Re: [boost] [context] Implementation comments

Subject: Re: [boost] [context] Implementation comments
From: Oliver Kowalke (k-oli_at_[hidden])
Date: 2011-01-20 14:38:23

Am 20.01.2011 08:23, schrieb vicente.botet:
>> Some additional points to your request for separating stack allocation from context creation: Windows Fiber API (which is used as an implementation detail on Windows) doesn't allow to pass an self-allocated stack to CreateFiber(). So this would break the interface of boost::context.
>
> I think the interface of boost::context must be independent of the implementation details of a specific platform if in this way the interface could allow a better implementation on most of the other platforms. Instead of reducing the interface we need to make it as open as we can.
>
> The library could provide some stack allocation mechanisms which will take care of whether the implementation is using the Windows Fiber API. A user should be able to define its own allocation stack mechanism and be as efficient as possible if s/he takes in account detail implementation information provided by Boost.Context through for example a macro, BOOST_CONTEXT_MANAGE_THE_STACK or somthing like that.

If the ctor of boost::context takes an allocator-like object to allocate 
stack (how the space will be allocated can be specialized by the user) - 
should the lib ignore the allocator if Windows Fibers are used internally?
What recommends the boost standard?

Oliver