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- /*-------------------------------------------------------------------------
- *
- * bgwriter.h
- * Exports from postmaster/bgwriter.c and postmaster/checkpointer.c.
- *
- * The bgwriter process used to handle checkpointing duties too. Now
- * there is a separate process, but we did not bother to split this header.
- *
- * Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
- *
- * src/include/postmaster/bgwriter.h
- *
- *-------------------------------------------------------------------------
- */
- #ifndef _BGWRITER_H
- #define _BGWRITER_H
-
- #include "storage/block.h"
- #include "storage/relfilenode.h"
- #include "storage/smgr.h"
- #include "storage/sync.h"
-
-
- /* GUC options */
- extern int BgWriterDelay;
- extern int CheckPointTimeout;
- extern int CheckPointWarning;
- extern double CheckPointCompletionTarget;
-
- extern void BackgroundWriterMain(void) pg_attribute_noreturn();
- extern void CheckpointerMain(void) pg_attribute_noreturn();
-
- extern void RequestCheckpoint(int flags);
- extern void CheckpointWriteDelay(int flags, double progress);
-
- extern bool ForwardSyncRequest(const FileTag *ftag, SyncRequestType type);
-
- extern void AbsorbSyncRequests(void);
-
- extern Size CheckpointerShmemSize(void);
- extern void CheckpointerShmemInit(void);
-
- extern bool FirstCallSinceLastCheckpoint(void);
-
- #endif /* _BGWRITER_H */
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