diff options
Diffstat (limited to 'src/wal.c')
| -rw-r--r-- | src/wal.c | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -597,9 +597,13 @@ struct WalIterator { u32 *aPgno; /* Array of page numbers. */ int nEntry; /* Nr. of entries in aPgno[] and aIndex[] */ int iZero; /* Frame number associated with aPgno[0] */ - } aSegment[1]; /* One for every 32KB page in the wal-index */ + } aSegment[FLEXARRAY]; /* One for every 32KB page in the wal-index */ }; +/* Size (in bytes) of a WalIterator object suitable for N or fewer segments */ +#define SZ_WALITERATOR(N) \ + (offsetof(WalIterator,aSegment)*(N)*sizeof(struct WalSegment)) + /* ** Define the parameters of the hash tables in the wal-index file. There ** is a hash-table following every HASHTABLE_NPAGE page numbers in the @@ -1960,8 +1964,7 @@ static int walIteratorInit(Wal *pWal, u32 nBackfill, WalIterator **pp){ /* Allocate space for the WalIterator object. */ nSegment = walFramePage(iLast) + 1; - nByte = sizeof(WalIterator) - + (nSegment-1)*sizeof(struct WalSegment) + nByte = SZ_WALITERATOR(nSegment) + iLast*sizeof(ht_slot); p = (WalIterator *)sqlite3_malloc64(nByte + sizeof(ht_slot) * (iLast>HASHTABLE_NPAGE?HASHTABLE_NPAGE:iLast) |