/// <summary>
/// Shutdown process:
/// - Stop any new transaction
/// - Stop operation loops over database (throw in SafePoint)
/// - Wait for writer queue
/// - Close disks
/// </summary>
protected virtual void Dispose(bool disposing)
{
// this method can be called from Ctor, so many
// of this members can be null yet (even if are readonly).
if (_disposed)
{
return;
}
if (disposing)
{
// stop running all transactions
_monitor?.Dispose();
// do a soft checkpoint (only if exclusive lock is possible)
if (_settings.Checkpoint > 0)
{
_walIndex?.Checkpoint(true);
}
// close all disk streams (and delete log if empty)
_disk?.Dispose();
// delete sort temp file
_sortDisk?.Dispose();
// dispose lockers
_locker?.Dispose();
}
_disposed = true;
}
/// <summary>
/// Shutdown process:
/// - [[[[DESCRIBE]]]]
/// </summary>
public async ValueTask DisposeAsync()
{
// this method can be called from Ctor, so many
// of this members can be null yet (even if are readonly).
if (_disposed)
{
return;
}
_disposed = true;
// do a soft checkpoint (only if exclusive lock is possible)
if (_header?.Pragmas.Checkpoint > 0)
{
await _walIndex?.Checkpoint();
}
// close all disk streams (and delete log if empty)
_disk?.Dispose();
// dispose lockers
_locker.Dispose();
LOG("engine disposed", "ENGINE");
}
/// <summary>
/// Run checkpoint command to copy log file into data file
/// </summary>
public Task <int> CheckpointAsync()
{
if (_disposed == true)
{
throw LiteException.DatabaseClosed();
}
return(_walIndex.Checkpoint());
}
/// <summary> /// Run checkpoint command to copy log file into data file /// </summary> public void Checkpoint() => _walIndex.Checkpoint(false);
/// <summary> /// Run checkpoint command to copy log file into data file /// </summary> public int Checkpoint() => _walIndex.Checkpoint(false, true);
/// <summary> /// Run checkpoint command to copy log file into data file /// </summary> public int Checkpoint() => _walIndex.Checkpoint();
