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Re: vm_size_t is unsigned, add vm_ssize_t?

From: Samuel Thibault
Subject: Re: vm_size_t is unsigned, add vm_ssize_t?
Date: Tue, 22 Feb 2011 01:48:35 +0100
User-agent: Mutt/1.5.12-2006-07-14

Roland McGrath, le Mon 21 Feb 2011 16:42:23 -0800, a écrit :
> ssize_t is for things that either return a size_t value or -1.
> It's never used for parameters.  I don't think a vm_ssize_t makes any sense.
> This is an odd way to use constructed the RPC interface for this, but we
> already have it and perhaps there was some reason to do it that way.
> You can just pass (vm_size_t) -1 as the value to indicate "no upper limit".
> That should work automatically without any special effort on the server side.

So we need to change the RPC documentation to explicit "-1" instead of
"negative", right?


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