/// <summary>
/// Sets the new execution state.
/// </summary>
/// <param name="state">The new state.</param>
/// <param name="reason">
/// An exception indicating that state change is the result of an error,
/// otherwise; null.
/// </param>
/// <remarks>
/// Sets the internal execution state information member variable. It
/// also adds PipelineStateInfo to a queue. RaisePipelineStateEvents
/// raises event for each item in this queue.
/// </remarks>
protected void SetPipelineState(PipelineState state, Exception reason)
{
lock (SyncRoot)
{
if (state != PipelineState)
{
_pipelineStateInfo = new PipelineStateInfo(state, reason);
// Add _pipelineStateInfo to _executionEventQueue.
// RaisePipelineStateEvents will raise event for each item
// in this queue.
// Note:We are doing clone here instead of passing the member
// _pipelineStateInfo because we donot want outside
// to change pipeline state.
RunspaceAvailability previousAvailability = _runspace.RunspaceAvailability;
_runspace.UpdateRunspaceAvailability(_pipelineStateInfo.State, false);
_executionEventQueue.Enqueue(
new ExecutionEventQueueItem(
_pipelineStateInfo.Clone(),
previousAvailability,
_runspace.RunspaceAvailability));
}
}
}
