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Kernel: Convert Timer to (mostly) not use Handles

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This commit is contained in:
Yuri Kunde Schlesner 2015-01-23 02:19:33 -02:00
parent 882b6fed75
commit ad80ff1e32
3 changed files with 110 additions and 109 deletions
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109
src/core/hle/kernel/timer.cpp
View file

@ -13,75 +13,54 @@
namespace Kernel {
class Timer : public WaitObject {
public:
std::string GetTypeName() const override { return "Timer"; }
std::string GetName() const override { return name; }
/// The event type of the generic timer callback event
static int timer_callback_event_type = -1;
static const HandleType HANDLE_TYPE = HandleType::Timer;
HandleType GetHandleType() const override { return HANDLE_TYPE; }
ResetType reset_type; ///< The ResetType of this timer
bool signaled; ///< Whether the timer has been signaled or not
std::string name; ///< Name of timer (optional)
u64 initial_delay; ///< The delay until the timer fires for the first time
u64 interval_delay; ///< The delay until the timer fires after the first time
bool ShouldWait() override {
return !signaled;
}
void Acquire() override {
_assert_msg_(Kernel, !ShouldWait(), "object unavailable!");
}
};
/**
* Creates a timer.
* @param handle Reference to handle for the newly created timer
* @param reset_type ResetType describing how to create timer
* @param name Optional name of timer
* @return Newly created Timer object
*/
static Timer* CreateTimer(Handle& handle, const ResetType reset_type, const std::string& name) {
Timer* timer = new Timer;
handle = Kernel::g_handle_table.Create(timer).ValueOr(INVALID_HANDLE);
ResultVal<SharedPtr<Timer>> Timer::Create(ResetType reset_type, std::string name) {
SharedPtr<Timer> timer(new Timer);
// TOOD(yuriks): Don't create Handle (see Thread::Create())
CASCADE_RESULT(auto unused, Kernel::g_handle_table.Create(timer));
timer->reset_type = reset_type;
timer->signaled = false;
timer->name = name;
timer->name = std::move(name);
timer->initial_delay = 0;
timer->interval_delay = 0;
return timer;
return MakeResult<SharedPtr<Timer>>(timer);
}
ResultCode CreateTimer(Handle* handle, const ResetType reset_type, const std::string& name) {
CreateTimer(*handle, reset_type, name);
return RESULT_SUCCESS;
bool Timer::ShouldWait() {
return !signaled;
}
ResultCode ClearTimer(Handle handle) {
SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
if (timer == nullptr)
return InvalidHandle(ErrorModule::Kernel);
timer->signaled = false;
return RESULT_SUCCESS;
void Timer::Acquire() {
_assert_msg_(Kernel, !ShouldWait(), "object unavailable!");
}
/// The event type of the generic timer callback event
static int TimerCallbackEventType = -1;
void Timer::Set(s64 initial, s64 interval) {
initial_delay = initial;
interval_delay = interval;
u64 initial_microseconds = initial / 1000;
// TODO(yuriks): Figure out a replacement for GetHandle here
CoreTiming::ScheduleEvent(usToCycles(initial_microseconds), timer_callback_event_type,
GetHandle());
}
void Timer::Cancel() {
CoreTiming::UnscheduleEvent(timer_callback_event_type, GetHandle());
}
void Timer::Clear() {
signaled = false;
}
/// The timer callback event, called when a timer is fired
static void TimerCallback(u64 timer_handle, int cycles_late) {
SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(timer_handle);
if (timer == nullptr) {
LOG_CRITICAL(Kernel, "Callback fired for invalid timer %u", timer_handle);
LOG_CRITICAL(Kernel, "Callback fired for invalid timer %08X", timer_handle);
return;
}
@ -99,36 +78,12 @@ static void TimerCallback(u64 timer_handle, int cycles_late) {
// Reschedule the timer with the interval delay
u64 interval_microseconds = timer->interval_delay / 1000;
CoreTiming::ScheduleEvent(usToCycles(interval_microseconds) - cycles_late,
TimerCallbackEventType, timer_handle);
timer_callback_event_type, timer_handle);
}
}
ResultCode SetTimer(Handle handle, s64 initial, s64 interval) {
SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
if (timer == nullptr)
return InvalidHandle(ErrorModule::Kernel);
timer->initial_delay = initial;
timer->interval_delay = interval;
u64 initial_microseconds = initial / 1000;
CoreTiming::ScheduleEvent(usToCycles(initial_microseconds), TimerCallbackEventType, handle);
return RESULT_SUCCESS;
}
ResultCode CancelTimer(Handle handle) {
SharedPtr<Timer> timer = Kernel::g_handle_table.Get<Timer>(handle);
if (timer == nullptr)
return InvalidHandle(ErrorModule::Kernel);
CoreTiming::UnscheduleEvent(TimerCallbackEventType, handle);
return RESULT_SUCCESS;
}
void TimersInit() {
TimerCallbackEventType = CoreTiming::RegisterEvent("TimerCallback", TimerCallback);
timer_callback_event_type = CoreTiming::RegisterEvent("TimerCallback", TimerCallback);
}
void TimersShutdown() {

63
src/core/hle/kernel/timer.h
View file

@ -11,37 +11,50 @@
namespace Kernel {
/**
* Cancels a timer
* @param handle Handle of the timer to cancel
*/
ResultCode CancelTimer(Handle handle);
class Timer : public WaitObject {
public:
/**
* Creates a timer
* @param reset_type ResetType describing how to create the timer
* @param name Optional name of timer
* @return The created Timer
*/
static ResultVal<SharedPtr<Timer>> Create(ResetType reset_type, std::string name = "Unknown");
/**
* Starts a timer with the specified initial delay and interval
* @param handle Handle of the timer to start
* @param initial Delay until the timer is first fired
* @param interval Delay until the timer is fired after the first time
*/
ResultCode SetTimer(Handle handle, s64 initial, s64 interval);
std::string GetTypeName() const override { return "Timer"; }
std::string GetName() const override { return name; }
/**
* Clears a timer
* @param handle Handle of the timer to clear
*/
ResultCode ClearTimer(Handle handle);
static const HandleType HANDLE_TYPE = HandleType::Timer;
HandleType GetHandleType() const override { return HANDLE_TYPE; }
/**
* Creates a timer
* @param handle Handle to the newly created Timer object
* @param reset_type ResetType describing how to create the timer
* @param name Optional name of timer
* @return ResultCode of the error
*/
ResultCode CreateTimer(Handle* handle, const ResetType reset_type, const std::string& name="Unknown");
ResetType reset_type; ///< The ResetType of this timer
bool signaled; ///< Whether the timer has been signaled or not
std::string name; ///< Name of timer (optional)
u64 initial_delay; ///< The delay until the timer fires for the first time
u64 interval_delay; ///< The delay until the timer fires after the first time
bool ShouldWait() override;
void Acquire() override;
/**
* Starts the timer, with the specified initial delay and interval.
* @param initial Delay until the timer is first fired
* @param interval Delay until the timer is fired after the first time
*/
void Set(s64 initial, s64 interval);
void Cancel();
void Clear();
private:
Timer() = default;
};
/// Initializes the required variables for timers
void TimersInit();
/// Tears down the timer variables
void TimersShutdown();
} // namespace