> On Feb. 20, 2014, 4:37 p.m., Dominic Hamon wrote:
> > 3rdparty/libprocess/include/process/collect.hpp, line 2
> > <https://reviews.apache.org/r/18311/diff/1/?file=498993#file498993line2>
> >
> >     possibly naive question: instead of having a full copy of this header 
> > with the type changed, would it be possible to just typedef 
> > 'process::tuple' or add a 'stout::tuple' that is either a 
> > boost::tuples::tuple or std::tuple?
> 
> TILL TOENSHOFF wrote:
>     There is a point in what you say, but it wont fix things entirely.
>     
>     The C++11 implementation makes use of "proper" lambdas, the other 
> implementation does not but emulates those by the use of _await and _then.
>     
>     However, pulling boost::tupes::tuple or std::tuple into the libprocess 
> namespace depending on the availability is a good idea (unless it clashes at 
> a point I dont see right now). I will suggest another RR and adapt this one 
> to make use of this once that is done.
> 
> TILL TOENSHOFF wrote:
>     I made this RR dependent on 18360 to allow for having a unified 
> tuple-definition.
>     
>     To entirely "fix" what you aimed for, the collect-header would have to be 
> sprinkled with a bunch of #if-#else's which I hesitated to do for making our 
> final transition to C++11 a bit easier. I do however see that my approach 
> caused code duplication. Feeling unsure which route to take, I left it this 
> way. Let me know if that is a problem as I would be happy to adapt to 
> whatever is recommended by the committers.

After revisiting the remaining comments, I decided to switch over to a unified 
header. It actually makes more sense as I did not C++11ify the existing 
implementations of collect and await.  


- TILL


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On Feb. 24, 2014, 7:42 p.m., TILL TOENSHOFF wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/18311/
> -----------------------------------------------------------
> 
> (Updated Feb. 24, 2014, 7:42 p.m.)
> 
> 
> Review request for mesos, Adam B, Benjamin Hindman, Ben Mahler, Niklas 
> Nielsen, and Vinod Kone.
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> Currently the Process::await implementation on list<Future>, by the nature of 
> std::list, expects equally typed futures. This new override implements await 
> for a tuple of futures, hence allows awaiting differently typed futures in a 
> single call.
> 
> There also is a new override that allows await on a single Future, a 
> convenience approach for allowing a Process based await on a single Future 
> without forcing the user to render a list or tuple out of that. 
> 
> A C++11 and a boost-based implementation have been added.
> 
> This patch also includes tests on those new overrides.
> 
> 
> Diffs
> -----
> 
>   3rdparty/libprocess/include/process/collect.hpp 2a73bc9 
>   3rdparty/libprocess/src/tests/process_tests.cpp e899aed 
> 
> Diff: https://reviews.apache.org/r/18311/diff/
> 
> 
> Testing
> -------
> 
> make check (clang c++11, gcc)
> 
> 
> Thanks,
> 
> TILL TOENSHOFF
> 
>

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