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
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 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.
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 3.55 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/.
Linux 2012-10-16 IPC(2)