Re: [boost] [process] Formal Review starts today, 27 October

Subject: Re: [boost] [process] Formal Review starts today, 27 October
From: Niall Douglas (s_sourceforge_at_[hidden])
Date: 2016-10-30 21:36:54

On 31 Oct 2016 at 13:18, Gavin Lambert wrote:

> > Now the problem I see is this: what happens here?
> >
> > auto compile = bp::child("c++");
> > compile.output(bp::null);
> > compile("main.cpp");
> > compile.env({"PATH", "/foo"});
> 
> The fourth call should fail (and probably throw), since it's impossible 
> to change the environment after the process has been started.  Otherwise 
> that should work as you'd expect.

The idea in my original proposal of that form 
(https://godbolt.org/g/38C0KH) was to enable quick and natural child 
worker factories e.g.

auto compile = bp::child("c++");
compile.output(bp::null);
bp::child::future child1 = compile("main.cpp");
compile.env({"", "/foo"});
bp::child::future child2 = compile("main.cpp");
... more config changes and more child launches ...

Niall

-- 
ned Productions Limited Consulting
http://www.nedproductions.biz/ 
http://ie.linkedin.com/in/nialldouglas/