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ae197deb6b
Prior to this change, both uid_t and gid_t were typedef'ed to `u32`. This made it easy to use them interchangeably. Let's not allow that. This patch adds UserID and GroupID using the AK::DistinctNumeric mechanism we've already been employing for pid_t/ProcessID.
56 lines
1.9 KiB
C++
56 lines
1.9 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 (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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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 KResult ioctl(FileDescription&, unsigned request, Userspace<void*> arg) override;
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virtual KResultOr<Memory::Region*> mmap(Process&, FileDescription&, Memory::VirtualRange const&, u64 offset, int prot, bool shared) override;
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virtual KResult stat(::stat& buffer) const override { return inode().metadata().stat(buffer); }
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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&, UserID, GroupID) override;
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virtual KResult chmod(FileDescription&, mode_t) override;
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virtual StringView 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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