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// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include "common/assert.h"
#include "common/common_types.h"
#include "core/hle/kernel/k_condition_variable.h"
#include "core/hle/kernel/svc_types.h"
union Result;
namespace Core {
class System;
}
namespace Kernel {
class KernelCore;
class KAddressArbiter {
public:
using ThreadTree = KConditionVariable::ThreadTree;
explicit KAddressArbiter(Core::System& system_);
~KAddressArbiter();
[[nodiscard]] Result SignalToAddress(VAddr addr, Svc::SignalType type, s32 value, s32 count) {
switch (type) {
case Svc::SignalType::Signal:
return Signal(addr, count);
case Svc::SignalType::SignalAndIncrementIfEqual:
return SignalAndIncrementIfEqual(addr, value, count);
case Svc::SignalType::SignalAndModifyByWaitingCountIfEqual:
return SignalAndModifyByWaitingCountIfEqual(addr, value, count);
}
ASSERT(false);
return ResultUnknown;
}
[[nodiscard]] Result WaitForAddress(VAddr addr, Svc::ArbitrationType type, s32 value,
s64 timeout) {
switch (type) {
case Svc::ArbitrationType::WaitIfLessThan:
return WaitIfLessThan(addr, value, false, timeout);
case Svc::ArbitrationType::DecrementAndWaitIfLessThan:
return WaitIfLessThan(addr, value, true, timeout);
case Svc::ArbitrationType::WaitIfEqual:
return WaitIfEqual(addr, value, timeout);
}
ASSERT(false);
return ResultUnknown;
}
private:
[[nodiscard]] Result Signal(VAddr addr, s32 count);
[[nodiscard]] Result SignalAndIncrementIfEqual(VAddr addr, s32 value, s32 count);
[[nodiscard]] Result SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32 value, s32 count);
[[nodiscard]] Result WaitIfLessThan(VAddr addr, s32 value, bool decrement, s64 timeout);
[[nodiscard]] Result WaitIfEqual(VAddr addr, s32 value, s64 timeout);
ThreadTree thread_tree;
Core::System& system;
KernelCore& kernel;
};
} // namespace Kernel
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