| #ifndef __ASM_GENERIC_MSGBUF_H |
| #define __ASM_GENERIC_MSGBUF_H |
| |
| #include <asm/bitsperlong.h> |
| /* |
| * generic msqid64_ds structure. |
| * |
| * Note extra padding because this structure is passed back and forth |
| * between kernel and user space. |
| * |
| * msqid64_ds was originally meant to be architecture specific, but |
| * everyone just ended up making identical copies without specific |
| * optimizations, so we may just as well all use the same one. |
| * |
| * 64 bit architectures typically define a 64 bit __kernel_time_t, |
| * so they do not need the first three padding words. |
| * On big-endian systems, the padding is in the wrong place. |
| * |
| * Pad space is left for: |
| * - 64-bit time_t to solve y2038 problem |
| * - 2 miscellaneous 32-bit values |
| */ |
| |
| struct msqid64_ds { |
| struct ipc64_perm msg_perm; |
| __kernel_time_t msg_stime; /* last msgsnd time */ |
| #if __BITS_PER_LONG != 64 |
| unsigned long __unused1; |
| #endif |
| __kernel_time_t msg_rtime; /* last msgrcv time */ |
| #if __BITS_PER_LONG != 64 |
| unsigned long __unused2; |
| #endif |
| __kernel_time_t msg_ctime; /* last change time */ |
| #if __BITS_PER_LONG != 64 |
| unsigned long __unused3; |
| #endif |
| 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 __unused4; |
| unsigned long __unused5; |
| }; |
| |
| #endif /* __ASM_GENERIC_MSGBUF_H */ |
