[mirror_ubuntu-bionic-kernel.git] / include / linux / msg.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_MSG_H
#define _LINUX_MSG_H

#include <linux/list.h>
#include <linux/time64.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;
	time64_t q_stime;		/* last msgsnd time */
	time64_t q_rtime;		/* last msgrcv time */
	time64_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;
} __randomize_layout;

#endif /* _LINUX_MSG_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _LINUX_MSG_H
	3	#define _LINUX_MSG_H
	4
77597ad6	5	#include <linux/list.h>
50578ea9	6	#include <linux/time64.h>
607ca46e	7	#include <uapi/linux/msg.h>
1da177e4 LT	8
	9	/* one msg_msg structure for each message */
	10	struct msg_msg {
4e9b45a1 MK	11	struct list_head m_list;
	12	long m_type;
	13	size_t m_ts; /* message text size */
239521f3	14	struct msg_msgseg *next;
1da177e4 LT	15	void *security;
	16	/* the actual message follows immediately */
	17	};
	18
	19	/* one msq_queue structure for each present queue on the system */
	20	struct msg_queue {
	21	struct kern_ipc_perm q_perm;
50578ea9 DD	22	time64_t q_stime; /* last msgsnd time */
	23	time64_t q_rtime; /* last msgrcv time */
	24	time64_t q_ctime; /* last change time */
1da177e4 LT	25	unsigned long q_cbytes; /* current number of bytes on queue */
	26	unsigned long q_qnum; /* number of messages in queue */
	27	unsigned long q_qbytes; /* max number of bytes on queue */
	28	pid_t q_lspid; /* pid of last msgsnd */
	29	pid_t q_lrpid; /* last receive pid */
	30
	31	struct list_head q_messages;
	32	struct list_head q_receivers;
	33	struct list_head q_senders;
3859a271	34	} __randomize_layout;
1da177e4	35
1da177e4	36	#endif /* _LINUX_MSG_H */