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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <atomic>
#include <functional>
#include <memory>
#include <thread>
#include "core/hardware_properties.h"
namespace Common {
class Event;
class Fiber;
} // namespace Common
namespace Core {
class System;
class CpuManager {
public:
explicit CpuManager(System& system);
CpuManager(const CpuManager&) = delete;
CpuManager(CpuManager&&) = delete;
~CpuManager();
CpuManager& operator=(const CpuManager&) = delete;
CpuManager& operator=(CpuManager&&) = delete;
/// Sets if emulation is multicore or single core, must be set before Initialize
void SetMulticore(bool is_multicore) {
this->is_multicore = is_multicore;
}
void Initialize();
void Shutdown();
void Pause(bool paused);
std::function<void(void*)> GetGuestThreadStartFunc();
std::function<void(void*)> GetIdleThreadStartFunc();
std::function<void(void*)> GetSuspendThreadStartFunc();
void* GetStartFuncParamater();
std::size_t CurrentCore() const {
return current_core.load();
}
private:
static void GuestThreadFunction(void* cpu_manager);
static void GuestRewindFunction(void* cpu_manager);
static void IdleThreadFunction(void* cpu_manager);
static void SuspendThreadFunction(void* cpu_manager);
void MultiCoreRunGuestThread();
void MultiCoreRunGuestLoop();
void MultiCoreRunIdleThread();
void MultiCoreRunSuspendThread();
void MultiCorePause(bool paused);
void SingleCoreRunGuestThread();
void SingleCoreRunGuestLoop();
void SingleCoreRunIdleThread();
void SingleCoreRunSuspendThread();
void SingleCorePause(bool paused);
static void ThreadStart(CpuManager& cpu_manager, std::size_t core);
void RunThread(std::size_t core);
void PreemptSingleCore();
struct CoreData {
std::shared_ptr<Common::Fiber> host_context;
std::unique_ptr<Common::Event> enter_barrier;
std::unique_ptr<Common::Event> exit_barrier;
std::atomic<bool> is_running;
std::atomic<bool> is_paused;
std::atomic<bool> initialized;
std::unique_ptr<std::thread> host_thread;
};
std::atomic<bool> running_mode{};
std::atomic<bool> paused_state{};
std::array<CoreData, Core::Hardware::NUM_CPU_CORES> core_data{};
bool is_multicore{};
std::atomic<std::size_t> current_core{};
std::size_t preemption_count{};
static constexpr std::size_t max_cycle_runs = 5;
System& system;
};
} // namespace Core
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