86   VFile *pVFile;        /* The underlying file */  member
210   VFile *pVFile = p->pVFile;  in inmemClose()  local
211   pVFile->nRef--;  in inmemClose()
212   if( pVFile->nRef==0 && pVFile->zFilename==0 ){  in inmemClose()
213     pVFile->sz = -1;  in inmemClose()
214     free(pVFile->a);  in inmemClose()
215     pVFile->a = 0;  in inmemClose()
226   VFile *pVFile = pHandle->pVFile;  in inmemRead()  local
227   if( iOfst<0 || iOfst>=pVFile->sz ){  in inmemRead()
231   if( iOfst+iAmt>pVFile->sz ){  in inmemRead()
233     iAmt = (int)(pVFile->sz - iOfst);  in inmemRead()
234     memcpy(pData, pVFile->a, iAmt);  in inmemRead()
237   memcpy(pData, pVFile->a + iOfst, iAmt);  in inmemRead()
247   VFile *pVFile = pHandle->pVFile;  in inmemWrite()  local
248   if( iOfst+iAmt > pVFile->sz ){  in inmemWrite()
253     aNew = realloc(pVFile->a, (int)(iOfst+iAmt));  in inmemWrite()
257     pVFile->a = aNew;  in inmemWrite()
258     if( iOfst > pVFile->sz ){  in inmemWrite()
259       memset(pVFile->a + pVFile->sz, 0, (int)(iOfst - pVFile->sz));  in inmemWrite()
261     pVFile->sz = (int)(iOfst + iAmt);  in inmemWrite()
263   memcpy(pVFile->a + iOfst, pData, iAmt);  in inmemWrite()
268   VFile *pVFile = pHandle->pVFile;  in inmemTruncate()  local
269   if( pVFile->sz>iSize && iSize>=0 ) pVFile->sz = (int)iSize;  in inmemTruncate()
276   *pSize = ((VHandle*)pFile)->pVFile->sz;  in inmemFileSize()
338   VFile *pVFile = createVFile(zFilename, 0);  in inmemOpen()  local
340   if( pVFile==0 ){  in inmemOpen()
343   pHandle->pVFile = pVFile;  in inmemOpen()
344   pVFile->nRef++;  in inmemOpen()
358   VFile *pVFile = findVFile(zFilename);  in inmemDelete()  local
359   if( pVFile==0 ) return SQLITE_OK;  in inmemDelete()
360   if( pVFile->nRef==0 ){  in inmemDelete()
361     free(pVFile->zFilename);  in inmemDelete()
362     pVFile->zFilename = 0;  in inmemDelete()
363     pVFile->sz = -1;  in inmemDelete()
364     free(pVFile->a);  in inmemDelete()
365     pVFile->a = 0;  in inmemDelete()
379   VFile *pVFile = findVFile(zFilename);  in inmemAccess()  local
380   *pResOut =  pVFile!=0;  in inmemAccess()