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TransactionManager.cpp
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TransactionManager.cpp
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/*
This file is part of the Zero Reserve Plugin for Retroshare.
Zero Reserve is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Zero Reserve is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with Zero Reserve. If not, see <http://www.gnu.org/licenses/>.
*/
#include "TransactionManager.h"
#include "TmLocalCohorte.h"
#include "TmRemoteCohorte.h"
#include "RSZeroReserveItems.h"
#include "RSZRRemoteItems.h"
#include "ZeroReservePlugin.h"
#include "p3ZeroReserverRS.h"
#include "Payment.h"
#include "zrtypes.h"
#include "Router.h"
#include <stdexcept>
#include <sstream>
TransactionManager::TxManagers TransactionManager::currentTX;
/**
* @brief Handle remote Transaction Items
* @param item
* @return
*/
int TransactionManager::handleTxItem( RSZRRemoteTxItem * item )
{
ZR::RetVal retVal;
std::cerr << "Zero Reserve: TX Manger handling incoming item - Destination: " << item->getAddress() << std::endl;
p3ZeroReserveRS * p3zr = static_cast< p3ZeroReserveRS* >( g_ZeroReservePlugin->rs_pqi_service() );
ZR::TransactionId txId = item->getAddress() + ":" + item->getPayerId();
std::cerr << "\n\nXXXXXXXXXXXXXXXX " << txId << std::endl;
TransactionManager * tm;
TxManagers::iterator it = currentTX.find( txId );
if( it == currentTX.end() ){
tm = new TmRemoteCohorte( txId );
}
else {
tm = (*it).second;
}
try{
retVal = tm->processItem( item );
}
catch( std::runtime_error e){
std::cerr << "Zero Reserve: Exception caught: " << e.what() << std::endl;
return ZR::ZR_FAILURE;
}
if( retVal != ZR::ZR_SUCCESS ){
delete tm;
}
return retVal;
}
/**
* @brief Handle local Transaction Items
* @param item
* @return success or failure
*/
int TransactionManager::handleTxItem( RsZeroReserveTxItem * item )
{
std::cerr << "Zero Reserve: TX Manger handling incoming item id = " << item->getTxId() << std::endl;
ZR::TransactionId txId = item->getTxId();
TransactionManager * tm;
TxManagers::iterator it = currentTX.find( txId );
if( it == currentTX.end() ){
tm = new TmLocalCohorte( txId );
}
else {
tm = (*it).second;
}
ZR::RetVal retVal = tm->processItem( item );
if( retVal != ZR::ZR_SUCCESS ){
delete tm;
}
return retVal;
}
void TransactionManager::timeout()
{
for( TxManagers::iterator it = currentTX.begin(); it != currentTX.end(); it++ ){
TransactionManager * tm = (*it).second;
if( tm->isTimedOut() ){
tm->rollback();
delete tm;
}
}
}
TransactionManager::TransactionManager( const ZR::TransactionId & txId ) :
m_TxId( txId ),
m_Phase( INIT ),
m_startOfPhase( QDateTime::currentMSecsSinceEpoch() )
{
m_maxTime[ INIT ] = 5000;
m_maxTime[ QUERY ] = 5000;
m_maxTime[ VOTE_YES ] = 5000;
m_maxTime[ VOTE_NO ] = 5000;
m_maxTime[ COMMIT ] = 5000;
m_maxTime[ ACK_COMMIT ] = 5000;
m_maxTime[ ABORT ] = 5000;
currentTX[ txId ] = this;
}
TransactionManager::~TransactionManager()
{
std::cerr << "Zero Reserve: TX Manager: Cleaning up." << std::endl;
currentTX.erase( m_TxId );
}
bool TransactionManager::isTimedOut()
{
return ( QDateTime::currentMSecsSinceEpoch() - m_startOfPhase > m_maxTime[ m_Phase ] );
}