sqlite3OsSectorSize  369 ext/pdo_sqlite/sqlite/src/os.h int sqlite3OsSectorSize(OsFile *id);
sqlite3OsSectorSize 1420 ext/pdo_sqlite/sqlite/src/pager.c   pPager->sectorSize = sqlite3OsSectorSize(pPager->fd);
sqlite3OsSectorSize 1767 ext/pdo_sqlite/sqlite/src/pager.c     pPager->sectorSize = sqlite3OsSectorSize(fd);