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Re: Type of udata in kevent
On Sat, Nov 10, 2012 at 10:40:19AM -0500, D'Arcy J.M. Cain wrote:
> In /usr/include/sys/event.h we define udata in the kevent structure as
> intptr_t. FreeBSD defines it as a void *. This is a problem with
> portability. The comment describes udata as "opaque user data
> identifier" suggesting that FreeBSD is correct. Does anyone know why
> we call it a pointer to an int?
Because the API comes from OS X, and it is intptr_t in OS X.
Why FreeBSD chose to break compatibility, I don't know.
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