Remove worker support of Web SQL Database.

Source/modules/webdatabase/DatabaseSync.cpp

-/*
- * Copyright (C) 2010 Google 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:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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 THE COPYRIGHT
- * OWNER 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 "modules/webdatabase/DatabaseSync.h"
-
-#include "bindings/core/v8/ExceptionState.h"
-#include "core/dom/ExceptionCode.h"
-#include "core/dom/ExecutionContext.h"
-#include "platform/Logging.h"
-#include "modules/webdatabase/DatabaseCallback.h"
-#include "modules/webdatabase/DatabaseContext.h"
-#include "modules/webdatabase/DatabaseManager.h"
-#include "modules/webdatabase/DatabaseTracker.h"
-#include "modules/webdatabase/SQLError.h"
-#include "modules/webdatabase/SQLTransactionSync.h"
-#include "modules/webdatabase/SQLTransactionSyncCallback.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefPtr.h"
-#include "wtf/text/CString.h"
-
-namespace blink {
-
-PassRefPtrWillBeRawPtr<DatabaseSync> DatabaseSync::create(ExecutionContext*, PassRefPtrWillBeRawPtr<DatabaseBackendBase> backend)
-{
-    return static_cast<DatabaseSync*>(backend.get());
-}
-
-DatabaseSync::DatabaseSync(DatabaseContext* databaseContext,
-    const String& name, const String& expectedVersion, const String& displayName, unsigned long estimatedSize)
-    : DatabaseBackendSync(databaseContext, name, expectedVersion, displayName, estimatedSize)
-    , DatabaseBase(databaseContext->executionContext())
-{
-    setFrontend(this);
-}
-
-DatabaseSync::~DatabaseSync()
-{
-#if !ENABLE(OILPAN)
-    if (executionContext())
-        ASSERT(executionContext()->isContextThread());
-#endif
-}
-
-void DatabaseSync::trace(Visitor* visitor)
-{
-    DatabaseBackendSync::trace(visitor);
-}
-
-void DatabaseSync::changeVersion(const String& oldVersion, const String& newVersion, PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback> changeVersionCallback, ExceptionState& exceptionState)
-{
-    ASSERT(executionContext()->isContextThread());
-
-    if (sqliteDatabase().transactionInProgress()) {
-        reportChangeVersionResult(1, SQLError::DATABASE_ERR, 0);
-        setLastErrorMessage("unable to changeVersion from within a transaction");
-        exceptionState.throwDOMException(SQLDatabaseError, "Unable to change version from within a transaction.");
-        return;
-    }
-
-    RefPtrWillBeRawPtr<SQLTransactionSync> transaction = SQLTransactionSync::create(this, changeVersionCallback, false);
-    transaction->begin(exceptionState);
-    if (exceptionState.hadException()) {
-        ASSERT(!lastErrorMessage().isEmpty());
-        return;
-    }
-
-    String actualVersion;
-    if (!getVersionFromDatabase(actualVersion)) {
-        reportChangeVersionResult(2, SQLError::UNKNOWN_ERR, sqliteDatabase().lastError());
-        setLastErrorMessage("unable to read the current version", sqliteDatabase().lastError(), sqliteDatabase().lastErrorMsg());
-        exceptionState.throwDOMException(UnknownError, SQLError::unknownErrorMessage);
-        return;
-    }
-
-    if (actualVersion != oldVersion) {
-        reportChangeVersionResult(3, SQLError::VERSION_ERR, 0);
-        setLastErrorMessage("current version of the database and `oldVersion` argument do not match");
-        exceptionState.throwDOMException(VersionError, SQLError::versionErrorMessage);
-        return;
-    }
-
-
-    transaction->execute(exceptionState);
-    if (exceptionState.hadException()) {
-        ASSERT(!lastErrorMessage().isEmpty());
-        return;
-    }
-
-    if (!setVersionInDatabase(newVersion)) {
-        reportChangeVersionResult(4, SQLError::UNKNOWN_ERR, sqliteDatabase().lastError());
-        setLastErrorMessage("unable to set the new version", sqliteDatabase().lastError(), sqliteDatabase().lastErrorMsg());
-        exceptionState.throwDOMException(UnknownError, SQLError::unknownErrorMessage);
-        return;
-    }
-
-    transaction->commit(exceptionState);
-    if (exceptionState.hadException()) {
-        ASSERT(!lastErrorMessage().isEmpty());
-        setCachedVersion(oldVersion);
-        return;
-    }
-
-    reportChangeVersionResult(0, -1, 0); // OK
-
-    setExpectedVersion(newVersion);
-    setLastErrorMessage("");
-}
-
-void DatabaseSync::transaction(PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback> callback, ExceptionState& exceptionState)
-{
-    runTransaction(callback, false, exceptionState);
-}
-
-void DatabaseSync::readTransaction(PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback> callback, ExceptionState& exceptionState)
-{
-    runTransaction(callback, true, exceptionState);
-}
-
-void DatabaseSync::rollbackTransaction(SQLTransactionSync& transaction)
-{
-    ASSERT(!lastErrorMessage().isEmpty());
-    transaction.rollback();
-    setLastErrorMessage("");
-    return;
-}
-
-void DatabaseSync::runTransaction(PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback> callback, bool readOnly, ExceptionState& exceptionState)
-{
-    ASSERT(executionContext()->isContextThread());
-
-    if (sqliteDatabase().transactionInProgress()) {
-        setLastErrorMessage("unable to start a transaction from within a transaction");
-        exceptionState.throwDOMException(SQLDatabaseError, "Unable to start a transaction from within a transaction.");
-        return;
-    }
-
-    RefPtrWillBeRawPtr<SQLTransactionSync> transaction = SQLTransactionSync::create(this, callback, readOnly);
-    transaction->begin(exceptionState);
-    if (exceptionState.hadException()) {
-        rollbackTransaction(*transaction);
-        return;
-    }
-
-    transaction->execute(exceptionState);
-    if (exceptionState.hadException()) {
-        rollbackTransaction(*transaction);
-        return;
-    }
-
-    transaction->commit(exceptionState);
-    if (exceptionState.hadException()) {
-        rollbackTransaction(*transaction);
-        return;
-    }
-
-    setLastErrorMessage("");
-}
-
-void DatabaseSync::closeImmediately()
-{
-    ASSERT(executionContext()->isContextThread());
-
-    if (!opened())
-        return;
-
-    logErrorMessage("forcibly closing database");
-    closeDatabase();
-}
-
-void DatabaseSync::observeTransaction(SQLTransactionSync& transaction)
-{
-#if ENABLE(OILPAN)
-    m_observers.add(&transaction, adoptPtr(new TransactionObserver(transaction)));
-#endif
-}
-
-#if ENABLE(OILPAN)
-DatabaseSync::TransactionObserver::~TransactionObserver()
-{
-    m_transaction.rollbackIfInProgress();
-}
-#endif
-
-} // namespace blink