EcchiShell v1.0

You In Here : //proc/self/root/usr/include/pgsql/= STANDBY_SNAPSHOT_PENDING) /* * Recovery target type. * Only set during a Point in Time recovery, not when standby_mode = on */ typedef enum { RECOVERY_TARGET_UNSET, RECOVERY_TARGET_XID, RECOVERY_TARGET_TIME, RECOVERY_TARGET_NAME } RecoveryTargetType; extern XLogRecPtr XactLastRecEnd; extern bool reachedConsistency; /* these variables are GUC parameters related to XLOG */ extern int CheckPointSegments; extern int wal_keep_segments; extern int XLOGbuffers; extern int XLogArchiveTimeout; extern bool XLogArchiveMode; extern char *XLogArchiveCommand; extern bool EnableHotStandby; extern bool fullPageWrites; extern bool log_checkpoints; /* WAL levels */ typedef enum WalLevel { WAL_LEVEL_MINIMAL = 0, WAL_LEVEL_ARCHIVE, WAL_LEVEL_HOT_STANDBY } WalLevel; extern int wal_level; #define XLogArchivingActive() (XLogArchiveMode && wal_level >= WAL_LEVEL_ARCHIVE) #define XLogArchiveCommandSet() (XLogArchiveCommand[0] != '\0') /* * Is WAL-logging necessary for archival or log-shipping, or can we skip * WAL-logging if we fsync() the data before committing instead? */ #define XLogIsNeeded() (wal_level >= WAL_LEVEL_ARCHIVE) /* Do we need to WAL-log information required only for Hot Standby? */ #define XLogStandbyInfoActive() (wal_level >= WAL_LEVEL_HOT_STANDBY) #ifdef WAL_DEBUG extern bool XLOG_DEBUG; #endif /* * OR-able request flag bits for checkpoints. The "cause" bits are used only * for logging purposes. Note: the flags must be defined so that it's * sensible to OR together request flags arising from different requestors. */ /* These directly affect the behavior of CreateCheckPoint and subsidiaries */ #define CHECKPOINT_IS_SHUTDOWN 0x0001 /* Checkpoint is for shutdown */ #define CHECKPOINT_END_OF_RECOVERY 0x0002 /* Like shutdown checkpoint, * but issued at end of WAL * recovery */ #define CHECKPOINT_IMMEDIATE 0x0004 /* Do it without delays */ #define CHECKPOINT_FORCE 0x0008 /* Force even if no activity */ /* These are important to RequestCheckpoint */ #define CHECKPOINT_WAIT 0x0010 /* Wait for completion */ /* These indicate the cause of a checkpoint request */ #define CHECKPOINT_CAUSE_XLOG 0x0020 /* XLOG consumption */ #define CHECKPOINT_CAUSE_TIME 0x0040 /* Elapsed time */ #define CHECKPOINT_FLUSH_ALL 0x0080 /* Flush all pages, including those * belonging to unlogged tables */ /* Checkpoint statistics */ typedef struct CheckpointStatsData { TimestampTz ckpt_start_t; /* start of checkpoint */ TimestampTz ckpt_write_t; /* start of flushing buffers */ TimestampTz ckpt_sync_t; /* start of fsyncs */ TimestampTz ckpt_sync_end_t; /* end of fsyncs */ TimestampTz ckpt_end_t; /* end of checkpoint */ int ckpt_bufs_written; /* # of buffers written */ int ckpt_segs_added; /* # of new xlog segments created */ int ckpt_segs_removed; /* # of xlog segments deleted */ int ckpt_segs_recycled; /* # of xlog segments recycled */ int ckpt_sync_rels; /* # of relations synced */ uint64 ckpt_longest_sync; /* Longest sync for one relation */ uint64 ckpt_agg_sync_time; /* The sum of all the individual sync * times, which is not necessarily the * same as the total elapsed time for * the entire sync phase. */ } CheckpointStatsData; extern CheckpointStatsData CheckpointStats; extern XLogRecPtr XLogInsert(RmgrId rmid, uint8 info, XLogRecData *rdata); extern void XLogFlush(XLogRecPtr RecPtr); extern bool XLogBackgroundFlush(void); extern bool XLogNeedsFlush(XLogRecPtr RecPtr); extern int XLogFileInit(uint32 log, uint32 seg, bool *use_existent, bool use_lock); extern int XLogFileOpen(uint32 log, uint32 seg); extern void CheckXLogRemoved(uint32 log, uint32 seg, TimeLineID tli); extern void XLogSetAsyncXactLSN(XLogRecPtr record); extern Buffer RestoreBackupBlock(XLogRecPtr lsn, XLogRecord *record, int block_index, bool get_cleanup_lock, bool keep_buffer); extern void xlog_redo(XLogRecPtr lsn, XLogRecord *record); extern void xlog_desc(StringInfo buf, uint8 xl_info, char *rec); extern void issue_xlog_fsync(int fd, uint32 log, uint32 seg); extern bool RecoveryInProgress(void); extern bool HotStandbyActive(void); extern bool HotStandbyActiveInReplay(void); extern bool XLogInsertAllowed(void); extern void GetXLogReceiptTime(TimestampTz *rtime, bool *fromStream); extern XLogRecPtr GetXLogReplayRecPtr(TimeLineID *targetTLI); extern XLogRecPtr GetStandbyFlushRecPtr(TimeLineID *targetTLI); extern XLogRecPtr GetXLogInsertRecPtr(void); extern XLogRecPtr GetXLogWriteRecPtr(void); extern bool RecoveryIsPaused(void); extern void SetRecoveryPause(bool recoveryPause); extern TimestampTz GetLatestXTime(void); extern TimestampTz GetCurrentChunkReplayStartTime(void); extern void UpdateControlFile(void); extern uint64 GetSystemIdentifier(void); extern Size XLOGShmemSize(void); extern void XLOGShmemInit(void); extern void BootStrapXLOG(void); extern void StartupXLOG(void); extern void ShutdownXLOG(int code, Datum arg); extern void InitXLOGAccess(void); extern void CreateCheckPoint(int flags); extern bool CreateRestartPoint(int flags); extern void XLogPutNextOid(Oid nextOid); extern XLogRecPtr XLogRestorePoint(const char *rpName); extern void UpdateFullPageWrites(void); extern XLogRecPtr GetRedoRecPtr(void); extern XLogRecPtr GetInsertRecPtr(void); extern XLogRecPtr GetFlushRecPtr(void); extern void GetNextXidAndEpoch(TransactionId *xid, uint32 *epoch); extern TimeLineID GetRecoveryTargetTLI(void); extern void RemovePromoteSignalFiles(void); extern bool CheckPromoteSignal(void); extern void WakeupRecovery(void); extern void SetWalWriterSleeping(bool sleeping); /* * Starting/stopping a base backup */ extern XLogRecPtr do_pg_start_backup(const char *backupidstr, bool fast, char **labelfile); extern XLogRecPtr do_pg_stop_backup(char *labelfile, bool waitforarchive); extern void do_pg_abort_backup(void); /* File path names (all relative to $PGDATA) */ #define BACKUP_LABEL_FILE "backup_label" #define BACKUP_LABEL_OLD "backup_label.old" #endif /* XLOG_H */