diff options
Diffstat (limited to 'src/wal.h')
| -rw-r--r-- | src/wal.h | 30 |
1 files changed, 15 insertions, 15 deletions
@@ -22,11 +22,11 @@ /* Connection to a write-ahead log (WAL) file. ** There is one object of this type for each pager. */ -typedef struct Log Log; +typedef struct Wal Wal; /* Open and close a connection to a write-ahead log. */ -int sqlite3WalOpen(sqlite3_vfs*, const char *zDb, Log **ppLog); -int sqlite3WalClose(Log *pLog, sqlite3_file *pFd, int sync_flags, u8 *zBuf); +int sqlite3WalOpen(sqlite3_vfs*, const char *zDb, Wal **ppWal); +int sqlite3WalClose(Wal *pWal, sqlite3_file *pFd, int sync_flags, u8 *zBuf); /* Used by readers to open (lock) and close (unlock) a snapshot. A ** snapshot is like a read-transaction. It is the state of the database @@ -35,39 +35,39 @@ int sqlite3WalClose(Log *pLog, sqlite3_file *pFd, int sync_flags, u8 *zBuf); ** write to or checkpoint the WAL. sqlite3WalCloseSnapshot() closes the ** transaction and releases the lock. */ -int sqlite3WalOpenSnapshot(Log *pLog, int *); -void sqlite3WalCloseSnapshot(Log *pLog); +int sqlite3WalOpenSnapshot(Wal *pWal, int *); +void sqlite3WalCloseSnapshot(Wal *pWal); /* Read a page from the write-ahead log, if it is present. */ -int sqlite3WalRead(Log *pLog, Pgno pgno, int *pInLog, u8 *pOut); +int sqlite3WalRead(Wal *pWal, Pgno pgno, int *pInWal, u8 *pOut); /* Return the size of the database as it existed at the beginning ** of the snapshot */ -void sqlite3WalDbsize(Log *pLog, Pgno *pPgno); +void sqlite3WalDbsize(Wal *pWal, Pgno *pPgno); /* Obtain or release the WRITER lock. */ -int sqlite3WalWriteLock(Log *pLog, int op); +int sqlite3WalWriteLock(Wal *pWal, int op); /* Undo any frames written (but not committed) to the log */ -int sqlite3WalUndo(Log *pLog, int (*xUndo)(void *, Pgno), void *pUndoCtx); +int sqlite3WalUndo(Wal *pWal, int (*xUndo)(void *, Pgno), void *pUndoCtx); /* Return an integer that records the current (uncommitted) write ** position in the WAL */ -u32 sqlite3WalSavepoint(Log *pLog); +u32 sqlite3WalSavepoint(Wal *pWal); /* Move the write position of the WAL back to iFrame. Called in ** response to a ROLLBACK TO command. */ -int sqlite3WalSavepointUndo(Log *pLog, u32 iFrame); +int sqlite3WalSavepointUndo(Wal *pWal, u32 iFrame); /* Return true if data has been written but not committed to the log file. */ -int sqlite3WalDirty(Log *pLog); +int sqlite3WalDirty(Wal *pWal); /* Write a frame or frames to the log. */ -int sqlite3WalFrames(Log *pLog, int, PgHdr *, Pgno, int, int); +int sqlite3WalFrames(Wal *pWal, int, PgHdr *, Pgno, int, int); /* Copy pages from the log to the database file */ int sqlite3WalCheckpoint( - Log *pLog, /* Log connection */ + Wal *pWal, /* Write-ahead log connection */ sqlite3_file *pFd, /* File descriptor open on db file */ int sync_flags, /* Flags to sync db file with (or 0) */ u8 *zBuf, /* Temporary buffer to use */ @@ -80,6 +80,6 @@ int sqlite3WalCheckpoint( ** sqlite3WalCallback() was called. If no commits have occurred since ** the last call, then return 0. */ -int sqlite3WalCallback(Log *pLog); +int sqlite3WalCallback(Wal *pWal); #endif /* _WAL_H_ */ |