mqueue

Manage message queues (QNX Neutrino)

Note: You must be root to start this manager.

Syntax:

mqueue [-d] [-p priority] &

Runs on:

QNX Neutrino

Options:

-d
Don't daemonize.
-p priority
Run at the given static priority.

Description:

The mqueue manager implements POSIX 1003.1b message queues. When you create a queue, it appears in the pathname space under /dev/mqueue.

Note:
  • The /dev/mqueue directory doesn't appear until you actually create a queue.
  • Note that you can have only one of mq and mqueue running on your system at any time.

The traditional POSIX message queue manager is a resource manager that uses messages to communicate with its clients. You can access it locally or remotely, allowing for network-wide message queues. On a QNX Neutrino system, the default sysinit script starts mqueue.

Note: Starting with release 6.3.0, procnto manages named semaphores, which mqueue used to do (mqueue still manages named semaphores if it detects that procnto isn't doing so).

For more information, see the Managing POSIX Message Queues technote.