public void Invoke(object[] args)
{
WeakMulticastDelegate current = this;
int start;
while (current != null)
{
start = Environment.TickCount;
if (current.weakRef == null)
{
current.method.Invoke(null, args);
}
else if (current.weakRef.IsAlive)
{
current.method.Invoke(current.weakRef.Target, args);
}
if ((Environment.TickCount - start) > 500)
{
if (log.IsWarnEnabled)
{
log.Warn("WeakMulticastDelegate Invoke took " + (Environment.TickCount - start) + "ms.|" + current.ToString());
}
}
current = current.prev;
}
}
public static WeakMulticastDelegate Remove(WeakMulticastDelegate weakDelegate, Delegate realDelegate)
{
if (realDelegate == null || weakDelegate == null)
{
return(null);
}
return(weakDelegate.Remove(realDelegate));
}
public WeakMulticastDelegate Combine(Delegate realDelegate)
{
WeakMulticastDelegate head = new WeakMulticastDelegate(realDelegate);
head.prev = this.prev;
this.prev = head;
return this;
}
public WeakMulticastDelegate Combine(Delegate realDelegate)
{
WeakMulticastDelegate head = new WeakMulticastDelegate(realDelegate);
head.prev = this.prev;
this.prev = head;
return(this);
}
public static WeakMulticastDelegate CombineUnique(WeakMulticastDelegate weakDelegate, Delegate realDelegate)
{
if (realDelegate == null)
{
return(null);
}
if (weakDelegate == null)
{
return(new WeakMulticastDelegate(realDelegate));
}
return(weakDelegate.CombineUnique(realDelegate));
}
public WeakMulticastDelegate CombineUnique(Delegate realDelegate)
{
bool found = Equals(realDelegate);
if (!found && prev != null)
{
WeakMulticastDelegate curNode = prev;
while (!found && curNode != null)
{
if (curNode.Equals(realDelegate))
{
found = true;
}
curNode = curNode.prev;
}
}
return(found ? this : this.Combine(realDelegate));
}
/// <summary>
/// Dumps the delegates in this multicast delegate to a string
/// </summary>
/// <returns>The string containing the formated dump</returns>
public string Dump()
{
StringBuilder builder = new StringBuilder();
WeakMulticastDelegate current = this;
int count = 0;
while (current != null)
{
count++;
if (current.weakRef == null)
{
builder.Append("\t");
builder.Append(count);
builder.Append(") ");
builder.Append(current.method.Name);
builder.Append(System.Environment.NewLine);
}
else
{
if (current.weakRef.IsAlive)
{
builder.Append("\t");
builder.Append(count);
builder.Append(") ");
builder.Append(current.weakRef.Target);
builder.Append(".");
builder.Append(current.method.Name);
builder.Append(Environment.NewLine);
}
else
{
builder.Append("\t");
builder.Append(count);
builder.Append(") INVALID.");
builder.Append(current.method.Name);
builder.Append(Environment.NewLine);
}
}
current = current.prev;
}
return(builder.ToString());
}
public WeakMulticastDelegate Remove(Delegate realDelegate)
{
if (Equals(realDelegate))
{
return(this.prev);
}
WeakMulticastDelegate current = this.prev;
WeakMulticastDelegate last = this;
while (current != null)
{
if (current.Equals(realDelegate))
{
last.prev = current.prev;
current.prev = null;
break;
}
last = current;
current = current.prev;
}
return(this);
}
public static WeakMulticastDelegate Remove(WeakMulticastDelegate weakDelegate, Delegate realDelegate)
{
if (realDelegate == null || weakDelegate == null) return null;
return weakDelegate.Remove(realDelegate);
}
public static WeakMulticastDelegate CombineUnique(WeakMulticastDelegate weakDelegate, Delegate realDelegate)
{
if (realDelegate == null) return null;
if (weakDelegate == null) return new WeakMulticastDelegate(realDelegate);
return weakDelegate.CombineUnique(realDelegate);
}
public static WeakMulticastDelegate operator -(WeakMulticastDelegate d, Delegate realD)
{
return(WeakMulticastDelegate.Remove(d, realD));
}
public static WeakMulticastDelegate operator +(WeakMulticastDelegate d, Delegate realD)
{
return(WeakMulticastDelegate.Combine(d, realD));
}