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[unix-history] / usr / src / sys / sys / msgbuf.h

/*      msgbuf.h        4.2     81/02/19        */

#define MSG_MAGIC       0x063060
#define MSG_BSIZE       (NBPG*CLSIZE - 2 * sizeof (long))
struct  msgbuf {
       long    msg_magic;
       long    msg_bufx;
       char    msg_bufc[MSG_BSIZE];
};
#ifdef KERNEL
struct  msgbuf msgbuf;
#endif