private void AddDataEventHandlers()
{
// Create new collection objects.
if (_debugBlockingCollection != null)
{
_debugBlockingCollection.Dispose();
}
if (_debugAccumulateCollection != null)
{
_debugAccumulateCollection.Dispose();
}
_debugBlockingCollection = new PSDataCollection <PSStreamObject>();
_debugBlockingCollection.BlockingEnumerator = true;
_debugAccumulateCollection = new PSDataCollection <PSStreamObject>();
_runningPowerShell = _runspace.GetCurrentBasePowerShell();
if (_runningPowerShell != null)
{
if (_runningPowerShell.OutputBuffer != null)
{
_runningPowerShell.OutputBuffer.DataAdding += HandlePowerShellOutputBufferDataAdding;
}
if (_runningPowerShell.ErrorBuffer != null)
{
_runningPowerShell.ErrorBuffer.DataAdding += HandlePowerShellErrorBufferDataAdding;
}
}
else
{
_runningPipeline = _runspace.GetCurrentlyRunningPipeline();
if (_runningPipeline != null)
{
if (_runningPipeline.Output != null)
{
_runningPipeline.Output.DataReady += HandlePipelineOutputDataReady;
}
if (_runningPipeline.Error != null)
{
_runningPipeline.Error.DataReady += HandlePipelineErrorDataReady;
}
}
}
}
/// <summary>
/// Protected virtual implementation of Dispose.
/// </summary>
/// <param name="disposing"></param>
private void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
lock (_syncLock)
{
if (!_disposed)
{
if (disposing)
{
_inputStream.Dispose();
_outputStream.Dispose();
_errorStream.Dispose();
_warningStream.Dispose();
_progressStream.Dispose();
_verboseStream.Dispose();
_debugStream.Dispose();
_informationStream.Dispose();
_inputStream = null;
_outputStream = null;
_errorStream = null;
_warningStream = null;
_progressStream = null;
_verboseStream = null;
_debugStream = null;
_informationStream = null;
}
_disposed = true;
}
}
}
private void InternalExecute(NativeActivityContext executionContext, ActivityInstance completedInstance)
{
int completedInstanceIndex;
// Reading the value of pipeline activity variables from the context.
completedInstanceIndex = this.lastIndexHint.Get(executionContext);
PSDataCollection <PSObject> outValue = this.GetData(executionContext, this.OutputStream);
PSDataCollection <PSObject> inValue = this.GetData(executionContext, this.InputStream);
// Re-checking the index of the the child activity, which has just completed its execution.
if (completedInstanceIndex >= this.Activities.Count || this.Activities[completedInstanceIndex] != completedInstance.Activity)
{
completedInstanceIndex = this.Activities.IndexOf((PSActivity)completedInstance.Activity);
}
// Calculating next child activity.
int nextChildIndex = completedInstanceIndex + 1;
// Checking for pipeline activity completion.
if (nextChildIndex == this.Activities.Count)
{
if (inValue != null)
{
inValue.Dispose();
}
if (outValue != null)
{
outValue.Dispose();
}
return;
}
// Setting up the environment for next child activity to run.
if (outValue != null)
{
outValue.Complete();
}
if (inValue != null)
{
inValue.Dispose();
}
inValue = outValue;
outValue = new PSDataCollection <PSObject>();
// The pipeline is complete if there is no input
// PS > function foo { $input | Write-Output "Hello" }
// PS > foo
// PS >
if ((inValue == null) || (inValue.Count == 0))
{
if (outValue != null)
{
outValue.Dispose();
}
return;
}
this.SetData(executionContext, this.OutputStream, outValue);
this.SetData(executionContext, this.InputStream, inValue);
// Executing the next child activity.
PipelineEnabledActivity nextChild = this.Activities[nextChildIndex];
executionContext.ScheduleActivity(nextChild, new CompletionCallback(InternalExecute));
this.lastIndexHint.Set(executionContext, nextChildIndex);
}
private void InternalExecute(NativeActivityContext executionContext, ActivityInstance completedInstance)
{
int completedInstanceIndex;
// Reading the value of pipeline activity variables from the context.
completedInstanceIndex = this.lastIndexHint.Get(executionContext);
PSDataCollection<PSObject> outValue = this.GetData(executionContext, this.OutputStream);
PSDataCollection<PSObject> inValue = this.GetData(executionContext, this.InputStream);
// Re-checking the index of the the child activity, which has just completed its execution.
if (completedInstanceIndex >= this.Activities.Count || this.Activities[completedInstanceIndex] != completedInstance.Activity)
{
completedInstanceIndex = this.Activities.IndexOf((PSActivity) completedInstance.Activity);
}
// Calculating next child activity.
int nextChildIndex = completedInstanceIndex + 1;
// Checking for pipeline activity completion.
if (nextChildIndex == this.Activities.Count)
{
if (inValue != null) inValue.Dispose();
if (outValue != null) outValue.Dispose();
return;
}
// Setting up the environment for next child activity to run.
if (outValue != null) outValue.Complete();
if (inValue != null) inValue.Dispose();
inValue = outValue;
outValue = new PSDataCollection<PSObject>();
// The pipeline is complete if there is no input
// PS > function foo { $input | Write-Output "Hello" }
// PS > foo
// PS >
if ((inValue == null) || (inValue.Count == 0))
{
if (outValue != null) outValue.Dispose();
return;
}
this.SetData(executionContext, this.OutputStream, outValue);
this.SetData(executionContext, this.InputStream, inValue);
// Executing the next child activity.
PipelineEnabledActivity nextChild = this.Activities[nextChildIndex];
executionContext.ScheduleActivity(nextChild, new CompletionCallback(InternalExecute));
this.lastIndexHint.Set(executionContext, nextChildIndex);
}