public:

using TimerToken = cabinet::Token;

using Callback = std::function<void()>;

using Milliseconds = std::chrono::milliseconds;

using TimePoint = std::chrono::system_clock::time_point;

public:

explicit TimerPool(event::Loop *wp_loop);

virtual ~TimerPool();

NONCOPYABLE(TimerPool);

IMMOVABLE(TimerPool);

public:

TimerToken doEvery(const Milliseconds &m_sec, Callback &&cb);

TimerToken doAfter(const Milliseconds &m_sec, Callback &&cb);

TimerToken doAt(const TimePoint &time_point, Callback &&cb);

//! NOTICE:

//! 使用时一定要小心对象生命期倒挂问题！

//! 如果 Callback 持有了短生命期的对象，在该对象消亡时记得 cancel 该定时器

bool cancel(const TimerToken &token);

void cleanup();

private:

class Impl;

Impl *impl_ = nullptr;