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This commit is contained in:
blue-lemon0104
65
pg_include/postmaster/autovacuum.h
Executable file
65
pg_include/postmaster/autovacuum.h
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/*-------------------------------------------------------------------------
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*
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* autovacuum.h
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* header file for integrated autovacuum daemon
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*
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/postmaster/autovacuum.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef AUTOVACUUM_H
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#define AUTOVACUUM_H
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/* GUC variables */
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extern bool autovacuum_start_daemon;
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extern int autovacuum_max_workers;
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extern int autovacuum_naptime;
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extern int autovacuum_vac_thresh;
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extern double autovacuum_vac_scale;
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extern int autovacuum_anl_thresh;
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extern double autovacuum_anl_scale;
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extern int autovacuum_freeze_max_age;
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extern int autovacuum_vac_cost_delay;
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extern int autovacuum_vac_cost_limit;
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/* autovacuum launcher PID, only valid when worker is shutting down */
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extern int AutovacuumLauncherPid;
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extern int Log_autovacuum_min_duration;
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/* Status inquiry functions */
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extern bool AutoVacuumingActive(void);
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extern bool IsAutoVacuumLauncherProcess(void);
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extern bool IsAutoVacuumWorkerProcess(void);
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#define IsAnyAutoVacuumProcess() \
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(IsAutoVacuumLauncherProcess() || IsAutoVacuumWorkerProcess())
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/* Functions to start autovacuum process, called from postmaster */
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extern void autovac_init(void);
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extern int StartAutoVacLauncher(void);
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extern int StartAutoVacWorker(void);
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/* called from postmaster when a worker could not be forked */
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extern void AutoVacWorkerFailed(void);
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/* autovacuum cost-delay balancer */
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extern void AutoVacuumUpdateDelay(void);
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#ifdef EXEC_BACKEND
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extern void AutoVacLauncherMain(int argc, char *argv[]);
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extern void AutoVacWorkerMain(int argc, char *argv[]);
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extern void AutovacuumWorkerIAm(void);
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extern void AutovacuumLauncherIAm(void);
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#endif
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/* shared memory stuff */
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extern Size AutoVacuumShmemSize(void);
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extern void AutoVacuumShmemInit(void);
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#endif /* AUTOVACUUM_H */
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43
pg_include/postmaster/bgwriter.h
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43
pg_include/postmaster/bgwriter.h
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/*-------------------------------------------------------------------------
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*
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* bgwriter.h
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* Exports from postmaster/bgwriter.c and postmaster/checkpointer.c.
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*
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* The bgwriter process used to handle checkpointing duties too. Now
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* there is a separate process, but we did not bother to split this header.
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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*
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* src/include/postmaster/bgwriter.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _BGWRITER_H
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#define _BGWRITER_H
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#include "storage/block.h"
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#include "storage/relfilenode.h"
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/* GUC options */
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extern int BgWriterDelay;
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extern int CheckPointTimeout;
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extern int CheckPointWarning;
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extern double CheckPointCompletionTarget;
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extern void BackgroundWriterMain(void);
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extern void CheckpointerMain(void);
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extern void RequestCheckpoint(int flags);
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extern void CheckpointWriteDelay(int flags, double progress);
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extern bool ForwardFsyncRequest(RelFileNode rnode, ForkNumber forknum,
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BlockNumber segno);
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extern void AbsorbFsyncRequests(void);
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extern Size CheckpointerShmemSize(void);
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extern void CheckpointerShmemInit(void);
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extern bool FirstCallSinceLastCheckpoint(void);
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#endif /* _BGWRITER_H */
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17
pg_include/postmaster/fork_process.h
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17
pg_include/postmaster/fork_process.h
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/*-------------------------------------------------------------------------
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*
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* fork_process.h
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* Exports from postmaster/fork_process.c.
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*
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* Copyright (c) 1996-2012, PostgreSQL Global Development Group
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*
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* src/include/postmaster/fork_process.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef FORK_PROCESS_H
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#define FORK_PROCESS_H
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extern pid_t fork_process(void);
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#endif /* FORK_PROCESS_H */
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26
pg_include/postmaster/pgarch.h
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26
pg_include/postmaster/pgarch.h
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/*-------------------------------------------------------------------------
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*
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* pgarch.h
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* Exports from postmaster/pgarch.c.
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/postmaster/pgarch.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _PGARCH_H
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#define _PGARCH_H
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/* ----------
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* Functions called from postmaster
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* ----------
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*/
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extern int pgarch_start(void);
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#ifdef EXEC_BACKEND
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extern void PgArchiverMain(int argc, char *argv[]);
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#endif
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#endif /* _PGARCH_H */
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62
pg_include/postmaster/postmaster.h
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62
pg_include/postmaster/postmaster.h
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/*-------------------------------------------------------------------------
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*
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* postmaster.h
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* Exports from postmaster/postmaster.c.
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/postmaster/postmaster.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _POSTMASTER_H
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#define _POSTMASTER_H
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/* GUC options */
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extern bool EnableSSL;
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extern int ReservedBackends;
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extern int PostPortNumber;
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extern int Unix_socket_permissions;
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extern char *Unix_socket_group;
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extern char *UnixSocketDir;
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extern char *ListenAddresses;
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extern bool ClientAuthInProgress;
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extern int PreAuthDelay;
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extern int AuthenticationTimeout;
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extern bool Log_connections;
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extern bool log_hostname;
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extern bool enable_bonjour;
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extern char *bonjour_name;
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extern bool restart_after_crash;
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#ifdef WIN32
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extern HANDLE PostmasterHandle;
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#else
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extern int postmaster_alive_fds[2];
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/*
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* Constants that represent which of postmaster_alive_fds is held by
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* postmaster, and which is used in children to check for postmaster death.
