2. System calls (functions provided by the kernel)
IPCSection: Linux Programmer's Manual (2)
Index | Return to Main Contents
NAMEipc - System V IPC system calls
int ipc(unsigned int call, int first, int second, int third, void *ptr, long fifth);
DESCRIPTIONipc() 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 TOipc() is Linux-specific, and should not be used in programs intended to be portable.
NOTESOn 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 ALSOmsgctl(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)
COLOPHONThis page is part of release 5.10 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/.
Return to Main Contents
All content on this site is copyright ©2004-2023 and is not to be reproduced without prior permission.