This is my initial working version.

There is a bug in boot in this version: subhurd sometimes cannot boot.

1 files changed, 81 insertions, 0 deletions

diff --git a/pfinet.old/linux-src/include/linux/msg.h b/pfinet.old/linux-src/include/linux/msg.h
new file mode 100644
index 00000000..0312b5de
--- /dev/null
+++ b/pfinet.old/linux-src/include/linux/msg.h
@@ -0,0 +1,81 @@
+#ifndef _LINUX_MSG_H
+#define _LINUX_MSG_H
+
+#include <linux/ipc.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.*/
+
+/* one msqid structure for each queue on the system */
+struct msqid_ds {
+	struct ipc_perm msg_perm;
+	struct msg *msg_first;		/* first message on queue */
+	struct msg *msg_last;		/* last message in queue */
+	__kernel_time_t msg_stime;	/* last msgsnd time */
+	__kernel_time_t msg_rtime;	/* last msgrcv time */
+	__kernel_time_t msg_ctime;	/* last change time */
+	struct wait_queue *wwait;
+	struct wait_queue *rwait;
+	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 */
+	__kernel_ipc_pid_t msg_lspid;	/* pid of last msgsnd */
+	__kernel_ipc_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   128   /* <= 1K */     /* max # of msg queue identifiers */
+#define MSGMAX  4056   /* <= 4056 */   /* max size of message (bytes) */
+#define MSGMNB 16384   /* ? */        /* default max size of a message queue */
+#define MSGQNUM 1024   /* <=65535 */	  /* Max messages in flight / queue */
+
+/* unused */
+#define MSGPOOL (MSGMNI*MSGMNB/1024)  /* size in kilobytes of message pool */
+#define MSGTQL  MSGMNB            /* number of system message headers */
+#define MSGMAP  MSGMNB            /* number of entries in message map */
+#define MSGSSZ  16                /* message segment size */
+#define __MSGSEG ((MSGPOOL*1024)/ MSGSSZ) /* max no. of segments */
+#define MSGSEG (__MSGSEG <= 0xffff ? __MSGSEG : 0xffff)
+
+#ifdef __KERNEL__
+
+/* one msg structure for each message */
+struct msg {
+	struct msg *msg_next;   /* next message on queue */
+	long  msg_type;          
+	char *msg_spot;         /* message text address */
+	time_t msg_stime;       /* msgsnd time */
+	short msg_ts;           /* message text size */
+};
+
+asmlinkage int sys_msgget (key_t key, int msgflg);
+asmlinkage int sys_msgsnd (int msqid, struct msgbuf *msgp, size_t msgsz, int msgflg);
+asmlinkage int sys_msgrcv (int msqid, struct msgbuf *msgp, size_t msgsz, long msgtyp,
+		       int msgflg);
+asmlinkage int sys_msgctl (int msqid, int cmd, struct msqid_ds *buf);
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_MSG_H */