PostgreSQL Source Code git master
bgwriter.h
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1/*-------------------------------------------------------------------------
2 *
3 * bgwriter.h
4 * Exports from postmaster/bgwriter.c and postmaster/checkpointer.c.
5 *
6 * The bgwriter process used to handle checkpointing duties too. Now
7 * there is a separate process, but we did not bother to split this header.
8 *
9 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
10 *
11 * src/include/postmaster/bgwriter.h
12 *
13 *-------------------------------------------------------------------------
14 */
15#ifndef _BGWRITER_H
16#define _BGWRITER_H
17
18#include "storage/block.h"
20#include "storage/smgr.h"
21#include "storage/sync.h"
22
23
24/* GUC options */
25extern PGDLLIMPORT int BgWriterDelay;
29
30extern void BackgroundWriterMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn();
31extern void CheckpointerMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn();
32
33extern void RequestCheckpoint(int flags);
34extern void CheckpointWriteDelay(int flags, double progress);
35
36extern bool ForwardSyncRequest(const FileTag *ftag, SyncRequestType type);
37
38extern void AbsorbSyncRequests(void);
39
40extern Size CheckpointerShmemSize(void);
41extern void CheckpointerShmemInit(void);
42
43extern bool FirstCallSinceLastCheckpoint(void);
44
45#endif /* _BGWRITER_H */
PGDLLIMPORT int BgWriterDelay
Definition: bgwriter.c:57
bool ForwardSyncRequest(const FileTag *ftag, SyncRequestType type)
void BackgroundWriterMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn()
Definition: bgwriter.c:87
void AbsorbSyncRequests(void)
PGDLLIMPORT int CheckPointTimeout
Definition: checkpointer.c:140
void CheckpointerShmemInit(void)
Definition: checkpointer.c:952
PGDLLIMPORT int CheckPointWarning
Definition: checkpointer.c:141
bool FirstCallSinceLastCheckpoint(void)
PGDLLIMPORT double CheckPointCompletionTarget
Definition: checkpointer.c:142
void CheckpointerMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn()
Definition: checkpointer.c:178
void RequestCheckpoint(int flags)
Definition: checkpointer.c:995
void CheckpointWriteDelay(int flags, double progress)
Definition: checkpointer.c:767
Size CheckpointerShmemSize(void)
Definition: checkpointer.c:933
#define PGDLLIMPORT
Definition: c.h:1277
#define pg_attribute_noreturn()
Definition: c.h:239
size_t Size
Definition: c.h:562
static int progress
Definition: pgbench.c:262
Definition: sync.h:51
SyncRequestType
Definition: sync.h:24
const char * type