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 "IDBTransaction.h" 29#include <mutex> 30#include <wtf/ThreadSpecific.h> 31 32using WTF::ThreadSpecific; 33 34#if ENABLE(INDEXED_DATABASE) 35 36namespace WebCore { 37 38typedef Vector<RefPtr<IDBTransaction>> TransactionList; 39 40static ThreadSpecific<TransactionList>& transactions() 41{ 42 // FIXME: Move the Vector to ScriptExecutionContext to avoid dealing with 43 // thread-local storage. 44 static std::once_flag onceFlag; 45 static ThreadSpecific<TransactionList>* transactions; 46 std::call_once(onceFlag, []{ 47 transactions = new ThreadSpecific<TransactionList>; 48 }); 49 50 return *transactions; 51} 52 53void IDBPendingTransactionMonitor::addNewTransaction(PassRefPtr<IDBTransaction> transaction) 54{ 55 transactions()->append(transaction); 56} 57 58void IDBPendingTransactionMonitor::deactivateNewTransactions() 59{ 60 ThreadSpecific<TransactionList>& list = transactions(); 61 for (size_t i = 0; i < list->size(); ++i) { 62 RefPtr<IDBTransaction> transaction = list->at(i); 63 transaction->setActive(false); 64 } 65 // FIXME: Exercise this call to clear() in a layout test. 66 list->clear(); 67} 68 69}; 70#endif // ENABLE(INDEXED_DATABASE) 71