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+/* 
+ * Mach Operating System
+ * Copyright (c) 1991,1990,1989 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+/*
+ *	File:	ipc/ipc_hash.h
+ *	Author:	Rich Draves
+ *	Date:	1989
+ *
+ *	Declarations of entry hash table operations.
+ */
+
+#ifndef	_IPC_IPC_HASH_H_
+#define _IPC_IPC_HASH_H_
+
+#include <mach_ipc_debug.h>
+
+#include <mach/boolean.h>
+#include <mach/kern_return.h>
+
+extern void
+ipc_hash_init();
+
+#if	MACH_IPC_DEBUG
+
+extern unsigned int
+ipc_hash_info(/* hash_info_bucket_t *, unsigned int */);
+
+#endif	MACH_IPC_DEBUG
+
+extern boolean_t
+ipc_hash_lookup(/* ipc_space_t space, ipc_object_t obj,
+		   mach_port_t *namep, ipc_entry_t *entryp */);
+
+extern void
+ipc_hash_insert(/* ipc_space_t space, ipc_object_t obj,
+		   mach_port_t name, ipc_entry_t entry */);
+
+extern void
+ipc_hash_delete(/* ipc_space_t space, ipc_object_t obj,
+		   mach_port_t name, ipc_entry_t entry */);
+
+/*
+ *	For use by functions that know what they're doing:
+ *	the global primitives, for splay tree entries,
+ *	and the local primitives, for table entries.
+ */
+
+extern boolean_t
+ipc_hash_global_lookup(/* ipc_space_t space, ipc_object_t obj,
+			  mach_port_t *namep, ipc_tree_entry_t *entryp */);
+
+extern void
+ipc_hash_global_insert(/* ipc_space_t space, ipc_object_t obj,
+			  mach_port_t name, ipc_tree_entry_t entry */);
+
+extern void
+ipc_hash_global_delete(/* ipc_space_t space, ipc_object_t obj,
+			  mach_port_t name, ipc_tree_entry_t entry */);
+
+extern boolean_t
+ipc_hash_local_lookup(/* ipc_space_t space, ipc_object_t obj,
+			 mach_port_t *namep, ipc_entry_t *entryp */);
+
+extern void
+ipc_hash_local_insert(/* ipc_space_t space, ipc_object_t obj,
+			 mach_port_index_t index, ipc_entry_t entry */);
+
+extern void
+ipc_hash_local_delete(/* ipc_space_t space, ipc_object_t obj,
+			 mach_port_index_t index, ipc_entry_t entry */);
+
+#endif	_IPC_IPC_HASH_H_