miscadmin.h
上传用户:blenddy
上传日期:2007-01-07
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文件大小:6k
- /*-------------------------------------------------------------------------
- *
- * miscadmin.h
- * this file contains general postgres administration and initialization
- * stuff that used to be spread out between the following files:
- * globals.h global variables
- * pdir.h directory path crud
- * pinit.h postgres initialization
- * pmod.h processing modes
- *
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- * $Id: miscadmin.h,v 1.40 1999/06/12 22:17:23 tgl Exp $
- *
- * NOTES
- * some of the information in this file will be moved to
- * other files.
- *
- *-------------------------------------------------------------------------
- */
- #ifndef MISCADMIN_H
- #define MISCADMIN_H
- /*****************************************************************************
- * globals.h -- *
- *****************************************************************************/
- /*
- * from postmaster/postmaster.c
- */
- extern int PostmasterMain(int argc, char *argv[]);
- /*
- * from utils/init/globals.c
- */
- extern bool Noversion;
- extern bool Quiet;
- extern bool QueryCancel;
- extern char *DataDir;
- extern int MyProcPid;
- extern struct Port *MyProcPort;
- extern long MyCancelKey;
- extern char OutputFileName[];
- /*
- * done in storage/backendid.h for now.
- *
- * extern BackendId MyBackendId;
- * extern BackendTag MyBackendTag;
- */
- extern bool MyDatabaseIdIsInitialized;
- extern Oid MyDatabaseId;
- extern bool TransactionInitWasProcessed;
- extern bool IsUnderPostmaster;
- extern short DebugLvl;
- /* Date/Time Configuration
- *
- * Constants to pass info from runtime environment:
- * USE_POSTGRES_DATES specifies traditional postgres format for output.
- * USE_ISO_DATES specifies ISO-compliant format for output.
- * USE_SQL_DATES specified Oracle/Ingres-compliant format for output.
- * USE_GERMAN_DATES specifies German-style dd.mm/yyyy date format.
- *
- * DateStyle specifies preference for date formatting for output.
- * EuroDates if client prefers dates interpreted and written w/European conventions.
- *
- * HasCTZSet if client timezone is specified by client.
- * CDayLight is the apparent daylight savings time status.
- * CTimeZone is the timezone offset in seconds.
- * CTZName is the timezone label.
- */
- #define MAXTZLEN 7
- #define USE_POSTGRES_DATES 0
- #define USE_ISO_DATES 1
- #define USE_SQL_DATES 2
- #define USE_GERMAN_DATES 3
- extern int DateStyle;
- extern bool EuroDates;
- extern bool HasCTZSet;
- extern bool CDayLight;
- extern int CTimeZone;
- extern char CTZName[];
- extern char FloatFormat[];
- extern char DateFormat[];
- extern bool disableFsync;
- extern bool allowSystemTableMods;
- extern int SortMem;
- extern Oid LastOidProcessed; /* for query rewrite */
- /* #define MAX_QUERY_SIZE (BLCKSZ*2) */
- #define MAX_PARSE_BUFFER MAX_QUERY_SIZE
- /*****************************************************************************
- * pdir.h -- *
- * POSTGRES directory path definitions. *
- *****************************************************************************/
- extern char *DatabaseName;
- extern char *DatabasePath;
- /* in utils/misc/database.c */
- extern void GetRawDatabaseInfo(char *name, int4 *owner, Oid *db_id, char *path, int *encoding);
- extern int GetDatabaseInfo(char *name, int4 *owner, char *path);
- extern char *ExpandDatabasePath(char *path);
- /* now in utils/init/miscinit.c */
- extern void SetDatabaseName(char *name);
- extern void SetDatabasePath(char *path);
- /* even if MB is not enabled, this function is neccesary
- * since pg_proc.h does have.
- */
- extern const char *getdatabaseencoding(void);
- extern char *getpgusername(void);
- extern void SetPgUserName(void);
- extern int GetUserId(void);
- extern void SetUserId(void);
- extern int ValidateBinary(char *path);
- extern int FindExec(char *backend, char *argv0, char *binary_name);
- extern int CheckPathAccess(char *path, char *name, int open_mode);
- /* lower case version for case-insensitive SQL referenced in pg_proc.h */
- #define GetPgUserName() getpgusername()
- /*****************************************************************************
- * pmod.h -- *
- * POSTGRES processing mode definitions. *
- *****************************************************************************/
- /*
- * Description:
- * There are four processing modes in POSTGRES. They are NoProcessing
- * or "none," BootstrapProcessing or "bootstrap," InitProcessing or
- * "initialization," and NormalProcessing or "normal."
- *
- * If a POSTGRES binary is in normal mode, then all code may be executed
- * normally. In the none mode, only bookkeeping code may be called. In
- * particular, access method calls may not occur in this mode since the
- * execution state is outside a transaction.
- *
- * The final two processing modes are used during special times. When the
- * system state indicates bootstrap processing, transactions are all given
- * transaction id "one" and are consequently guarenteed to commit. This mode
- * is used during the initial generation of template databases.
- *
- * Finally, the execution state is in initialization mode until all normal
- * initialization is complete. Some code behaves differently when executed in
- * this mode to enable system bootstrapping.
- */
- typedef enum ProcessingMode
- {
- NoProcessing, /* "nothing" can be done */
- BootstrapProcessing, /* bootstrap creation of template database */
- InitProcessing, /* initializing system */
- NormalProcessing /* normal processing */
- } ProcessingMode;
- /*****************************************************************************
- * pinit.h -- *
- * POSTGRES initialization and cleanup definitions. *
- *****************************************************************************/
- /*
- * Note:
- * XXX AddExitHandler not defined yet.
- */
- typedef int16 ExitStatus;
- #define NormalExitStatus (0)
- #define FatalExitStatus (127)
- /* XXX are there any other meaningful exit codes? */
- /* in utils/init/postinit.c */
- extern bool PostgresIsInitialized;
- extern void InitPostgres(char *name);
- /* in miscinit.c */
- extern void ExitPostgres(ExitStatus status);
- extern bool IsBootstrapProcessingMode(void);
- extern bool IsInitProcessingMode(void);
- extern bool IsNormalProcessingMode(void);
- extern void SetProcessingMode(ProcessingMode mode);
- extern ProcessingMode GetProcessingMode(void);
- #endif /* MISCADMIN_H */