void DatabaseThread::databaseThread()
{
{
// Wait for DatabaseThread::start() to complete.
LockHolder lock(m_threadCreationMutex);
LOG(StorageAPI, "Started DatabaseThread %p", this);
}
while (auto task = m_queue.waitForMessage()) {
AutodrainedPool pool;
task->performTask();
}
// Clean up the list of all pending transactions on this database thread
m_transactionCoordinator->shutdown();
LOG(StorageAPI, "About to detach thread %i and clear the ref to DatabaseThread %p, which currently has %i ref(s)", m_threadID, this, refCount());
// Close the databases that we ran transactions on. This ensures that if any transactions are still open, they are rolled back and we don't leave the database in an
// inconsistent or locked state.
DatabaseSet openSetCopy;
{
LockHolder lock(m_openDatabaseSetMutex);
if (m_openDatabaseSet.size() > 0) {
// As the call to close will modify the original set, we must take a copy to iterate over.
openSetCopy.swap(m_openDatabaseSet);
}
}
for (auto& openDatabase : openSetCopy)
openDatabase->close();
// Detach the thread so its resources are no longer of any concern to anyone else
detachThread(m_threadID);
DatabaseTaskSynchronizer* cleanupSync = m_cleanupSync;
// Clear the self refptr, possibly resulting in deletion
m_selfRef = nullptr;
if (cleanupSync) // Someone wanted to know when we were done cleaning up.
cleanupSync->taskCompleted();
}
