mqueue

Manage message queues (QNX Neutrino)

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You must be root to start this manager.

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Syntax:

mqueue &

Runs on:

Neutrino

Options:

There are no options for the mqueue manager.

Description:

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

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The /dev/mqueue directory doesn't appear until you actually create a queue.

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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 self-hosted Neutrino system, the default sysinit script starts mqueue; for more information, see the Controlling How Neutrino Starts chapter of the Neutrino User's Guide.

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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).

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

See also:

mq, procnto*

mq_close(), mq_getattr(), mq_notify(), mq_open(), mq_receive(), mq_send(), mq_setattr(), mq_unlink() in the Neutrino Library Reference

Controlling How Neutrino Starts in the Neutrino User's Guide

Managing POSIX Message Queues technote