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29 #ifndef DatabaseTask_h
30 #define DatabaseTask_h
32 #include "modules/webdatabase/DatabaseBackend.h"
33 #include "modules/webdatabase/DatabaseBasicTypes.h"
34 #include "modules/webdatabase/DatabaseError.h"
35 #include "modules/webdatabase/SQLTransactionBackend.h"
36 #include "platform/Task.h"
37 #include "platform/TaskSynchronizer.h"
38 #include "platform/heap/Handle.h"
39 #include "wtf/OwnPtr.h"
40 #include "wtf/PassOwnPtr.h"
41 #include "wtf/PassRefPtr.h"
42 #include "wtf/RefPtr.h"
43 #include "wtf/Threading.h"
44 #include "wtf/Vector.h"
45 #include "wtf/text/WTFString.h"
49 class DatabaseTask : public blink::WebThread::Task {
50 WTF_MAKE_NONCOPYABLE(DatabaseTask); WTF_MAKE_FAST_ALLOCATED;
52 virtual ~DatabaseTask();
54 virtual void run() OVERRIDE FINAL;
56 DatabaseBackend* database() const { return m_database.get(); }
58 bool hasSynchronizer() const { return m_synchronizer; }
59 bool hasCheckedForTermination() const { return m_synchronizer->hasCheckedForTermination(); }
63 DatabaseTask(DatabaseBackend*, TaskSynchronizer*);
66 virtual void doPerformTask() = 0;
67 virtual void taskCancelled() { }
69 RefPtrWillBeCrossThreadPersistent<DatabaseBackend> m_database;
70 TaskSynchronizer* m_synchronizer;
73 virtual const char* debugTaskName() const = 0;
78 class DatabaseBackend::DatabaseOpenTask FINAL : public DatabaseTask {
80 static PassOwnPtr<DatabaseOpenTask> create(DatabaseBackend* db, bool setVersionInNewDatabase, TaskSynchronizer* synchronizer, DatabaseError& error, String& errorMessage, bool& success)
82 return adoptPtr(new DatabaseOpenTask(db, setVersionInNewDatabase, synchronizer, error, errorMessage, success));
86 DatabaseOpenTask(DatabaseBackend*, bool setVersionInNewDatabase, TaskSynchronizer*, DatabaseError&, String& errorMessage, bool& success);
88 virtual void doPerformTask() OVERRIDE;
90 virtual const char* debugTaskName() const OVERRIDE;
93 bool m_setVersionInNewDatabase;
94 DatabaseError& m_error;
95 String& m_errorMessage;
99 class DatabaseBackend::DatabaseCloseTask FINAL : public DatabaseTask {
101 static PassOwnPtr<DatabaseCloseTask> create(DatabaseBackend* db, TaskSynchronizer* synchronizer)
103 return adoptPtr(new DatabaseCloseTask(db, synchronizer));
107 DatabaseCloseTask(DatabaseBackend*, TaskSynchronizer*);
109 virtual void doPerformTask() OVERRIDE;
111 virtual const char* debugTaskName() const OVERRIDE;
115 class DatabaseBackend::DatabaseTransactionTask FINAL : public DatabaseTask {
117 virtual ~DatabaseTransactionTask();
119 // Transaction task is never synchronous, so no 'synchronizer' parameter.
120 static PassOwnPtr<DatabaseTransactionTask> create(PassRefPtrWillBeRawPtr<SQLTransactionBackend> transaction)
122 return adoptPtr(new DatabaseTransactionTask(transaction));
125 SQLTransactionBackend* transaction() const { return m_transaction.get(); }
128 explicit DatabaseTransactionTask(PassRefPtrWillBeRawPtr<SQLTransactionBackend>);
130 virtual void doPerformTask() OVERRIDE;
131 virtual void taskCancelled() OVERRIDE;
133 virtual const char* debugTaskName() const OVERRIDE;
136 RefPtrWillBeCrossThreadPersistent<SQLTransactionBackend> m_transaction;
139 class DatabaseBackend::DatabaseTableNamesTask FINAL : public DatabaseTask {
141 static PassOwnPtr<DatabaseTableNamesTask> create(DatabaseBackend* db, TaskSynchronizer* synchronizer, Vector<String>& names)
143 return adoptPtr(new DatabaseTableNamesTask(db, synchronizer, names));
147 DatabaseTableNamesTask(DatabaseBackend*, TaskSynchronizer*, Vector<String>& names);
149 virtual void doPerformTask() OVERRIDE;
151 virtual const char* debugTaskName() const OVERRIDE;
154 Vector<String>& m_tableNames;
157 } // namespace WebCore
159 #endif // DatabaseTask_h