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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>
namespace Kernel {
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&, size_t) const override { return true; }
virtual bool can_write(const FileDescription&, size_t) const override { return true; }
virtual KResultOr<size_t> read(FileDescription&, u64, UserOrKernelBuffer&, size_t) override;
virtual KResultOr<size_t> write(FileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
virtual int ioctl(FileDescription&, unsigned request, FlatPtr arg) override;
virtual KResultOr<Region*> mmap(Process&, FileDescription&, const Range&, u64 offset, int prot, bool shared) override;
virtual String absolute_path(const FileDescription&) const override;
virtual KResult truncate(u64) override;
virtual KResult chown(FileDescription&, uid_t, gid_t) override;
virtual KResult chmod(FileDescription&, 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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