2003-11-01 18:53:41 +01:00
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/* -*-mode: C; fill-column: 78; c-basic-offset: 4; -*- */
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/*
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2006-01-08 02:25:02 +01:00
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* Copyright 2001 by Eric House (xwords@eehouse.org). All rights reserved.
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2003-11-01 18:53:41 +01:00
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _FRANKGAMESDB_H_
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#define _FRANKGAMESDB_H_
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#include <assert.h>
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#include <ctype.h>
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#include "sys.h"
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#include "gui.h"
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#include "comtypes.h"
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#include "mempool.h"
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/* #include "ebm_object.h" */
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struct DBRecord {
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U16 length;
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void* datum;
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XP_UCHAR* name;
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};
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class CGamesDB {
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private:
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U16 nRecordsUsed;
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U16 nRecordsAllocated;
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DBRecord* fRecords;
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S16 lockedIndex;
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ebo_name_t xwfile;
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void readFromFile( const ebo_name_t* xwfile );
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void writeToFile();
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void ensureSpace( U16 nNeeded );
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MPSLOT
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public:
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/* create or open if already exists */
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CGamesDB(MPFORMAL const XP_UCHAR* fileName);
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/* commit optimized in-memory representation to a flat "file" */
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~CGamesDB();
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/* Return a ptr (read-only by convention!!) to the beginning of the
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record's data. The ptr's valid until recordRelease is called. */
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void* getNthRecord( U16 index, U16* recordLen );
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void recordRelease( U16 index );
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XP_UCHAR* getNthName( U16 index );
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/* put data into a record, adding a new one, replacing or appending to an
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existing one */
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void putNthRecord( U16 index, void* ptr, U16 len );
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void appendNthRecord( U16 index, void* ptr, U16 len );
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void putNthName( U16 index, XP_UCHAR* name );
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U16 duplicateNthRecord( U16 index );
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void removeNthRecord( U16 index );
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/* how many records do I have. indices passed by getter methods that are
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>= this number are illegal. setters can pass a number = to this, in
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which case we create a new record. */
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U16 countRecords();
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};
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#endif
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