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| From: | Roland McGrath |
| Subject: | Re: mach_port_t vs task_t (really ipc_space_t) in Mach header files |
| Date: | Fri, 28 Sep 2001 02:07:45 -0400 (EDT) |
There are probably a few weird hacks that rely on true port polymorphism. But most of the uses can be described as interface subtyping (e.g. file_t and socket_t are subtypes of io_t).
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