/usr/include/postgres-xc/server/access/clog.h is in postgres-xc-server-dev 1.1-2ubuntu2.
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* clog.h
*
* PostgreSQL transaction-commit-log manager
*
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/access/clog.h
*/
#ifndef CLOG_H
#define CLOG_H
#include "access/xlog.h"
/*
* Possible transaction statuses --- note that all-zeroes is the initial
* state.
*
* A "subcommitted" transaction is a committed subtransaction whose parent
* hasn't committed or aborted yet.
*/
typedef int XidStatus;
#define TRANSACTION_STATUS_IN_PROGRESS 0x00
#define TRANSACTION_STATUS_COMMITTED 0x01
#define TRANSACTION_STATUS_ABORTED 0x02
#define TRANSACTION_STATUS_SUB_COMMITTED 0x03
extern void TransactionIdSetTreeStatus(TransactionId xid, int nsubxids,
TransactionId *subxids, XidStatus status, XLogRecPtr lsn);
extern XidStatus TransactionIdGetStatus(TransactionId xid, XLogRecPtr *lsn);
extern Size CLOGShmemBuffers(void);
extern Size CLOGShmemSize(void);
extern void CLOGShmemInit(void);
extern void BootStrapCLOG(void);
extern void StartupCLOG(void);
extern void TrimCLOG(void);
extern void ShutdownCLOG(void);
extern void CheckPointCLOG(void);
extern void ExtendCLOG(TransactionId newestXact);
extern void TruncateCLOG(TransactionId oldestXact);
/* XLOG stuff */
#define CLOG_ZEROPAGE 0x00
#define CLOG_TRUNCATE 0x10
extern void clog_redo(XLogRecPtr lsn, XLogRecord *record);
extern void clog_desc(StringInfo buf, uint8 xl_info, char *rec);
#endif /* CLOG_H */
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