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Kernel: Split VMObject into two classes: Anonymous- and InodeVMObject

InodeVMObject is a VMObject with an underlying Inode in the filesystem.
AnonymousVMObject has no Inode.

I'm happy that InodeVMObject::inode() can now return Inode& instead of
VMObject::inode() return Inode*. :^)
This commit is contained in:
Andreas Kling 2019-08-07 18:06:17 +02:00
parent cb2d572a14
commit 6bdb81ad87
16 changed files with 286 additions and 200 deletions

View file

@ -0,0 +1,24 @@
#pragma once
#include <Kernel/VM/PhysicalAddress.h>
#include <Kernel/VM/VMObject.h>
class AnonymousVMObject final : public VMObject {
public:
virtual ~AnonymousVMObject() override;
static NonnullRefPtr<AnonymousVMObject> create_with_size(size_t);
static NonnullRefPtr<AnonymousVMObject> create_for_physical_range(PhysicalAddress, size_t);
virtual NonnullRefPtr<VMObject> clone() override;
private:
explicit AnonymousVMObject(size_t);
explicit AnonymousVMObject(const AnonymousVMObject&);
AnonymousVMObject(PhysicalAddress, size_t);
AnonymousVMObject& operator=(const AnonymousVMObject&) = delete;
AnonymousVMObject& operator=(AnonymousVMObject&&) = delete;
AnonymousVMObject(AnonymousVMObject&&) = delete;
virtual bool is_anonymous() const override { return true; }
};