| Server IP : 35.80.110.71 / Your IP : 216.73.216.221 Web Server : Apache/2.4.58 (Ubuntu) System : Linux ip-172-31-21-44 6.17.0-1019-aws #19~24.04.1-Ubuntu SMP Tue Jun 23 18:53:06 UTC 2026 x86_64 User : ubuntu ( 1000) PHP Version : 8.3.31 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : OFF Directory : /usr/include/postgresql/16/server/access/ |
Upload File : |
/*-------------------------------------------------------------------------
*
* xlogprefetcher.h
* Declarations for the recovery prefetching module.
*
* Portions Copyright (c) 2022-2023, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* src/include/access/xlogprefetcher.h
*-------------------------------------------------------------------------
*/
#ifndef XLOGPREFETCHER_H
#define XLOGPREFETCHER_H
#include "access/xlogdefs.h"
#include "access/xlogreader.h"
#include "access/xlogrecord.h"
/* GUCs */
extern PGDLLIMPORT int recovery_prefetch;
/* Possible values for recovery_prefetch */
typedef enum
{
RECOVERY_PREFETCH_OFF,
RECOVERY_PREFETCH_ON,
RECOVERY_PREFETCH_TRY
} RecoveryPrefetchValue;
struct XLogPrefetcher;
typedef struct XLogPrefetcher XLogPrefetcher;
extern void XLogPrefetchReconfigure(void);
extern size_t XLogPrefetchShmemSize(void);
extern void XLogPrefetchShmemInit(void);
extern void XLogPrefetchResetStats(void);
extern XLogPrefetcher *XLogPrefetcherAllocate(XLogReaderState *reader);
extern void XLogPrefetcherFree(XLogPrefetcher *prefetcher);
extern XLogReaderState *XLogPrefetcherGetReader(XLogPrefetcher *prefetcher);
extern void XLogPrefetcherBeginRead(XLogPrefetcher *prefetcher,
XLogRecPtr recPtr);
extern XLogRecord *XLogPrefetcherReadRecord(XLogPrefetcher *prefetcher,
char **errmsg);
extern void XLogPrefetcherComputeStats(XLogPrefetcher *prefetcher);
#endif