diff options
Diffstat (limited to 'src/include/access/xact.h')
| -rw-r--r-- | src/include/access/xact.h | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/src/include/access/xact.h b/src/include/access/xact.h index 7c949899ac4..0c6b5580688 100644 --- a/src/include/access/xact.h +++ b/src/include/access/xact.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/xact.h,v 1.76 2005/06/06 17:01:24 tgl Exp $ + * $PostgreSQL: pgsql/src/include/access/xact.h,v 1.77 2005/06/17 22:32:48 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -47,7 +47,8 @@ extern bool XactReadOnly; typedef enum { XACT_EVENT_COMMIT, - XACT_EVENT_ABORT + XACT_EVENT_ABORT, + XACT_EVENT_PREPARE } XactEvent; typedef void (*XactCallback) (XactEvent event, void *arg); @@ -72,8 +73,11 @@ typedef void (*SubXactCallback) (SubXactEvent event, SubTransactionId mySubid, * 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 +#define XLOG_XACT_COMMIT 0x00 +#define XLOG_XACT_PREPARE 0x10 +#define XLOG_XACT_ABORT 0x20 +#define XLOG_XACT_COMMIT_PREPARED 0x30 +#define XLOG_XACT_ABORT_PREPARED 0x40 typedef struct xl_xact_commit { @@ -99,6 +103,31 @@ typedef struct xl_xact_abort #define MinSizeOfXactAbort offsetof(xl_xact_abort, xnodes) +/* + * COMMIT_PREPARED and ABORT_PREPARED are identical to COMMIT/ABORT records + * except that we have to store the XID of the prepared transaction explicitly + * --- the XID in the record header will be for the transaction doing the + * COMMIT PREPARED or ABORT PREPARED command. + */ + +typedef struct xl_xact_commit_prepared +{ + TransactionId xid; /* XID of prepared xact */ + xl_xact_commit crec; /* COMMIT record */ + /* MORE DATA FOLLOWS AT END OF STRUCT */ +} xl_xact_commit_prepared; + +#define MinSizeOfXactCommitPrepared offsetof(xl_xact_commit_prepared, crec.xnodes) + +typedef struct xl_xact_abort_prepared +{ + TransactionId xid; /* XID of prepared xact */ + xl_xact_abort arec; /* ABORT record */ + /* MORE DATA FOLLOWS AT END OF STRUCT */ +} xl_xact_abort_prepared; + +#define MinSizeOfXactAbortPrepared offsetof(xl_xact_abort_prepared, arec.xnodes) + /* ---------------- * extern definitions @@ -121,6 +150,7 @@ extern void CommitTransactionCommand(void); extern void AbortCurrentTransaction(void); extern void BeginTransactionBlock(void); extern bool EndTransactionBlock(void); +extern bool PrepareTransactionBlock(char *gid); extern void UserAbortTransactionBlock(void); extern void ReleaseSavepoint(List *options); extern void DefineSavepoint(char *name); |