/// <summary>
/// Schedules a node for execution in the thread pool.
/// </summary>
/// <param name='node'>Node of the graph to put into execution.</param>
private void ScheduleForExecution(ExecutionNode node)
{
Interlocked.Increment(ref _activeNodes);
StartTask(delegate {
try {
this.VisitNode(node.Name);
foreach (ExecutionNode dependantNode in node.DependantNodes)
{
if (dependantNode.ResolvePrerequisite())
{
this.ScheduleForExecution(dependantNode);
}
}
}
catch (Exception e) {
lock (this._exceptions) {
this._exceptions.Add(e);
}
}
if (Interlocked.Decrement(ref _activeNodes) == 0)
{
this._finished.Set();
}
});
}
/// <summary>
/// Registers a node as a leaf node (no prerequisites).
/// </summary>
/// <param name='node'>Node to be registered as a leaf.</param>
public void RegisterLeafNode(ExecutionNode node)
{
if (!this._leaves.Contains(node))
{
this._leaves.Add(node);
}
}
/// <summary>
/// Gets the node with the given name. Creates a new node, if there is no node with the given name in the graph.
/// </summary>
/// <returns>
/// An instance of <see cref="ExecutionNode"/> class.
/// </returns>
/// <param name='name'>
/// Name of the node to return.
/// </param>
public ExecutionNode GetNode(string name)
{
ExecutionNode result;
if (this._nodes.TryGetValue(name, out result))
{
return(result);
}
result = new ExecutionNode(name);
this._nodes[name] = result;
return(result);
}
/// <summary>
/// Schedules a node for execution in the thread pool.
/// </summary>
/// <param name='node'>Node of the graph to put into execution.</param>
private void ScheduleForExecution(ExecutionNode node) {
Interlocked.Increment(ref _activeNodes);
StartTask(delegate {
try {
this.VisitNode(node.Name);
foreach (ExecutionNode dependantNode in node.DependantNodes) {
if (dependantNode.ResolvePrerequisite()) {
this.ScheduleForExecution(dependantNode);
}
}
}
catch (Exception e) {
lock (this._exceptions) {
this._exceptions.Add(e);
}
}
if (Interlocked.Decrement(ref _activeNodes) == 0) {
this._finished.Set();
}
});
}
/// <summary>
/// Registers a node as a leaf node (no prerequisites).
/// </summary>
/// <param name='node'>Node to be registered as a leaf.</param>
public void RegisterLeafNode(ExecutionNode node) {
if (!this._leaves.Contains(node)) {
this._leaves.Add(node);
}
}
/// <summary>
/// Gets the node with the given name. Creates a new node, if there is no node with the given name in the graph.
/// </summary>
/// <returns>
/// An instance of <see cref="ExecutionNode"/> class.
/// </returns>
/// <param name='name'>
/// Name of the node to return.
/// </param>
public ExecutionNode GetNode(string name) {
ExecutionNode result;
if (this._nodes.TryGetValue(name, out result)) {
return result;
}
result = new ExecutionNode(name);
this._nodes[name] = result;
return result;
}
/// <summary>
/// Registers a dependant node for the current node. Implicitly registers current node as prerequisite for the dependant node.
/// </summary>
/// <param name='node'>Reference to the dependant node to connect with the current node.</param>
public void RegisterDependantNode(ExecutionNode node)
{
_dependantNodes.Add(node);
node.AddPrerequisite();
}
/// <summary>
/// Registers a dependant node for the current node. Implicitly registers current node as prerequisite for the dependant node.
/// </summary>
/// <param name='node'>Reference to the dependant node to connect with the current node.</param>
public void RegisterDependantNode(ExecutionNode node) {
_dependantNodes.Add(node);
node.AddPrerequisite();
}
