diff options
Diffstat (limited to 'src/backup.c')
| -rw-r--r-- | src/backup.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/backup.c b/src/backup.c index 4881215e9..6abc11c20 100644 --- a/src/backup.c +++ b/src/backup.c @@ -219,13 +219,16 @@ static int backupOnePage(sqlite3_backup *p, Pgno iSrcPg, const u8 *zSrcData){ const int nCopy = MIN(nSrcPgsz, nDestPgsz); const i64 iEnd = (i64)iSrcPg*(i64)nSrcPgsz; #ifdef SQLITE_HAS_CODEC - int nSrcReserve = sqlite3BtreeGetReserve(p->pSrc); + /* Use BtreeGetReserveNoMutex() for the source b-tree, as although it is + ** guaranteed that the shared-mutex is held by this thread, handle + ** p->pSrc may not actually be the owner. */ + int nSrcReserve = sqlite3BtreeGetReserveNoMutex(p->pSrc); int nDestReserve = sqlite3BtreeGetReserve(p->pDest); #endif - int rc = SQLITE_OK; i64 iOff; + assert( sqlite3BtreeGetReserveNoMutex(p->pSrc)>=0 ); assert( p->bDestLocked ); assert( !isFatalError(p->rc) ); assert( iSrcPg!=PENDING_BYTE_PAGE(p->pSrc->pBt) ); |