#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; int 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, long *pmtype, void __user *mtext, size_t msgsz, long msgtyp, int msgflg); #endif /* _LINUX_MSG_H */