modifying the DMD compiler

[Moritz]

Brad Roberts Wrote:

> Jarrett Billingsley wrote:
> > On Sat, Dec 13, 2008 at 1:25 PM, torhu <no at spam.invalid> wrote:
> >> On 13.12.2008 17:16, Moritz wrote:
> >>> Hello,
> >>>
> >>> Im a student of computer science and at university, we're working on a
> >>> distributed shared memory system, implemented as a C library.
> >>>
> >>> Im also a great fan of D, and so Im asking myself if I could connect D
> >>> to the C library (which is no problem, as far as I know) and then modify
> >>> the memory allocation of the compiler to place objects into the
> >>> distributed memory (I would also need to disable garbage collection, but
> >>> that should be no problem).
> >>>
> >>> Ive already reviewed the sourcecode of the dmd (the parts of it that are
> >>> shipped with the dmd) and found out malloc() is called in Mem.c
> >>>
> >>> So I guess a rather simple way to do what I need would be to overwrite
> >>> the new() operator or to add another operator to allocate distributed
> >>> memory (something like new_shared() maybe).
> >>>
> >> D supports 'placement new' like in C++:
> >> http://www.digitalmars.com/d/1.0/class.html#allocators
> >>
> >> If you're using Tango or dmd 2.x you can also replace the GC with your own
> >> version if you need to.
> > 
> > He's... he's modifying the DMD source, which is in C++.
> 
> While he's asked about how to modify the compiler, I suspect what he's
> really interested is in modifying the runtime so that applications that
> are written in D can take advantage of what he's doing.  Modifying the
> compiler would be of minimal value.
> 
> Later,
> Brad


First of all, thank you for your answers. Im not really interested in modifying the source, I thought I had no other choice to get objects into our shared memory.

But I guess the 'placement new' solution will work perfectly for me, so theres no need to touch the holy DMD :-)