Re: LWLock/ShmemIndex startup question

Claudio Natoli wrote:
>
>
> Tom Lane writes:
> > [cvs is your friend...] It appears to have been added as part of the
> > MinGW porting work last May. I don't have much faith in it; as far as
> > I heard the MinGW port never got further than making the client-side
> > code work, and so this file has no real-world testing.
>
> FWIW, I've done a code walk-through, and it looks ok (lack of real-world
> testing notwithstanding), and actually does use the Win32 sema set. The only
> real problem is that it calls ShmemInitStruct in semget, which ultimately
> gets us into bootstrap hell (without native spinlocks, at least).
>
> Also, as far as using it in the "hardware independent" version of spin-locks
> go, it makes kernel calls, which, as spin.c comments: "is too slow to be
> very useful".

Yep, native gcc TAS assembler should work fine on MinGW with gcc.

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