Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 */
9struct 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 */
19struct 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 */