forked from suyu/suyu
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
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// Copyright 2018 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <map>
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#include "common/common_types.h"
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#include "core/hle/kernel/kernel.h"
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namespace Kernel {
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/**
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* This class is used to keep a table of Kernel objects and their respective addresses in emulated
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* memory. For certain Switch SVCs, Kernel objects are referenced by an address to an object the
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* guest application manages, so we use this table to look these kernel objects up. This is similiar
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* to the HandleTable class.
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*/
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class ObjectAddressTable final : NonCopyable {
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public:
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ObjectAddressTable() = default;
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/**
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* Inserts an object and address pair into the table.
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*/
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void Insert(VAddr addr, SharedPtr<Object> obj);
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/**
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* Closes an object by its address, removing it from the table and decreasing the object's
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* ref-count.
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* @return `RESULT_SUCCESS` or one of the following errors:
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* - `ERR_INVALID_HANDLE`: an invalid handle was passed in.
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*/
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void Close(VAddr addr);
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/**
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* Looks up an object by its address.
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* @return Pointer to the looked-up object, or `nullptr` if the handle is not valid.
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*/
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SharedPtr<Object> GetGeneric(VAddr addr) const;
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/**
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* Looks up an object by its address while verifying its type.
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* @return Pointer to the looked-up object, or `nullptr` if the handle is not valid or its
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* type differs from the requested one.
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*/
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template <class T>
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SharedPtr<T> Get(VAddr addr) const {
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return DynamicObjectCast<T>(GetGeneric(addr));
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}
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/// Closes all addresses held in this table.
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void Clear();
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private:
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/// Stores the Object referenced by the address
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std::map<VAddr, SharedPtr<Object>> objects;
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};
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extern ObjectAddressTable g_object_address_table;
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} // namespace Kernel
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