877 static void tvfsAllocPage(TestvfsBuffer *p, int iPage, int pgsz){  in tvfsAllocPage()  argument
878   assert( iPage<TESTVFS_MAX_PAGES );  in tvfsAllocPage()
879   if( p->aPage[iPage]==0 ){  in tvfsAllocPage()
880     p->aPage[iPage] = (u8 *)ckalloc(pgsz);  in tvfsAllocPage()
881     memset(p->aPage[iPage], 0, pgsz);  in tvfsAllocPage()
888   int iPage,                      /* Page to retrieve */  in tvfsShmMap()  argument
899     return pReal->pMethods->xShmMap(pReal, iPage, pgsz, isWrite, pp);  in tvfsShmMap()
912     Tcl_ListObjAppendElement(p->interp, pArg, Tcl_NewIntObj(iPage));  in tvfsShmMap()
925   if( rc==SQLITE_OK && isWrite && !pFd->pShm->aPage[iPage] ){  in tvfsShmMap()
926     tvfsAllocPage(pFd->pShm, iPage, pgsz);  in tvfsShmMap()
929     *pp = (void volatile *)pFd->pShm->aPage[iPage];  in tvfsShmMap()