108 lines
2.7 KiB
C++
108 lines
2.7 KiB
C++
// Copyright 2015 Citra 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/common_types.h"
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#include "core/core_timing.h"
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#include "core/hle/kernel/object.h"
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#include "core/hle/kernel/wait_object.h"
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namespace Core {
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class Timing;
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}
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namespace Kernel {
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class TimerManager {
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public:
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TimerManager(Core::Timing& timing);
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private:
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/// The timer callback event, called when a timer is fired
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void TimerCallback(u64 callback_id, s64 cycles_late);
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Core::Timing& timing;
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/// The event type of the generic timer callback event
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Core::TimingEventType* timer_callback_event_type = nullptr;
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u64 next_timer_callback_id = 0;
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std::unordered_map<u64, Timer*> timer_callback_table;
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friend class Timer;
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friend class KernelSystem;
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};
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class Timer final : public WaitObject {
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public:
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std::string GetTypeName() const override {
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return "Timer";
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}
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std::string GetName() const override {
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return name;
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}
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static const HandleType HANDLE_TYPE = HandleType::Timer;
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HandleType GetHandleType() const override {
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return HANDLE_TYPE;
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}
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ResetType GetResetType() const {
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return reset_type;
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}
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u64 GetInitialDelay() const {
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return initial_delay;
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}
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u64 GetIntervalDelay() const {
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return interval_delay;
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}
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bool ShouldWait(Thread* thread) const override;
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void Acquire(Thread* thread) override;
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void WakeupAllWaitingThreads() override;
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/**
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* Starts the timer, with the specified initial delay and interval.
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* @param initial Delay until the timer is first fired
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* @param interval Delay until the timer is fired after the first time
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*/
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void Set(s64 initial, s64 interval);
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void Cancel();
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void Clear();
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/**
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* Signals the timer, waking up any waiting threads and rescheduling it
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* for the next interval.
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* This method should not be called from outside the timer callback handler,
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* lest multiple callback events get scheduled.
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*/
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void Signal(s64 cycles_late);
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private:
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explicit Timer(KernelSystem& kernel);
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~Timer() override;
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ResetType reset_type; ///< The ResetType of this timer
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u64 initial_delay; ///< The delay until the timer fires for the first time
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u64 interval_delay; ///< The delay until the timer fires after the first time
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bool signaled; ///< Whether the timer has been signaled or not
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std::string name; ///< Name of timer (optional)
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/// ID used as userdata to reference this object when inserting into the CoreTiming queue.
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u64 callback_id;
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KernelSystem& kernel;
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TimerManager& timer_manager;
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friend class KernelSystem;
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};
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} // namespace Kernel
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