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/*
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Types.h>
#include <Kernel/FileSystem/FileSystem.h>
#include <Kernel/FileSystem/Inode.h>
namespace Kernel {
class SlavePTY;
class DevPtsFSInode;
class DevPtsFS final : public FileSystem {
friend class DevPtsFSInode;
public:
virtual ~DevPtsFS() override;
static NonnullRefPtr<DevPtsFS> create();
virtual KResult initialize() override;
virtual StringView class_name() const override { return "DevPtsFS"sv; }
virtual Inode& root_inode() override;
private:
DevPtsFS();
KResultOr<NonnullRefPtr<Inode>> get_inode(InodeIdentifier) const;
RefPtr<DevPtsFSInode> m_root_inode;
};
class DevPtsFSInode final : public Inode {
friend class DevPtsFS;
public:
virtual ~DevPtsFSInode() override;
DevPtsFS& fs() { return static_cast<DevPtsFS&>(Inode::fs()); }
DevPtsFS const& fs() const { return static_cast<DevPtsFS const&>(Inode::fs()); }
private:
DevPtsFSInode(DevPtsFS&, InodeIndex, SlavePTY*);
// ^Inode
virtual KResultOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, FileDescription*) const override;
virtual InodeMetadata metadata() const override;
virtual KResult traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
virtual KResultOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
virtual void flush_metadata() override;
virtual KResultOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer& buffer, FileDescription*) override;
virtual KResultOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual KResult add_child(Inode&, const StringView& name, mode_t) override;
virtual KResult remove_child(const StringView& name) override;
virtual KResult chmod(mode_t) override;
virtual KResult chown(UserID, GroupID) override;
WeakPtr<SlavePTY> m_pty;
InodeMetadata m_metadata;
};
}
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