On Wednesday, 29 March 2017 at 19:19:48 UTC, Enigma wrote:
I have a memory buffer allocated using different methods. It is
simply a pointer and a size.
I would like to be able to manage this buffer by treating it as
a memory pool or heap. I think I can use allocators to do this
but not sure how.
Effectively I want something like new or malloc but it pulls
from the memory buffer rather than the program heap.
// Allocated once at program start
void* FancyBuffer = FancyAlloc(1000);
Then when I want to use the buffer I'll do stuff like
auto myptr = FancyMalloc(10);
....
FancyFree(myptr);
or whatever.
The main thing is, I don't want to have to write my own
allocator to manage this buffer as it seems that D's allocators
would do a better job.
I imagine that most of the time the buffer will not have more
than one piece of code using it(no overlapping uses) but since
I won't be 100% sure, I need allow for the cases where there
might be overlapping usage. (else I wouldn't ever have to worry
about "allocating or releasing" from it.
Thanks.
It looks like you are looking for this:
http://dlang.org/phobos-prerelease/std_experimental_allocator_building_blocks_region.html.
