/*-------------------------------------------------------------------------
*
* miscadmin.h
- * this file contains general postgres administration and initialization
+ * 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
+ * Over time, this has also become the preferred place for widely known
+ * resource-limitation stuff, such as work_mem and check_stack_depth().
*
- *
- * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $PostgreSQL: pgsql/src/include/miscadmin.h,v 1.140 2003/12/21 04:34:35 momjian Exp $
+ * src/include/miscadmin.h
*
* 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.
*
*-------------------------------------------------------------------------
*/
#ifndef MISCADMIN_H
#define MISCADMIN_H
+#include "pgtime.h" /* for pg_time_t */
+
+
+#define PG_BACKEND_VERSIONSTR "postgres (PostgreSQL) " PG_VERSION "\n"
/*****************************************************************************
* course, only if the interrupt holdoff counter is zero). See the
* related code for details.
*
+ * A lost connection is handled similarly, although the loss of connection
+ * does not raise a signal, but is detected when we fail to write to the
+ * socket. If there was a signal for a broken connection, we could make use of
+ * it by setting ClientConnectionLost in the signal handler.
+ *
* A related, but conceptually distinct, mechanism is the "critical section"
* mechanism. A critical section not only holds off cancel/die interrupts,
* but causes any ereport(ERROR) or ereport(FATAL) to become ereport(PANIC)
/* in globals.c */
/* these are marked volatile because they are set by signal handlers: */
-extern DLLIMPORT volatile bool InterruptPending;
+extern PGDLLIMPORT volatile bool InterruptPending;
extern volatile bool QueryCancelPending;
extern volatile bool ProcDiePending;
+extern volatile bool ClientConnectionLost;
+
/* these are marked volatile because they are examined by signal handlers: */
extern volatile bool ImmediateInterruptOK;
-extern volatile uint32 InterruptHoldoffCount;
-extern volatile uint32 CritSectionCount;
+extern PGDLLIMPORT volatile uint32 InterruptHoldoffCount;
+extern PGDLLIMPORT volatile uint32 CritSectionCount;
-/* in postgres.c */
+/* in tcop/postgres.c */
extern void ProcessInterrupts(void);
+#ifndef WIN32
+
#define CHECK_FOR_INTERRUPTS() \
- do { \
- if (InterruptPending) \
- ProcessInterrupts(); \
- } while(0)
+do { \
+ if (InterruptPending) \
+ ProcessInterrupts(); \
+} while(0)
+#else /* WIN32 */
+
+#define CHECK_FOR_INTERRUPTS() \
+do { \
+ if (UNBLOCKED_SIGNAL_QUEUE()) \
+ pgwin32_dispatch_queued_signals(); \
+ if (InterruptPending) \
+ ProcessInterrupts(); \
+} while(0)
+#endif /* WIN32 */
+
#define HOLD_INTERRUPTS() (InterruptHoldoffCount++)
#define RESUME_INTERRUPTS() \
- do { \
- Assert(InterruptHoldoffCount > 0); \
- InterruptHoldoffCount--; \
- } while(0)
+do { \
+ Assert(InterruptHoldoffCount > 0); \
+ InterruptHoldoffCount--; \
+} while(0)
#define START_CRIT_SECTION() (CritSectionCount++)
#define END_CRIT_SECTION() \
- do { \
- Assert(CritSectionCount > 0); \
- CritSectionCount--; \
- } while(0)
+do { \
+ Assert(CritSectionCount > 0); \
+ CritSectionCount--; \
+} while(0)
-#define PG_DELAY(_msec) \
-{ \
- struct timeval delay; \
- delay.tv_sec = (_msec) / 1000; \
- delay.tv_usec = ((_msec) % 1000) * 1000; \
- (void) select(0, NULL, NULL, NULL, &delay); \
-}
/*****************************************************************************
* globals.h -- *
*****************************************************************************/
-/*
- * from postmaster/postmaster.c
- */
-extern bool ClientAuthInProgress;
-extern const bool ExecBackend;
-
-extern int PostmasterMain(int argc, char *argv[]);
-extern void ClosePostmasterPorts(bool pgstat_too);
-
/*
* from utils/init/globals.c
*/
+extern pid_t PostmasterPid;
extern bool IsPostmasterEnvironment;
-extern bool IsUnderPostmaster;
+extern PGDLLIMPORT bool IsUnderPostmaster;
+extern bool IsBinaryUpgrade;
extern bool ExitOnAnyError;
-extern bool Noversion;
-extern char *DataDir;
+extern PGDLLIMPORT char *DataDir;
+
+extern PGDLLIMPORT int NBuffers;
+extern int MaxBackends;
+extern int MaxConnections;
-extern DLLIMPORT int MyProcPid;
-extern struct Port *MyProcPort;
+extern PGDLLIMPORT int MyProcPid;
+extern PGDLLIMPORT pg_time_t MyStartTime;
+extern PGDLLIMPORT struct Port *MyProcPort;
extern long MyCancelKey;
+extern int MyPMChildSlot;
extern char OutputFileName[];
-extern char pg_pathname[];
+extern PGDLLIMPORT char my_exec_path[];
+extern char pkglib_path[];
+
+#ifdef EXEC_BACKEND
+extern char postgres_exec_path[];
+#endif
/*
* done in storage/backendid.h for now.
