115 lines
3.3 KiB
C
115 lines
3.3 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: bucket_array.cc /main/3 1996/06/11 17:15:51 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 Unpublished -- rights reserved under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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#include "diskhash/bucket_array.h"
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bucket_array::bucket_array(int bs, page_storage* k_store):
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v_key_store(k_store), v_cached_bucket_ptr(0)
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{
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//////////////////////////////////////
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// physically add buckets to the store
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//////////////////////////////////////
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if ( v_key_store -> pages() == 1 ) {
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v_buckets = 0;
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expandWith(bs);
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} else
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v_buckets = bs;
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}
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bucket_array::~bucket_array()
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{
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delete v_cached_bucket_ptr;
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}
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Boolean bucket_array::expandWith(int extra_buckets)
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{
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v_key_store -> add_page_frames(extra_buckets);
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for ( int i=v_buckets; i<v_buckets+extra_buckets; i++ ) {
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disk_bucket* x = new disk_bucket(i, v_key_store);
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delete x;
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}
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v_buckets += extra_buckets;
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return true;
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}
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disk_bucket& bucket_array::get_bucket(int i)
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{
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//MESSAGE(cerr, form("to get bucket %d", i));
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if ( v_cached_bucket_ptr == 0 || v_cached_bucket_ptr -> bnum() != i ) {
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//if ( v_cached_bucket_ptr )
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//MESSAGE(cerr, form("free bucket %d %d",
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// v_cached_bucket_ptr -> bnum(), int(v_cached_bucket_ptr)));
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delete v_cached_bucket_ptr;
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v_cached_bucket_ptr = new disk_bucket(i, v_key_store);
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//MESSAGE(cerr, form("new bucket %d %d",
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//int(v_cached_bucket_ptr), v_cached_bucket_ptr -> bnum()));
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}
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return *v_cached_bucket_ptr;
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}
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ostream& bucket_array::asciiOut(ostream& out, print_func_ptr_t)
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{
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return out;
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}
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ostream& operator<<(ostream& out, bucket_array&)
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{
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return out;
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}
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