111 lines
3.2 KiB
C++
111 lines
3.2 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: disk_bucket.h /main/4 1996/06/11 17:16:05 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 Unpublished -- rights reserved under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 _disk_bucket_h
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#define _disk_bucket_h
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#include "storage/page.h"
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#include "storage/page_storage.h"
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class disk_bucket
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{
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public:
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disk_bucket(int bucket_num, page_storage* store);
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virtual ~disk_bucket();
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// update
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//void set_k(int new_k) { v_k = new_k; };
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//void set_r(int new_rotate) { v_r = new_rotate; } ;
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void set_overflow(Boolean ov) { v_overflowed = ov; } ;
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//int k() { return v_k; };
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//int r() { return v_r; };
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Boolean overflow() { return v_overflowed; };
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// update
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int insert(data_t*);
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Boolean remove(int ind);
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void remove_all();
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Boolean member(data_t& v, int& slot_num);
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int first() { int ind = 0; next(ind); return ind; };
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data_t* operator()(int ind);
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void next(int& ind) { ind = ( ind >= count() ) ? 0 : ind+1; };
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int count() { return MAX(0, bucket_page() -> count() - 2); };
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Boolean empty() { return ( count() == 0 ) ? true : false; };
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int bnum() { return v_bucket_num; };
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ostream& asciiOut(ostream& out, print_func_ptr_t print_f);
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friend ostream& operator<<(ostream&, disk_bucket&);
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protected:
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void init_params();
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void sync_params();
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page* bucket_page();
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protected:
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int v_bucket_num;
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page_storage* v_key_store;
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Boolean v_overflowed;
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//unsigned int v_k;
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//unsigned int v_r;
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buffer& buf;
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};
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typedef disk_bucket* disk_bucketPtr;
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#endif
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