forked from suyu/suyu
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
// Copyright 2021 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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#pragma once
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "core/hle/kernel/k_condition_variable.h"
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#include "core/hle/kernel/svc_types.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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class KAddressArbiter {
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public:
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using ThreadTree = KConditionVariable::ThreadTree;
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explicit KAddressArbiter(Core::System& system_);
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~KAddressArbiter();
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[[nodiscard]] ResultCode SignalToAddress(VAddr addr, Svc::SignalType type, s32 value,
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s32 count) {
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switch (type) {
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case Svc::SignalType::Signal:
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return Signal(addr, count);
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case Svc::SignalType::SignalAndIncrementIfEqual:
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return SignalAndIncrementIfEqual(addr, value, count);
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case Svc::SignalType::SignalAndModifyByWaitingCountIfEqual:
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return SignalAndModifyByWaitingCountIfEqual(addr, value, count);
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}
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UNREACHABLE();
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return RESULT_UNKNOWN;
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}
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[[nodiscard]] ResultCode WaitForAddress(VAddr addr, Svc::ArbitrationType type, s32 value,
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s64 timeout) {
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switch (type) {
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case Svc::ArbitrationType::WaitIfLessThan:
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return WaitIfLessThan(addr, value, false, timeout);
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case Svc::ArbitrationType::DecrementAndWaitIfLessThan:
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return WaitIfLessThan(addr, value, true, timeout);
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case Svc::ArbitrationType::WaitIfEqual:
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return WaitIfEqual(addr, value, timeout);
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}
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UNREACHABLE();
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return RESULT_UNKNOWN;
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}
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private:
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[[nodiscard]] ResultCode Signal(VAddr addr, s32 count);
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[[nodiscard]] ResultCode SignalAndIncrementIfEqual(VAddr addr, s32 value, s32 count);
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[[nodiscard]] ResultCode SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32 value, s32 count);
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[[nodiscard]] ResultCode WaitIfLessThan(VAddr addr, s32 value, bool decrement, s64 timeout);
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[[nodiscard]] ResultCode WaitIfEqual(VAddr addr, s32 value, s64 timeout);
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ThreadTree thread_tree;
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Core::System& system;
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KernelCore& kernel;
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};
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} // namespace Kernel
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