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Kernel: Convert Timer to (mostly) not use Handles
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parent
882b6fed75
commit
ad80ff1e32
3 changed files with 110 additions and 109 deletions
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@ -13,75 +13,54 @@
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namespace Kernel {
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class Timer : public WaitObject {
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public:
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std::string GetTypeName() const override { return "Timer"; }
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std::string GetName() const override { return name; }
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/// The event type of the generic timer callback event
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static int timer_callback_event_type = -1;
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static const HandleType HANDLE_TYPE = HandleType::Timer;
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HandleType GetHandleType() const override { return HANDLE_TYPE; }
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ResetType reset_type; ///< The ResetType of this timer
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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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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 ShouldWait() override {
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return !signaled;
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}
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void Acquire() override {
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_assert_msg_(Kernel, !ShouldWait(), "object unavailable!");
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}
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};
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/**
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* Creates a timer.
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* @param handle Reference to handle for the newly created timer
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* @param reset_type ResetType describing how to create timer
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* @param name Optional name of timer
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* @return Newly created Timer object
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*/
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static Timer* CreateTimer(Handle& handle, const ResetType reset_type, const std::string& name) {
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Timer* timer = new Timer;
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handle = Kernel::g_handle_table.Create(timer).ValueOr(INVALID_HANDLE);
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ResultVal<SharedPtr<Timer>> Timer::Create(ResetType reset_type, std::string name) {
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SharedPtr<Timer> timer(new Timer);
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// TOOD(yuriks): Don't create Handle (see Thread::Create())
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CASCADE_RESULT(auto unused, Kernel::g_handle_table.Create(timer));
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timer->reset_type = reset_type;
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timer->signaled = false;
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timer->name = name;
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timer->name = std::move(name);
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timer->initial_delay = 0;
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timer->interval_delay = 0;
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return timer;
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return MakeResult<SharedPtr<Timer>>(timer);
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}
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ResultCode CreateTimer(Handle* handle, const ResetType reset_type, const std::string& name) {
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CreateTimer(*handle, reset_type, name);
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return RESULT_SUCCESS;
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bool Timer::ShouldWait() {
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return !signaled;
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}
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ResultCode ClearTimer(Handle handle) {
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SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
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if (timer == nullptr)
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return InvalidHandle(ErrorModule::Kernel);
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timer->signaled = false;
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return RESULT_SUCCESS;
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void Timer::Acquire() {
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_assert_msg_(Kernel, !ShouldWait(), "object unavailable!");
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}
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/// The event type of the generic timer callback event
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static int TimerCallbackEventType = -1;
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void Timer::Set(s64 initial, s64 interval) {
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initial_delay = initial;
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interval_delay = interval;
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u64 initial_microseconds = initial / 1000;
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// TODO(yuriks): Figure out a replacement for GetHandle here
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CoreTiming::ScheduleEvent(usToCycles(initial_microseconds), timer_callback_event_type,
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GetHandle());
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}
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void Timer::Cancel() {
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CoreTiming::UnscheduleEvent(timer_callback_event_type, GetHandle());
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}
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void Timer::Clear() {
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signaled = false;
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}
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/// The timer callback event, called when a timer is fired
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static void TimerCallback(u64 timer_handle, int cycles_late) {
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SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(timer_handle);
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if (timer == nullptr) {
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LOG_CRITICAL(Kernel, "Callback fired for invalid timer %u", timer_handle);
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LOG_CRITICAL(Kernel, "Callback fired for invalid timer %08X", timer_handle);
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return;
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}
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@ -99,36 +78,12 @@ static void TimerCallback(u64 timer_handle, int cycles_late) {
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// Reschedule the timer with the interval delay
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u64 interval_microseconds = timer->interval_delay / 1000;
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CoreTiming::ScheduleEvent(usToCycles(interval_microseconds) - cycles_late,
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TimerCallbackEventType, timer_handle);
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timer_callback_event_type, timer_handle);
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}
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}
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ResultCode SetTimer(Handle handle, s64 initial, s64 interval) {
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SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
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if (timer == nullptr)
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return InvalidHandle(ErrorModule::Kernel);
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timer->initial_delay = initial;
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timer->interval_delay = interval;
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u64 initial_microseconds = initial / 1000;
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CoreTiming::ScheduleEvent(usToCycles(initial_microseconds), TimerCallbackEventType, handle);
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return RESULT_SUCCESS;
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}
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ResultCode CancelTimer(Handle handle) {
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SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
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if (timer == nullptr)
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return InvalidHandle(ErrorModule::Kernel);
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CoreTiming::UnscheduleEvent(TimerCallbackEventType, handle);
