RE: [HACKERS] Hardwired MAXBACKENDS limit could be history

[Mikheev, Vadim]

> I'm not thinking about getting this done in time for 7.1, but I think
> it'd be a nice cleanup for 7.2.
> 
> Bruce, a TODO item please:
>   * Remove compile-time upper limit on number of backends 
> (MAXBACKENDS)

Did you ever consider remove per-backend semaphores at all?
We use them to sleep waiting for lock (ie when someone awake
us by changing our semaphore) - why don't use sigpause and
some signal? Semaphores are good to sync access to *shared*
resources but it's not that case here.

Vadim