~drizzle-trunk/drizzle/development

1780.3.1 by David Shrewsbury
Add code to manage multi-GPB-message transactions and output them atomically.
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2010 David Shrewsbury <shrewsbury.dave@gmail.com>
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 *
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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; version 2 of the License.
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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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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/**
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 * @file
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 * Implementation of the TransactionManager class.
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 */
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#include "config.h"
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#include "drizzled/message/transaction_manager.h"
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using namespace std;
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namespace drizzled
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{
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namespace message
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{
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bool TransactionManager::store(const message::Transaction &transaction)
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{
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  string msg;
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  const message::TransactionContext trx_ctxt= transaction.transaction_context();
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  uint64_t trx_id= trx_ctxt.transaction_id();
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  transaction.SerializeToString(&msg);
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  cache[trx_id].push_back(msg);
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  return true;
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}
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bool TransactionManager::remove(uint64_t trx_id)
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{
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  cache.erase(trx_id);
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  return true;
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}
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bool TransactionManager::contains(uint64_t trx_id)
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{
1780.3.3 by David Shrewsbury
Replace std::map with boost::unordered_map
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  boost::unordered_map< uint64_t, vector<string> >::const_iterator it= cache.find(trx_id);
1780.3.1 by David Shrewsbury
Add code to manage multi-GPB-message transactions and output them atomically.
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  if (it != cache.end())
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    return true;
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  return false;
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}
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uint32_t TransactionManager::getTransactionBufferSize(uint64_t trx_id)
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{
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  return static_cast<uint32_t>(cache[trx_id].size());
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}
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bool TransactionManager::getTransactionMessage(message::Transaction &trx,
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                                               uint64_t trx_id,
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                                               uint32_t position)
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{
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  trx.ParseFromString(cache[trx_id].at(position));
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  return true;
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}
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} /* namespace message */
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} /* namespace drizzled */