mirror of
https://github.com/SerenityOS/serenity
synced 2026-05-09 16:42:10 +02:00
3edc6ae0d6
Do this by: - Removing more instances of `LockRefPtr` and `NonnullLockRefPtr`. - Using better names of construction methods (i.e. `create` instead of `try_create`). - Only returning `NonnullRefPtr` on the `Device::try_create_device` method. - Removing a version of the `Device::try_create_device` method that called `DeviceType::try_create(forward<Args>(args)...)`, which was only used in a construction point in a VirtIO driver which now doesn't need this anymore.
66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/API/MajorNumberAllocation.h>
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#include <Kernel/Devices/Device.h>
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#include <Kernel/Devices/Generic/SelfTTYDevice.h>
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#include <Kernel/Devices/TTY/TTY.h>
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#include <Kernel/Sections.h>
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namespace Kernel {
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UNMAP_AFTER_INIT NonnullRefPtr<SelfTTYDevice> SelfTTYDevice::must_create()
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{
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return MUST(Device::try_create_device<SelfTTYDevice>());
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}
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ErrorOr<NonnullRefPtr<OpenFileDescription>> SelfTTYDevice::open(int options)
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{
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// Note: If for some odd reason we try to open this device (early on boot?)
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// while there's no current Process assigned, don't fail and return an error.
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if (!Process::has_current())
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return Error::from_errno(ESRCH);
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auto& current_process = Process::current();
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auto tty = current_process.tty();
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if (!tty)
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return Error::from_errno(ENXIO);
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auto description = TRY(OpenFileDescription::try_create(*tty));
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description->set_rw_mode(options);
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description->set_file_flags(options);
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return description;
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}
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bool SelfTTYDevice::can_read(OpenFileDescription const&, u64) const
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{
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VERIFY_NOT_REACHED();
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}
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bool SelfTTYDevice::can_write(OpenFileDescription const&, u64) const
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{
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VERIFY_NOT_REACHED();
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}
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ErrorOr<size_t> SelfTTYDevice::read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t)
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{
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VERIFY_NOT_REACHED();
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}
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ErrorOr<size_t> SelfTTYDevice::write(OpenFileDescription&, u64, UserOrKernelBuffer const&, size_t)
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{
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VERIFY_NOT_REACHED();
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}
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UNMAP_AFTER_INIT SelfTTYDevice::SelfTTYDevice()
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: CharacterDevice(MajorAllocation::CharacterDeviceFamily::Console, 0)
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{
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}
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UNMAP_AFTER_INIT SelfTTYDevice::~SelfTTYDevice()
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{
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}
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}
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