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/*------------------------------------------------------------------------- * * walsummarizer.h * * Header file for background WAL summarization process. * * Portions Copyright (c) 1996-2024, PostgreSQL Global Development Group * * IDENTIFICATION * src/include/postmaster/walsummarizer.h * *------------------------------------------------------------------------- */ #ifndef WALSUMMARIZER_H #define WALSUMMARIZER_H #include "access/xlogdefs.h" extern PGDLLIMPORT bool summarize_wal; extern PGDLLIMPORT int wal_summary_keep_time; extern Size WalSummarizerShmemSize(void); extern void WalSummarizerShmemInit(void); extern void WalSummarizerMain(char *startup_data, size_t startup_data_len) pg_attribute_noreturn(); extern void GetWalSummarizerState(TimeLineID *summarized_tli, XLogRecPtr *summarized_lsn, XLogRecPtr *pending_lsn, int *summarizer_pid); extern XLogRecPtr GetOldestUnsummarizedLSN(TimeLineID *tli, bool *lsn_is_exact); extern void SetWalSummarizerLatch(void); extern void WaitForWalSummarization(XLogRecPtr lsn); #endif