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

Browse source 
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/FileSystem/SysFS/Subsystems/Devices/Directory.cpp
View file

@ -12,9 +12,9 @@
namespace Kernel {
UNMAP_AFTER_INIT NonnullRefPtr<SysFSDevicesDirectory> SysFSDevicesDirectory::must_create(SysFSRootDirectory const& root_directory)
UNMAP_AFTER_INIT NonnullLockRefPtr<SysFSDevicesDirectory> SysFSDevicesDirectory::must_create(SysFSRootDirectory const& root_directory)
{
auto devices_directory = adopt_ref_if_nonnull(new (nothrow) SysFSDevicesDirectory(root_directory)).release_nonnull();
auto devices_directory = adopt_lock_ref_if_nonnull(new (nothrow) SysFSDevicesDirectory(root_directory)).release_nonnull();
MUST(devices_directory->m_child_components.with([&](auto& list) -> ErrorOr<void> {
list.append(SysFSStorageDirectory::must_create(*devices_directory));
list.append(SysFSGraphicsDirectory::must_create(*devices_directory));

2
Kernel/FileSystem/SysFS/Subsystems/Devices/Directory.h
View file

@ -14,7 +14,7 @@ namespace Kernel {
class SysFSDevicesDirectory final : public SysFSDirectory {
public:
virtual StringView name() const override { return "devices"sv; }
static NonnullRefPtr<SysFSDevicesDirectory> must_create(SysFSRootDirectory const&);
static NonnullLockRefPtr<SysFSDevicesDirectory> must_create(SysFSRootDirectory const&);
private:
explicit SysFSDevicesDirectory(SysFSRootDirectory const&);

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Graphics/Directory.cpp
View file

@ -10,9 +10,9 @@
namespace Kernel {
UNMAP_AFTER_INIT NonnullRefPtr<SysFSGraphicsDirectory> SysFSGraphicsDirectory::must_create(SysFSDevicesDirectory const& parent_directory)
UNMAP_AFTER_INIT NonnullLockRefPtr<SysFSGraphicsDirectory> SysFSGraphicsDirectory::must_create(SysFSDevicesDirectory const& parent_directory)
{
auto directory = adopt_ref(*new (nothrow) SysFSGraphicsDirectory(parent_directory));
auto directory = adopt_lock_ref(*new (nothrow) SysFSGraphicsDirectory(parent_directory));
MUST(directory->m_child_components.with([&](auto& list) -> ErrorOr<void> {
list.append(SysFSDisplayConnectorsDirectory::must_create(*directory));
return {};

2
Kernel/FileSystem/SysFS/Subsystems/Devices/Graphics/Directory.h
View file

@ -17,7 +17,7 @@ class SysFSGraphicsDirectory : public SysFSDirectory {
public:
virtual StringView name() const override { return "graphics"sv; }
static NonnullRefPtr<SysFSGraphicsDirectory> must_create(SysFSDevicesDirectory const&);
static NonnullLockRefPtr<SysFSGraphicsDirectory> must_create(SysFSDevicesDirectory const&);
private:
explicit SysFSGraphicsDirectory(SysFSDevicesDirectory const&);

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Graphics/DisplayConnector/DeviceAttribute.cpp
View file

@ -32,9 +32,9 @@ StringView DisplayConnectorAttributeSysFSComponent::name() const
}
}
NonnullRefPtr<DisplayConnectorAttributeSysFSComponent> DisplayConnectorAttributeSysFSComponent::must_create(DisplayConnectorSysFSDirectory const& device_directory, Type type)
NonnullLockRefPtr<DisplayConnectorAttributeSysFSComponent> DisplayConnectorAttributeSysFSComponent::must_create(DisplayConnectorSysFSDirectory const& device_directory, Type type)
{
return adopt_ref(*new (nothrow) DisplayConnectorAttributeSysFSComponent(device_directory, type));
return adopt_lock_ref(*new (nothrow) DisplayConnectorAttributeSysFSComponent(device_directory, type));
}
DisplayConnectorAttributeSysFSComponent::DisplayConnectorAttributeSysFSComponent(DisplayConnectorSysFSDirectory const& device_directory, Type type)

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Graphics/DisplayConnector/DeviceAttribute.h
View file

@ -25,7 +25,7 @@ public:
};
public:
static NonnullRefPtr<DisplayConnectorAttributeSysFSComponent> must_create(DisplayConnectorSysFSDirectory const& device_directory, Type);
static NonnullLockRefPtr<DisplayConnectorAttributeSysFSComponent> must_create(DisplayConnectorSysFSDirectory const& device_directory, Type);
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
virtual ~DisplayConnectorAttributeSysFSComponent() {};
@ -35,7 +35,7 @@ public:
protected:
ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const;
DisplayConnectorAttributeSysFSComponent(DisplayConnectorSysFSDirectory const& device, Type);
NonnullRefPtr<DisplayConnector> m_device;
NonnullLockRefPtr<DisplayConnector> m_device;
Type const m_type { Type::MutableModeSettingCapable };
};

