Re: HEADS UP: Win32/OS2/BeOS native ports

Tom Lane wrote:
>
> mlw <markw(at)mohawksoft(dot)com> writes:
> > I think that you should create a verbatim implementation of the SysV
> > shared memory API in native Win32. It may have to be a pgsysvshm.dll
> > or something like it, but I think it is the best possible approach.
>
> > Let me look at it, I may be able to have something pretty quick.
>
> The notion of redesigning the internal API shouldn't be forgotten,
> though. I'm not so dissatisfied with the shmem API (mainly because
> it's only relevant at startup; once we've created and attached the
> shmem segment, we're done worrying about it). But the SysV semaphore
> API is really kind of ugly, and the ugliness doesn't buy anything except
> porting difficulty. Moreover, putting a cleaner API layer there would
> make it easier to experiment with cheaper semaphore primitives, such
> as POSIX mutexes.
>
> There was a thread last fall concerning redesigning that code --- I've
> forgotten the guy's name, but IIRC he wanted to make a port to QNX6,
> and the sema code was getting in the way. We put the work on hold
> because we were getting close to 7.2 release (or thought we were,
> anyway) but the project ought to be taken up again.

I will commit to writing a windows version of what ever shm/semaphore/mutex
code you guys specify.

>
> regards, tom lane