240   if( p->pReal->pMethods ){  in vstatClose()
241     rc = p->pReal->pMethods->xClose(p->pReal);  in vstatClose()
259   rc = p->pReal->pMethods->xRead(p->pReal, zBuf, iAmt, iOfst);  in vstatRead()
279   rc = p->pReal->pMethods->xWrite(p->pReal, z, iAmt, iOfst);  in vstatWrite()
293   rc = p->pReal->pMethods->xTruncate(p->pReal, size);  in vstatTruncate()
303   rc = p->pReal->pMethods->xSync(p->pReal, flags);  in vstatSync()
314   rc = p->pReal->pMethods->xFileSize(p->pReal, pSize);  in vstatFileSize()
324   rc = p->pReal->pMethods->xLock(p->pReal, eLock);  in vstatLock()
335   rc = p->pReal->pMethods->xUnlock(p->pReal, eLock);  in vstatUnlock()
346   rc = p->pReal->pMethods->xCheckReservedLock(p->pReal, pResOut);  in vstatCheckReservedLock()
357   rc = p->pReal->pMethods->xFileControl(p->pReal, op, pArg);  in vstatFileControl()
370   rc = p->pReal->pMethods->xSectorSize(p->pReal);  in vstatSectorSize()
380   rc = p->pReal->pMethods->xDeviceCharacteristics(p->pReal);  in vstatDeviceCharacteristics()
393   return p->pReal->pMethods->xShmMap(p->pReal, iPg, pgsz, bExtend, pp);  in vstatShmMap()
399   return p->pReal->pMethods->xShmLock(p->pReal, offset, n, flags);  in vstatShmLock()
405   p->pReal->pMethods->xShmBarrier(p->pReal);  in vstatShmBarrier()
411   return p->pReal->pMethods->xShmUnmap(p->pReal, deleteFlag);  in vstatShmUnmap()
422   return p->pReal->pMethods->xFetch(p->pReal, iOfst, iAmt, pp);  in vstatFetch()
428   return p->pReal->pMethods->xUnfetch(p->pReal, iOfst, pPage);  in vstatUnfetch()
464   pFile->pMethods = rc ? 0 : &vstat_io_methods;  in vstatOpen()