void SQLTransaction::scheduleCallback(void (SQLTransaction::*step)())
{
m_nextStep = step;
LOG(StorageAPI, "Scheduling %s for transaction %p\n", debugStepName(step), this);
m_database->scheduleTransactionCallback(this);
}
void SQLTransaction::performPendingCallback()
{
LOG(StorageAPI, "Callback %s\n", debugStepName(m_nextStep));
ASSERT(m_nextStep == &SQLTransaction::deliverTransactionCallback ||
m_nextStep == &SQLTransaction::deliverTransactionErrorCallback ||
m_nextStep == &SQLTransaction::deliverStatementCallback ||
m_nextStep == &SQLTransaction::deliverQuotaIncreaseCallback ||
m_nextStep == &SQLTransaction::deliverSuccessCallback);
checkAndHandleClosedOrInterruptedDatabase();
if (m_nextStep)
(this->*m_nextStep)();
}
bool SQLTransaction::performNextStep()
{
LOG(StorageAPI, "Step %s\n", debugStepName(m_nextStep));
ASSERT(m_nextStep == &SQLTransaction::acquireLock ||
m_nextStep == &SQLTransaction::openTransactionAndPreflight ||
m_nextStep == &SQLTransaction::runStatements ||
m_nextStep == &SQLTransaction::postflightAndCommit ||
m_nextStep == &SQLTransaction::cleanupAfterSuccessCallback ||
m_nextStep == &SQLTransaction::cleanupAfterTransactionErrorCallback);
checkAndHandleClosedOrInterruptedDatabase();
if (m_nextStep)
(this->*m_nextStep)();
// If there is no nextStep after performing the above step, the transaction is complete
return !m_nextStep;
}