Re: [Boost-users] [boost::thread] using futures

Subject: Re: [Boost-users] [boost::thread] using futures
From: Anthony Williams (anthony.ajw_at_[hidden])
Date: 2011-05-09 17:00:49

Kazz <sfx810_at_[hidden]> writes:

> Thanks for quick reply.
> Now I understand that you can only set value once for a promise. How can we
> modify the existing example, that which ever worker thread has finished and
> called the  set_value(), the next set_value() call gets ignored. One solution 
> (plz correct me here if wrong)Â  could be to wrap both set_value() with try
> catch block. Is there any other solution to get a final result from multiple or
> thread pools and once the result is obtained, discarding further calls to
> set_value() ?

Using try/catch is the most straightforward way to do this.

Anthony
-- 
Author of C++ Concurrency in Action     http://www.stdthread.co.uk/book/
just::thread C++0x thread library             http://www.stdthread.co.uk
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