first commit

1 files changed, 42 insertions, 0 deletions

diff --git a/include/linux/msg.h b/include/linux/msg.h
new file mode 100644
index 000000000..e21f9d443
--- /dev/null
+++ b/include/linux/msg.h
@@ -0,0 +1,42 @@
+#ifndef _LINUX_MSG_H
+#define _LINUX_MSG_H
+
+#include <linux/list.h>
+#include <uapi/linux/msg.h>
+
+/* one msg_msg structure for each message */
+struct msg_msg {
+	struct list_head m_list;
+	long m_type;
+	size_t m_ts;		/* message text size */
+	struct msg_msgseg* next;
+	void *security;
+	/* the actual message follows immediately */
+};
+
+/* one msq_queue structure for each present queue on the system */
+struct msg_queue {
+	struct kern_ipc_perm q_perm;
+	time_t q_stime;			/* last msgsnd time */
+	time_t q_rtime;			/* last msgrcv time */
+	time_t q_ctime;			/* last change time */
+	unsigned long q_cbytes;		/* current number of bytes on queue */
+	unsigned long q_qnum;		/* number of messages in queue */
+	unsigned long q_qbytes;		/* max number of bytes on queue */
+	pid_t q_lspid;			/* pid of last msgsnd */
+	pid_t q_lrpid;			/* last receive pid */
+
+	struct list_head q_messages;
+	struct list_head q_receivers;
+	struct list_head q_senders;
+};
+
+/* Helper routines for sys_msgsnd and sys_msgrcv */
+extern long do_msgsnd(int msqid, long mtype, void __user *mtext,
+			size_t msgsz, int msgflg);
+extern long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp,
+		      int msgflg,
+		      long (*msg_fill)(void __user *, struct msg_msg *,
+				       size_t));
+
+#endif /* _LINUX_MSG_H */