/// <summary>
/// Creates/Recreates the powersehll pipeline and ensures that everything is at a virgin state
/// Starts the powershell pipeline and waits for it to request the first element from the pipeline
/// The pipeline MUST be shutdown before calling this function! the reason for this is we cannot relaibly reset the BlockableEnum otherwise
/// </summary>
public void CreateAndBeginPipeline()
{
ResetRuleResults();
// Create/reset writer into pipeline and the pipeline
m_propertyBagWriter.ResetBlockableEnum();
m_pipeLine = m_runSpace.CreatePipeline();
m_powershellPaused[(int)m_waitHandleIndex.PipeLine] = m_pipeLine.Output.WaitHandle;
// set the text of the pipeline and run it
m_pipeLine.Commands.AddScript(m_scriptText);
m_pipeLine.InvokeAsync();
// wait for the pipeline to fail or request its first element
m_waitHandleIndex lockIndex = 0;
do
{
lockIndex = (m_waitHandleIndex)WaitHandle.WaitAny(m_powershellPaused);
} while (lockIndex != m_waitHandleIndex.Enumerator && m_pipeLine.Output.IsOpen);
// errors are not permitted before processing elements
if (m_pipeLine.Error.Count > 0)
{
Exception error = (Exception)m_pipeLine.Error.Read();
string message = string.Format(CultureInfo.InvariantCulture,
"Powershell Classifier threw errors before processing files in rule [{0}] - details: [{1}]",
m_ruleName,
error.Message);
ThrowNonPropertyBagException(message, error);
}
// if pipeline terminated try and get termination reason
if (m_pipeLine.Output.EndOfPipeline)
{
string message = string.Format(CultureInfo.InvariantCulture,
"Powershell Classifier terminated abruptly before processing files in rule [{0}] - details: [{1}]",
m_ruleName,
m_pipeLine.PipelineStateInfo.Reason.Message);
ThrowNonPropertyBagException(message, m_pipeLine.PipelineStateInfo.Reason);
}
}
