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
User-space 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
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),
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Linux 2017-09-15 IPC(2)
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