mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 01:12:44 +00:00
1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Badge.h>
|
|
#include <Kernel/Devices/CharacterDevice.h>
|
|
#include <Kernel/Lock.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class MasterPTY;
|
|
|
|
class PTYMultiplexer final : public CharacterDevice {
|
|
AK_MAKE_ETERNAL
|
|
public:
|
|
PTYMultiplexer();
|
|
virtual ~PTYMultiplexer() override;
|
|
|
|
static void initialize()
|
|
{
|
|
the();
|
|
}
|
|
static PTYMultiplexer& the();
|
|
|
|
// ^CharacterDevice
|
|
virtual KResultOr<NonnullRefPtr<FileDescription>> open(int options) override;
|
|
virtual KResultOr<size_t> read(FileDescription&, u64, UserOrKernelBuffer&, size_t) override { return 0; }
|
|
virtual KResultOr<size_t> write(FileDescription&, u64, const UserOrKernelBuffer&, size_t) override { return 0; }
|
|
virtual bool can_read(const FileDescription&, size_t) const override { return true; }
|
|
virtual bool can_write(const FileDescription&, size_t) const override { return true; }
|
|
|
|
void notify_master_destroyed(Badge<MasterPTY>, unsigned index);
|
|
|
|
// ^Device
|
|
virtual mode_t required_mode() const override { return 0666; }
|
|
virtual String device_name() const override { return "ptmx"; }
|
|
|
|
private:
|
|
// ^CharacterDevice
|
|
virtual const char* class_name() const override { return "PTYMultiplexer"; }
|
|
|
|
Lock m_lock { "PTYMultiplexer" };
|
|
Vector<unsigned> m_freelist;
|
|
};
|
|
|
|
}
|