Re: [boost] [boost.lockfree] spsc_queue preallocated memory block

Subject: Re: [boost] [boost.lockfree] spsc_queue preallocated memory block
From: Philip Bennefall (philip_at_[hidden])
Date: 2014-10-25 17:14:54

On 10/25/2014 10:15 PM, Tim Blechmann wrote:
>> I have a feature request for Boost.lockfree (spsc_queue in particular).
>> When using the runtime sized version, could there possibly be a
>> constructor that takes max_size as well as a T* that is then used as the
>> memory buffer? This would remove the need for a specialized allocator if
>> I want to quickly initialize the buffer with memory that does not come
>> from the default std allocator.
> this would only work for spsc_queue, as the other data structures will
> have some memory-overhead ... but even for spsc_queue, i'm don't like
> this too much, as
> (a) the same can be achieved using the allocator
> (b) it will mess up the implementation quite a bit
>
> i might consider a patch, if it does not complicate the implementation
> too much ... but in general i guess it is cleaner to provide an
> allocator that wraps your pre-allocated memory.
>
> tim
>
Thanks for the quick response, Tim. I understand where you're coming 
from. I will hack around a little, and if I come up with anything 
reasonable I will submit a patch.

I would also like to take the opportunity to thank you for this great 
implementation. I am in the process of integrating it in an audio mixer 
chain as the final destination for the data, and it has been a pleasure 
to work with.

Kind regards,

Philip Bennefall