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NAME
       ipc - System V IPC system calls


SYNOPSIS
       int ipc(unsigned int call, int first, int second, int third,
               void *ptr, long fifth);


DESCRIPTION
       ipc()  is a common kernel entry point for the System V IPC calls for messages, semaphores,
       and shared memory.  call determines which IPC function to invoke; the other arguments  are
       passed through to the appropriate call.

       User  programs  should call the appropriate functions by their usual names.  Only standard
       library implementors and kernel hackers need to know about ipc().


CONFORMING TO
       ipc() is Linux-specific, and should not be used in programs intended to be portable.


NOTES
       On some architectures—for example x86-64 and ARM—there is no ipc()  system  call;  instead
       msgctl(2),  semctl(2),  shmctl(2),  and  so  on  really are implemented as separate system
       calls.


SEE ALSO
       msgctl(2), msgget(2), msgrcv(2), msgsnd(2), semctl(2), semget(2), semop(2), semtimedop(2),
       shmat(2), shmctl(2), shmdt(2), shmget(2)


COLOPHON
       This  page  is  part of release 3.54 of the Linux man-pages project.  A description of the
       project,    and    information    about    reporting    bugs,    can    be    found     at
       http://www.kernel.org/doc/man-pages/.