1 files changed, 148 insertions, 0 deletions
diff --git a/src/core/hle/kernel/slab_helpers.h b/src/core/hle/kernel/slab_helpers.h
new file mode 100644
index 000000000..0c5995db0
--- /dev/null
+++ b/src/core/hle/kernel/slab_helpers.h
@@ -0,0 +1,148 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <atomic>
+
+#include "common/assert.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/intrusive_red_black_tree.h"
+#include "core/hle/kernel/k_auto_object.h"
+#include "core/hle/kernel/k_auto_object_container.h"
+#include "core/hle/kernel/k_light_lock.h"
+#include "core/hle/kernel/k_slab_heap.h"
+#include "core/hle/kernel/kernel.h"
+
+namespace Kernel {
+
+template <class Derived>
+class KSlabAllocated {
+public:
+    constexpr KSlabAllocated() = default;
+
+    size_t GetSlabIndex(KernelCore& kernel) const {
+        return kernel.SlabHeap<Derived>().GetIndex(static_cast<const Derived*>(this));
+    }
+
+public:
+    static void InitializeSlabHeap(KernelCore& kernel, void* memory, size_t memory_size) {
+        kernel.SlabHeap<Derived>().Initialize(memory, memory_size);
+    }
+
+    static Derived* Allocate(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().Allocate();
+    }
+
+    static void Free(KernelCore& kernel, Derived* obj) {
+        kernel.SlabHeap<Derived>().Free(obj);
+    }
+
+    static size_t GetObjectSize(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetObjectSize();
+    }
+
+    static size_t GetSlabHeapSize(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetSlabHeapSize();
+    }
+
+    static size_t GetPeakIndex(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetPeakIndex();
+    }
+
+    static uintptr_t GetSlabHeapAddress(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetSlabHeapAddress();
+    }
+
+    static size_t GetNumRemaining(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetNumRemaining();
+    }
+};
+
+template <typename Derived, typename Base>
+class KAutoObjectWithSlabHeapAndContainer : public Base {
+    static_assert(std::is_base_of<KAutoObjectWithList, Base>::value);
+
+private:
+    static Derived* Allocate(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().AllocateWithKernel(kernel);
+    }
+
+    static void Free(KernelCore& kernel, Derived* obj) {
+        kernel.SlabHeap<Derived>().Free(obj);
+    }
+
+public:
+    KAutoObjectWithSlabHeapAndContainer(KernelCore& kernel_) : Base(kernel_), kernel(kernel_) {}
+    virtual ~KAutoObjectWithSlabHeapAndContainer() {}
+
+    virtual void Destroy() override {
+        const bool is_initialized = this->IsInitialized();
+        uintptr_t arg = 0;
+        if (is_initialized) {
+            kernel.ObjectListContainer().Unregister(this);
+            arg = this->GetPostDestroyArgument();
+            this->Finalize();
+        }
+        Free(kernel, static_cast<Derived*>(this));
+        if (is_initialized) {
+            Derived::PostDestroy(arg);
+        }
+    }
+
+    virtual bool IsInitialized() const {
+        return true;
+    }
+    virtual uintptr_t GetPostDestroyArgument() const {
+        return 0;
+    }
+
+    size_t GetSlabIndex() const {
+        return SlabHeap<Derived>(kernel).GetObjectIndex(static_cast<const Derived*>(this));
+    }
+
+public:
+    static void InitializeSlabHeap(KernelCore& kernel, void* memory, size_t memory_size) {
+        kernel.SlabHeap<Derived>().Initialize(memory, memory_size);
+        kernel.ObjectListContainer().Initialize();
+    }
+
+    static Derived* Create(KernelCore& kernel) {
+        Derived* obj = Allocate(kernel);
+        if (obj != nullptr) {
+            KAutoObject::Create(obj);
+        }
+        return obj;
+    }
+
+    static void Register(KernelCore& kernel, Derived* obj) {
+        return kernel.ObjectListContainer().Register(obj);
+    }
+
+    static size_t GetObjectSize(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetObjectSize();
+    }
+
+    static size_t GetSlabHeapSize(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetSlabHeapSize();
+    }
+
+    static size_t GetPeakIndex(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetPeakIndex();
+    }
+
+    static uintptr_t GetSlabHeapAddress(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetSlabHeapAddress();
+    }
+
+    static size_t GetNumRemaining(KernelCore& kernel) {
+        return kernel.SlabHeap<Derived>().GetNumRemaining();
+    }
+
+protected:
+    KernelCore& kernel;
+};
+
+} // namespace Kernel