1 files changed, 0 insertions, 177 deletions
diff --git a/Source/WebCore/Modules/webdatabase/DatabaseBackend.cpp b/Source/WebCore/Modules/webdatabase/DatabaseBackend.cpp
deleted file mode 100644
index 495e86a48..000000000
--- a/Source/WebCore/Modules/webdatabase/DatabaseBackend.cpp
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * Copyright (C) 2013 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#include "config.h"
-#include "DatabaseBackend.h"
-
-#if ENABLE(SQL_DATABASE)
-
-#include "ChangeVersionData.h"
-#include "ChangeVersionWrapper.h"
-#include "DatabaseBackendContext.h"
-#include "DatabaseTask.h"
-#include "DatabaseThread.h"
-#include "DatabaseTracker.h"
-#include "Logging.h"
-#include "SQLTransaction.h"
-#include "SQLTransactionBackend.h"
-#include "SQLTransactionClient.h"
-#include "SQLTransactionCoordinator.h"
-
-namespace WebCore {
-
-DatabaseBackend::DatabaseBackend(PassRefPtr<DatabaseBackendContext> databaseContext, const String& name, const String& expectedVersion, const String& displayName, unsigned long estimatedSize)
-    : DatabaseBackendBase(databaseContext, name, expectedVersion, displayName, estimatedSize, DatabaseType::Async)
-    , m_transactionInProgress(false)
-    , m_isTransactionQueueEnabled(true)
-{
-}
-
-bool DatabaseBackend::openAndVerifyVersion(bool setVersionInNewDatabase, DatabaseError& error, String& errorMessage)
-{
-    DatabaseTaskSynchronizer synchronizer;
-    if (!databaseContext()->databaseThread() || databaseContext()->databaseThread()->terminationRequested(&synchronizer))
-        return false;
-
-    bool success = false;
-    auto task = DatabaseOpenTask::create(this, setVersionInNewDatabase, &synchronizer, error, errorMessage, success);
-    databaseContext()->databaseThread()->scheduleImmediateTask(std::move(task));
-    synchronizer.waitForTaskCompletion();
-
-    return success;
-}
-
-bool DatabaseBackend::performOpenAndVerify(bool setVersionInNewDatabase, DatabaseError& error, String& errorMessage)
-{
-    if (DatabaseBackendBase::performOpenAndVerify(setVersionInNewDatabase, error, errorMessage)) {
-        if (databaseContext()->databaseThread())
-            databaseContext()->databaseThread()->recordDatabaseOpen(this);
-
-        return true;
-    }
-
-    return false;
-}
-
-void DatabaseBackend::close()
-{
-    ASSERT(databaseContext()->databaseThread());
-    ASSERT(currentThread() == databaseContext()->databaseThread()->getThreadID());
-
-    {
-        MutexLocker locker(m_transactionInProgressMutex);
-
-        // Clean up transactions that have not been scheduled yet:
-        // Transaction phase 1 cleanup. See comment on "What happens if a
-        // transaction is interrupted?" at the top of SQLTransactionBackend.cpp.
-        RefPtr<SQLTransactionBackend> transaction;
-        while (!m_transactionQueue.isEmpty()) {
-            transaction = m_transactionQueue.takeFirst();
-            transaction->notifyDatabaseThreadIsShuttingDown();
-        }
-
-        m_isTransactionQueueEnabled = false;
-        m_transactionInProgress = false;
-    }
-
-    closeDatabase();
-
-    // DatabaseThread keeps databases alive by referencing them in its
-    // m_openDatabaseSet. DatabaseThread::recordDatabaseClose() will remove
-    // this database from that set (which effectively deref's it). We hold on
-    // to it with a local pointer here for a liitle longer, so that we can
-    // unschedule any DatabaseTasks that refer to it before the database gets
-    // deleted.
-    Ref<DatabaseBackend> protect(*this);
-    databaseContext()->databaseThread()->recordDatabaseClosed(this);
-    databaseContext()->databaseThread()->unscheduleDatabaseTasks(this);
-}
-
-PassRefPtr<SQLTransactionBackend> DatabaseBackend::runTransaction(PassRefPtr<SQLTransaction> transaction,
-    bool readOnly, const ChangeVersionData* data)
-{
-    MutexLocker locker(m_transactionInProgressMutex);
-    if (!m_isTransactionQueueEnabled)
-        return 0;
-
-    RefPtr<SQLTransactionWrapper> wrapper;
-    if (data)
-        wrapper = ChangeVersionWrapper::create(data->oldVersion(), data->newVersion());
-
-    RefPtr<SQLTransactionBackend> transactionBackend = SQLTransactionBackend::create(this, transaction, wrapper, readOnly);
-    m_transactionQueue.append(transactionBackend);
-    if (!m_transactionInProgress)
-        scheduleTransaction();
-
-    return transactionBackend;
-}
-
-void DatabaseBackend::inProgressTransactionCompleted()
-{
-    MutexLocker locker(m_transactionInProgressMutex);
-    m_transactionInProgress = false;
-    scheduleTransaction();
-}
-
-void DatabaseBackend::scheduleTransaction()
-{
-    ASSERT(!m_transactionInProgressMutex.tryLock()); // Locked by caller.
-    RefPtr<SQLTransactionBackend> transaction;
-
-    if (m_isTransactionQueueEnabled && !m_transactionQueue.isEmpty())
-        transaction = m_transactionQueue.takeFirst();
-
-    if (transaction && databaseContext()->databaseThread()) {
-        auto task = DatabaseTransactionTask::create(transaction);
-        LOG(StorageAPI, "Scheduling DatabaseTransactionTask %p for transaction %p\n", task.get(), task->transaction());
-        m_transactionInProgress = true;
-        databaseContext()->databaseThread()->scheduleTask(std::move(task));
-    } else
-        m_transactionInProgress = false;
-}
-
-void DatabaseBackend::scheduleTransactionStep(SQLTransactionBackend* transaction)
-{
-    if (!databaseContext()->databaseThread())
-        return;
-
-    auto task = DatabaseTransactionTask::create(transaction);
-    LOG(StorageAPI, "Scheduling DatabaseTransactionTask %p for the transaction step\n", task.get());
-    databaseContext()->databaseThread()->scheduleTask(std::move(task));
-}
-
-SQLTransactionClient* DatabaseBackend::transactionClient() const
-{
-    return databaseContext()->databaseThread()->transactionClient();
-}
-
-SQLTransactionCoordinator* DatabaseBackend::transactionCoordinator() const
-{
-    return databaseContext()->databaseThread()->transactionCoordinator();
-}
-
-} // namespace WebCore
-
-#endif // ENABLE(SQL_DATABASE)