ipc(2) — Linux manual page


ipc(2)                     System Calls Manual                    ipc(2)

NAME         top

       ipc - System V IPC system calls

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #include <linux/ipc.h>        /* Definition of needed constants */
       #include <sys/syscall.h>      /* Definition of SYS_* constants */
       #include <unistd.h>

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

       Note: glibc provides no wrapper for ipc(), necessitating the use
       of syscall(2).

DESCRIPTION         top

       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().

VERSIONS         top

       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.

STANDARDS         top


SEE ALSO         top

       msgctl(2), msgget(2), msgrcv(2), msgsnd(2), semctl(2), semget(2),
       semop(2), semtimedop(2), shmat(2), shmctl(2), shmdt(2),
       shmget(2), sysvipc(7)

Linux man-pages (unreleased)     (date)                           ipc(2)

Pages that refer to this page: semctl(2)syscalls(2)unimplemented(2)seccomp_syscall_resolve_name(3)sysvipc(7)