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return RESULT_SUCCESS;
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}
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void TimersInit() {
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TimerCallbackEventType = CoreTiming::RegisterEvent("TimerCallback", TimerCallback);
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timer_callback_event_type = CoreTiming::RegisterEvent("TimerCallback", TimerCallback);
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}
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void TimersShutdown() {
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@ -11,37 +11,50 @@
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namespace Kernel {
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/**
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* Cancels a timer
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* @param handle Handle of the timer to cancel
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*/
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ResultCode CancelTimer(Handle handle);
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class Timer : public WaitObject {
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public:
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/**
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* Creates a timer
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* @param reset_type ResetType describing how to create the timer
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* @param name Optional name of timer
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* @return The created Timer
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*/
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static ResultVal<SharedPtr<Timer>> Create(ResetType reset_type, std::string name = "Unknown");
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/**
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* Starts a timer with the specified initial delay and interval
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* @param handle Handle of the timer to start
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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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ResultCode SetTimer(Handle handle, s64 initial, s64 interval);
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std::string GetTypeName() const override { return "Timer"; }
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std::string GetName() const override { return name; }
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/**
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* Clears a timer
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* @param handle Handle of the timer to clear
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*/
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ResultCode ClearTimer(Handle handle);
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static const HandleType HANDLE_TYPE = HandleType::Timer;
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HandleType GetHandleType() const override { return HANDLE_TYPE; }
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/**
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* Creates a timer
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* @param handle Handle to the newly created Timer object
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* @param reset_type ResetType describing how to create the timer
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* @param name Optional name of timer
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* @return ResultCode of the error
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*/
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ResultCode CreateTimer(Handle* handle, const ResetType reset_type, const std::string& name="Unknown");
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ResetType reset_type; ///< The ResetType of this timer
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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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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 ShouldWait() override;
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void Acquire() 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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private:
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Timer() = default;
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};
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/// Initializes the required variables for timers
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void TimersInit();
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/// Tears down the timer variables
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void TimersShutdown();
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} // namespace
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@ -479,28 +479,61 @@ static Result ClearEvent(Handle evt) {
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/// Creates a timer
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static Result CreateTimer(Handle* handle, u32 reset_type) {
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ResultCode res = Kernel::CreateTimer(handle, static_cast<ResetType>(reset_type));
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LOG_TRACE(Kernel_SVC, "called reset_type=0x%08X : created handle=0x%08X",
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reset_type, *handle);
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return res.raw;
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using Kernel::Timer;
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auto timer_res = Timer::Create(static_cast<ResetType>(reset_type));
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if (timer_res.Failed())
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return timer_res.Code().raw;
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auto handle_res = Kernel::g_handle_table.Create(timer_res.MoveFrom());
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if (handle_res.Failed())
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return handle_res.Code().raw;
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*handle = handle_res.MoveFrom();
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LOG_TRACE(Kernel_SVC, "called reset_type=0x%08X : created handle=0x%08X", reset_type, *handle);
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return RESULT_SUCCESS.raw;
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}
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/// Clears a timer
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static Result ClearTimer(Handle handle) {
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using Kernel::Timer;
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LOG_TRACE(Kernel_SVC, "called timer=0x%08X", handle);
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return Kernel::ClearTimer(handle).raw;
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SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
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if (timer == nullptr)
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return InvalidHandle(ErrorModule::Kernel).raw;
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timer->Clear();
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return RESULT_SUCCESS.raw;
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}
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/// Starts a timer
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static Result SetTimer(Handle handle, s64 initial, s64 interval) {
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using Kernel::Timer;
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LOG_TRACE(Kernel_SVC, "called timer=0x%08X", handle);
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return Kernel::SetTimer(handle, initial, interval).raw;
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SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
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if (timer == nullptr)
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return InvalidHandle(ErrorModule::Kernel).raw;
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timer->Set(initial, interval);
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return RESULT_SUCCESS.raw;
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}
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/// Cancels a timer
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static Result CancelTimer(Handle handle) {
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using Kernel::Timer;
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LOG_TRACE(Kernel_SVC, "called timer=0x%08X", handle);
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return Kernel::CancelTimer(handle).raw;
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SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
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if (timer == nullptr)
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return InvalidHandle(ErrorModule::Kernel).raw;
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timer->Cancel();
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return RESULT_SUCCESS.raw;
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}
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/// Sleep the current thread
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