147 lines
4.4 KiB
C++
147 lines
4.4 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: dl_list.h /main/5 1996/06/11 17:24:17 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 Unpublished -- rights reserved under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 _dl_list_h
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#define _dl_list_h 1
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#include "utility/filter.h"
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#include "object/composite.h"
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#include "index/index.h"
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#include "object/oid_list.h"
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#include "object/dl_list_cell.h"
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/***************************************
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* dl_list class.
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****************************************/
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class dl_list: public composite
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{
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public:
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dl_list(c_code_t = DL_LIST_CODE);
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dl_list(const dl_list&);
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virtual ~dl_list();
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void init_data_member(c_index_handlerPtr* indices,
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int num_indices
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);
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MMDB_SIGNATURES(dl_list);
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/*
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// value comparison functions
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virtual Boolean value_EQ(root&, Boolean safe = true) const ;
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virtual Boolean value_LS(root&, Boolean safe = true) const ;
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*/
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virtual oid_t get_first_oid(const handler& query, int index);
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// insert component functions. new_cell and old_cell
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// are handlers to dl_list_cells already existing on
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// the store
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Boolean insert_before(dl_list_cell_handler& new_cell,
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dl_list_cell_handler& old_cell
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);
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Boolean insert_after(dl_list_cell_handler& new_cell,
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dl_list_cell_handler& old_cell
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);
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// insert as head/tail cell. new_cell is a handler to a
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// del_list_cell already existing on the store
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Boolean insert_as_head(const dl_list_cell_handler& new_cell);
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Boolean insert_as_tail(dl_list_cell_handler& new_cell);
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// iteration over components
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virtual handler* get_component(int index) ;
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// get a set of locs for element objects satisfying a 'query'
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// 'index' indicates the index to be used.
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virtual oid_list_handler* get_locs(handler& query, int index)
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;
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// first/last cell's oid.
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oid_t first_cell_oid() const ;
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oid_t last_cell_oid() const ;
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// init/quit batch index
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void batch_index_begin();
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void batch_index_end();
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// read in a set of object instances. Used with
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// batch_index_begin() and batch_index_end() to
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// load a mixed object stream
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io_status batch_asciiIn(istream& s);
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// instance in/out function
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virtual io_status asciiOut(ostream&) ;
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virtual io_status asciiIn(istream&) ;
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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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void commit();
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protected:
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Boolean insert_to_indices(const dl_list_cell_handler& new_cell);
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protected:
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oid_t v_dl_list_head;
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oid_t v_dl_list_tail;
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c_index_handlerPtr *v_indices;
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unsigned int v_num_indices;
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};
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HANDLER_SIGNATURES(dl_list)
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#endif
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