/// <summary>
/// Pops all events from the hierarchy up to and including the specified event.
/// And will then pop <paramref name="plus"/> more
/// </summary>
public IUnstoppablePerformanceEvent PopToEvent(IUnstoppablePerformanceEvent @event, int plus)
{
if (_hierarchy.Count == 1)
{
_current.EventCompleted();
return(_current);
}
bool ready = false;
do
{
if (object.ReferenceEquals(_current, @event))
{
ready = true;
}
if (ready)
{
if (plus <= 0)
{
break;
}
plus -= 1;
}
_current.EventCompleted();
if (_hierarchy.Count <= 1)
{
break;
}
_current = _hierarchy.Pop();
} while (true);
return(_current);
}
/// <summary>
/// Changes the current event to the one currently on the top of the stack. The previous current event will be stopped.
/// </summary>
public IUnstoppablePerformanceEvent PopEvent()
{
_current.EventCompleted();
if (_hierarchy.Peek() == _realTotalEvent)
{
return(_current);
}
return(_current = _hierarchy.Pop());
}
/// <summary>
/// Create new scoped event pushing the current one onto the stack. Start / stop times will not
/// be linked but the other timers on the stack will continue measuring time. The pushed event
/// will be defined by the provided stopwatch instead of one created by the performance tracker.
/// The event will be managed in the same way as other events, but some behavior will be dependent
/// on the state of the provided stopwatch.
/// </summary>
public IUnstoppablePerformanceEvent PushCustomEvent(Startwatch watch)
{
if (_current == _beforeFirstEvent)
{
NextEvent();
}
_hierarchy.Push(_current);
return(_current = new PerformanceEvent(watch));
}
/// <summary>
/// Create new scoped event that starts at the same time as the current one, but will have an unlinked
/// stopping time, and can in turn create other siblings for further tracking of time information.
/// </summary>
/// <remarks>This can have better performance and more accurate measurements than PushEvent() when circumstances permit it.</remarks>
public IUnstoppablePerformanceEvent PushFirstEvent()
{
if (_current == _beforeFirstEvent)
{
NextEvent();
}
var newWatch = _current._watch.CreateChild();
_hierarchy.Push(_current);
return(_current = new PerformanceEvent(newWatch));
}
/// <summary>
/// Completes the total timer on the performance tracker, as well as all other active events currently tracked,
/// and pops all events from the monitoring hierarchy
/// </summary>
/// <returns><see cref="TotalEvent" /></returns>
public IUnstoppablePerformanceEvent Complete()
{
_current.EventCompleted();
while (_hierarchy.Count > 1)
{
_current = _hierarchy.Pop();
// calling event completed won't always be necesarry because some events may be linked
// but it's safe to call this multiple times, so we will go ahead and do it
_current.EventCompleted();
}
_realTotalEvent.EventCompleted();
return(TotalEvent);
}
public PerformanceEventTracker()
{
var setupWatch = new Startwatch();
_setupEvent = new PerformanceEvent(setupWatch);
var realTotalWatch = setupWatch.CreateSibling();
_realTotalEvent = new PerformanceEvent(realTotalWatch);
var beforeFirstWatch = realTotalWatch.CreateChild();
_beforeFirstEvent = new PerformanceEvent(beforeFirstWatch);
_current = _beforeFirstEvent;
_hierarchy = new Stack <PerformanceEvent>();
_hierarchy.Push(_realTotalEvent);
_setupEvent.EventCompleted();
}
/// <summary>
/// Create new scoped event, where the stop time of the event will be linked to the stop time of the one on the top of the stack.
/// The current scoped event timer will be stopped.
/// The new 'current' scoped event will be the one which was on the top of the stack.
/// The return value of the function is the new scoped event that was created.
/// </summary>
/// <remarks>One would generally use this for the last event in the scope of some series of events being tracked.</remarks>
public IUnstoppablePerformanceEvent PopLastEvent()
{
_current.EventCompleted();
PerformanceEvent next;
if (_hierarchy.Peek() == _realTotalEvent)
{
next = _current;
}
else
{
next = _hierarchy.Pop();
}
var result = new PerformanceEvent(_current._watch.CreateLastSibling(next._watch));
_current = next;
// link the completion behaviors between the two so they coincide
_current.WhenComplete(evt => result.EventCompleted());
result.WhenComplete(evt => _current.EventCompleted());
return(result);
}
/// <summary>
/// Create a scoped event that starts at the time of the call to NewEvent(), this can
/// differ from the behavior of NextEvent() in subtle ways.
/// If the previous event was not stopped prior to calling NewEvent(), the previous event
/// will be stopped automatically.
/// </summary>
public IUnstoppablePerformanceEvent NewEvent()
{
_current.EventCompleted();
return(_current = new PerformanceEvent(new Startwatch()));
}
/// <summary>
/// Create a scoped event that starts at the same time as the previous event completed.
/// If the previous event was stopped prior to calling NextEvent(), the time for the event
/// will still include all time since the prior event stopping.
/// If the previous event was not stopped prior to calling NextEvent(), the previous event
/// will be stopped automatically.
/// </summary>
public IUnstoppablePerformanceEvent NextEvent()
{
_current.EventCompleted();
_current = new PerformanceEvent(_current._watch.CreateSibling());
return(_current);
}
/// <summary>
/// Creates a scoped event that is defined by the provided stopwatch. The event will be managed
/// in the same way as other performance events, but some behavior is going to be
/// dependent on the state of the provided stopwatch.
/// If the previous event was not stopped prior to calling NewEvent(), the previous event
/// will be stopped automatically.
/// </summary>
public IUnstoppablePerformanceEvent AddCustomEvent(Startwatch watch)
{
_current.EventCompleted();
return(_current = new PerformanceEvent(watch));
}
