Re: [Boost-users] Accessing running thread in Boost.Threads

From: Bondarenko Denis (storm_at_[hidden])
Date: 2005-11-14 08:59:42

Peter Dimov wrote:

>Bondarenko Denis wrote:
>  
>
>>Hello!
>>I'm trying to use Boost.Thread in my application. I created my class
>>with overloaded operator ( ) and pass it's object to the thread
>>constructor. Thread runs, it's ok. But as I understand, when I pass my
>>object to the thread constructor, thread makes a copy of it. So when I
>>try to send a message (call a method) to MY object, running thread
>>doesn't receive it, because it is a COPY. I solved this problem by
>>giving to the thread object a pointer to a parent object (some kind of
>>callback), but it's not quite suitable. How can I access the copy of
>>my object, which is used by Boost.Thread? Is it possible or giving a
>>pointer to parent object is the only way?
>>    
>>
>
>Boost.Threads doesn't expose the internal copy of the function object, but 
>you can use the following idiom to achieve a similar effect:
>
>struct my_object
>{
>    void run() { /* do threaded things */ }
>    void message() { /* presumably lock mutex and deliver a message */ }
>};
>
>int main()
>{
>    boost::shared_ptr<my_object> pm( new my_object );
>    boost::thread thr( boost::bind( &my_object::run, pm ) );
>    pm->message();
>}
>  
>
Hi, Peter!
Thank you very much. It works good. It looks like I should learn more 
about Boost.Bind :)

Best regards,
Denis