diff options
Diffstat (limited to 'src/os_unix.c')
| -rw-r--r-- | src/os_unix.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/src/os_unix.c b/src/os_unix.c index dce13e536..9f8204dfd 100644 --- a/src/os_unix.c +++ b/src/os_unix.c @@ -250,8 +250,9 @@ struct unixFile { /* ** Allowed values for the unixFile.ctrlFlags bitmask: */ -#define UNIXFILE_EXCL 0x01 /* Connections from one process only */ -#define UNIXFILE_RDONLY 0x02 /* Connection is read only */ +#define UNIXFILE_EXCL 0x01 /* Connections from one process only */ +#define UNIXFILE_RDONLY 0x02 /* Connection is read only */ +#define UNIXFILE_PERSIST_WAL 0x04 /* Persistent WAL mode */ /* ** Include code that is common to all os_*.c files @@ -3450,21 +3451,33 @@ static int fcntlSizeHint(unixFile *pFile, i64 nByte){ ** Information and control of an open file handle. */ static int unixFileControl(sqlite3_file *id, int op, void *pArg){ + unixFile *pFile = (unixFile*)id; switch( op ){ case SQLITE_FCNTL_LOCKSTATE: { - *(int*)pArg = ((unixFile*)id)->eFileLock; + *(int*)pArg = pFile->eFileLock; return SQLITE_OK; } case SQLITE_LAST_ERRNO: { - *(int*)pArg = ((unixFile*)id)->lastErrno; + *(int*)pArg = pFile->lastErrno; return SQLITE_OK; } case SQLITE_FCNTL_CHUNK_SIZE: { - ((unixFile*)id)->szChunk = *(int *)pArg; + pFile->szChunk = *(int *)pArg; return SQLITE_OK; } case SQLITE_FCNTL_SIZE_HINT: { - return fcntlSizeHint((unixFile *)id, *(i64 *)pArg); + return fcntlSizeHint(pFile, *(i64 *)pArg); + } + case SQLITE_FCNTL_PERSIST_WAL: { + int bPersist = *(int*)pArg; + if( bPersist<0 ){ + bPersist = (pFile->ctrlFlags & UNIXFILE_PERSIST_WAL)!=0; + }else if( bPersist==0 ){ + pFile->ctrlFlags &= ~UNIXFILE_PERSIST_WAL; + }else{ + pFile->ctrlFlags |= UNIXFILE_PERSIST_WAL; + } + return SQLITE_OK; } #ifndef NDEBUG /* The pager calls this method to signal that it has done |