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#include "timer.h"
namespace cru
{
TimerManager* TimerManager::instance_ = nullptr;
TimerManager* TimerManager::GetInstance()
{
return instance_;
}
TimerManager::TimerManager()
{
instance_ = this;
}
TimerManager::~TimerManager()
{
instance_ = nullptr;
}
UINT_PTR TimerManager::CreateTimer(const UINT microseconds, const bool loop, const TimerAction & action)
{
auto id = ::SetTimer(nullptr, 0, microseconds, nullptr);
if (loop)
map_[id] = action;
else
map_[id] = [this, action, id]() {
action();
this->KillTimer(id);
};
return id;
}
void TimerManager::KillTimer(const UINT_PTR id)
{
const auto find_result = map_.find(id);
if (find_result != map_.cend())
{
::KillTimer(nullptr, id);
map_.erase(find_result);
}
}
std::optional<TimerAction> TimerManager::GetAction(const UINT_PTR id)
{
auto find_result = map_.find(id);
if (find_result == map_.cend())
return std::nullopt;
return find_result->second;
}
class TimerTaskImpl : public ITimerTask
{
public:
explicit TimerTaskImpl(UINT_PTR id);
TimerTaskImpl(const TimerTaskImpl& other) = delete;
TimerTaskImpl(TimerTaskImpl&& other) = delete;
TimerTaskImpl& operator=(const TimerTaskImpl& other) = delete;
TimerTaskImpl& operator=(TimerTaskImpl&& other) = delete;
~TimerTaskImpl() override = default;
void Cancel() override;
private:
UINT_PTR id_;
};
TimerTaskImpl::TimerTaskImpl(const UINT_PTR id)
: id_(id)
{
}
void TimerTaskImpl::Cancel()
{
TimerManager::GetInstance()->KillTimer(id_);
}
inline UINT SecondToMicroSecond(const double seconds)
{
return static_cast<UINT>(seconds * 1000);
}
std::shared_ptr<ITimerTask> SetTimeout(const double seconds, const TimerAction & action)
{
auto id = TimerManager::GetInstance()->CreateTimer(SecondToMicroSecond(seconds), false, action);
return std::make_shared<TimerTaskImpl>(id);
}
std::shared_ptr<ITimerTask> SetInterval(const double seconds, const TimerAction & action)
{
auto id = TimerManager::GetInstance()->CreateTimer(SecondToMicroSecond(seconds), true, action);
return std::make_shared<TimerTaskImpl>(id);
}
}
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