mirror of
https://github.com/RGBCube/serenity
synced 2025-05-14 10:35:00 +00:00
b55199c227
The TTY subsystem is represented with unix devices, so it should be under the Devices directory like the Audio, Storage, GPU and HID subsystems.
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2019-2020, Sergey Bugaev <bugaevc@serenityos.org>
|
|
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/Devices/DeviceManagement.h>
|
|
#include <Kernel/Devices/TTY/SlavePTY.h>
|
|
#include <Kernel/FileSystem/DevPtsFS/FileSystem.h>
|
|
#include <Kernel/FileSystem/DevPtsFS/Inode.h>
|
|
#include <Kernel/Time/TimeManagement.h>
|
|
|
|
namespace Kernel {
|
|
|
|
ErrorOr<NonnullRefPtr<FileSystem>> DevPtsFS::try_create(ReadonlyBytes)
|
|
{
|
|
return TRY(adopt_nonnull_ref_or_enomem(new (nothrow) DevPtsFS));
|
|
}
|
|
|
|
DevPtsFS::DevPtsFS() = default;
|
|
DevPtsFS::~DevPtsFS() = default;
|
|
|
|
ErrorOr<void> DevPtsFS::initialize()
|
|
{
|
|
m_root_inode = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) DevPtsFSInode(*this, 1, nullptr)));
|
|
m_root_inode->m_metadata.inode = { fsid(), 1 };
|
|
m_root_inode->m_metadata.mode = 0040555;
|
|
m_root_inode->m_metadata.uid = 0;
|
|
m_root_inode->m_metadata.gid = 0;
|
|
m_root_inode->m_metadata.size = 0;
|
|
m_root_inode->m_metadata.mtime = TimeManagement::boot_time();
|
|
return {};
|
|
}
|
|
|
|
static unsigned inode_index_to_pty_index(InodeIndex inode_index)
|
|
{
|
|
VERIFY(inode_index > 1);
|
|
return inode_index.value() - 2;
|
|
}
|
|
|
|
Inode& DevPtsFS::root_inode()
|
|
{
|
|
return *m_root_inode;
|
|
}
|
|
|
|
ErrorOr<NonnullRefPtr<Inode>> DevPtsFS::get_inode(InodeIdentifier inode_id) const
|
|
{
|
|
if (inode_id.index() == 1)
|
|
return *m_root_inode;
|
|
|
|
unsigned pty_index = inode_index_to_pty_index(inode_id.index());
|
|
auto* device = DeviceManagement::the().get_device(201, pty_index);
|
|
VERIFY(device);
|
|
|
|
auto* pts_device = static_cast<SlavePTY*>(device);
|
|
auto inode = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) DevPtsFSInode(const_cast<DevPtsFS&>(*this), inode_id.index(), pts_device)));
|
|
inode->m_metadata.inode = inode_id;
|
|
inode->m_metadata.size = 0;
|
|
inode->m_metadata.uid = pts_device->uid();
|
|
inode->m_metadata.gid = pts_device->gid();
|
|
inode->m_metadata.mode = 0020600;
|
|
inode->m_metadata.major_device = device->major();
|
|
inode->m_metadata.minor_device = device->minor();
|
|
inode->m_metadata.mtime = TimeManagement::boot_time();
|
|
return inode;
|
|
}
|
|
|
|
}
|