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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
// This file references various implementation details from Atmosphere, an open-source firmware for
// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
#pragma once
#include <array>
#include "common/common_types.h"
#include "core/hle/kernel/k_light_condition_variable.h"
#include "core/hle/kernel/k_light_lock.h"
#include "core/hle/kernel/object.h"
union ResultCode;
namespace Core {
class System;
}
namespace Kernel {
class KernelCore;
enum class LimitableResource : u32 {
PhysicalMemoryMax = 0,
ThreadCountMax = 1,
EventCountMax = 2,
TransferMemoryCountMax = 3,
SessionCountMax = 4,
Count,
};
constexpr bool IsValidResourceType(LimitableResource type) {
return type < LimitableResource::Count;
}
class KResourceLimit final : public Object {
public:
KResourceLimit(KernelCore& kernel, Core::System& system);
~KResourceLimit();
s64 GetLimitValue(LimitableResource which) const;
s64 GetCurrentValue(LimitableResource which) const;
s64 GetPeakValue(LimitableResource which) const;
s64 GetFreeValue(LimitableResource which) const;
ResultCode SetLimitValue(LimitableResource which, s64 value);
bool Reserve(LimitableResource which, s64 value);
bool Reserve(LimitableResource which, s64 value, s64 timeout);
void Release(LimitableResource which, s64 value);
void Release(LimitableResource which, s64 value, s64 hint);
std::string GetTypeName() const override {
return "KResourceLimit";
}
std::string GetName() const override {
return GetTypeName();
}
static constexpr HandleType HANDLE_TYPE = HandleType::ResourceLimit;
HandleType GetHandleType() const override {
return HANDLE_TYPE;
}
virtual void Finalize() override {}
private:
std::array<s64, static_cast<std::size_t>(LimitableResource::Count)> limit_values{};
std::array<s64, static_cast<std::size_t>(LimitableResource::Count)> current_values{};
std::array<s64, static_cast<std::size_t>(LimitableResource::Count)> current_hints{};
std::array<s64, static_cast<std::size_t>(LimitableResource::Count)> peak_values{};
mutable KLightLock lock;
s32 waiter_count{};
KLightConditionVariable cond_var;
KernelCore& kernel;
Core::System& system;
};
} // namespace Kernel
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