summaryrefslogtreecommitdiffstats
path: root/arch/sparc/include/asm/msgbuf.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc/include/asm/msgbuf.h')
-rw-r--r--arch/sparc/include/asm/msgbuf.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/msgbuf.h b/arch/sparc/include/asm/msgbuf.h
new file mode 100644
index 00000000000..efc7cbe9788
--- /dev/null
+++ b/arch/sparc/include/asm/msgbuf.h
@@ -0,0 +1,38 @@
+#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 */