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29 #include "DatabaseTask.h"
36 DatabaseTask::DatabaseTask(Database* database)
37 : m_database(database)
42 DatabaseTask::~DatabaseTask()
46 void DatabaseTask::performTask()
48 // Database tasks are meant to be used only once, so make sure this one hasn't been performed before.
51 LOG(StorageAPI, "Performing %s %p\n", debugTaskName(), this);
53 m_database->resetAuthorizer();
55 m_database->performPolicyChecks();
57 if (m_synchronousMutex)
58 m_synchronousMutex->lock();
62 if (m_synchronousMutex) {
63 m_synchronousCondition->signal();
64 m_synchronousMutex->unlock();
68 void DatabaseTask::lockForSynchronousScheduling()
70 // Called from main thread.
71 ASSERT(!m_synchronousMutex);
72 ASSERT(!m_synchronousCondition);
73 m_synchronousMutex.set(new Mutex);
74 m_synchronousCondition.set(new ThreadCondition);
77 void DatabaseTask::waitForSynchronousCompletion()
79 // Called from main thread.
80 m_synchronousMutex->lock();
82 m_synchronousCondition->wait(*m_synchronousMutex);
83 m_synchronousMutex->unlock();
86 // *** DatabaseOpenTask ***
87 // Opens the database file and verifies the version matches the expected version.
89 DatabaseOpenTask::DatabaseOpenTask(Database* database)
90 : DatabaseTask(database)
96 void DatabaseOpenTask::doPerformTask()
98 m_success = database()->performOpenAndVerify(m_code);
102 const char* DatabaseOpenTask::debugTaskName() const
104 return "DatabaseOpenTask";
108 // *** DatabaseTransactionTask ***
109 // Starts a transaction that will report its results via a callback.
111 DatabaseTransactionTask::DatabaseTransactionTask(PassRefPtr<SQLTransaction> transaction)
112 : DatabaseTask(transaction->database())
113 , m_transaction(transaction)
117 DatabaseTransactionTask::~DatabaseTransactionTask()
121 void DatabaseTransactionTask::doPerformTask()
123 if (m_transaction->performNextStep()) {
124 // The transaction is complete, we can move on to the next one.
125 MutexLocker locker(m_transaction->database()->m_transactionInProgressMutex);
126 m_transaction->database()->scheduleTransaction();
131 const char* DatabaseTransactionTask::debugTaskName() const
133 return "DatabaseTransactionTask";
137 // *** DatabaseTableNamesTask ***
138 // Retrieves a list of all tables in the database - for WebInspector support.
140 DatabaseTableNamesTask::DatabaseTableNamesTask(Database* database)
141 : DatabaseTask(database)
145 void DatabaseTableNamesTask::doPerformTask()
147 m_tableNames = database()->performGetTableNames();
151 const char* DatabaseTableNamesTask::debugTaskName() const
153 return "DatabaseTableNamesTask";
157 } // namespace WebCore