mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-05 07:49:09 +00:00
121 lines
4.6 KiB
C++
121 lines
4.6 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <mesosphere/kern_common.hpp>
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#include <mesosphere/kern_k_auto_object.hpp>
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#include <mesosphere/kern_k_slab_heap.hpp>
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#include <mesosphere/kern_k_auto_object_container.hpp>
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namespace ams::kern {
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template<class Derived>
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class KSlabAllocated {
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private:
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static inline KSlabHeap<Derived> s_slab_heap;
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public:
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constexpr KSlabAllocated() { /* ... */ }
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size_t GetSlabIndex() const {
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return s_slab_heap.GetIndex(static_cast<const Derived *>(this));
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}
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public:
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static void InitializeSlabHeap(void *memory, size_t memory_size) {
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s_slab_heap.Initialize(memory, memory_size);
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}
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static ALWAYS_INLINE Derived *Allocate() {
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return s_slab_heap.Allocate();
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}
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static ALWAYS_INLINE void Free(Derived *obj) {
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s_slab_heap.Free(obj);
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}
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static size_t GetObjectSize() { return s_slab_heap.GetObjectSize(); }
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static size_t GetSlabHeapSize() { return s_slab_heap.GetSlabHeapSize(); }
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static size_t GetPeakIndex() { return s_slab_heap.GetPeakIndex(); }
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static uintptr_t GetSlabHeapAddress() { return s_slab_heap.GetSlabHeapAddress(); }
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};
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template<typename Derived, typename Base>
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class KAutoObjectWithSlabHeapAndContainer : public Base {
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static_assert(std::is_base_of<KAutoObjectWithList, Base>::value);
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private:
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static inline KSlabHeap<Derived> s_slab_heap;
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static inline KAutoObjectWithListContainer s_container;
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private:
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static ALWAYS_INLINE Derived *Allocate() {
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return s_slab_heap.Allocate();
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}
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static ALWAYS_INLINE void Free(Derived *obj) {
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s_slab_heap.Free(obj);
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}
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public:
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class ListAccessor : public KAutoObjectWithListContainer::ListAccessor {
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public:
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ALWAYS_INLINE ListAccessor() : KAutoObjectWithListContainer::ListAccessor(s_container) { /* ... */ }
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ALWAYS_INLINE ~ListAccessor() { /* ... */ }
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};
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public:
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constexpr KAutoObjectWithSlabHeapAndContainer() : Base() { /* ... */ }
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virtual ~KAutoObjectWithSlabHeapAndContainer() { /* ... */ }
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virtual void Destroy() override {
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const bool is_initialized = this->IsInitialized();
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uintptr_t arg = 0;
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if (is_initialized) {
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s_container.Unregister(this);
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arg = this->GetPostDestroyArgument();
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this->Finalize();
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}
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Free(static_cast<Derived *>(this));
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if (is_initialized) {
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Derived::PostDestroy(arg);
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}
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}
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virtual bool IsInitialized() const { return true; }
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virtual uintptr_t GetPostDestroyArgument() const { return 0; }
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size_t GetSlabIndex() const {
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return s_slab_heap.GetIndex(static_cast<const Derived *>(this));
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}
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public:
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static void InitializeSlabHeap(void *memory, size_t memory_size) {
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s_slab_heap.Initialize(memory, memory_size);
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s_container.Initialize();
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}
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static Derived *Create() {
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Derived *obj = Allocate();
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if (AMS_LIKELY(obj != nullptr)) {
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KAutoObject::Create(obj);
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}
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return obj;
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}
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static Result Register(Derived *obj) {
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return s_container.Register(obj);
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}
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static size_t GetObjectSize() { return s_slab_heap.GetObjectSize(); }
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static size_t GetSlabHeapSize() { return s_slab_heap.GetSlabHeapSize(); }
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static size_t GetPeakIndex() { return s_slab_heap.GetPeakIndex(); }
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static uintptr_t GetSlabHeapAddress() { return s_slab_heap.GetSlabHeapAddress(); }
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};
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}
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