Manual Pages for UNIX Operating System command usage for man shm

Headers                                              shm.h(3HEAD)



NAME
     shm.h, shm -  shared memory facility

SYNOPSIS
     #include 


DESCRIPTION
     The  header defines the following  symbolic  con-
     stants:

     SHM_RDONLY    attach read-only (else read-write)


     SHM_RND       round attach address to SHMLBA



     The  header defines the following symbolic value:

     SHMLBA    segment low boundary address multiple



     The following data types are defined through typedef:

     shmatt_t    Unsigned integer used for the number of  current
                 attaches  that  must  be able to store values at
                 least as large as a type unsigned short.



     The shmid_ds structure contains the following members:

       struct ipc_perm shm_perm       /* operation permission structure */
       size_t          shm_segsz      /* size of segment in bytes */
       pid_t           shm_lpid       /* process ID of last shared memory
                                         operation */
       pid_t           shm_cpid       /* process ID of creator */
       shmatt_t        shm_nattch     /* number of current attaches */
       time_t          shm_atime      /* time of last shmat() */
       time_t          shm_dtime      /* time of last shmdt() */
       time_t          shm_ctime      /* time of last change by shmctl() */



     The pid_t, time_t, key_t, and size_t types  are  defined  as
     described in . See types.h(3HEAD).


     In addition, all of the symbols from  are defined
     when this header is included.



SunOS 5.11          Last change: 10 Sep 2004                    1






Headers                                              shm.h(3HEAD)



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



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


SEE ALSO
     shmctl(2),      shmget(2),      shmop(2),      ipc.h(3HEAD),
     types.h(3HEAD), attributes(5), standards(5)





































SunOS 5.11          Last change: 10 Sep 2004                    2