Manual Pages for UNIX Operating System command usage for man mqueue

Headers                                           mqueue.h(3HEAD)



NAME
     mqueue.h, mqueue - message queues

SYNOPSIS
     #include 


DESCRIPTION
     The  header defines the mqd_t type, which is  used
     for  message  queue  descriptors.  This will not be an array
     type.  A message queue descriptor may be implemented using a
     file  descriptor,  in which case applications can open up to
     at least OPEN_MAX file and message queues.


     The  header defines  the  sigevent  structure  (as
     described   in  ,  see  signal.h(3HEAD))  and  the
     mq_attr structure, which is used in getting and setting  the
     attributes of a message queue.  Attributes are initially set
     when the message queue is created.  A mq_attr structure  has
     the following members:

       long    mq_flags       message queue flags
       long    mq_maxmsg      maximum number of messages
       long    mq_msgsize     maximum message size
       long    mq_curmsgs     number of messages currently queued




     Inclusion of the  header may make visible  symbols
     defined in the headers , , ,
     and .

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | Standard                    | See standards(5).           |
    |_____________________________|_____________________________|


SEE ALSO
     fcntl.h(3HEAD),       signal.h(3HEAD),        time.h(3HEAD),
     types.h(3HEAD), attributes(5), standards(5)



SunOS 5.11          Last change: 30 Aug 2002                    1