forked from suyu/suyu
59 lines
1.5 KiB
C++
59 lines
1.5 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_scheduler.h"
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#include "core/hle/kernel/k_thread.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/result.h"
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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 KConditionVariable {
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public:
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using ThreadTree = typename KThread::ConditionVariableThreadTreeType;
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explicit KConditionVariable(Core::System& system_);
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~KConditionVariable();
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// Arbitration
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[[nodiscard]] ResultCode SignalToAddress(VAddr addr);
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[[nodiscard]] ResultCode WaitForAddress(Handle handle, VAddr addr, u32 value);
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// Condition variable
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void Signal(u64 cv_key, s32 count);
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[[nodiscard]] ResultCode Wait(VAddr addr, u64 key, u32 value, s64 timeout);
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private:
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[[nodiscard]] KThread* SignalImpl(KThread* thread);
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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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inline void BeforeUpdatePriority(const KernelCore& kernel, KConditionVariable::ThreadTree* tree,
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KThread* thread) {
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ASSERT(kernel.GlobalSchedulerContext().IsLocked());
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tree->erase(tree->iterator_to(*thread));
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}
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inline void AfterUpdatePriority(const KernelCore& kernel, KConditionVariable::ThreadTree* tree,
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KThread* thread) {
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ASSERT(kernel.GlobalSchedulerContext().IsLocked());
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tree->insert(*thread);
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}
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} // namespace Kernel
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