diff options
Diffstat (limited to 'mdk-stage1/dietlibc/include/sys/msg.h')
| -rw-r--r-- | mdk-stage1/dietlibc/include/sys/msg.h | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/mdk-stage1/dietlibc/include/sys/msg.h b/mdk-stage1/dietlibc/include/sys/msg.h index ea1e470b6..564fd9472 100644 --- a/mdk-stage1/dietlibc/include/sys/msg.h +++ b/mdk-stage1/dietlibc/include/sys/msg.h @@ -1,9 +1,53 @@ #ifndef _SYS_MSG_H #define _SYS_MSG_H -#include <linux/msg.h> #include <sys/ipc.h> -#include <asm/page.h> + +/* ipcs ctl commands */ +#define MSG_STAT 11 +#define MSG_INFO 12 + +/* msgrcv options */ +#define MSG_NOERROR 010000 /* no error if message is too big */ +#define MSG_EXCEPT 020000 /* recv any msg except of specified type.*/ + +struct msqid_ds { + struct ipc_perm msg_perm; + struct msg *msg_first; /* first message on queue,unused */ + struct msg *msg_last; /* last message in queue,unused */ + time_t msg_stime; /* last msgsnd time */ + time_t msg_rtime; /* last msgrcv time */ + time_t msg_ctime; /* last change time */ + unsigned long msg_lcbytes; /* Reuse junk fields for 32 bit */ + unsigned long msg_lqbytes; /* ditto */ + unsigned short msg_cbytes; /* current number of bytes on queue */ + unsigned short msg_qnum; /* number of messages in queue */ + unsigned short msg_qbytes; /* max number of bytes on queue */ + pid_t msg_lspid; /* pid of last msgsnd */ + pid_t msg_lrpid; /* last receive pid */ +}; + +/* message buffer for msgsnd and msgrcv calls */ +struct msgbuf { + long mtype; /* type of message */ + char mtext[1]; /* message text */ +}; + +/* buffer for msgctl calls IPC_INFO, MSG_INFO */ +struct msginfo { + int msgpool; + int msgmap; + int msgmax; + int msgmnb; + int msgmni; + int msgssz; + int msgtql; + unsigned short msgseg; +}; + +#define MSGMNI 16 /* <= IPCMNI */ /* max # of msg queue identifiers */ +#define MSGMAX 8192 /* <= INT_MAX */ /* max size of message (bytes) */ +#define MSGMNB 16384 /* <= INT_MAX */ /* default max size of a message queue */ extern int msgctl (int msqid, int cmd, struct msqid_ds *buf) __THROW; extern int msgget (key_t key, int msgflg) __THROW; |