internal override void Dispose()
{
SNIPacket packetHandle = _sniPacket;
SNIHandle sessionHandle = _sessionHandle;
SNIPacket asyncAttnPacket = _sniAsyncAttnPacket;
_sniPacket = null;
_sessionHandle = null;
_sniAsyncAttnPacket = null;
_marsConnection = null;
DisposeCounters();
if (null != sessionHandle || null != packetHandle)
{
packetHandle?.Dispose();
asyncAttnPacket?.Dispose();
if (sessionHandle != null)
{
sessionHandle.Dispose();
DecrementPendingCallbacks(true); // Will dispose of GC handle.
}
}
DisposePacketCache();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="connection">MARS connection</param>
/// <param name="sessionId">MARS session ID</param>
/// <param name="callbackObject">Callback object</param>
/// <param name="async">true if connection is asynchronous</param>
public SNIMarsHandle(SNIMarsConnection connection, ushort sessionId, object callbackObject, bool async)
{
_sessionId = sessionId;
_connection = connection;
_callbackObject = callbackObject;
SendControlPacket(SNISMUXFlags.SMUX_SYN);
_status = TdsEnums.SNI_SUCCESS;
}
internal override uint EnableMars(ref uint info)
{
_marsConnection = new SNIMarsConnection(Handle);
if (_marsConnection.StartReceive() == TdsEnums.SNI_SUCCESS_IO_PENDING)
{
return(TdsEnums.SNI_SUCCESS);
}
return(TdsEnums.SNI_ERROR);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="connection">MARS connection</param>
/// <param name="sessionId">MARS session ID</param>
/// <param name="callbackObject">Callback object</param>
/// <param name="async">true if connection is asynchronous</param>
public SNIMarsHandle(SNIMarsConnection connection, ushort sessionId, object callbackObject, bool async)
{
_sessionId = sessionId;
_connection = connection;
_connectionId = connection.ConnectionId;
_callbackObject = callbackObject;
_handleSendCompleteCallback = HandleSendComplete;
SendControlPacket(SNISMUXFlags.SMUX_SYN);
SqlClientEventSource.Log.TrySNITraceEvent(nameof(SNIMarsHandle), EventType.INFO, "MARS Session Id {0}, Sent SMUX_SYN packet to start a new session, session Id {1}", args0: ConnectionId, args1: _sessionId);
_status = TdsEnums.SNI_SUCCESS;
}
internal override uint EnableMars(ref uint info)
{
_marsConnection = new SNIMarsConnection(Handle);
SqlClientEventSource.Log.TryTraceEvent("TdsParserStateObjectManaged.EnableMars | Info | State Object Id {0}, Session Id {1}", _objectID, _sessionHandle?.ConnectionId);
if (_marsConnection.StartReceive() == TdsEnums.SNI_SUCCESS_IO_PENDING)
{
return(TdsEnums.SNI_SUCCESS);
}
return(TdsEnums.SNI_ERROR);
}
internal override void Dispose()
{
SNIHandle sessionHandle = _sessionHandle;
_sessionHandle = null;
_marsConnection = null;
DisposeCounters();
if (null != sessionHandle)
{
sessionHandle.Dispose();
DecrementPendingCallbacks(true); // Will dispose of GC handle.
}
}
internal override void Dispose()
{
SqlClientEventSource.Log.TryTraceEvent("TdsParserStateObjectManaged.Dispose | Info | State Object Id {0}, Session Id {1}, Disposing session Handle and counters.", _objectID, _sessionHandle?.ConnectionId);
SNIHandle sessionHandle = _sessionHandle;
_sessionHandle = null;
_marsConnection = null;
DisposeCounters();
if (null != sessionHandle)
{
SqlClientEventSource.Log.TryTraceEvent("TdsParserStateObjectManaged.Dispose | Info | State Object Id {0}, Session Id {1}, sessionHandle is available, disposing session.", _objectID, _sessionHandle?.ConnectionId);
sessionHandle.Dispose();
DecrementPendingCallbacks(true); // Will dispose of GC handle.
}
else
{
SqlClientEventSource.Log.TryTraceEvent("TdsParserStateObjectManaged.Dispose | Info | State Object Id {0}, sessionHandle not available, could not dispose session.", _objectID);
}
}
