WAL

src/include/access/transam.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: transam.h,v 1.24 2000/01/26 05:57:51 momjian Exp $
+ * $Id: transam.h,v 1.25 2000/10/28 16:20:59 vadim Exp $
  *
  *	 NOTES
  *		Transaction System Version 101 now support proper oid
@@ -67,7 +67,11 @@ typedef unsigned char XidStatus;/* (2 bits) */
  *		transaction page definitions
  * ----------------
  */
+#ifdef XLOG
+#define TP_DataSize				(BLCKSZ - sizeof(XLogRecPtr))
+#else
 #define TP_DataSize				BLCKSZ
+#endif
 #define TP_NumXidStatusPerBlock (TP_DataSize * 4)
 
 /* ----------------
@@ -84,6 +88,10 @@ typedef unsigned char XidStatus;/* (2 bits) */
  */
 typedef struct LogRelationContentsData
 {
+#ifdef XLOG
+	XLogRecPtr	LSN;		/* temp hack: LSN is member of any block */
+							/* so should be described in bufmgr */
+#endif
 	int			TransSystemVersion;
 } LogRelationContentsData;
 
@@ -107,6 +115,9 @@ typedef LogRelationContentsData *LogRelationContents;
  */
 typedef struct VariableRelationContentsData
 {
+#ifdef XLOG
+	XLogRecPtr	LSN;
+#endif
 	int			TransSystemVersion;
 	TransactionId nextXidData;
 	TransactionId lastXidData;	/* unused */

src/include/access/xact.h

@@ -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 1.28 2000/10/20 11:01:14 vadim Exp $
+ * $Id: xact.h,v 1.29 2000/10/28 16:20:59 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -135,6 +135,8 @@ extern bool IsTransactionBlock(void);
 extern void UserAbortTransactionBlock(void);
 extern void AbortOutOfAnyTransaction(void);
 
+extern void RecordTransactionCommit(void);
+
 extern TransactionId DisabledTransactionId;
 
 extern void XactPushRollback(void (*func) (void *), void* data);

src/include/access/xlog.h

@@ -10,12 +10,7 @@
 
 #include "access/rmgr.h"
 #include "access/transam.h"
-
-typedef struct XLogRecPtr
-{
-	uint32		xlogid;			/* log file #, 0 based */
-	uint32		xrecoff;		/* offset of record in log file */
-} XLogRecPtr;
+#include "access/xlogdefs.h"
 
 typedef struct XLogRecord
 {
@@ -83,12 +78,7 @@ typedef XLogPageHeaderData *XLogPageHeader;
 #define XLByteEQ(left, right)		\
 			(right.xlogid == left.xlogid && right.xrecoff ==  left.xrecoff)
 
-/*
- * StartUpID (SUI) - system startups counter.
- * It's to allow removing pg_log after shutdown.
- */
-typedef	uint32		StartUpID;
-extern	StartUpID	ThisStartUpID;
+extern	StartUpID	ThisStartUpID;	/* current SUI */
 extern	bool		InRecovery;
 extern	XLogRecPtr	MyLastRecPtr;
 

src/include/access/xlogdefs.h

@@ -0,0 +1,24 @@
+/*
+ *
+ * xlogdefs.h
+ *
+ * Postgres transaction log manager record pointer and
+ * system stratup number definitions
+ *
+ */
+#ifndef XLOG_DEFS_H
+#define XLOG_DEFS_H
+
+typedef struct XLogRecPtr
+{
+	uint32		xlogid;			/* log file #, 0 based */
+	uint32		xrecoff;		/* offset of record in log file */
+} XLogRecPtr;
+
+/*
+ * StartUpID (SUI) - system startups counter. It's to allow removing
+ * pg_log after shutdown, in future.
+ */
+typedef	uint32		StartUpID;
+
+#endif	 /* XLOG_DEFS_H */

src/include/access/xlogutils.h

@@ -9,8 +9,10 @@ extern bool XLogIsValidTuple(RelFileNode hnode, ItemPointer iptr);
 
 extern void XLogOpenLogRelation(void);
 
-extern Buffer XLogReadBuffer(bool extend, Relation reln, BlockNumber blkno);
+extern void XLogInitRelationCache(void);
 extern void XLogCloseRelationCache(void);
+
 extern Relation XLogOpenRelation(bool redo, RmgrId rmid, RelFileNode rnode);
+extern Buffer XLogReadBuffer(bool extend, Relation reln, BlockNumber blkno);
 
 #endif