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Annotation of cci/sys/h/ipc.h, revision 1.1

1.1     ! root        1: /* @(#)ipc.h   6.1 */
        !             2: /* Common IPC Access Structure */
        !             3: 
        !             4: typedef long   key_t;
        !             5: 
        !             6: struct ipc_perm {
        !             7:        u_short uid;    /* owner's user id */
        !             8:        u_short gid;    /* owner's group id */
        !             9:        u_short cuid;   /* creator's user id */
        !            10:        u_short cgid;   /* creator's group id */
        !            11:        u_short mode;   /* access modes */
        !            12:        u_short seq;    /* slot usage sequence number */
        !            13:        key_t   key;    /* key */
        !            14:        u_char  flag;   /* status flag */
        !            15: };
        !            16: 
        !            17: /* Common IPC Definitions. */
        !            18: /* Mode bits. */
        !            19: #define        IPC_ALLOC       0x8000          /* entry currently allocated */
        !            20: #define        IPC_CREAT       0x0200          /* create entry if key doesn't exist */
        !            21: #define        IPC_EXCL        0x0400          /* fail if key exists */
        !            22: #define        IPC_NOWAIT      0x0800          /* error if request must wait */
        !            23: 
        !            24: /* Keys. */
        !            25: #define        IPC_PRIVATE     (key_t)0        /* private key */
        !            26: 
        !            27: /* Control Commands. */
        !            28: #define        IPC_RMID        0       /* remove identifier */
        !            29: #define        IPC_SET         1       /* set options */
        !            30: #define        IPC_STAT        2       /* get options */
        !            31: 
        !            32: /* Defines for locking */
        !            33: 
        !            34: #define IPC_LOCK       0x01    /* ipc_perm structure is locked */
        !            35: #define IPC_WANT       0x02    /* want to lock ipc_perm structure */

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