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Add transaction status field to ReadyForQuery messages, and make room

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for tableID/columnID in RowDescription.  (The latter isn't really
implemented yet though --- the backend always sends zeroes, and libpq
just throws away the data.)
This commit is contained in:
Tom Lane
2003-04-26 20:23:00 +00:00
parent 2b1e36c7c0
commit 4db9689d1a
8 changed files with 118 additions and 41 deletions
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55
src/include/access/xact.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: xact.h,v 1.49 2003/01/10 22:03:30 petere Exp $
* $Id: xact.h,v 1.50 2003/04/26 20:22:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -29,9 +29,35 @@
extern int DefaultXactIsoLevel;
extern int XactIsoLevel;
/* Xact read-only state */
extern bool DefaultXactReadOnly;
extern bool XactReadOnly;
/*
* transaction states - transaction state from server perspective
*/
typedef enum TransState
{
TRANS_DEFAULT,
TRANS_START,
TRANS_INPROGRESS,
TRANS_COMMIT,
TRANS_ABORT
} TransState;
/*
* transaction block states - transaction state of client queries
*/
typedef enum TBlockState
{
TBLOCK_DEFAULT,
TBLOCK_BEGIN,
TBLOCK_INPROGRESS,
TBLOCK_END,
TBLOCK_ABORT,
TBLOCK_ENDABORT
} TBlockState;
/* ----------------
* transaction state structure
@ -43,33 +69,17 @@ typedef struct TransactionStateData
CommandId commandId;
AbsoluteTime startTime;
int startTimeUsec;
int state;
int blockState;
TransState state;
TBlockState blockState;
} TransactionStateData;
typedef TransactionStateData *TransactionState;
/*
* transaction states - transaction state from server perspective
*
* Syntax error could cause transaction to abort, but client code thinks
* it is still in a transaction, so we have to wait for COMMIT/ROLLBACK.
*/
#define TRANS_DEFAULT 0
#define TRANS_START 1
#define TRANS_INPROGRESS 2
#define TRANS_COMMIT 3
#define TRANS_ABORT 4
/*
* transaction block states - transaction state of client queries
/* ----------------
* transaction-related XLOG entries
* ----------------
*/
#define TBLOCK_DEFAULT 0
#define TBLOCK_BEGIN 1
#define TBLOCK_INPROGRESS 2
#define TBLOCK_END 3
#define TBLOCK_ABORT 4
#define TBLOCK_ENDABORT 5
/*
* XLOG allows to store some information in high 4 bits of log
@ -115,6 +125,7 @@ extern void AbortCurrentTransaction(void);
extern void BeginTransactionBlock(void);
extern void EndTransactionBlock(void);
extern bool IsTransactionBlock(void);
extern char TransactionBlockStatusCode(void);
extern void UserAbortTransactionBlock(void);
extern void AbortOutOfAnyTransaction(void);
extern void PreventTransactionChain(void *stmtNode, const char *stmtType);