1 /* 2 * A page owner abstraction, indicating the current user of a memory region. 3 * 4 * Copyright (C) 2021 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #pragma once 23 24 #include <mem/flexpage.h> 25 26 27 28 /* The owner of a flexpage. */ 29 30 class PageOwner 31 { 32 public: 33 virtual ~PageOwner() 34 { 35 } 36 37 virtual void fill(Flexpage *flexpage) 38 { 39 (void) flexpage; 40 } 41 42 virtual void flush(Flexpage *flexpage, bool purge) 43 { 44 (void) flexpage; (void) purge; 45 } 46 47 virtual void remove(Flexpage *flexpage) 48 { 49 (void) flexpage; 50 } 51 }; 52 53 // vim: tabstop=4 expandtab shiftwidth=4