ipcmk

Create System V IPC resources.

Synopsis

ipcmk -M <size>     # create shared memory segment
ipcmk -Q            # create message queue
ipcmk -S <nsems>    # create semaphore array

Creates System V IPC resources using shmget(2), msgget(2), or semget(2) with IPC_PRIVATE as the key (guaranteeing a new unique resource).

Syscall	Flag	Description
`shmget(IPC_PRIVATE, size, IPC_CREAT \| mode)`	`-M`	Create shared memory
`msgget(IPC_PRIVATE, IPC_CREAT \| mode)`	`-Q`	Create message queue
`semget(IPC_PRIVATE, nsems, IPC_CREAT \| mode)`	`-S`	Create semaphore array

Option	Description
`-M, --shmem <size>`	Create shared memory segment of given size
`-Q, --queue`	Create message queue
`-S, --semaphore <N>`	Create semaphore array with N elements
`-p, --mode <mode>`	Permissions in octal (default: 0644)
`-h, --help`	Display help
`-V, --version`	Display version

Code	Meaning
0	Success
1	Failure