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Graphics/DisplayConnector/DeviceDirectory.cpp
View file

@ -19,11 +19,11 @@ DisplayConnector const& DisplayConnectorSysFSDirectory::device(Badge<DisplayConn
return *m_device;
}
UNMAP_AFTER_INIT NonnullRefPtr<DisplayConnectorSysFSDirectory> DisplayConnectorSysFSDirectory::create(SysFSDirectory const& parent_directory, DisplayConnector const& device)
UNMAP_AFTER_INIT NonnullLockRefPtr<DisplayConnectorSysFSDirectory> DisplayConnectorSysFSDirectory::create(SysFSDirectory const& parent_directory, DisplayConnector const& device)
{
// FIXME: Handle allocation failure gracefully
auto device_name = MUST(KString::formatted("{}", device.minor()));
auto directory = adopt_ref(*new (nothrow) DisplayConnectorSysFSDirectory(move(device_name), parent_directory, device));
auto directory = adopt_lock_ref(*new (nothrow) DisplayConnectorSysFSDirectory(move(device_name), parent_directory, device));
MUST(directory->m_child_components.with([&](auto& list) -> ErrorOr<void> {
list.append(DisplayConnectorAttributeSysFSComponent::must_create(*directory, DisplayConnectorAttributeSysFSComponent::Type::MutableModeSettingCapable));
list.append(DisplayConnectorAttributeSysFSComponent::must_create(*directory, DisplayConnectorAttributeSysFSComponent::Type::DoubleFrameBufferingCapable));

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Graphics/DisplayConnector/DeviceDirectory.h
View file

@ -15,7 +15,7 @@ namespace Kernel {
class DisplayConnectorAttributeSysFSComponent;
class DisplayConnectorSysFSDirectory final : public SysFSDirectory {
public:
static NonnullRefPtr<DisplayConnectorSysFSDirectory> create(SysFSDirectory const&, DisplayConnector const&);
static NonnullLockRefPtr<DisplayConnectorSysFSDirectory> create(SysFSDirectory const&, DisplayConnector const&);
virtual StringView name() const override { return m_device_directory_name->view(); }
@ -23,7 +23,7 @@ public:
private:
DisplayConnectorSysFSDirectory(NonnullOwnPtr<KString> device_directory_name, SysFSDirectory const&, DisplayConnector const&);
RefPtr<DisplayConnector> m_device;
LockRefPtr<DisplayConnector> m_device;
NonnullOwnPtr<KString> m_device_directory_name;
};

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Graphics/DisplayConnector/Directory.cpp
View file

@ -16,9 +16,9 @@ namespace Kernel {
static SysFSDisplayConnectorsDirectory* s_the { nullptr };
UNMAP_AFTER_INIT NonnullRefPtr<SysFSDisplayConnectorsDirectory> SysFSDisplayConnectorsDirectory::must_create(SysFSGraphicsDirectory const& parent_directory)
UNMAP_AFTER_INIT NonnullLockRefPtr<SysFSDisplayConnectorsDirectory> SysFSDisplayConnectorsDirectory::must_create(SysFSGraphicsDirectory const& parent_directory)
{
auto directory = adopt_ref(*new (nothrow) SysFSDisplayConnectorsDirectory(parent_directory));
auto directory = adopt_lock_ref(*new (nothrow) SysFSDisplayConnectorsDirectory(parent_directory));
s_the = directory;
return directory;
}

2
Kernel/FileSystem/SysFS/Subsystems/Devices/Graphics/DisplayConnector/Directory.h
View file

@ -20,7 +20,7 @@ class SysFSDisplayConnectorsDirectory : public SysFSDirectory {
public:
virtual StringView name() const override { return "connectors"sv; }
static SysFSDisplayConnectorsDirectory& the();
static NonnullRefPtr<SysFSDisplayConnectorsDirectory> must_create(SysFSGraphicsDirectory const&);
static NonnullLockRefPtr<SysFSDisplayConnectorsDirectory> must_create(SysFSGraphicsDirectory const&);
void plug(Badge<DisplayConnector>, DisplayConnectorSysFSDirectory&);
void unplug(Badge<DisplayConnector>, SysFSDirectory&);

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/DeviceAttribute.cpp
View file

@ -26,9 +26,9 @@ StringView StorageDeviceAttributeSysFSComponent::name() const
}
}
NonnullRefPtr<StorageDeviceAttributeSysFSComponent> StorageDeviceAttributeSysFSComponent::must_create(StorageDeviceSysFSDirectory const& device_directory, Type type)
NonnullLockRefPtr<StorageDeviceAttributeSysFSComponent> StorageDeviceAttributeSysFSComponent::must_create(StorageDeviceSysFSDirectory const& device_directory, Type type)
{
return adopt_ref(*new (nothrow) StorageDeviceAttributeSysFSComponent(device_directory, type));
return adopt_lock_ref(*new (nothrow) StorageDeviceAttributeSysFSComponent(device_directory, type));
}
StorageDeviceAttributeSysFSComponent::StorageDeviceAttributeSysFSComponent(StorageDeviceSysFSDirectory const& device_directory, Type type)

