1 /* 2 * A resource offering support for directory operations. 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 <fsserver/directory_object_interface.h> 25 #include <fsserver/resource.h> 26 27 28 29 /* Support for providing access to directories. 30 NOTE: Notification methods to be added when DirectoryObject is extended. */ 31 32 class DirectoryResource : public Resource, public DirectoryObject 33 { 34 protected: 35 /* Methods requiring customisation. */ 36 37 virtual long _opendir(flags_t flags, offset_t *size, l4_cap_idx_t *cap, 38 object_flags_t *object_flags) = 0; 39 40 public: 41 virtual ~DirectoryResource(); 42 43 /* Server details. */ 44 45 int expected_items(); 46 47 ipc_server_handler_type handler(); 48 49 void *interface() 50 { return static_cast<DirectoryObject *>(this); } 51 52 /* Directory reading methods. */ 53 54 virtual long opendir(flags_t flags, offset_t *size, l4_cap_idx_t *cap, 55 object_flags_t *object_flags); 56 }; 57 58 // vim: tabstop=4 expandtab shiftwidth=4