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/*-------------------------------------------------------------------------
*
* bgwriter.h
* Exports from postmaster/bgwriter.c.
*
* Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
*
* src/include/postmaster/bgwriter.h
*
*-------------------------------------------------------------------------
*/
#ifndef _BGWRITER_H
#define _BGWRITER_H
#include "storage/block.h"
#include "storage/relfilenode.h"
/* GUC options */
extern int BgWriterDelay;
extern int CheckPointTimeout;
extern int CheckPointWarning;
extern double CheckPointCompletionTarget;
extern void BackgroundWriterMain(void);
extern void RequestCheckpoint(int flags);
extern void CheckpointWriteDelay(int flags, double progress);
extern bool ForwardFsyncRequest(RelFileNodeBackend rnode, ForkNumber forknum,
BlockNumber segno);
extern void AbsorbFsyncRequests(void);
extern Size BgWriterShmemSize(void);
extern void BgWriterShmemInit(void);
#endif /* _BGWRITER_H */
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