Code Activity

Initial MVCC code.

Browse Source 
New code for locking buffer' context.
This commit is contained in:
Vadim B. Mikheev
1998-12-15 12:47:01 +00:00
parent c5a27161a1
commit 3f7fbf85dc
65 changed files with 1391 additions and 1282 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/backend/access/transam/transam.c
View File

@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/transam/transam.c,v 1.19 1998/09/01 04:27:15 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/transam/transam.c,v 1.20 1998/12/15 12:45:30 vadim Exp $
*
* NOTES
* This file contains the high level access-method interface to the
@ -172,8 +172,12 @@ TransactionLogTest(TransactionId transactionId, /* transaction id to test */
if (!fail)
{
TransactionIdStore(transactionId, &cachedTestXid);
cachedTestXidStatus = xidstatus;
/* must not cache status of running xaction !!! */
if (xidstatus != XID_INPROGRESS)
{
TransactionIdStore(transactionId, &cachedTestXid);
cachedTestXidStatus = xidstatus;
}
return (bool)
(status == xidstatus);
}
@ -219,11 +223,14 @@ TransactionLogUpdate(TransactionId transactionId, /* trans id to update */
status,
&fail);
/* ----------------
* update (invalidate) our single item TransactionLogTest cache.
* ----------------
*/
/*
* update (invalidate) our single item TransactionLogTest cache.
*
if (status != XID_COMMIT)
*
* What's the hell ?! Why != XID_COMMIT ?!
*/
if (status != XID_INPROGRESS)
{
TransactionIdStore(transactionId, &cachedTestXid);
cachedTestXidStatus = status;