Messages in this thread |  | | Date | Thu, 1 Aug 1996 18:31:16 +0100 | From | "Stephen C. Tweedie" <> | Subject | Re: posix 4 extensions |
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Hi,
On Thu, 1 Aug 96 07:41 CDT, jms@pobox.com (Johnie Stafford) said:
>>>> On Wed, 31 Jul 1996 19:32:19 +0100 (BST), alan@lxorguk.ukuu.org.uk (Alan Cox) said: >>> What about the posix.4 shared memory objects? Any chance we might ever >>> see them? The ability to map shared memory segments to the same >>> logical address in several different processes would make the use of >>> pointers in shared memory possible.
ac> Both mmap() and SYS5 shared memory can already do that
> That's true, I just think that having a program specify an absolute > memory location for data to be rather ugly.
Using mmap(), you don't have to. In fact, fixed addressing with MAP_FIXED in mmap is positively discouraged.
Cheers, Stephen. -- Stephen Tweedie <sct@dcs.ed.ac.uk> Department of Computer Science, Edinburgh University, Scotland.
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