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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:52 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:30:52 -0800 |
commit | 8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2 (patch) | |
tree | 11425ea0b299d6fb89c6d3618a22d97d5bf68d0f /WebCore/storage/DatabaseTask.h | |
parent | 648161bb0edfc3d43db63caed5cc5213bc6cb78f (diff) | |
download | external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.zip external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.tar.gz external_webkit-8e35f3cfc7fba1d1c829dc557ebad6409cbe16a2.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'WebCore/storage/DatabaseTask.h')
-rw-r--r-- | WebCore/storage/DatabaseTask.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/WebCore/storage/DatabaseTask.h b/WebCore/storage/DatabaseTask.h new file mode 100644 index 0000000..50d297f --- /dev/null +++ b/WebCore/storage/DatabaseTask.h @@ -0,0 +1,151 @@ +/* + * Copyright (C) 2007, 2008 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. + * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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. + */ +#ifndef DatabaseTask_h +#define DatabaseTask_h + +#include "ExceptionCode.h" +#include "PlatformString.h" +#include <wtf/OwnPtr.h> +#include <wtf/PassRefPtr.h> +#include <wtf/Threading.h> +#include <wtf/Vector.h> + +namespace WebCore { + +class Database; +class DatabaseThread; +class SQLValue; +class SQLCallback; +class SQLTransaction; +class VersionChangeCallback; + +class DatabaseTask : public ThreadSafeShared<DatabaseTask> +{ + friend class Database; +public: + virtual ~DatabaseTask(); + + void performTask(); + + Database* database() const { return m_database; } + bool isComplete() const { return m_complete; } + +protected: + DatabaseTask(Database*); + +private: + virtual void doPerformTask() = 0; +#ifndef NDEBUG + virtual const char* debugTaskName() const = 0; +#endif + + void lockForSynchronousScheduling(); + void waitForSynchronousCompletion(); + + Database* m_database; + + bool m_complete; + + OwnPtr<Mutex> m_synchronousMutex; + OwnPtr<ThreadCondition> m_synchronousCondition; +}; + +class DatabaseOpenTask : public DatabaseTask +{ +public: + static PassRefPtr<DatabaseOpenTask> create(Database* db) { return adoptRef(new DatabaseOpenTask(db)); } + + ExceptionCode exceptionCode() const { return m_code; } + bool openSuccessful() const { return m_success; } + +private: + DatabaseOpenTask(Database*); + + virtual void doPerformTask(); +#ifndef NDEBUG + virtual const char* debugTaskName() const; +#endif + + ExceptionCode m_code; + bool m_success; +}; + +class DatabaseCloseTask : public DatabaseTask +{ +public: + static PassRefPtr<DatabaseCloseTask> create(Database* db) { return adoptRef(new DatabaseCloseTask(db)); } + +private: + DatabaseCloseTask(Database*); + + virtual void doPerformTask(); +#ifndef NDEBUG + virtual const char* debugTaskName() const; +#endif +}; + +class DatabaseTransactionTask : public DatabaseTask +{ +public: + static PassRefPtr<DatabaseTransactionTask> create(PassRefPtr<SQLTransaction> transaction) { return adoptRef(new DatabaseTransactionTask(transaction)); } + + SQLTransaction* transaction() const { return m_transaction.get(); } + + virtual ~DatabaseTransactionTask(); +private: + DatabaseTransactionTask(PassRefPtr<SQLTransaction>); + + virtual void doPerformTask(); +#ifndef NDEBUG + virtual const char* debugTaskName() const; +#endif + + RefPtr<SQLTransaction> m_transaction; +}; + +class DatabaseTableNamesTask : public DatabaseTask +{ +public: + static PassRefPtr<DatabaseTableNamesTask> create(Database* db) { return adoptRef(new DatabaseTableNamesTask(db)); } + + Vector<String>& tableNames() { return m_tableNames; } + +private: + DatabaseTableNamesTask(Database*); + + virtual void doPerformTask(); +#ifndef NDEBUG + virtual const char* debugTaskName() const; +#endif + + Vector<String> m_tableNames; +}; + +} // namespace WebCore + +#endif // DatabaseTask_h |