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Separate out bgwriter code into a logically separate module, rather

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than being random pieces of other files.  Give bgwriter responsibility
for all checkpoint activity (other than a post-recovery checkpoint);
so this child process absorbs the functionality of the former transient
checkpoint and shutdown subprocesses.  While at it, create an actual
include file for postmaster.c, which for some reason never had its own
file before.
This commit is contained in:
Tom Lane
2004-05-29 22:48:23 +00:00
parent d531fd2cdc
commit 076a055acf
28 changed files with 1133 additions and 902 deletions
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48
src/include/miscadmin.h
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@ -13,11 +13,10 @@
* Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/miscadmin.h,v 1.161 2004/05/28 05:13:24 tgl Exp $
* $PostgreSQL: pgsql/src/include/miscadmin.h,v 1.162 2004/05/29 22:48:22 tgl Exp $
*
* NOTES
* some of the information in this file should be moved to
* other files.
* some of the information in this file should be moved to other files.
*
*-------------------------------------------------------------------------
*/
@ -25,6 +24,9 @@
#define MISCADMIN_H
#define PG_VERSIONSTR "postgres (PostgreSQL) " PG_VERSION "\n"
/*****************************************************************************
* System interrupt and critical section handling
*
@ -75,12 +77,15 @@ extern volatile uint32 CritSectionCount;
extern void ProcessInterrupts(void);
#ifndef WIN32
#define CHECK_FOR_INTERRUPTS() \
do { \
if (InterruptPending) \
ProcessInterrupts(); \
} while(0)
#else
#else /* WIN32 */
#define CHECK_FOR_INTERRUPTS() \
do { \
if (WaitForSingleObject(pgwin32_signal_event,0) == WAIT_OBJECT_0) \
@ -88,7 +93,8 @@ do { \
if (InterruptPending) \
ProcessInterrupts(); \
} while(0)
#endif
#endif /* WIN32 */
#define HOLD_INTERRUPTS() (InterruptHoldoffCount++)
@ -112,20 +118,6 @@ do { \
* globals.h -- *
*****************************************************************************/
/*
* from postmaster/postmaster.c
*/
extern bool ClientAuthInProgress;
extern int PostmasterMain(int argc, char *argv[]);
extern void ClosePostmasterPorts(bool pgstat_too);
#ifdef EXEC_BACKEND
extern pid_t postmaster_forkexec(int argc, char *argv[]);
extern int SubPostmasterMain(int argc, char *argv[]);
#endif
#define PG_VERSIONSTR "postgres (PostgreSQL) " PG_VERSION "\n"
/*
* from utils/init/globals.c
*/
@ -137,6 +129,9 @@ extern bool ExitOnAnyError;
extern char *DataDir;
extern DLLIMPORT int NBuffers;
extern int MaxBackends;
extern DLLIMPORT int MyProcPid;
extern struct Port *MyProcPort;
extern long MyCancelKey;
@ -216,21 +211,6 @@ extern int VacuumCostNaptime;
extern int VacuumCostBalance;
extern bool VacuumCostActive;
/*
* A few postmaster startup options are exported here so the
* configuration file processor can access them.
*/
extern bool EnableSSL;
extern bool SilentMode;
extern int MaxBackends;
extern int ReservedBackends;
extern DLLIMPORT int NBuffers;
extern int PostPortNumber;
extern int Unix_socket_permissions;
extern char *Unix_socket_group;
extern char *UnixSocketDir;
extern char *ListenAddresses;
/* in tcop/postgres.c */
extern void check_stack_depth(void);