Re: [boost] Re: about function.hpp

From: Jesse Jones (jesjones_at_[hidden])
Date: 2001-05-08 21:09:16

At 3:15 PM +0300 5/8/01, Peter Dimov wrote:
>From: "Jesse Jones" <jesjones_at_[hidden]>
>
>[...]
>
>>  >I'm looking at an interface more like:
>>  >class ITimer {
>>  >   TimerHandle AddTimer(const function<void>& f, int ms, ...);
>>  >   void RemoveTimer(TimerHandle handle);
>>  >   void SetDelay(TimerHandle handle, int ms);
>>  >};
>>
>>  Sure, you return a cookie used to identify the timer. But if you make
>>  the reasonable requirement that   you can't install multiple timers
>>  on one callback you can ditch the cookie. I don't think it buys you
>>  anything: it's just one more piece of data for users to juggle.
>
>Another approach:
>
>class Timer
>{
>public:
>     Timer(function<void> const & onTick, int interval);
>};

  I like this better than the cookie approach, but it's still not 
quite as clean as my original approach. And, as I mentioned, timers 
are the easy case. The harder case is handling menu commands. I don't 
want 46 cookies floating around and I don't want 46 helper objects 
either. :-)

   -- Jesse