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*/
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#define POSTMASTER_FD_WATCH 0 /* used in children to check for
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* postmaster death */
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#define POSTMASTER_FD_OWN 1 /* kept open by postmaster only */
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#endif
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extern const char *progname;
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extern int PostmasterMain(int argc, char *argv[]);
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extern void ClosePostmasterPorts(bool am_syslogger);
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extern int MaxLivePostmasterChildren(void);
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#ifdef EXEC_BACKEND
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extern pid_t postmaster_forkexec(int argc, char *argv[]);
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extern int SubPostmasterMain(int argc, char *argv[]);
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extern Size ShmemBackendArraySize(void);
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extern void ShmemBackendArrayAllocation(void);
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#endif
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#endif /* _POSTMASTER_H */
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22
pg_include/postmaster/startup.h
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pg_include/postmaster/startup.h
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/*-------------------------------------------------------------------------
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*
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* startup.h
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* Exports from postmaster/startup.c.
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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*
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* src/include/postmaster/startup.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _STARTUP_H
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#define _STARTUP_H
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extern void HandleStartupProcInterrupts(void);
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extern void StartupProcessMain(void);
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extern void PreRestoreCommand(void);
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extern void PostRestoreCommand(void);
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extern bool IsPromoteTriggered(void);
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extern void ResetPromoteTriggered(void);
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#endif /* _STARTUP_H */
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90
pg_include/postmaster/syslogger.h
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90
pg_include/postmaster/syslogger.h
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/*-------------------------------------------------------------------------
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*
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* syslogger.h
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* Exports from postmaster/syslogger.c.
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*
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* Copyright (c) 2004-2012, PostgreSQL Global Development Group
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*
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* src/include/postmaster/syslogger.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _SYSLOGGER_H
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#define _SYSLOGGER_H
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#include <limits.h> /* for PIPE_BUF */
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/*
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* Primitive protocol structure for writing to syslogger pipe(s). The idea
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* here is to divide long messages into chunks that are not more than
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* PIPE_BUF bytes long, which according to POSIX spec must be written into
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* the pipe atomically. The pipe reader then uses the protocol headers to
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* reassemble the parts of a message into a single string. The reader can
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* also cope with non-protocol data coming down the pipe, though we cannot
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* guarantee long strings won't get split apart.
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*
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* We use non-nul bytes in is_last to make the protocol a tiny bit
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* more robust against finding a false double nul byte prologue. But
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* we still might find it in the len and/or pid bytes unless we're careful.
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*/
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#ifdef PIPE_BUF
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/* Are there any systems with PIPE_BUF > 64K? Unlikely, but ... */
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#if PIPE_BUF > 65536
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#define PIPE_CHUNK_SIZE 65536
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#else
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#define PIPE_CHUNK_SIZE ((int) PIPE_BUF)
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#endif
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#else /* not defined */
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/* POSIX says the value of PIPE_BUF must be at least 512, so use that */
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#define PIPE_CHUNK_SIZE 512
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#endif
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typedef struct
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{
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char nuls[2]; /* always \0\0 */
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uint16 len; /* size of this chunk (counts data only) */
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int32 pid; /* writer's pid */
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char is_last; /* last chunk of message? 't' or 'f' ('T' or
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* 'F' for CSV case) */
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char data[1]; /* data payload starts here */
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} PipeProtoHeader;
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typedef union
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{
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PipeProtoHeader proto;
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char filler[PIPE_CHUNK_SIZE];
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} PipeProtoChunk;
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#define PIPE_HEADER_SIZE offsetof(PipeProtoHeader, data)
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#define PIPE_MAX_PAYLOAD ((int) (PIPE_CHUNK_SIZE - PIPE_HEADER_SIZE))
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/* GUC options */
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extern bool Logging_collector;
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extern int Log_RotationAge;
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extern int Log_RotationSize;
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extern PGDLLIMPORT char *Log_directory;
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extern PGDLLIMPORT char *Log_filename;
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extern bool Log_truncate_on_rotation;
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extern int Log_file_mode;
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extern bool am_syslogger;
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#ifndef WIN32
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extern int syslogPipe[2];
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#else
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extern HANDLE syslogPipe[2];
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#endif
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extern int SysLogger_Start(void);
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extern void write_syslogger_file(const char *buffer, int count, int dest);
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#ifdef EXEC_BACKEND
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extern void SysLoggerMain(int argc, char *argv[]);
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#endif
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#endif /* _SYSLOGGER_H */
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20
pg_include/postmaster/walwriter.h
Executable file
20
pg_include/postmaster/walwriter.h
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@@ -0,0 +1,20 @@
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/*-------------------------------------------------------------------------
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*
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* walwriter.h
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* Exports from postmaster/walwriter.c.
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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*
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* src/include/postmaster/walwriter.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _WALWRITER_H
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#define _WALWRITER_H
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/* GUC options */
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extern int WalWriterDelay;
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extern void WalWriterMain(void);
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#endif /* _WALWRITER_H */
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