linux - include/linux/msg.h

35 lines · 1009 B

1	#ifndef _LINUX_MSG_H
2	#define _LINUX_MSG_H
3
4	#include <linux/list.h>
5	#include <linux/time64.h>
6	#include <uapi/linux/msg.h>
7
8	/* one msg_msg structure for each message */
9	struct msg_msg {
10	struct list_head m_list;
11	long m_type;
12	size_t m_ts; /* message text size */
13	struct msg_msgseg *next;
14	void *security;
15	/* the actual message follows immediately */
16	};
17
18	/* one msq_queue structure for each present queue on the system */
19	struct msg_queue {
20	struct kern_ipc_perm q_perm;
21	time64_t q_stime; /* last msgsnd time */
22	time64_t q_rtime; /* last msgrcv time */
23	time64_t q_ctime; /* last change time */
24	unsigned long q_cbytes; /* current number of bytes on queue */
25	unsigned long q_qnum; /* number of messages in queue */
26	unsigned long q_qbytes; /* max number of bytes on queue */
27	pid_t q_lspid; /* pid of last msgsnd */
28	pid_t q_lrpid; /* last receive pid */
29
30	struct list_head q_messages;
31	struct list_head q_receivers;
32	struct list_head q_senders;
33	} __randomize_layout;
34
35	#endif /* _LINUX_MSG_H */