KeywordsTable.cpp

/*
 * The contents of this file are subject to the Initial
 * Developer's Public License Version 1.0 (the "License");
 * you may not use this file except in compliance with the
 * License. You may obtain a copy of the License at
 * http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
 *
 * Software distributed under the License is distributed AS IS,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied.
 * See the License for the specific language governing rights
 * and limitations under the License.
 *
 * The Original Code was created by Adriano dos Santos Fernandes
 * for the Firebird Open Source RDBMS project.
 *
 * Copyright (c) 2021 Adriano dos Santos Fernandes <adrianosf@gmail.com>
 * and all contributors signed below.
 *
 * All Rights Reserved.
 * Contributor(s): ______________________________________.
*/

#include"../jrd/KeywordsTable.h"
#include"../jrd/ini.h"
#include"../jrd/ids.h"
#include"../common/Token.h"

usingnamespaceJrd;
usingnamespaceFirebird;


RecordBuffer* KeywordsTable::getRecords(thread_db* tdbb, jrd_rel* relation)
{
fb_assert(relation);
fb_assert(relation->rel_id == rel_keywords);

auto recordBuffer = getData(relation);
if (recordBuffer)
return recordBuffer;

 recordBuffer = allocBuffer(tdbb, *tdbb->getDefaultPool(), relation->rel_id);

constauto record = recordBuffer->getTempRecord();

for (constauto& token : tdbb->getDatabase()->dbb_keywords())
 {
constauto& tokenString = token.first;

if (isalpha(tokenString[0]))
 {
 record->nullify();

putField(tdbb, record,
DumpField(f_keyword_name, VALUE_STRING, tokenString.length(), tokenString.c_str()));

constbool reserved = !token.second.nonReserved;
putField(tdbb, record, DumpField(f_keyword_reserved, VALUE_BOOLEAN, 1, &reserved));

 recordBuffer->store(record);
 }
 }

return recordBuffer;
}


//--------------------------------------


voidKeywordsTableScan::close(thread_db* tdbb) const
{
constauto request = tdbb->getRequest();
constauto impure = request->getImpure<Impure>(impureOffset);

delete impure->table;
 impure->table = nullptr;

VirtualTableScan::close(tdbb);
}

const Format* KeywordsTableScan::getFormat(thread_db* tdbb, jrd_rel* relation) const
{
constauto records = getRecords(tdbb, relation);
return records->getFormat();
}

boolKeywordsTableScan::retrieveRecord(thread_db* tdbb, jrd_rel* relation,
 FB_UINT64 position, Record* record) const
{
constauto records = getRecords(tdbb, relation);
return records->fetch(position, record);
}

RecordBuffer* KeywordsTableScan::getRecords(thread_db* tdbb, jrd_rel* relation) const
{
constauto request = tdbb->getRequest();
constauto impure = request->getImpure<Impure>(impureOffset);

if (!impure->table)
 impure->table = FB_NEW_POOL(*tdbb->getDefaultPool()) KeywordsTable(*tdbb->getDefaultPool());

return impure->table->getRecords(tdbb, relation);
}