mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-27 01:50:24 +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.
72 lines
2.6 KiB
C++
72 lines
2.6 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 <Kernel/FileSystem/InodeIdentifier.h>
|
|
#include <Kernel/TTY/TTY.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class MasterPTY;
|
|
|
|
class SlavePTY final : public TTY {
|
|
public:
|
|
virtual ~SlavePTY() override;
|
|
|
|
void on_master_write(const UserOrKernelBuffer&, ssize_t);
|
|
unsigned index() const { return m_index; }
|
|
|
|
time_t time_of_last_write() const { return m_time_of_last_write; }
|
|
|
|
virtual FileBlockCondition& block_condition() override;
|
|
|
|
private:
|
|
// ^TTY
|
|
virtual String tty_name() const override;
|
|
virtual ssize_t on_tty_write(const UserOrKernelBuffer&, ssize_t) override;
|
|
virtual void echo(u8) override;
|
|
|
|
// ^CharacterDevice
|
|
virtual bool can_read(const FileDescription&, size_t) const override;
|
|
virtual KResultOr<size_t> read(FileDescription&, size_t, UserOrKernelBuffer&, size_t) override;
|
|
virtual bool can_write(const FileDescription&, size_t) const override;
|
|
virtual const char* class_name() const override { return "SlavePTY"; }
|
|
virtual KResult close() override;
|
|
|
|
// ^Device
|
|
virtual String device_name() const override;
|
|
|
|
friend class MasterPTY;
|
|
SlavePTY(MasterPTY&, unsigned index);
|
|
|
|
RefPtr<MasterPTY> m_master;
|
|
time_t m_time_of_last_write { 0 };
|
|
unsigned m_index { 0 };
|
|
char m_tty_name[32];
|
|
};
|
|
|
|
}
|