bunnei
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11e7c1244c
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// 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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#include "common/assert.h"
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#include "common/logging/log.h"
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#include "core/core.h"
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#include "core/core_timing.h"
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#include "core/core_timing_util.h"
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#include "core/hle/kernel/handle_table.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/object.h"
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#include "core/hle/kernel/thread.h"
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#include "core/hle/kernel/timer.h"
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namespace Kernel {
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Timer::Timer(KernelCore& kernel) : WaitObject{kernel} {}
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Timer::~Timer() = default;
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SharedPtr<Timer> Timer::Create(KernelCore& kernel, ResetType reset_type, std::string name) {
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SharedPtr<Timer> timer(new Timer(kernel));
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timer->reset_type = reset_type;
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timer->signaled = false;
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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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timer->callback_handle = kernel.CreateTimerCallbackHandle(timer).Unwrap();
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return timer;
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}
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bool Timer::ShouldWait(Thread* thread) const {
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return !signaled;
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}
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void Timer::Acquire(Thread* thread) {
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ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
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if (reset_type == ResetType::OneShot)
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signaled = false;
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}
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void Timer::Set(s64 initial, s64 interval) {
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// Ensure we get rid of any previous scheduled event
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Cancel();
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initial_delay = initial;
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interval_delay = interval;
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if (initial == 0) {
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// Immediately invoke the callback
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Signal(0);
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} else {
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CoreTiming::ScheduleEvent(CoreTiming::nsToCycles(initial), kernel.TimerCallbackEventType(),
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callback_handle);
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}
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}
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void Timer::Cancel() {
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CoreTiming::UnscheduleEvent(kernel.TimerCallbackEventType(), callback_handle);
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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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void Timer::Signal(int cycles_late) {
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LOG_TRACE(Kernel, "Timer {} fired", GetObjectId());
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signaled = true;
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// Resume all waiting threads
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WakeupAllWaitingThreads();
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if (interval_delay != 0) {
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// Reschedule the timer with the interval delay
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CoreTiming::ScheduleEvent(CoreTiming::nsToCycles(interval_delay) - cycles_late,
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kernel.TimerCallbackEventType(), callback_handle);
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}
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}
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} // namespace Kernel
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@ -1,88 +0,0 @@
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// 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/hle/kernel/object.h"
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#include "core/hle/kernel/wait_object.h"
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namespace Kernel {
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class KernelCore;
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class Timer final : public WaitObject {
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public:
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/**
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* Creates a timer
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* @param kernel The kernel instance to create the timer callback handle for.
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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 SharedPtr<Timer> Create(KernelCore& kernel, ResetType reset_type,
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std::string name = "Unknown");
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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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/**
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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(int cycles_late);
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private:
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explicit Timer(KernelCore& 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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/// Handle used as userdata to reference this object when inserting into the CoreTiming queue.
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Handle callback_handle;
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};
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} // namespace Kernel
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