Messages in this thread |  | | Date | Wed, 31 Jul 1996 09:12:35 +0200 | From | Volker Eberlein Guest at ROBERT BOSCH GmbH FV/SLH <> | Subject | Re: posix 4 extensions |
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Johnie Stafford wrote:
> 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. > > Johnie >
Though I am pretty anxiously waiting for the posix.1b/posix.4 features as well, I would like you to take notice of the fact that the feature of attaching a shared mem segment to a specified address is already given with SysV IPC.
shm_root_p = shmat (shm_id, (char *)0xa0000000 ,0);
is a possible action. But anyway: the 'clean' solution for pointers in shared memory would always be having addresses relative to the segment's borders.
Volker
/*******************************************************************/ /* Volker Eberlein */ /* volker.eberlein@fr.bosch.de */ /*******************************************************************/
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