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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "IDBPendingTransactionMonitor.h"
     28 #include "IDBTransactionBackendInterface.h"
     29 
     30 #if ENABLE(INDEXED_DATABASE)
     31 
     32 namespace WebCore {
     33 
     34 Vector<IDBTransactionBackendInterface*>* IDBPendingTransactionMonitor::m_transactions = 0;
     35 
     36 void IDBPendingTransactionMonitor::addPendingTransaction(IDBTransactionBackendInterface* transaction)
     37 {
     38     if (!m_transactions)
     39         m_transactions = new Vector<IDBTransactionBackendInterface*>();
     40     m_transactions->append(transaction);
     41 }
     42 
     43 void IDBPendingTransactionMonitor::removePendingTransaction(IDBTransactionBackendInterface* transaction)
     44 {
     45     if (!m_transactions)
     46         return;
     47 
     48     size_t pos = m_transactions->find(transaction);
     49     if (pos == notFound)
     50         return;
     51 
     52     m_transactions->remove(pos);
     53 
     54     if (!m_transactions->size()) {
     55         delete m_transactions;
     56         m_transactions = 0;
     57     }
     58 }
     59 
     60 void IDBPendingTransactionMonitor::abortPendingTransactions()
     61 {
     62     if (!m_transactions)
     63         return;
     64 
     65     for (size_t i = 0; i < m_transactions->size(); ++i)
     66         m_transactions->at(i)->abort();
     67 
     68     delete m_transactions;
     69     m_transactions = 0;
     70 }
     71 
     72 };
     73 #endif // ENABLE(INDEXED_DATABASE)
     74