private void ProcessOperation(OperationData data)
{
// Time and run the operation's delegate
data.Start = DateTimeOffset.Now;
if (data.Context != null)
{
ExecutionContext.Run(data.Context.CreateCopy(),
op => ((OperationData)op).Operation(), data);
}
else
{
data.Operation();
}
data.End = DateTimeOffset.Now;
// Raise the operation completed event
OnOperationCompleted(data);
// Signal to all that depend on this operation of its
// completion, and potentially launch newly available
lock (_stateLock)
{
List <int> toList;
if (_dependenciesFromTo.TryGetValue(data.Id, out toList))
{
foreach (int targetId in toList)
{
OperationData targetData = _operations[targetId];
if (--targetData.NumRemainingDependencies == 0)
{
QueueOperation(targetData);
}
}
}
_dependenciesFromTo.Remove(data.Id);
if (--_remainingCount == 0)
{
done.Set();
}
}
}
public void AddOperation(
int id, Action operation, params int[] dependencies)
{
if (operation == null)
{
throw new ArgumentNullException("operation");
}
if (dependencies == null)
{
throw new ArgumentNullException("dependencies");
}
var data = new OperationData
{
Context = ExecutionContext.Capture(),
Id = id,
Operation = operation,
Dependencies = dependencies
};
_operations.Add(id, data);
}
private void QueueOperation(OperationData data)
{
ThreadPool.UnsafeQueueUserWorkItem(state =>
ProcessOperation((OperationData)state), data);
}