/*
* Clean up all of the remainders from a closed connection, including the network channels, etc.
*/
Int32 CleanupClosedConnection()
{
Monitor.Enter(CleanupClosedConnectionLock);
// NOTE: Do not make any calls to the real Connection in here!
// If, for any reason, the connection has died, calling into it from here will
// end up causing this thread to hang, waiting for the dead connection to respond.
DebugLog.Write("[Interface:CleanupClosedConnection] Closing all connections to the Agent");
// Reset all necessary assigned variables
AgentProcess = null;
AgentProcessOwner = false;
if (Connection != null)
{
// Notify the connection wrapper that the connection is gone
Connection.SignalConnectionDropped();
Connection = null;
}
ConnectionHandle = Constants.INVALID;
ConnectionConfiguration = null;
// Clean up and close up the connection callback
if (ConnectionCallback != null)
{
IntPtr QuitMessage = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(FMessage)));
Marshal.StructureToPtr(new FMessage(ESwarmVersionValue.VER_1_0, EMessageType.QUIT), QuitMessage, false);
ConnectionCallback(QuitMessage, ConnectionCallbackData);
}
ConnectionCallback = null;
ConnectionCallbackData = IntPtr.Zero;
// Close all associated channels
if (OpenChannels.Count > 0)
{
foreach (ChannelInfo NextChannel in OpenChannels.Values)
{
// Just close the handle and we'll clear the entire list later
if (NextChannel.ChannelFileStream != null)
{
NextChannel.ChannelFileStream.Close();
NextChannel.ChannelFileStream = null;
}
}
OpenChannels.Clear();
}
// Unregister the primary network communication channel
if (NetworkChannel != null)
{
ChannelServices.UnregisterChannel(NetworkChannel);
NetworkChannel = null;
}
Monitor.Exit(CleanupClosedConnectionLock);
return Constants.SUCCESS;
}
///////////////////////////////////////////////////////////////////////////
// A duplication of the IAgentInterface API which this class wraps
public Int32 OpenConnection(Process AgentProcess, bool AgentProcessOwner, Int32 LocalProcessID, ELogFlags LoggingFlags, out AgentConfiguration NewConfiguration)
{
OpenConnectionDelegate DOpenConnection = Connection.OpenConnection;
// Set up the versioned hashtable input parameters
Hashtable InParameters = new Hashtable();
InParameters["Version"] = ESwarmVersionValue.VER_1_0;
InParameters["ProcessID"] = LocalProcessID;
InParameters["ProcessIsOwner"] = (AgentProcessOwner == true ? true : false);
InParameters["LoggingFlags"] = LoggingFlags;
Hashtable OutParameters = null;
IAsyncResult Result = DOpenConnection.BeginInvoke(InParameters, ref OutParameters, null, null);
// This will wait with an occasional wake up to check to see if the
// agent process is still alive and kicking (avoids infinite wait,
// allows for very long start up times while debugging)
Int32 StartupSleep = 1000;
while ((Result.AsyncWaitHandle.WaitOne(StartupSleep) == false) &&
(AgentProcess.HasExited == false) &&
(AgentProcess.Responding == true))
{
// While the application is alive and responding, wait
DebugLog.Write("[OpenConnection] Waiting for agent to respond ...");
}
if (Result.IsCompleted)
{
// If the invocation didn't fail, end to get the result
Int32 ReturnValue = DOpenConnection.EndInvoke(ref OutParameters, Result);
if (OutParameters != null)
{
if ((ESwarmVersionValue)OutParameters["Version"] == ESwarmVersionValue.VER_1_0)
{
NewConfiguration = new AgentConfiguration();
NewConfiguration.AgentProcessID = (Int32 )OutParameters["AgentProcessID"];
NewConfiguration.AgentCachePath = (String )OutParameters["AgentCachePath"];
NewConfiguration.AgentJobGuid = (AgentGuid )OutParameters["AgentJobGuid"];
if (OutParameters.ContainsKey("IsPureLocalConnection"))
{
NewConfiguration.IsPureLocalConnection = (bool)OutParameters["IsPureLocalConnection"];
}
// Complete and successful
return ReturnValue;
}
}
}
// Otherwise, error
NewConfiguration = null;
return Constants.ERROR_CONNECTION_DISCONNECTED;
}
FSwarmInterface()
{
AgentProcess = null;
AgentProcessOwner = false;
Connection = null;
ConnectionHandle = Constants.INVALID;
ConnectionMessageThread = null;
ConnectionMonitorThread = null;
ConnectionConfiguration = null;
ConnectionCallback = null;
BaseChannelHandle = 0;
PendingTasks = null;
NetworkChannel = null;
PerfTimerInstance = null;
OpenChannels = new ReaderWriterDictionary<Int32, ChannelInfo>();
FreeChannelWriteBuffers = new Stack<byte[]>();
CleanupClosedConnectionLock = new Object();
// TODO: Delete old files
}