mirror of
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0785d204f7
and moved some code. Improve portability ndb/include/kernel/signaldata/SignalData.hpp: Removed macros ndb/include/mgmcommon/MgmtErrorReporter.hpp: Removed macros ndb/include/util/Bitmask.hpp: Removed macros ndb/src/common/debugger/SignalLoggerManager.cpp: Moved printSegmented to src/kernel/vm ndb/src/kernel/Main.cpp: Removed macros ndb/src/kernel/blocks/dbtux/Dbtux.hpp: Removed macros ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp: Removed macros ndb/src/kernel/blocks/ndbfs/MemoryChannel.hpp: Removed macros ndb/src/kernel/blocks/ndbfs/Pool.hpp: Removed macros ndb/src/kernel/error/ErrorReporter.hpp: Removed macros ndb/src/kernel/vm/MetaData.cpp: Removed macros ndb/src/kernel/vm/SimulatedBlock.cpp: Removed macros ndb/src/kernel/vm/SimulatedBlock.hpp: Removed macros ndb/src/kernel/vm/TransporterCallback.cpp: Moved printSegmented to src/kernel/vm ndb/src/mgmclient/CommandInterpreter.cpp: Removed macros ndb/src/mgmsrv/MgmtSrvr.cpp: Removed macros ndb/src/ndbapi/TransporterFacade.cpp: Removed macros
114 lines
2.8 KiB
C++
114 lines
2.8 KiB
C++
/* Copyright (C) 2003 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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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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#include "MetaData.hpp"
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#include "SimulatedBlock.hpp"
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#include <blocks/dbdict/Dbdict.hpp>
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#include <blocks/dbdih/Dbdih.hpp>
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// MetaData::Common
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MetaData::Common::Common(Dbdict& dbdict, Dbdih& dbdih) :
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m_dbdict(dbdict),
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m_dbdih(dbdih)
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{
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m_lock[false] = m_lock[true] = 0;
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}
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// MetaData::Table
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// MetaData
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MetaData::MetaData(Common& common) :
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m_common(common)
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{
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m_lock[false] = m_lock[true] = 0;
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}
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MetaData::MetaData(SimulatedBlock* block) :
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m_common(*block->getMetaDataCommon())
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{
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m_lock[false] = m_lock[true] = 0;
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}
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MetaData::~MetaData()
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{
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for (int i = false; i <= true; i++) {
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assert(m_common.m_lock[i] >= m_lock[i]);
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m_common.m_lock[i] -= m_lock[i];
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m_lock[i] = 0;
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}
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}
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int
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MetaData::lock(bool exclusive)
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{
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if (m_common.m_lock[true] > m_lock[true]) {
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// locked exclusively by another instance
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return MetaData::Locked;
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}
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m_lock[exclusive]++;
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m_common.m_lock[exclusive]++;
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return 0;
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}
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int
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MetaData::unlock(bool exclusive)
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{
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if (m_lock[exclusive] == 0) {
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return MetaData::NotLocked;
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}
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m_lock[exclusive]--;
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m_common.m_lock[exclusive]--;
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return 0;
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}
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int
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MetaData::getTable(MetaData::Table& table, Uint32 tableId, Uint32 tableVersion)
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{
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if (m_lock[false] + m_lock[true] == 0) {
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return MetaData::NotLocked;
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}
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return m_common.m_dbdict.getMetaTable(table, tableId, tableVersion);
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}
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int
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MetaData::getTable(MetaData::Table& table, const char* tableName)
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{
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if (m_lock[false] + m_lock[true] == 0) {
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return MetaData::NotLocked;
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}
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return m_common.m_dbdict.getMetaTable(table, tableName);
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}
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int
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MetaData::getAttribute(MetaData::Attribute& attribute, const MetaData::Table& table, Uint32 attributeId)
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{
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if (m_lock[false] + m_lock[true] == 0) {
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return MetaData::NotLocked;
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}
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return m_common.m_dbdict.getMetaAttribute(attribute, table, attributeId);
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}
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int
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MetaData::getAttribute(MetaData::Attribute& attribute, const MetaData::Table& table, const char* attributeName)
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{
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if (m_lock[false] + m_lock[true] == 0) {
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return MetaData::NotLocked;
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}
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return m_common.m_dbdict.getMetaAttribute(attribute, table, attributeName);
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}
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