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      1 /*
      2  * Copyright (C) 2013 Apple 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  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "modules/webdatabase/DatabaseBackendSync.h"
     28 
     29 #include "modules/webdatabase/DatabaseBackendContext.h"
     30 #include "modules/webdatabase/DatabaseTracker.h"
     31 
     32 namespace WebCore {
     33 
     34 DatabaseBackendSync::DatabaseBackendSync(PassRefPtr<DatabaseBackendContext> databaseContext, const String& name, const String& expectedVersion, const String& displayName, unsigned long estimatedSize)
     35     : DatabaseBackendBase(databaseContext, name, expectedVersion, displayName, estimatedSize, DatabaseType::Sync)
     36 {
     37 }
     38 
     39 DatabaseBackendSync::~DatabaseBackendSync()
     40 {
     41     // SQLite is "multi-thread safe", but each database handle can only be used
     42     // on a single thread at a time.
     43     //
     44     // For DatabaseBackendSync, we open the SQLite database on the script context
     45     // thread. And hence we should also close it on that same thread. This means
     46     // that the SQLite database need to be closed here in the destructor.
     47 
     48     ASSERT(m_databaseContext->isContextThread());
     49     if (opened())
     50         closeDatabase();
     51 }
     52 
     53 bool DatabaseBackendSync::openAndVerifyVersion(bool setVersionInNewDatabase, DatabaseError& error, String& errorMessage)
     54 {
     55     DatabaseTracker::tracker().prepareToOpenDatabase(this);
     56     return performOpenAndVerify(setVersionInNewDatabase, error, errorMessage);
     57 }
     58 
     59 } // namespace WebCore
     60