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Code

Refactor headers to split out standby defs

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Jeff Janes
This commit is contained in:
Simon Riggs 2016-01-20 18:51:34 -08:00
parent 978b2f65aa
commit c80b31d557
4 changed files with 56 additions and 37 deletions
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2
src/backend/access/rmgrdesc/standbydesc.c
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@ -14,7 +14,7 @@
*/
#include "postgres.h"
#include "storage/standby.h"
#include "storage/standbydefs.h"
static void
standby_desc_running_xacts(StringInfo buf, xl_running_xacts *xlrec)

2
src/bin/pg_xlogdump/rmgrdesc.c
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@ -27,7 +27,7 @@
#include "commands/tablespace.h"
#include "replication/origin.h"
#include "rmgrdesc.h"
#include "storage/standby.h"
#include "storage/standbydefs.h"
#include "utils/relmapper.h"
#define PG_RMGR(symname,name,redo,desc,identify,startup,cleanup) \

36
src/include/storage/standby.h
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@ -14,9 +14,7 @@
#ifndef STANDBY_H
#define STANDBY_H
#include "access/xlogreader.h"
#include "lib/stringinfo.h"
#include "storage/lockdefs.h"
#include "storage/standbydefs.h"
#include "storage/procsignal.h"
#include "storage/relfilenode.h"
@ -51,41 +49,9 @@ extern void StandbyReleaseLockTree(TransactionId xid,
extern void StandbyReleaseAllLocks(void);
extern void StandbyReleaseOldLocks(int nxids, TransactionId *xids);
/*
* XLOG message types
*/
#define XLOG_STANDBY_LOCK 0x00
#define XLOG_RUNNING_XACTS 0x10
typedef struct xl_standby_locks
{
int nlocks; /* number of entries in locks array */
xl_standby_lock locks[FLEXIBLE_ARRAY_MEMBER];
} xl_standby_locks;
/*
* When we write running xact data to WAL, we use this structure.
*/
typedef struct xl_running_xacts
{
int xcnt; /* # of xact ids in xids[] */
int subxcnt; /* # of subxact ids in xids[] */
bool subxid_overflow; /* snapshot overflowed, subxids missing */
TransactionId nextXid; /* copy of ShmemVariableCache->nextXid */
TransactionId oldestRunningXid; /* *not* oldestXmin */
TransactionId latestCompletedXid; /* so we can set xmax */
TransactionId xids[FLEXIBLE_ARRAY_MEMBER];
} xl_running_xacts;
#define MinSizeOfXactRunningXacts offsetof(xl_running_xacts, xids)
/* Recovery handlers for the Standby Rmgr (RM_STANDBY_ID) */
extern void standby_redo(XLogReaderState *record);
extern void standby_desc(StringInfo buf, XLogReaderState *record);
extern const char *standby_identify(uint8 info);
/*
* Declarations for GetRunningTransactionData(). Similar to Snapshots, but
* not quite. This has nothing at all to do with visibility on this server,

53
src/include/storage/standbydefs.h Normal file
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@ -0,0 +1,53 @@
/*-------------------------------------------------------------------------
*
* standbydef.h
* Frontend exposed definitions for hot standby mode.
*
*
* Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/storage/standbydefs.h
*
*-------------------------------------------------------------------------
*/
#ifndef STANDBYDEFS_H
#define STANDBYDEFS_H
#include "access/xlogreader.h"
#include "lib/stringinfo.h"
#include "storage/lockdefs.h"
/* Recovery handlers for the Standby Rmgr (RM_STANDBY_ID) */
extern void standby_redo(XLogReaderState *record);
extern void standby_desc(StringInfo buf, XLogReaderState *record);
extern const char *standby_identify(uint8 info);
/*
* XLOG message types
*/
#define XLOG_STANDBY_LOCK 0x00
#define XLOG_RUNNING_XACTS 0x10
typedef struct xl_standby_locks
{
int nlocks; /* number of entries in locks array */
xl_standby_lock locks[FLEXIBLE_ARRAY_MEMBER];
} xl_standby_locks;
/*
* When we write running xact data to WAL, we use this structure.
*/
typedef struct xl_running_xacts
{
int xcnt; /* # of xact ids in xids[] */
int subxcnt; /* # of subxact ids in xids[] */
bool subxid_overflow; /* snapshot overflowed, subxids missing */
TransactionId nextXid; /* copy of ShmemVariableCache->nextXid */
TransactionId oldestRunningXid; /* *not* oldestXmin */
TransactionId latestCompletedXid; /* so we can set xmax */
TransactionId xids[FLEXIBLE_ARRAY_MEMBER];
} xl_running_xacts;
#endif /* STANDBYDEFS_H */