ipcmk - make various IPC resources
ipcmk allows you to create System V inter-process
communication (IPC) objects: shared memory segments, message queues, and
semaphore arrays.
- Resources can be
specified with these options:
- -M, --shmem
size
- Create a shared memory segment of size bytes. The size
argument may be followed by the multiplicative suffixes KiB (=1024), MiB
(=1024*1024), and so on for GiB, etc. (the "iB" is optional,
e.g., "K" has the same meaning as "KiB") or the
suffixes KB (=1000), MB (=1000*1000), and so on for GB, etc.
- -Q, --queue
- Create a message queue.
- -S, --semaphore
number
- Create a semaphore array with number of elements.
Other options are:
- -p, --mode
mode
- Access permissions for the resource. Default is 0644.
- -V, --version
- Display version information and exit.
- -h, --help
- Display help text and exit.