/// <summary>
/// Runs the method, specified by method, on the server specified by i, with parameters given by parameters.
/// Correctly handles exceptions thrown in the running of that method, and bool and BufferGenerationStatus
/// type return values from the server.
/// </summary>
/// <param name="method"></param>
/// <param name="i"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public ServerActionStatus runMethodOnServer(MethodInfo method, ServerInfo i, object[] parameters, int msTimeout, EventHandler<MessageEvent> messageLog)
{
if (verifyConnection(i) == ServerActionStatus.Failed_No_Connection)
return ServerActionStatus.Failed_No_Connection;
ServerCommunicator communicator = communicators[i];
Object returnValue;
try
{
InvokeMethodOnServer_Parameters invoke_parameters = new InvokeMethodOnServer_Parameters(method, parameters, communicator);
Thread invokeMethodThread = new Thread(new ParameterizedThreadStart(InvokeMethodOnServer_Proc));
invokeMethodThread.Start(invoke_parameters);
// invokeMethodThread.Join(msTimeout);
invokeMethodThread.Join();
if (invokeMethodThread.ThreadState == ThreadState.Running)
{
invokeMethodThread.Abort();
throw new Exception("Method on server " + i.ToString() + "." + method.Name + " took longer than " + msTimeout + " ms timeout. Aborting.");
}
returnValue = invoke_parameters.returnValue;
if (invoke_parameters.runException != null)
{
throw new Exception("Caught an exception when attempting to run method " + i.ToString() + "." + method.Name+ ": " + invoke_parameters.runException.Message);
}
}
catch (Exception e)
{
if (messageLog != null)
messageLog(this, new MessageEvent("Caught exception when attempting to run method on server " + i.ToString() + ": " + e.Message + e.StackTrace));
serverGotDisconnectedInError(i);
return ServerActionStatus.Failed_Loss_Of_Connection;
}
if (returnValue is bool)
{
bool attempt = (bool) returnValue;
if (attempt)
return ServerActionStatus.Success;
return ServerActionStatus.Failed_On_Server;
}
else if (returnValue is ServerCommunicator.BufferGenerationStatus)
{
ServerCommunicator.BufferGenerationStatus bufferStatus = (ServerCommunicator.BufferGenerationStatus) returnValue;
if (bufferStatus == ServerCommunicator.BufferGenerationStatus.Success)
return ServerActionStatus.Success;
return ServerActionStatus.Failed_On_Server;
}
return ServerActionStatus.Success;
}