mqueue

QNX SDP8.0Utilities ReferenceUtilities

Message queue manager (QNX OS)

Note:
You must be root or have the right abilities to start this manager.

Syntax:

mqueue [-d] [-n num] [-p priority]

Runs on:

QNX OS

Options:

-d
Don't daemonize.
-n num
Set the maximum number of queues (default 1024, max 32768).
-p priority
Run at the given static priority.

Description:

The mqueue manager implements POSIX 1003.1b message queues. It is a resource manager that handles message queue administration (e.g., queue creation and destruction), but because the queues are in kernel space, queue send, receive, and notification do not have message-passing overhead.

When you create a queue, it appears in the pathname space under /dev/mqueue. The /dev/mqueue directory appears as soon as you start mqueue.

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