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IPC(2)                     Linux Programmer's Manual                    IPC(2)
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-space 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),
       svipc(7)
COLOPHON
       This  page  is  part of release 4.15 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       https://www.kernel.org/doc/man-pages/.
Linux                             2017-09-15                            IPC(2)