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55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <Kernel/FileSystem/File.h>
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namespace Kernel {
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class Inode;
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class InodeFile final : public File {
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public:
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static KResultOr<NonnullRefPtr<InodeFile>> create(NonnullRefPtr<Inode>&& inode)
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{
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auto file = adopt_ref_if_nonnull(new InodeFile(move(inode)));
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if (!file)
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return ENOMEM;
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return file.release_nonnull();
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}
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virtual ~InodeFile() override;
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const Inode& inode() const { return *m_inode; }
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Inode& inode() { return *m_inode; }
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virtual bool can_read(const FileDescription&, size_t) const override { return true; }
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virtual bool can_write(const FileDescription&, size_t) const override { return true; }
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virtual KResultOr<size_t> read(FileDescription&, u64, UserOrKernelBuffer&, size_t) override;
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virtual KResultOr<size_t> write(FileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
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virtual int ioctl(FileDescription&, unsigned request, FlatPtr arg) override;
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virtual KResultOr<Region*> mmap(Process&, FileDescription&, const Range&, u64 offset, int prot, bool shared) override;
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virtual String absolute_path(const FileDescription&) const override;
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virtual KResult truncate(u64) override;
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virtual KResult chown(FileDescription&, uid_t, gid_t) override;
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virtual KResult chmod(FileDescription&, mode_t) override;
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virtual const char* class_name() const override { return "InodeFile"; }
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virtual bool is_seekable() const override { return true; }
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virtual bool is_inode() const override { return true; }
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private:
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explicit InodeFile(NonnullRefPtr<Inode>&&);
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NonnullRefPtr<Inode> m_inode;
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};
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}
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