1234567891011121314151617181920212223242526272829303132333435363738394041424344 |
- /*
- * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #include <AK/Singleton.h>
- #include <Kernel/Memory/MemoryManager.h>
- #include <Kernel/Memory/VMObject.h>
- namespace Kernel::Memory {
- static Singleton<SpinLockProtectedValue<VMObject::AllInstancesList>> s_all_instances;
- SpinLockProtectedValue<VMObject::AllInstancesList>& VMObject::all_instances()
- {
- return s_all_instances;
- }
- VMObject::VMObject(VMObject const& other)
- : m_physical_pages(other.m_physical_pages)
- {
- all_instances().with([&](auto& list) { list.append(*this); });
- }
- VMObject::VMObject(size_t size)
- : m_physical_pages(ceil_div(size, static_cast<size_t>(PAGE_SIZE)))
- {
- all_instances().with([&](auto& list) { list.append(*this); });
- }
- VMObject::~VMObject()
- {
- {
- ScopedSpinLock lock(m_on_deleted_lock);
- for (auto& it : m_on_deleted)
- it->vmobject_deleted(*this);
- m_on_deleted.clear();
- }
- VERIFY(m_regions.is_empty());
- }
- }
|