Method closeResources

app/src/Sessions/Export.cpp:79–111

* @brief Closes the database and finalizes the current session. */

 * @brief Closes the database and finalizes the current session.
 */
void Sessions::ExportWorker::closeResources()
{
  if (!m_dbOpen)
    return;

  finalizeSession();

  TableSnapshotEntry staleSnapshot;
  while (m_snapshotQueue->try_dequeue(staleSnapshot)) {
  }

  m_readingQuery.reset();
  m_rawBytesQuery.reset();
  m_tableSnapshotQuery.reset();

  QString connName;
  if (m_db) {
    connName = m_db->connectionName();
    QSqlQuery checkpoint(*m_db);
    checkpoint.exec("PRAGMA wal_checkpoint(RESTART)");
    m_db->close();
  }

  m_db.reset();
  if (!connName.isEmpty())
    QSqlDatabase::removeDatabase(connName);

  m_dbOpen         = false;
  m_sessionId      = -1;
  m_lastRawBytesNs = -1;
  m_schema         = DataModel::ExportSchema{};
  resetMonotonicClock();
}

/**
 * @brief Returns whether the database file is open.