*
* extern BackendId MyBackendId;
*/
-extern DLLIMPORT Oid MyDatabaseId;
+extern PGDLLIMPORT Oid MyDatabaseId;
+
+extern PGDLLIMPORT Oid MyDatabaseTableSpace;
/*
* Date/Time Configuration
#define USE_ISO_DATES 1
#define USE_SQL_DATES 2
#define USE_GERMAN_DATES 3
+#define USE_XSD_DATES 4
/* valid DateOrder values */
#define DATEORDER_YMD 0
extern int DateStyle;
extern int DateOrder;
+/*
+ * IntervalStyles
+ * INTSTYLE_POSTGRES Like Postgres < 8.4 when DateStyle = 'iso'
+ * INTSTYLE_POSTGRES_VERBOSE Like Postgres < 8.4 when DateStyle != 'iso'
+ * INTSTYLE_SQL_STANDARD SQL standard interval literals
+ * INTSTYLE_ISO_8601 ISO-8601-basic formatted intervals
+ */
+#define INTSTYLE_POSTGRES 0
+#define INTSTYLE_POSTGRES_VERBOSE 1
+#define INTSTYLE_SQL_STANDARD 2
+#define INTSTYLE_ISO_8601 3
+
+extern int IntervalStyle;
+
/*
* HasCTZSet is true if user has set timezone as a numeric offset from UTC.
* If so, CTimeZone is the timezone offset in seconds (using the Unix-ish
extern bool enableFsync;
extern bool allowSystemTableMods;
-extern DLLIMPORT int SortMem;
-extern int VacuumMem;
+extern PGDLLIMPORT int work_mem;
+extern PGDLLIMPORT int maintenance_work_mem;
-/*
- * A few postmaster startup options are exported here so the
- * configuration file processor can access them.
- */
-extern bool NetServer;
-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 *VirtualHost;
+extern int VacuumCostPageHit;
+extern int VacuumCostPageMiss;
+extern int VacuumCostPageDirty;
+extern int VacuumCostLimit;
+extern int VacuumCostDelay;
+
+extern int VacuumPageHit;
+extern int VacuumPageMiss;
+extern int VacuumPageDirty;
+
+extern int VacuumCostBalance;
+extern bool VacuumCostActive;
+
+
+/* in tcop/postgres.c */
+
+#if defined(__ia64__) || defined(__ia64)
+typedef struct
+{
+ char *stack_base_ptr;
+ char *register_stack_base_ptr;
+} pg_stack_base_t;
+#else
+typedef char *pg_stack_base_t;
+#endif
+extern pg_stack_base_t set_stack_base(void);
+extern void restore_stack_base(pg_stack_base_t base);
+extern void check_stack_depth(void);
+
+/* in tcop/utility.c */
+extern void PreventCommandIfReadOnly(const char *cmdname);
+extern void PreventCommandDuringRecovery(const char *cmdname);
+
+/* in utils/misc/guc.c */
+extern int trace_recovery_messages;
+extern int trace_recovery(int trace_level);
/*****************************************************************************
* pdir.h -- *
* POSTGRES directory path definitions. *
*****************************************************************************/
-extern char *DatabasePath;
+/* flags to be OR'd to form sec_context */
+#define SECURITY_LOCAL_USERID_CHANGE 0x0001
+#define SECURITY_RESTRICTED_OPERATION 0x0002
-/* in utils/misc/database.c */
-extern void GetRawDatabaseInfo(const char *name, Oid *db_id, char *path);
-extern char *ExpandDatabasePath(const char *path);
+extern char *DatabasePath;
/* now in utils/init/miscinit.c */
extern void SetDatabasePath(const char *path);
-extern char *GetUserNameFromId(AclId userid);
-extern AclId GetUserId(void);
-extern void SetUserId(AclId userid);
-extern AclId GetSessionUserId(void);
-extern void SetSessionUserId(AclId userid);
-extern void InitializeSessionUserId(const char *username);
+extern char *GetUserNameFromId(Oid roleid);
+extern Oid GetUserId(void);
+extern Oid GetOuterUserId(void);
+extern Oid GetSessionUserId(void);
+extern void GetUserIdAndSecContext(Oid *userid, int *sec_context);
+extern void SetUserIdAndSecContext(Oid userid, int sec_context);
+extern bool InLocalUserIdChange(void);
+extern bool InSecurityRestrictedOperation(void);
+extern void GetUserIdAndContext(Oid *userid, bool *sec_def_context);
