81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
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// Copyright 2020 yuzu 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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// This file references various implementation details from Atmosphere, an open-source firmware for
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// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
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#pragma once
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#include <array>
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#include "common/common_types.h"
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#include "core/hle/kernel/k_light_condition_variable.h"
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#include "core/hle/kernel/k_light_lock.h"
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#include "core/hle/kernel/object.h"
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union ResultCode;
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namespace Core {
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class System;
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}
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namespace Kernel {
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class KernelCore;
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enum class LimitableResource : u32 {
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PhysicalMemoryMax = 0,
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ThreadCountMax = 1,
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EventCountMax = 2,
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TransferMemoryCountMax = 3,
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SessionCountMax = 4,
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Count,
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};
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constexpr bool IsValidResourceType(LimitableResource type) {
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return type < LimitableResource::Count;
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}
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class KResourceLimit final : public Object {
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public:
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KResourceLimit(KernelCore& kernel, Core::System& system);
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~KResourceLimit();
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s64 GetLimitValue(LimitableResource which) const;
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s64 GetCurrentValue(LimitableResource which) const;
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s64 GetPeakValue(LimitableResource which) const;
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s64 GetFreeValue(LimitableResource which) const;
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ResultCode SetLimitValue(LimitableResource which, s64 value);
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bool Reserve(LimitableResource which, s64 value);
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bool Reserve(LimitableResource which, s64 value, s64 timeout);
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void Release(LimitableResource which, s64 value);
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void Release(LimitableResource which, s64 value, s64 hint);
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std::string GetTypeName() const override {
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return "KResourceLimit";
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}
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std::string GetName() const override {
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return GetTypeName();
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}
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static constexpr HandleType HANDLE_TYPE = HandleType::ResourceLimit;
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HandleType GetHandleType() const override {
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return HANDLE_TYPE;
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}
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virtual void Finalize() override {}
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private:
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std::array<s64, static_cast<std::size_t>(LimitableResource::Count)> limit_values{};
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std::array<s64, static_cast<std::size_t>(LimitableResource::Count)> current_values{};
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std::array<s64, static_cast<std::size_t>(LimitableResource::Count)> current_hints{};
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std::array<s64, static_cast<std::size_t>(LimitableResource::Count)> peak_values{};
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mutable KLightLock m_lock;
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s32 waiter_count{};
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KLightConditionVariable cond_var;
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KernelCore& kernel;
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Core::System& system;
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};
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} // namespace Kernel
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