mirror of
https://github.com/SerenityOS/serenity
synced 2024-09-06 17:06:31 +00:00
f64e287b82
Besides removing the monolithic DevFSDeviceInode::determine_name() method, being able to determine a device's name inside the /dev hierarchy outside of DevFS has its uses.
61 lines
2.5 KiB
C++
61 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/CircularQueue.h>
|
|
#include <AK/Vector.h>
|
|
#include <Kernel/Devices/CharacterDevice.h>
|
|
|
|
class Console final : public Kernel::CharacterDevice {
|
|
AK_MAKE_ETERNAL
|
|
public:
|
|
static Console& the();
|
|
static void initialize();
|
|
static bool is_initialized();
|
|
|
|
Console();
|
|
virtual ~Console() override;
|
|
|
|
// ^CharacterDevice
|
|
virtual bool can_read(const Kernel::FileDescription&, size_t) const override;
|
|
virtual bool can_write(const Kernel::FileDescription&, size_t) const override { return true; }
|
|
virtual Kernel::KResultOr<size_t> read(Kernel::FileDescription&, size_t, Kernel::UserOrKernelBuffer&, size_t) override;
|
|
virtual Kernel::KResultOr<size_t> write(Kernel::FileDescription&, size_t, const Kernel::UserOrKernelBuffer&, size_t) override;
|
|
virtual const char* class_name() const override { return "Console"; }
|
|
|
|
void put_char(char);
|
|
|
|
const CircularQueue<char, 16384>& logbuffer() const { return m_logbuffer; }
|
|
|
|
// ^Device
|
|
virtual mode_t required_mode() const override { return 0666; }
|
|
virtual String device_name() const override { return "console"; }
|
|
|
|
private:
|
|
CircularQueue<char, 16384> m_logbuffer;
|
|
};
|