diff options
Diffstat (limited to 'src/include/access/xlog.h')
| -rw-r--r-- | src/include/access/xlog.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/include/access/xlog.h b/src/include/access/xlog.h index 7412caa5f22..f60ed2d36cb 100644 --- a/src/include/access/xlog.h +++ b/src/include/access/xlog.h @@ -108,6 +108,7 @@ extern int wal_segment_size; extern int min_wal_size_mb; extern int max_wal_size_mb; extern int wal_keep_segments; +extern int max_slot_wal_keep_size_mb; extern int XLOGbuffers; extern int XLogArchiveTimeout; extern int wal_retrieve_retry_interval; @@ -255,6 +256,17 @@ typedef struct CheckpointStatsData extern CheckpointStatsData CheckpointStats; +/* + * GetWALAvailability return codes + */ +typedef enum WALAvailability +{ + WALAVAIL_INVALID_LSN, /* parameter error */ + WALAVAIL_NORMAL, /* WAL segment is within max_wal_size */ + WALAVAIL_RESERVED, /* WAL segment is reserved by a slot */ + WALAVAIL_REMOVED /* WAL segment has been removed */ +} WALAvailability; + struct XLogRecData; extern XLogRecPtr XLogInsertRecord(struct XLogRecData *rdata, @@ -305,6 +317,8 @@ extern void ShutdownXLOG(int code, Datum arg); extern void InitXLOGAccess(void); extern void CreateCheckPoint(int flags); extern bool CreateRestartPoint(int flags); +extern WALAvailability GetWALAvailability(XLogRecPtr restart_lsn); +extern XLogRecPtr CalculateMaxmumSafeLSN(void); extern void XLogPutNextOid(Oid nextOid); extern XLogRecPtr XLogRestorePoint(const char *rpName); extern void UpdateFullPageWrites(void); |