Manual Pages for UNIX Operating System command usage for man ipc

Headers                                              ipc.h(3HEAD)



NAME
     ipc.h, ipc - XSI interprocess communication access structure

SYNOPSIS
     #include 


DESCRIPTION
     The  header  is  used  by  three  mechanisms  for
     interprocess  communication (IPC): messages, semaphores, and
     shared memory. All use a common structure type, ipc_perm, to
     pass  information  used in determining permission to perform
     an IPC operation.


     The ipc_perm structure contains the following members:

       uid_t  uid     /* owner's user ID */
       gid_t  gid     /* owner's group ID */
       uid_t  cuid    /* creator's user ID */
       gid_t  cgid    /* creator's group ID */
       mode_t mode    /* read/write permission



     The uid_t, gid_t, mode_t, and key_t  types  are  defined  as
     described in . See types.h(3HEAD).


     Definitions are provided for the constants listed below.


     Mode bits:

     IPC_CREAT     Create entry if key does not exist.


     IPC_EXCL      Fail if key exists.


     IPC_NOWAIT    Error if request must wait.



     Keys:

     IPC_PRIVATE    Private key.



     Control commands:




SunOS 5.11          Last change: 10 Sep 2004                    1






Headers                                              ipc.h(3HEAD)



     IPC_RMID    Remove identifier.


     IPC_SET     Set options.


     IPC_STAT    Get options.


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



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


SEE ALSO
     ftok(3C), types.h(3HEAD), attributes(5), standards(5)





























SunOS 5.11          Last change: 10 Sep 2004                    2