44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
/*-------------------------------------------------------------------------
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*
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* waitlsn.h
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* Declarations for LSN waiting routines.
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*
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* Copyright (c) 2024, PostgreSQL Global Development Group
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*
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* src/include/commands/waitlsn.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef WAIT_LSN_H
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#define WAIT_LSN_H
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#include "postgres.h"
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#include "port/atomics.h"
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#include "storage/spin.h"
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#include "tcop/dest.h"
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/* Shared memory structures */
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typedef struct WaitLSNProcInfo
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{
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int procnum;
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XLogRecPtr waitLSN;
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} WaitLSNProcInfo;
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typedef struct WaitLSNState
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{
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pg_atomic_uint64 minLSN;
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slock_t mutex;
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int numWaitedProcs;
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WaitLSNProcInfo procInfos[FLEXIBLE_ARRAY_MEMBER];
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} WaitLSNState;
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extern PGDLLIMPORT struct WaitLSNState *waitLSN;
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extern void WaitForLSN(XLogRecPtr targetLSN, int64 timeout);
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extern Size WaitLSNShmemSize(void);
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extern void WaitLSNShmemInit(void);
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extern void WaitLSNSetLatches(XLogRecPtr currentLSN);
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extern void WaitLSNCleanup(void);
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#endif /* WAIT_LSN_H */
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