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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
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24
Kernel/ProcessExposed.h
View file

@ -9,12 +9,12 @@
#include <AK/AtomicRefCounted.h>
#include <AK/Error.h>
#include <AK/Function.h>
#include <AK/RefPtr.h>
#include <AK/Types.h>
#include <Kernel/FileSystem/File.h>
#include <Kernel/FileSystem/FileSystem.h>
#include <Kernel/FileSystem/OpenFileDescription.h>
#include <Kernel/KBufferBuilder.h>
#include <Kernel/Library/LockRefPtr.h>
#include <Kernel/Time/TimeManagement.h>
#include <Kernel/UserOrKernelBuffer.h>
@ -63,7 +63,7 @@ public:
private:
Mutex m_lock;
NonnullRefPtr<ProcFSRootDirectory> m_root_directory;
NonnullLockRefPtr<ProcFSRootDirectory> m_root_directory;
};
class ProcFSExposedComponent : public AtomicRefCounted<ProcFSExposedComponent> {
@ -71,7 +71,7 @@ public:
StringView name() const { return m_name->view(); }
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const { VERIFY_NOT_REACHED(); }
virtual ErrorOr<void> traverse_as_directory(FileSystemID, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const { VERIFY_NOT_REACHED(); }
virtual ErrorOr<NonnullRefPtr<ProcFSExposedComponent>> lookup(StringView) { VERIFY_NOT_REACHED(); };
virtual ErrorOr<NonnullLockRefPtr<ProcFSExposedComponent>> lookup(StringView) { VERIFY_NOT_REACHED(); };
virtual ErrorOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const&, OpenFileDescription*) { return EROFS; }
virtual ErrorOr<void> truncate(u64) { return EPERM; }
virtual ErrorOr<void> set_mtime(time_t) { return ENOTIMPL; }
@ -87,7 +87,7 @@ public:
return {};
}
virtual ErrorOr<NonnullRefPtr<Inode>> to_inode(ProcFS const& procfs_instance) const;
virtual ErrorOr<NonnullLockRefPtr<Inode>> to_inode(ProcFS const& procfs_instance) const;
virtual InodeIndex component_index() const { return m_component_index; }
@ -104,12 +104,12 @@ private:
class ProcFSExposedDirectory
: public ProcFSExposedComponent
, public Weakable<ProcFSExposedDirectory> {
, public LockWeakable<ProcFSExposedDirectory> {
friend class ProcFSComponentRegistry;
public:
virtual ErrorOr<void> traverse_as_directory(FileSystemID, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<NonnullRefPtr<ProcFSExposedComponent>> lookup(StringView name) override;
virtual ErrorOr<NonnullLockRefPtr<ProcFSExposedComponent>> lookup(StringView name) override;
void add_component(ProcFSExposedComponent const&);
virtual void prepare_for_deletion() override
@ -120,18 +120,18 @@ public:
}
virtual mode_t required_mode() const override { return 0555; }
virtual ErrorOr<NonnullRefPtr<Inode>> to_inode(ProcFS const& procfs_instance) const override final;
virtual ErrorOr<NonnullLockRefPtr<Inode>> to_inode(ProcFS const& procfs_instance) const override final;
protected:
explicit ProcFSExposedDirectory(StringView name);
ProcFSExposedDirectory(StringView name, ProcFSExposedDirectory const& parent_directory);
NonnullRefPtrVector<ProcFSExposedComponent> m_components;
WeakPtr<ProcFSExposedDirectory> m_parent_directory;
NonnullLockRefPtrVector<ProcFSExposedComponent> m_components;
LockWeakPtr<ProcFSExposedDirectory> m_parent_directory;
};
class ProcFSExposedLink : public ProcFSExposedComponent {
public:
virtual ErrorOr<NonnullRefPtr<Inode>> to_inode(ProcFS const& procfs_instance) const override final;
virtual ErrorOr<NonnullLockRefPtr<Inode>> to_inode(ProcFS const& procfs_instance) const override final;
virtual ErrorOr<size_t> read_bytes(off_t offset, size_t count, UserOrKernelBuffer& buffer, OpenFileDescription* description) const override;
@ -149,8 +149,8 @@ class ProcFSRootDirectory final : public ProcFSExposedDirectory {
friend class ProcFSComponentRegistry;
public:
virtual ErrorOr<NonnullRefPtr<ProcFSExposedComponent>> lookup(StringView name) override;
static NonnullRefPtr<ProcFSRootDirectory> must_create();
virtual ErrorOr<NonnullLockRefPtr<ProcFSExposedComponent>> lookup(StringView name) override;
static NonnullLockRefPtr<ProcFSRootDirectory> must_create();
virtual ~ProcFSRootDirectory();