1 /* 2 * Generic support for opening files. 3 * 4 * Copyright (C) 2021, 2022 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/accessor.h> 25 #include <fsserver/directory_accessor.h> 26 27 28 29 /* An interface offering file opening support. */ 30 31 class FileOpening 32 { 33 public: 34 virtual bool accessing_directory(flags_t flags, fileid_t fileid) = 0; 35 36 virtual bool accessing_file(flags_t flags, fileid_t fileid) = 0; 37 38 virtual bool directory_is_empty(fileid_t fileid) = 0; 39 40 virtual long get_fileid(const char *path, flags_t flags, fileid_t *fileid) = 0; 41 42 virtual long get_parent(const char *path, fileid_t *fileid); 43 44 virtual long make_accessor(flags_t flags, fileid_t fileid, 45 Accessor **accessor) = 0; 46 47 virtual long make_directory_accessor(flags_t flags, fileid_t fileid, 48 DirectoryAccessor **accessor) = 0; 49 50 /* Filesystem object access and manipulation methods. */ 51 52 virtual long make_directory_object(const char *path, sys_mode_t mode) = 0; 53 54 virtual long stat_object(const char *path, void *base, offset_t size) = 0; 55 56 virtual long remove_object(fileid_t fileid) = 0; 57 58 virtual long rename_object(const char *source, const char *target) = 0; 59 60 virtual long unlink_object(fileid_t parent_fileid, fileid_t fileid) = 0; 61 }; 62 63 // vim: tabstop=4 expandtab shiftwidth=4