/// <summary>
/// Acquires a writer lock for this record.
/// </summary>
/// <param name="dataModelTransaction">The transaction context for this operation.</param>
//[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
public virtual void AcquireWriterLock(IDataModelTransaction dataModelTransaction)
{
global::System.Guid transactionId = dataModelTransaction.TransactionId;
try
{
global::System.Threading.Monitor.Enter(this.rowRoot);
this.writerWaiters = (this.writerWaiters + 1);
if ((this.writer != transactionId))
{
int index = this._readers.BinarySearch(transactionId);
if ((index >= 0))
{
this._readers.RemoveAt(index);
if (EventLog.IsLoggingEnabledFor(EventLog.ErrorLogLevel.Verbose))
{
this._readersStackTrace.RemoveAt(index);
}
}
for (
; ((this.writer != global::System.Guid.Empty) ||
(this._readers.Count != 0));
)
{
try
{
try
{
global::System.Threading.Monitor.Enter(this.writerRoot);
global::System.Threading.Monitor.Exit(this.rowRoot);
if (false == global::System.Threading.Monitor.Wait(this.writerRoot, this.LockTimeout))
{
try
{
EventLog.Information("AcquireWriterLock TIMEOUT\r\n {0} Current Stack: {1} \r\n{2}", this.GetRowDebugDescription(), UnhandledExceptionHelper.GetStackString(), this.GetCurrentLockStacks(false));
}
catch
{
}
throw new FluidTrade.Core.Utilities.DeadlockException("AcquireWriterLock TIMEOUT", null);
}
}
finally
{
global::System.Threading.Monitor.Exit(this.writerRoot);
}
}
finally
{
global::System.Threading.Monitor.Enter(this.rowRoot);
}
}
this.writer = transactionId;
}
}
finally
{
this.writerWaiters = (this.writerWaiters - 1);
global::System.Threading.Monitor.Exit(this.rowRoot);
}
dataModelTransaction.AddLock(this);
if ((this.RowState == global::System.Data.DataRowState.Detached))
{
throw new global::System.Exception("The " + this.GetType().FullName + " record was deleted after it was locked");
}
}
private void LoadUnsafe()
{
// This flag is set when an error occurs anywhere in the processing of the XML file.
this.HasErrors = false;
// Read the XML data from the specified file.
if (NotifyMessage != null)
{
this.NotifyMessage(this, new MessageEventArgs(string.Format("Loading {0}", FileName)));
}
XDocument xDocument = XDocument.Load(this.FileName);
if (NotifyMessage != null)
{
this.NotifyMessage(this, new MessageEventArgs("Processing"));
}
// The script name is stored in the root node. The name is used in status and debugging messages.
XAttribute nameAttribute = xDocument.Root.Attribute("name");
this.ScriptName = nameAttribute == null ? "Unnamed Transaction" : nameAttribute.Value;
// This will force the user interface to appear the next time a channel is opened. It also releases any threads that
// may have been waiting for the user to provide a set of credentials. Threads enter this waiting state when the user
// hits the 'Cancel' button on any screen that prompts for credentials.
if (this.ForceLogin && this.LocalMode == false)
{
ChannelStatus.IsPrompted = true;
}
if (this.LocalMode == false)
{
ChannelStatus.LoginEvent.Set();
}
List <XElement> xElementList = new List <XElement>();
foreach (XElement xElement in xDocument.Root.Elements())
{
xElementList.Add(xElement);
}
//default to be 10%
int tickPercent = xElementList.Count / 10;
if (tickPercent < 50)
{
tickPercent = 50;
}
else if (tickPercent > 1000)
{
tickPercent = 1000;
}
// Cycle through all of the children of the root node. Transactions are executed as a unit. Methods outside of a
// transaction element are executed alone.
for (int elementIndex = 0; elementIndex < xElementList.Count; elementIndex++)
{
XElement xElement = xElementList[elementIndex];
try
{
if (NotifyMessage != null && elementIndex % tickPercent == 0)
{
MessageEventArgs mea = new MessageEventArgs("Next Tick");
mea.IsProgressTick = true;
this.NotifyMessage(this, mea);
}
switch (xElement.Name.LocalName)
{
case "client":
// A channel is required for each endpont that will be contacted during his load.
CreateClient(xElement);
break;
case "method":
if (this.tranactionScopeStack.Count == 0)
{
using (TransactionScope transactionScope = new TransactionScope())
{
// Parse and execute a single method out of the script.
if (ExecuteMethod(xElement))
{
this.MethodCount++;
}
transactionScope.Complete();
}
}
else
{
// Parse and execute a single method out of the script.
if (ExecuteMethod(xElement))
{
this.MethodCount++;
}
}
break;
case "transaction":
// This creates a collection of methods that are executed as a unit.
ExecuteTransaction(xElement);
break;
}
}
catch (Exception exception)
{
EventLog.Error(string.Format("{0} {1} {2}", exception.Message, exception.ToString(), exception.StackTrace));
ScriptLoaderException slEx = new ScriptLoaderException("Error in " + this.FileName, exception, xElement, this.MethodCount);
if (NotifyMessage != null)
{
this.NotifyMessage(this, new MessageEventArgs(slEx.Message));
}
throw slEx;
}
}
if (NotifyMessage != null)
{
this.NotifyMessage(this, new MessageEventArgs(string.Format("Processed {0} methods in file: {1}", MethodCount, Path.GetFileName(FileName))));
}
// One or more channels may have been created dynamicall from the information in the scripts. These dynamic channels
// should be shut down gracefully before exiting.
if (this.LocalMode == false)
{
foreach (KeyValuePair <String, ClientChannel> clientPair in this.clientTable)
{
MethodInfo closeMethod = clientPair.Value.ChannelType.GetMethod("Close");
closeMethod.Invoke(clientPair.Value.ChannelObject, null);
}
}
}
