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- /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #pragma once
- #include <Kernel/FileSystem/File.h>
- class Inode;
- class InodeFile final : public File {
- public:
- static NonnullRefPtr<InodeFile> create(NonnullRefPtr<Inode>&& inode)
- {
- return adopt(*new InodeFile(move(inode)));
- }
- virtual ~InodeFile() override;
- const Inode& inode() const { return *m_inode; }
- Inode& inode() { return *m_inode; }
- virtual bool can_read(const FileDescription&) const override { return true; }
- virtual bool can_write(const FileDescription&) const override { return true; }
- virtual ssize_t read(FileDescription&, u8*, ssize_t) override;
- virtual ssize_t write(FileDescription&, const u8*, ssize_t) override;
- virtual KResultOr<Region*> mmap(Process&, FileDescription&, VirtualAddress preferred_vaddr, size_t offset, size_t size, int prot) override;
- virtual String absolute_path(const FileDescription&) const override;
- virtual KResult truncate(u64) override;
- virtual KResult chown(uid_t, gid_t) override;
- virtual KResult chmod(mode_t) override;
- virtual const char* class_name() const override { return "InodeFile"; }
- virtual bool is_seekable() const override { return true; }
- virtual bool is_inode() const override { return true; }
- private:
- explicit InodeFile(NonnullRefPtr<Inode>&&);
- NonnullRefPtr<Inode> m_inode;
- };
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