src/third_party/WebKit/Source/modules/indexeddb/IDBPendingTransactionMonitor.cpp

   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 "modules/indexeddb/IDBPendingTransactionMonitor.h"
  28
  29 #include "core/dom/ExecutionContext.h"
  30 #include "modules/indexeddb/IDBTransaction.h"
  31
  32 namespace blink {
  33
  34 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(IDBPendingTransactionMonitor)
  35
  36 const char* IDBPendingTransactionMonitor::supplementName()
  37 {
  38     return "IDBPendingTransactionMonitor";
  39 }
  40
  41 inline IDBPendingTransactionMonitor::IDBPendingTransactionMonitor()
  42 {
  43 }
  44
  45 IDBPendingTransactionMonitor& IDBPendingTransactionMonitor::from(WillBeHeapSupplementable<ExecutionContext>& context)
  46 {
  47     IDBPendingTransactionMonitor* supplement = static_cast<IDBPendingTransactionMonitor*>(WillBeHeapSupplement<ExecutionContext>::from(context, supplementName()));
  48     if (!supplement) {
  49         supplement = new IDBPendingTransactionMonitor();
  50         provideTo(context, supplementName(), adoptPtrWillBeNoop(supplement));
  51     }
  52     return *supplement;
  53 }
  54
  55 void IDBPendingTransactionMonitor::addNewTransaction(IDBTransaction& transaction)
  56 {
  57     m_transactions.append(&transaction);
  58 }
  59
  60 void IDBPendingTransactionMonitor::deactivateNewTransactions()
  61 {
  62     for (size_t i = 0; i < m_transactions.size(); ++i)
  63         m_transactions[i]->setActive(false);
  64     // FIXME: Exercise this call to clear() in a layout test.
  65     m_transactions.clear();
  66 }
  67
  68 void IDBPendingTransactionMonitor::trace(Visitor* visitor)
  69 {
  70 #if ENABLE(OILPAN)
  71     visitor->trace(m_transactions);
  72 #endif
  73     WillBeHeapSupplement<ExecutionContext>::trace(visitor);
  74 }
  75
  76 } // namespace blink