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Kernel: Make self-contained locking smart pointers their own classes

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Until now, our kernel has reimplemented a number of AK classes to
provide automatic internal locking:

- RefPtr
- NonnullRefPtr
- WeakPtr
- Weakable

This patch renames the Kernel classes so that they can coexist with
the original AK classes:

- RefPtr => LockRefPtr
- NonnullRefPtr => NonnullLockRefPtr
- WeakPtr => LockWeakPtr
- Weakable => LockWeakable

The goal here is to eventually get rid of the Lock* classes in favor of
using external locking.
This commit is contained in:
Andreas Kling 2022-08-19 20:53:40 +02:00
parent e475263113
commit 11eee67b85
360 changed files with 1703 additions and 1672 deletions
Download patch file Download diff file Expand all files Collapse all files

4
Kernel/Bus/VirtIO/Console.cpp
View file

@ -14,9 +14,9 @@ namespace Kernel::VirtIO {
unsigned Console::next_device_id = 0;
UNMAP_AFTER_INIT NonnullRefPtr<Console> Console::must_create(PCI::DeviceIdentifier const& pci_device_identifier)
UNMAP_AFTER_INIT NonnullLockRefPtr<Console> Console::must_create(PCI::DeviceIdentifier const& pci_device_identifier)
{
return adopt_ref_if_nonnull(new Console(pci_device_identifier)).release_nonnull();
return adopt_lock_ref_if_nonnull(new Console(pci_device_identifier)).release_nonnull();
}
UNMAP_AFTER_INIT void Console::initialize()

4
Kernel/Bus/VirtIO/Console.h
View file

@ -18,7 +18,7 @@ class Console
friend VirtIO::ConsolePort;
public:
static NonnullRefPtr<Console> must_create(PCI::DeviceIdentifier const&);
static NonnullLockRefPtr<Console> must_create(PCI::DeviceIdentifier const&);
virtual ~Console() override = default;
virtual StringView purpose() const override { return class_name(); }
@ -64,7 +64,7 @@ private:
virtual bool handle_device_config_change() override;
virtual void handle_queue_update(u16 queue_index) override;
Vector<RefPtr<ConsolePort>> m_ports;
Vector<LockRefPtr<ConsolePort>> m_ports;
void setup_multiport();
void process_control_message(ControlMessage message);
void write_control_message(ControlMessage message);

6
Kernel/Bus/VirtIO/ConsolePort.cpp
View file

@ -12,11 +12,11 @@ namespace Kernel::VirtIO {
unsigned ConsolePort::next_device_id = 0;
ErrorOr<NonnullRefPtr<ConsolePort>> ConsolePort::try_create(unsigned port, Console& console)
ErrorOr<NonnullLockRefPtr<ConsolePort>> ConsolePort::try_create(unsigned port, Console& console)
{
auto receive_buffer = TRY(Memory::RingBuffer::try_create("VirtIO::ConsolePort Receive"sv, RINGBUFFER_SIZE));
auto transmit_buffer = TRY(Memory::RingBuffer::try_create("VirtIO::ConsolePort Transmit"sv, RINGBUFFER_SIZE));
return adopt_nonnull_ref_or_enomem(new (nothrow) ConsolePort(port, console, move(receive_buffer), move(transmit_buffer)));
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) ConsolePort(port, console, move(receive_buffer), move(transmit_buffer)));
}
ConsolePort::ConsolePort(unsigned port, VirtIO::Console& console, NonnullOwnPtr<Memory::RingBuffer> receive_buffer, NonnullOwnPtr<Memory::RingBuffer> transmit_buffer)
@ -161,7 +161,7 @@ ErrorOr<size_t> ConsolePort::write(OpenFileDescription& desc, u64, UserOrKernelB
return total_bytes_copied;
}
ErrorOr<NonnullRefPtr<OpenFileDescription>> ConsolePort::open(int options)
ErrorOr<NonnullLockRefPtr<OpenFileDescription>> ConsolePort::open(int options)
{
if (!m_open)
m_console.send_open_control_message(m_port, true);

4
Kernel/Bus/VirtIO/ConsolePort.h
View file

@ -24,7 +24,7 @@ class Console;
class ConsolePort
: public CharacterDevice {
public:
static ErrorOr<NonnullRefPtr<ConsolePort>> try_create(unsigned port, VirtIO::Console&);
static ErrorOr<NonnullLockRefPtr<ConsolePort>> try_create(unsigned port, VirtIO::Console&);
void handle_queue_update(Badge<VirtIO::Console>, u16 queue_index);
@ -44,7 +44,7 @@ private:
virtual ErrorOr<size_t> read(OpenFileDescription&, u64, UserOrKernelBuffer&, size_t) override;
virtual bool can_write(OpenFileDescription const&, u64) const override;
virtual ErrorOr<size_t> write(OpenFileDescription&, u64, UserOrKernelBuffer const&, size_t) override;
virtual ErrorOr<NonnullRefPtr<OpenFileDescription>> open(int options) override;
virtual ErrorOr<NonnullLockRefPtr<OpenFileDescription>> open(int options) override;
static unsigned next_device_id;
u16 m_receive_queue {};

4
Kernel/Bus/VirtIO/RNG.cpp
View file

@ -9,9 +9,9 @@
namespace Kernel::VirtIO {
UNMAP_AFTER_INIT NonnullRefPtr<RNG> RNG::must_create(PCI::DeviceIdentifier const& device_identifier)
UNMAP_AFTER_INIT NonnullLockRefPtr<RNG> RNG::must_create(PCI::DeviceIdentifier const& device_identifier)
{
return adopt_ref_if_nonnull(new RNG(device_identifier)).release_nonnull();
return adopt_lock_ref_if_nonnull(new RNG(device_identifier)).release_nonnull();
}
UNMAP_AFTER_INIT void RNG::initialize()

2
Kernel/Bus/VirtIO/RNG.h
View file

@ -19,7 +19,7 @@ class RNG final
: public AtomicRefCounted<RNG>
, public VirtIO::Device {
public:
static NonnullRefPtr<RNG> must_create(PCI::DeviceIdentifier const&);
static NonnullLockRefPtr<RNG> must_create(PCI::DeviceIdentifier const&);
virtual StringView purpose() const override { return class_name(); }
virtual ~RNG() override = default;