ladybird/Kernel/Devices/SelfTTYDevice.h
Andreas Kling d1371d66f7 Kernel: Use non-locking {Nonnull,}RefPtr for OpenFileDescription
This patch switches away from {Nonnull,}LockRefPtr to the non-locking
smart pointers throughout the kernel.

I've looked at the handful of places where these were being persisted
and I don't see any race situations.

Note that the process file descriptor table (Process::m_fds) was already
guarded via MutexProtected.
2023-03-07 00:30:12 +01:00

36 lines
1.0 KiB
C++

/*
* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/Devices/CharacterDevice.h>
namespace Kernel {
class SelfTTYDevice final : public CharacterDevice {
friend class DeviceManagement;
public:
static NonnullLockRefPtr<SelfTTYDevice> must_create();
virtual ~SelfTTYDevice() override;
private:
SelfTTYDevice();
// ^Device
virtual bool is_openable_by_jailed_processes() const override { return true; }
// ^CharacterDevice
virtual ErrorOr<NonnullRefPtr<OpenFileDescription>> open(int options) override;
virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
virtual ErrorOr<size_t> write(OpenFileDescription&, u64, UserOrKernelBuffer const&, size_t) override;
virtual bool can_read(OpenFileDescription const&, u64) const override;
virtual bool can_write(OpenFileDescription const&, u64) const override;
virtual StringView class_name() const override { return "SelfTTYDevice"sv; }
};
}