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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 "modules/indexeddb/IDBPendingTransactionMonitor.h"
     28 #include "modules/indexeddb/IDBTransaction.h"
     29 #include "wtf/ThreadSpecific.h"
     30 #include "wtf/Threading.h"
     31 
     32 using WTF::ThreadSpecific;
     33 
     34 namespace WebCore {
     35 
     36 typedef Vector<RefPtr<IDBTransaction> > TransactionList;
     37 static ThreadSpecific<TransactionList>& transactions()
     38 {
     39     // FIXME: Move the Vector to ExecutionContext to avoid dealing with
     40     // thread-local storage.
     41     AtomicallyInitializedStatic(ThreadSpecific<TransactionList>*, transactions = new ThreadSpecific<TransactionList>);
     42     return *transactions;
     43 }
     44 
     45 void IDBPendingTransactionMonitor::addNewTransaction(PassRefPtr<IDBTransaction> transaction)
     46 {
     47     transactions()->append(transaction);
     48 }
     49 
     50 void IDBPendingTransactionMonitor::deactivateNewTransactions()
     51 {
     52     ThreadSpecific<TransactionList>& list = transactions();
     53     for (size_t i = 0; i < list->size(); ++i) {
     54         RefPtr<IDBTransaction> transaction = list->at(i);
     55         transaction->setActive(false);
     56     }
     57     // FIXME: Exercise this call to clear() in a layout test.
     58     list->clear();
     59 }
     60 
     61 };
     62