+extern void SetUserIdAndContext(Oid userid, bool sec_def_context);
+extern void InitializeSessionUserId(const char *rolename);
extern void InitializeSessionUserIdStandalone(void);
-extern void SetSessionAuthorization(AclId userid, bool is_superuser);
+extern void SetSessionAuthorization(Oid userid, bool is_superuser);
+extern Oid GetCurrentRoleId(void);
+extern void SetCurrentRoleId(Oid roleid, bool is_superuser);
extern void SetDataDir(const char *dir);
-
-extern int FindExec(char *full_path, const char *argv0,
- const char *binary_name);
-extern int CheckPathAccess(char *path, char *name, int open_mode);
+extern void ChangeToDataDir(void);
+extern char *make_absolute_path(const char *path);
/* in utils/misc/superuser.c */
extern bool superuser(void); /* current user is superuser */
-extern bool superuser_arg(AclId userid); /* given user is superuser */
+extern bool superuser_arg(Oid roleid); /* given user is superuser */
/*****************************************************************************
*****************************************************************************/
/* in utils/init/postinit.c */
-extern void InitPostgres(const char *dbname, const char *username);
+extern void pg_split_opts(char **argv, int *argcp, char *optstr);
+extern void InitPostgres(const char *in_dbname, Oid dboid, const char *username,
+ char *out_dbname);
extern void BaseInit(void);
/* in utils/init/miscinit.c */
-extern void IgnoreSystemIndexes(bool mode);
-extern bool IsIgnoringSystemIndexes(void);
-extern void SetReindexProcessing(Oid heapOid, Oid indexOid);
-extern bool ReindexIsProcessingHeap(Oid heapOid);
-extern bool ReindexIsProcessingIndex(Oid indexOid);
-extern void CreateDataDirLockFile(const char *datadir, bool amPostmaster);
+extern bool IgnoreSystemIndexes;
+extern PGDLLIMPORT bool process_shared_preload_libraries_in_progress;
+extern char *shared_preload_libraries_string;
+extern char *local_preload_libraries_string;
+
+/*
+ * As of 9.1, the contents of the data-directory lock file are:
+ *
+ * line #
+ * 1 postmaster PID (or negative of a standalone backend's PID)
+ * 2 data directory path
+ * 3 postmaster start timestamp (time_t representation)
+ * 4 port number
+ * 5 socket directory path (empty on Windows)
+ * 6 first listen_address (IP address or "*"; empty if no TCP port)
+ * 7 shared memory key (not present on Windows)
+ *
+ * Lines 6 and up are added via AddToDataDirLockFile() after initial file
+ * creation; they have to be ordered according to time of addition.
+ *
+ * The socket lock file, if used, has the same contents as lines 1-5.
+ */
+#define LOCK_FILE_LINE_PID 1
+#define LOCK_FILE_LINE_DATA_DIR 2
+#define LOCK_FILE_LINE_START_TIME 3
+#define LOCK_FILE_LINE_PORT 4
+#define LOCK_FILE_LINE_SOCKET_DIR 5
+#define LOCK_FILE_LINE_LISTEN_ADDR 6
+#define LOCK_FILE_LINE_SHMEM_KEY 7
+
+extern void CreateDataDirLockFile(bool amPostmaster);
extern void CreateSocketLockFile(const char *socketfile, bool amPostmaster);
extern void TouchSocketLockFile(void);
-extern void RecordSharedMemoryInLockFile(unsigned long id1,
- unsigned long id2);
+extern void AddToDataDirLockFile(int target_line, const char *str);
extern void ValidatePgVersion(const char *path);
-extern void process_preload_libraries(char *preload_libraries_string);
+extern void process_shared_preload_libraries(void);
+extern void process_local_preload_libraries(void);
+extern void pg_bindtextdomain(const char *domain);
+extern bool is_authenticated_user_replication_role(void);
+
+/* in access/transam/xlog.c */
+extern bool BackupInProgress(void);
+extern void CancelBackup(void);
#endif /* MISCADMIN_H */
projects / postgresql / blobdiff