#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 */