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redo/undo support functions and cleanups.

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This commit is contained in:
Vadim B. Mikheev
2000-10-20 11:01:21 +00:00
parent e18a862d46
commit b58c0411ba
15 changed files with 726 additions and 167 deletions
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34
src/include/access/xact.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: xact.h,v 1.27 2000/07/28 01:04:40 tgl Exp $
* $Id: xact.h,v 1.28 2000/10/20 11:01:14 vadim Exp $
*
*-------------------------------------------------------------------------
*/
@@ -78,6 +78,35 @@ typedef TransactionStateData *TransactionState;
(*((TransactionId*) (dest)) = NullTransactionId)
#ifdef XLOG
/*
* XLOG allows to store some information in high 4 bits of log
* record xl_info field
*/
#define XLOG_XACT_COMMIT 0x00
#define XLOG_XACT_ABORT 0x20
typedef struct xl_xact_commit
{
time_t xtime;
/*
* Array of RelFileNode-s to drop may follow
* at the end of struct
*/
} xl_xact_commit;
#define SizeOfXactCommit ((offsetof(xl_xact_commit, xtime) + sizeof(time_t)))
typedef struct xl_xact_abort
{
time_t xtime;
} xl_xact_abort;
#define SizeOfXactAbort ((offsetof(xl_xact_abort, xtime) + sizeof(time_t)))
#endif
/* ----------------
* extern definitions
* ----------------
@@ -108,6 +137,9 @@ extern void AbortOutOfAnyTransaction(void);
extern TransactionId DisabledTransactionId;
extern void XactPushRollback(void (*func) (void *), void* data);
extern void XactPopRollback(void);
/* defined in xid.c */
extern Datum xidin(PG_FUNCTION_ARGS);
extern Datum xidout(PG_FUNCTION_ARGS);