The OpenNET Project / Index page

[ новости /+++ | форум | теги | ]

Интерактивная система просмотра системных руководств (man-ов)

 ТемаНаборКатегория 
 
 [Cписок руководств | Печать]

mqueuefs (5)
  • >> mqueuefs (5) ( FreeBSD man: Форматы файлов )

  • BSD mandoc
     

    NAME

    
    
    mqueuefs
    
     - POSIX message queue file system
    
     
    

    SYNOPSIS

    To link into kernel:

    To load as a kernel loadable module:

    "kldload mqueuefs"
     

    DESCRIPTION

    The module will permit the Fx kernel to support POSIX message queue. The module contains system calls to manipulate POSIX message queues. It also contains a file system to implement a view for all message queues of the system. This helps users to keep track of their message queues and make it more easily usable without having to invent additional tools.

    The most common usage is as follows:

    "mount -t mqueuefs null /mnt/mqueue"

    where /mnt/mqueue is a mount point.

    It is possible to define an entry in /etc/fstab that looks similar to:

    null    /mnt/mqueue     mqueuefs        rw      0       0
    

    This will mount at the /mnt/mqueue mount point during system boot. Using /mnt/mqueue as a permanent mount point is not advised as its intention has always been to be a temporary mount point. See hier(7) for more information on Fx directory layout.

    Some common tools can be used on the file system, e.g.: cat(1), chmod(1), chown(8), ls(1), rm(1), etc. To use only the message queue system calls, it is not necessary for user to mount the file system, just load the module or compile it into the kernel. Manually creating a file, for example, ``touch /mnt/mqueue/myqueue '' will create a message queue named myqueue in the kernel, default message queue attributes will be applied to the queue. It is not advised to use this method to create a queue; it is better to use the mq_open2 system call to create a queue as it allows the user to specify different attributes.

    To see the queue's attributes, just read the file:

    "cat /mnt/mqueue/myqueue"
     

    SEE ALSO

    mq_open2, nmount(2), unmount(2), mount(8), umount(8)  

    AUTHORS

    This manual page was written by An David Xu Aq [email protected] .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    SEE ALSO
    AUTHORS


    Поиск по тексту MAN-ов: 




    Партнёры:
    PostgresPro
    Inferno Solutions
    Hosting by Hoster.ru
    Хостинг:

    Закладки на сайте
    Проследить за страницей
    Created 1996-2024 by Maxim Chirkov
    Добавить, Поддержать, Вебмастеру