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IPC(2)                     Linux Programmer's Manual                    IPC(2)

       ipc - System V IPC system calls

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

       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().

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

       On  a  few  architectures,  for example ia64, there is no ipc() system call; instead msgctl(2), semctl(2), shm-
       ctl(2), and so on really are implemented as separate system calls.

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

       This  page  is part of release 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at

Linux                             2007-06-28                            IPC(2)