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Re: Posix Inter-process comunication on RH 7.1




Shaul Karl wrote:

All those references (mqueue.h, mq_open and the others) looks to me as related to the KDE env.
You might be interested in info ipc or man 5 ipc.
--
When responding, please quote my entire message.


> > The company  I work on agreed to try the RH 7.1 for a large sw. project
> > (several hundreds thousands of code lines)- which works presently  on
> > Solaris.
> > I emphasize that the project is in maintenance state (sw. alredy
> > developed , formal tested and tried).
> >
> > We started by compiling and linking the source code on Kdevelop-- though
> > the system manager installed just the Gnome packages.
> > The sw.  uses frequently  Posix inter-process mechanisms (shared memory,
> > semaphores, queues).
> >
> >  Compilation and link went more or less OK, until we tryed to use the
> > debugger in a step by step mode.
> > The shm_open function returned with code error indicating that this
> > function is not
> > implemented (code no. 38) .
> > The same situation was encountered  on mq_open().
> > However, the included files needed for these mechanisms (mqueue.h , for
> > example)
> > did not produced any link problems.
> > We installed some other packages and that did not change the situation.
> > Can someone tell me what package(s) are needed in order to get all the
> > Posix inter-processing mechanisms on RH 7.1 .
> >
> > Thank you
> > Edy Gold
> >
>
> All those references (mqueue.h, mq_open and the others) looks to me as related to the KDE env.
> You might be interested in info ipc or man 5 ipc.
> --
> When responding, please quote my entire message.
>
>     Shaul Karl <shaulka@bezeqint.net>
>
>

Thank you for the response.
I have a problem with the KDE help system also (maybe some Qt libraries are also
missing)-but I'm not concern about it now.
Anyway, as I mentioned I thinck that the problem is that a large part of Posix related
system calls are missing, though System V style ipc are present on the system.
In short, the system works for shmget (system V call for shared memory), but not shm_open (the
Posix style, which also is differently used). The same for queues --msgget (system V check
for new messages) versus mq_open (Posix obtaining a queue ID) .
I need the name of the packages that the Posix libraries are on RH 7.1 .

Gold Edy


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