1 /* 2 * A resource offering support for creating contexts and 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/file_opening.h> 25 #include <fsserver/opener_context_resource.h> 26 #include <fsserver/opener_interface.h> 27 #include <fsserver/resource.h> 28 #include <fsserver/resource_registry.h> 29 30 31 32 /* Support for providing access to files. */ 33 34 class OpenerResource : public Resource, public FileOpening, public Opener 35 { 36 protected: 37 ResourceRegistry *_registry; 38 39 /* Notification methods. */ 40 41 virtual long notify_parent(const char *path); 42 43 public: 44 explicit OpenerResource(ResourceRegistry *registry); 45 46 virtual ~OpenerResource(); 47 48 /* Server details. */ 49 50 int expected_items(); 51 52 ipc_server_handler_type handler(); 53 54 void *interface() 55 { return static_cast<Opener *>(this); } 56 57 /* Direct access methods. */ 58 59 long open(const char *path, flags_t flags, offset_t *size, 60 l4_cap_idx_t *cap, object_flags_t *object_flags); 61 62 long remove(const char *path); 63 64 long rename(const char *source, const char *target); 65 66 long stat(const char *path, void *base, offset_t size); 67 68 /* Opener interface methods. */ 69 70 long context(l4_cap_idx_t *context); 71 }; 72 73 // vim: tabstop=4 expandtab shiftwidth=4