internal void AddBinding(PSVariable variable, EventInfo eventInfo, string queueName) { Guid bindindID = Guid.NewGuid(); lock (s_bindings) { s_bindings.Add(bindindID, new WeakReference(variable)); WriteDebug("Added PSVariable tracking entry."); } try { Delegate handler = PSEventHelper.BindEventSink(variable, eventInfo, bindindID, queueName); WriteDebug("Event sink bound."); PSEventBindingAttribute attr = new PSEventBindingAttribute(eventInfo.Name, handler, bindindID); variable.Attributes.Add(attr); WriteDebug("Added binding attribute to PSVariable."); } catch (Exception ex) { m_command.WriteWarning(String.Format("Error binding to {0} on {1}: {2}", eventInfo.Name, variable.Name, ex.Message)); s_bindings.Remove(bindindID); WriteDebug("Removed PSVariable tracking entry."); throw; } }
internal void RemoveBinding(PSVariable variable, string eventName) { // need for instead of foreach (need to modify collection) for (int index = 0; index < variable.Attributes.Count; index++) { PSEventBindingAttribute bindingAttr = variable.Attributes[index] as PSEventBindingAttribute; if (bindingAttr != null) { if (bindingAttr.EventName.Equals(eventName, StringComparison.OrdinalIgnoreCase)) { PSEventHelper.UnbindEventSink(variable, eventName, bindingAttr.Handler); WriteDebug("Unbound event sink from variable."); variable.Attributes.Remove(bindingAttr); WriteDebug("Removed binding attribute from PSVariable."); // remove PSVariable tracker lock (s_bindings) { s_bindings.Remove(bindingAttr.BindingID); WriteDebug("Removed PSVariable tracking entry."); } } } } }
internal List <PSEventBindingInfo> GetBindings(PSVariable variable, bool includeUnboundEvents) { object targetObject = variable.Value; if (targetObject == null) { return(null); } if (targetObject is PSObject) { targetObject = ((PSObject)targetObject).BaseObject; } Type targetType = targetObject.GetType(); List <PSEventBindingInfo> bindingInfos = new List <PSEventBindingInfo>(); // find currently bound events foreach (Attribute attr in variable.Attributes) { PSEventBindingAttribute bindingAttr = attr as PSEventBindingAttribute; if (bindingAttr != null) { WriteDebug("Found " + bindingAttr.EventName + " binding on " + variable.Name); PSEventBindingInfo bindingInfo = new PSEventBindingInfo(variable.Name, bindingAttr.EventName, targetType.Name, true); bindingInfos.Add(bindingInfo); } } if (includeUnboundEvents) { AddUnboundEvents(variable, targetType, bindingInfos); } // no point sorting an empty list, or one with a single value ;-) if (bindingInfos.Count > 1) { // sort by event name bindingInfos.Sort(new Comparison <PSEventBindingInfo>( delegate(PSEventBindingInfo info1, PSEventBindingInfo info2) { return(info1.EventName.CompareTo(info2.EventName)); })); } return(bindingInfos); }