Re: mach_host_self() doesn't acquire new port name?!

[Roland McGrath]

> Now, we actually leak all these urefs (for example, when calling
> gettimeofday). Even for a process calling mach_host_self() 1000 times a
> second it would take 50 days to overflow. For purity, should we deallocate
> the port? Overflow is set to TRUE in this code path, so it might
> be okay to just not bother anyway (ignoring that we might not want to bother
> because it is extremely unlikely to ever overflow)? Am I just paranoid?
> There are only a dozen places or so where we call mach_host_self, so it
> wouldn't be too hard to fix if that's the right thing to do.

Yes, that's appropriate.  It's probably just been omitted out of habit
because of the similarity to mach_task_self, which is a macro that doesn't
in fact add another uref.

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