> I'am against a generic patch using select(). If we have sched_yield() on an
> architecture I don't see why dont't use it. Here is the patch for Linux.
> It has been tested for two months by 100 users without any problem.
> The only thing I would add is a more general configuration test in configure
> to include the proper include files.
I understand your issue. Unfortunately, only Linux has sched_yield(),
as far as I know. Perhaps we can implement sched_yield/select based on
the platform. However, if someone is holding a spinlock, does
sched_yield() give the other process enough time to finish with the
spinlock before we start checking it again. Seems select() allows us to
control the time we wait before checking again.
Also, it looks like the s_lock.h file is going to change pretty
radically from David's change, so when he is done, we can put some
OS-specific stuff if you wish.
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