diff options
Diffstat (limited to 'src/backup.c')
| -rw-r--r-- | src/backup.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/backup.c b/src/backup.c index 70a782665..411a9b8d6 100644 --- a/src/backup.c +++ b/src/backup.c @@ -669,10 +669,18 @@ void sqlite3BackupRestart(sqlite3_backup *pBackup){ */ int sqlite3BtreeCopyFile(Btree *pTo, Btree *pFrom){ int rc; + sqlite3_file *pFd; /* File descriptor for database pTo */ sqlite3_backup b; sqlite3BtreeEnter(pTo); sqlite3BtreeEnter(pFrom); + assert( sqlite3BtreeIsInTrans(pTo) ); + pFd = sqlite3PagerFile(sqlite3BtreePager(pTo)); + if( pFd->pMethods ){ + i64 nByte = sqlite3BtreeGetPageSize(pFrom)*(i64)sqlite3BtreeLastPage(pFrom); + sqlite3OsFileControl(pFd, SQLITE_FCNTL_OVERWRITE, &nByte); + } + /* Set up an sqlite3_backup object. sqlite3_backup.pDestDb must be set ** to 0. This is used by the implementations of sqlite3_backup_step() ** and sqlite3_backup_finish() to detect that they are being called @@ -698,6 +706,7 @@ int sqlite3BtreeCopyFile(Btree *pTo, Btree *pFrom){ pTo->pBt->pageSizeFixed = 0; } + assert( sqlite3BtreeIsInTrans(pTo)==0 ); sqlite3BtreeLeave(pFrom); sqlite3BtreeLeave(pTo); return rc; |