mirror of
https://github.com/SerenityOS/serenity
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57 lines
2 KiB
C++
57 lines
2 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 ErrorOr<NonnullRefPtr<InodeFile>> create(NonnullRefPtr<Inode>&& inode)
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{
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auto file = adopt_ref_if_nonnull(new (nothrow) 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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Inode const& inode() const { return *m_inode; }
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Inode& inode() { return *m_inode; }
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virtual bool can_read(OpenFileDescription const&, u64) const override { return true; }
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virtual bool can_write(OpenFileDescription const&, u64) const override { return true; }
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virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
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virtual ErrorOr<size_t> write(OpenFileDescription&, u64, UserOrKernelBuffer const&, size_t) override;
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virtual ErrorOr<void> ioctl(OpenFileDescription&, unsigned request, Userspace<void*> arg) override;
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virtual ErrorOr<Memory::Region*> mmap(Process&, OpenFileDescription&, Memory::VirtualRange const&, u64 offset, int prot, bool shared) override;
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virtual ErrorOr<struct stat> stat() const override { return inode().metadata().stat(); }
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virtual ErrorOr<NonnullOwnPtr<KString>> pseudo_path(OpenFileDescription const&) const override;
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virtual ErrorOr<void> truncate(u64) override;
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virtual ErrorOr<void> sync() override;
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virtual ErrorOr<void> chown(OpenFileDescription&, UserID, GroupID) override;
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virtual ErrorOr<void> chmod(OpenFileDescription&, mode_t) override;
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virtual StringView class_name() const override { return "InodeFile"sv; }
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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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