1 /*-------------------------------------------------------------------------
4 * header file for integrated autovacuum daemon
7 * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
10 * $PostgreSQL: pgsql/src/include/postmaster/autovacuum.h,v 1.11 2007/06/25 16:09:03 alvherre Exp $
12 *-------------------------------------------------------------------------
17 #include "storage/lock.h"
20 extern bool autovacuum_start_daemon;
21 extern int autovacuum_max_workers;
22 extern int autovacuum_naptime;
23 extern int autovacuum_vac_thresh;
24 extern double autovacuum_vac_scale;
25 extern int autovacuum_anl_thresh;
26 extern double autovacuum_anl_scale;
27 extern int autovacuum_freeze_max_age;
28 extern int autovacuum_vac_cost_delay;
29 extern int autovacuum_vac_cost_limit;
31 /* autovacuum launcher PID, only valid when worker is shutting down */
32 extern int AutovacuumLauncherPid;
34 extern int Log_autovacuum;
36 /* Status inquiry functions */
37 extern bool AutoVacuumingActive(void);
38 extern bool IsAutoVacuumLauncherProcess(void);
39 extern bool IsAutoVacuumWorkerProcess(void);
41 /* Functions to start autovacuum process, called from postmaster */
42 extern void autovac_init(void);
43 extern int StartAutoVacLauncher(void);
44 extern int StartAutoVacWorker(void);
45 /* called from postmaster when a worker could not be forked */
46 extern void AutoVacWorkerFailed(void);
48 /* autovacuum cost-delay balancer */
49 extern void AutoVacuumUpdateDelay(void);
52 extern void AutoVacLauncherMain(int argc, char *argv[]);
53 extern void AutoVacWorkerMain(int argc, char *argv[]);
54 extern void AutovacuumWorkerIAm(void);
55 extern void AutovacuumLauncherIAm(void);
58 /* shared memory stuff */
59 extern Size AutoVacuumShmemSize(void);
60 extern void AutoVacuumShmemInit(void);
62 #endif /* AUTOVACUUM_H */