Import of Linus's Linux 1.1.68

1 files changed, 65 insertions, 0 deletions

diff --git a/include/linux/ipc.h b/include/linux/ipc.h
new file mode 100644
index 000000000..a7a841724
--- /dev/null
+++ b/include/linux/ipc.h
@@ -0,0 +1,65 @@
+#ifndef _LINUX_IPC_H
+#define _LINUX_IPC_H
+#include <linux/types.h>
+
+typedef int key_t; 		/* should go in <types.h> type for IPC key */
+#define IPC_PRIVATE ((key_t) 0)  
+
+struct ipc_perm
+{
+  key_t  key;
+  ushort uid;   /* owner euid and egid */
+  ushort gid;
+  ushort cuid;  /* creator euid and egid */
+  ushort cgid;
+  ushort mode;  /* access modes see mode flags below */
+  ushort seq;   /* sequence number */
+};
+
+
+/* resource get request flags */
+#define IPC_CREAT  00001000   /* create if key is nonexistent */
+#define IPC_EXCL   00002000   /* fail if key exists */
+#define IPC_NOWAIT 00004000   /* return error on wait */
+
+
+/* 
+ * Control commands used with semctl, msgctl and shmctl 
+ * see also specific commands in sem.h, msg.h and shm.h
+ */
+#define IPC_RMID 0     /* remove resource */
+#define IPC_SET  1     /* set ipc_perm options */
+#define IPC_STAT 2     /* get ipc_perm options */
+#define IPC_INFO 3     /* see ipcs */
+
+#ifdef __KERNEL__
+
+/* special shmsegs[id], msgque[id] or semary[id]  values */
+#define IPC_UNUSED	((void *) -1)
+#define IPC_NOID	((void *) -2)		/* being allocated/destroyed */
+
+/* 
+ * These are used to wrap system calls. See ipc/util.c.
+ */
+struct ipc_kludge {
+    struct msgbuf *msgp;
+    long msgtyp;
+};
+
+#define SEMOP	 	1
+#define SEMGET 		2
+#define SEMCTL 		3
+#define MSGSND 		11
+#define MSGRCV 		12
+#define MSGGET 		13
+#define MSGCTL 		14
+#define SHMAT 		21
+#define SHMDT 		22
+#define SHMGET 		23
+#define SHMCTL 		24
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_IPC_H */
+
+