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msgbuf.h

#ifndef _SPARC_MSGBUF_H
#define _SPARC_MSGBUF_H

/*
 * The msqid64_ds structure for sparc64 architecture.
 * Note extra padding because this structure is passed back and forth
 * between kernel and user space.
 *
 * Pad space is left for:
 * - 64-bit time_t to solve y2038 problem
 * - 2 miscellaneous 32-bit values
 */

#if defined(__sparc__) && defined(__arch64__)
# define PADDING(x)
#else
# define PADDING(x) unsigned int x;
#endif


struct msqid64_ds {
      struct ipc64_perm msg_perm;
      PADDING(__pad1)
      __kernel_time_t msg_stime;    /* last msgsnd time */
      PADDING(__pad2)
      __kernel_time_t msg_rtime;    /* last msgrcv time */
      PADDING(__pad3)
      __kernel_time_t msg_ctime;    /* last change time */
      unsigned long  msg_cbytes;    /* current number of bytes on queue */
      unsigned long  msg_qnum;      /* number of messages in queue */
      unsigned long  msg_qbytes;    /* max number of bytes on queue */
      __kernel_pid_t msg_lspid;     /* pid of last msgsnd */
      __kernel_pid_t msg_lrpid;     /* last receive pid */
      unsigned long  __unused1;
      unsigned long  __unused2;
};
#undef PADDING
#endif /* _SPARC_MSGBUF_H */

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