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/DeviceAttribute.h
View file

@ -21,7 +21,7 @@ public:
};
public:
static NonnullRefPtr<StorageDeviceAttributeSysFSComponent> must_create(StorageDeviceSysFSDirectory const& device_directory, Type);
static NonnullLockRefPtr<StorageDeviceAttributeSysFSComponent> must_create(StorageDeviceSysFSDirectory const& device_directory, Type);
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
virtual ~StorageDeviceAttributeSysFSComponent() {};
@ -31,7 +31,7 @@ public:
protected:
ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const;
StorageDeviceAttributeSysFSComponent(StorageDeviceSysFSDirectory const& device, Type);
NonnullRefPtr<StorageDevice> m_device;
NonnullLockRefPtr<StorageDevice> m_device;
Type const m_type { Type::EndLBA };
};

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/DeviceDirectory.cpp
View file

@ -19,12 +19,12 @@ StorageDevice const& StorageDeviceSysFSDirectory::device(Badge<StorageDeviceAttr
return *m_device;
}
UNMAP_AFTER_INIT NonnullRefPtr<StorageDeviceSysFSDirectory> StorageDeviceSysFSDirectory::create(SysFSDirectory const& parent_directory, StorageDevice const& device)
UNMAP_AFTER_INIT NonnullLockRefPtr<StorageDeviceSysFSDirectory> StorageDeviceSysFSDirectory::create(SysFSDirectory const& parent_directory, StorageDevice const& device)
{
// FIXME: Handle allocation failure gracefully
auto lun_address = device.logical_unit_number_address();
auto device_name = MUST(KString::formatted("{:02x}:{:02x}.{}", lun_address.controller_id, lun_address.target_id, lun_address.disk_id));
auto directory = adopt_ref(*new (nothrow) StorageDeviceSysFSDirectory(move(device_name), parent_directory, device));
auto directory = adopt_lock_ref(*new (nothrow) StorageDeviceSysFSDirectory(move(device_name), parent_directory, device));
MUST(directory->m_child_components.with([&](auto& list) -> ErrorOr<void> {
list.append(StorageDeviceAttributeSysFSComponent::must_create(*directory, StorageDeviceAttributeSysFSComponent::Type::EndLBA));
list.append(StorageDeviceAttributeSysFSComponent::must_create(*directory, StorageDeviceAttributeSysFSComponent::Type::SectorSize));

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/DeviceDirectory.h
View file

@ -15,7 +15,7 @@ namespace Kernel {
class StorageDeviceAttributeSysFSComponent;
class StorageDeviceSysFSDirectory final : public SysFSDirectory {
public:
static NonnullRefPtr<StorageDeviceSysFSDirectory> create(SysFSDirectory const&, StorageDevice const&);
static NonnullLockRefPtr<StorageDeviceSysFSDirectory> create(SysFSDirectory const&, StorageDevice const&);
virtual StringView name() const override { return m_device_directory_name->view(); }
@ -23,7 +23,7 @@ public:
private:
StorageDeviceSysFSDirectory(NonnullOwnPtr<KString> device_directory_name, SysFSDirectory const&, StorageDevice const&);
RefPtr<StorageDevice> m_device;
LockRefPtr<StorageDevice> m_device;
NonnullOwnPtr<KString> m_device_directory_name;
};

4
Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/Directory.cpp
View file

@ -15,9 +15,9 @@ namespace Kernel {
static SysFSStorageDirectory* s_the { nullptr };
UNMAP_AFTER_INIT NonnullRefPtr<SysFSStorageDirectory> SysFSStorageDirectory::must_create(SysFSDevicesDirectory const& parent_directory)
UNMAP_AFTER_INIT NonnullLockRefPtr<SysFSStorageDirectory> SysFSStorageDirectory::must_create(SysFSDevicesDirectory const& parent_directory)
{
auto directory = adopt_ref(*new (nothrow) SysFSStorageDirectory(parent_directory));
auto directory = adopt_lock_ref(*new (nothrow) SysFSStorageDirectory(parent_directory));
s_the = directory;
return directory;
}

2
Kernel/FileSystem/SysFS/Subsystems/Devices/Storage/Directory.h
View file

@ -19,7 +19,7 @@ class SysFSStorageDirectory : public SysFSDirectory {
public:
virtual StringView name() const override { return "storage"sv; }
static SysFSStorageDirectory& the();
static NonnullRefPtr<SysFSStorageDirectory> must_create(SysFSDevicesDirectory const&);
static NonnullLockRefPtr<SysFSStorageDirectory> must_create(SysFSDevicesDirectory const&);
void plug(Badge<StorageDevice>, StorageDeviceSysFSDirectory&);
void unplug(Badge<StorageDevice>, SysFSDirectory&);