text: #ifndef CO_TIMER_H
  #define CO_TIMER_H
  #include "evcpp.h"
  #include "awaiter.h"
  
  namespace ashan
  {
  	class coSleep : public evTimer, public awaiter<size_t, false>
  	{
  		using base = awaiter<size_t, false>;
  		int on_timer();
  	public:
  		coSleep(ev_tstamp itime);	
  		~coSleep();
  		coSleep(coSleep&) = delete;
  		coSleep(coSleep&&) = delete;				
  	};
  }
  #endif
  