92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* $XConsortium: imp_bucket.h /main/4 1996/07/18 14:32:27 drk $
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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 Unpublished -- rights reserved under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 _imp_bucket_h
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#define _imp_bucket_h
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#include "utility/funcs.h"
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#include "utility/pm_random.h"
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#include "dstr/dlist.h"
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#include "dynhash/data_t.h"
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/*******************************/
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// An imp_bucket object forms
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// a second level hash function
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/*******************************/
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class imp_bucket : public dlist
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{
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protected:
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int k; // valye k used in H_{{2M_j}^2}()
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int rotate; // rotate value for this key subset
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public:
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imp_bucket();
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virtual ~imp_bucket();
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data_t* operator()(long ind);
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int h(int key, int prime, int M); //hash function H_{{2M_j}^2}()
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Boolean empty() ; //bucket empty?
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Boolean insert(data_t*);
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data_t* remove_all();
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ostream& asciiOut(ostream& out, print_func_ptr_t print_f);
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friend ostream& operator<<(ostream&, imp_bucket&);
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friend class imp_die;
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};
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typedef imp_bucket* imp_bucketPtr;
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#endif
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