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postgresql11
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usr
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include
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pgsql
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server
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postmaster
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Filename :
autovacuum.h
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/*------------------------------------------------------------------------- * * autovacuum.h * header file for integrated autovacuum daemon * * * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/postmaster/autovacuum.h * *------------------------------------------------------------------------- */ #ifndef AUTOVACUUM_H #define AUTOVACUUM_H /* GUC variables */ extern bool autovacuum_start_daemon; extern int autovacuum_max_workers; extern int autovacuum_naptime; extern int autovacuum_vac_thresh; extern double autovacuum_vac_scale; extern int autovacuum_anl_thresh; extern double autovacuum_anl_scale; extern int autovacuum_freeze_max_age; extern int autovacuum_vac_cost_delay; extern int autovacuum_vac_cost_limit; /* autovacuum launcher PID, only valid when worker is shutting down */ extern int AutovacuumLauncherPid; extern int Log_autovacuum_min_duration; /* Status inquiry functions */ extern bool AutoVacuumingActive(void); extern bool IsAutoVacuumLauncherProcess(void); extern bool IsAutoVacuumWorkerProcess(void); #define IsAnyAutoVacuumProcess() \ (IsAutoVacuumLauncherProcess() || IsAutoVacuumWorkerProcess()) /* Functions to start autovacuum process, called from postmaster */ extern void autovac_init(void); extern int StartAutoVacLauncher(void); extern int StartAutoVacWorker(void); /* called from postmaster when a worker could not be forked */ extern void AutoVacWorkerFailed(void); /* autovacuum cost-delay balancer */ extern void AutoVacuumUpdateDelay(void); #ifdef EXEC_BACKEND extern void AutoVacLauncherMain(int argc, char *argv[]); extern void AutoVacWorkerMain(int argc, char *argv[]); extern void AutovacuumWorkerIAm(void); extern void AutovacuumLauncherIAm(void); #endif /* shared memory stuff */ extern Size AutoVacuumShmemSize(void); extern void AutoVacuumShmemInit(void); #endif /* AUTOVACUUM_H */