70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
/*
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* $XConsortium: hash.h /main/4 1996/06/11 17:21:59 cde-hal $
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*
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* Copyright (c) 1993 HAL Computer Systems International, Ltd.
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* All rights reserved. Unpublished -- rights reserved under
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* the Copyright Laws of the United States. USE OF A COPYRIGHT
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* NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
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* OR DISCLOSURE.
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*
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* THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
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* SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD. USE,
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* DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
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* PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
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* INTERNATIONAL, LTD.
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*
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* RESTRICTED RIGHTS LEGEND
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* Use, duplication, or disclosure by the Government is subject
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* to the restrictions as set forth in subparagraph (c)(l)(ii)
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* of the Rights in Technical Data and Computer Software clause
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* at DFARS 252.227-7013.
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*
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* HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
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* 1315 Dell Avenue
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* Campbell, CA 95008
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*
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*/
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#ifndef _hash_h
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#define _hash_h 1
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//#include <assert.h>
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#include "utility/buffer.h"
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#include "utility/key.h"
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class hash
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{
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public:
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hash();
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virtual ~hash() ;
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virtual void init_data_member(unsigned int v_key_set_sz = 0,
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unsigned int v_hash_func_sz = 0,
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unsigned int v_hash_tbl_sz = 0);
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// status inquiry functions
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virtual int keysetsize() const { return v_key_set_sz; };
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virtual int hashtablesize() const { return v_hash_tbl_sz; };
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virtual int hashfuncsize() const { return v_hash_func_sz; };
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// return the hash value for a key
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virtual int hashTo(const key_type&) = 0;
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// load a set of key-oid pairs
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virtual Boolean load() { return false; };
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// compacted disk representation In and Out functions
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virtual int cdr_sizeof();
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virtual io_status cdrOut(buffer&);
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virtual io_status cdrIn(buffer&);
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protected:
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unsigned int v_key_set_sz;
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unsigned int v_hash_func_sz;
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unsigned int v_hash_tbl_sz;
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};
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#endif
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